ACT8600 Rev 4, 10-Sep-14 Advanced PMU for Ingenic JZ4760/60B/70 Processors FEATURES GENERAL DESCRIPTION Optimized for Ingenic JZ4760, JZ4760B, and The ACT8600 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Ingenic JZ4760, JZ4760B and JZ4770 processors. JZ4770 Processors Three Step-Down DC/DC Converters One Step-Up DC/DC Converter USB OTG Switch with 600mA Current Limit Four Low-Noise LDOs Two Low IQ Keep-Alive LDOs Backup Battery Charger Single-Cell Li+ActivePathTM Battery Charger I2CTM Serial Interface Interrupt Controller This device features three highly efficient step-down DC/DC converters, one step-up DC/DC converter, four low-noise, low-dropout linear regulators, and two Low IQ always on Keep-Alive linear regulators, a current limit switch for USB OTG, along with a complete battery charging solution featuring the advanced ActivePathTM system-power selection function. The ACT8600 is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package. Power On Reset Interface and Sequencing Controller Minimum External Components 5x5mm TQFN55-40 Package 0.75mm Package Height Pb-Free and RoHS Compliant SYSTEM BLOCK DIAGRAM ActivePMU TM Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -1- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TABLE OF CONTENTS General Information ..................................................................................................................................... p. 01 Functional Block Diagram ............................................................................................................................ p. 04 Ordering Information .................................................................................................................................... p. 05 Pin Configuration ......................................................................................................................................... p. 05 Pin Descriptions ........................................................................................................................................... p. 06 Absolute Maximum Ratings ......................................................................................................................... p. 08 I2C Interface Electrical Characteristics ........................................................................................................ p. 09 Global Register Map .................................................................................................................................... p. 10 Register and Bit Descriptions ...................................................................................................................... p. 11 System Control Electrical Characteristics.................................................................................................... p. 16 Step-Down DC/DC Electrical Characteristics .............................................................................................. p. 17 Step-Up DC/DC Electrical Characteristics................................................................................................... p. 18 Low-Noise LDO Electrical Characteristics ............................................................................................ p. 19 Low-IQ LDO Electrical Characteristics ........................................................................................................ p. 20 OTG Subsystem Electrical Characteristics.................................................................................................. p. 20 ActivePathTM Charger Electrical Characteristics........................................................................................ p. 21 Typical Performance Characteristics..........................................................................................p. 23 System Control Information ......................................................................................................................... p. 34 Interfacing with the Ingenic JZ4770 Processor .............................................................................. p. 34 Control Signals ............................................................................................................................... p. 34 Power Control Sequences .............................................................................................................. p. 35 Functional Description ................................................................................................................................. p. 37 I2C Interface .................................................................................................................................... p. 37 Interrupt Service Routine ................................................................................................................ p. 37 Housekeeping Functions ................................................................................................................ p. 37 Thermal Protection ......................................................................................................................... p. 38 Step-Down DC/DC Regulators .................................................................................................................... p. 39 General Description ........................................................................................................................ p. 39 Output Current Capability ............................................................................................................... p. 39 100% Duty Cycle Operation ........................................................................................................... p. 39 Operating Mode .............................................................................................................................. p. 39 Synchronous Rectification .............................................................................................................. p. 39 Soft-Start ......................................................................................................................................... p. 39 Compensation................................................................................................................................. p. 39 Configuration Options ..................................................................................................................... p. 39 Configurable Step-Up DC/DC ...................................................................................................................... p. 40 General Description ........................................................................................................................ p. 40 5V Applications ............................................................................................................................... p. 40 Compensation and Stability ............................................................................................................ p. 40 Configuration Options ..................................................................................................................... p. 40 Low-Dropout Linear Regulators ................................................................................................................... p. 41 General Description ........................................................................................................................ p. 41 LDO Output Voltage Programming................................................................................................. p. 41 Enabling and Disabling the LDOs................................................................................................... p. 41 Power-OK ....................................................................................................................................... p. 41 Interrupts ......................................................................................................................................... p. 41 Optional LDO Output Discharge ..................................................................................................... p. 41 Output Capacitor Selection ............................................................................................................. p. 41 Backup Battery Charger ................................................................................................................. p. 41 Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -2- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TABLE OF CONTENTS USB OTG ..................................................................................................................................................... p. 44 General Description ........................................................................................................................ p. 44 TM Single-Cell Li+ ActivePath Charger ......................................................................................................... p. 45 General Description ........................................................................................................................ p. 45 TM ActivePath Architecture............................................................................................................... p. 45 System Configuration Optimization ................................................................................................ p. 45 Input Protection for CHGIN ............................................................................................................. p. 45 Battery Management ...................................................................................................................... p. 45 Charge Current Programming ........................................................................................................ p. 46 Charge Input Interrupts ................................................................................................................... p. 46 Charge-Control State Machine ....................................................................................................... p. 47 Thermal Regulation ........................................................................................................................ p. 49 Charge Safety Timers ..................................................................................................................... p. 49 Charge Status Indicator .................................................................................................................. p. 49 Reverse-Current Protection ............................................................................................................ p. 49 Battery Temperature Monitoring ..................................................................................................... p. 49 TQFN55-40 Package Outline and Dimensions ............................................................................................ p.51 Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -3- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 FUNCTIONAL BLOCK DIAGRAM Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -4- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 ORDERING INFORMATION PART NUMBER VOUT1 VOUT2 VOUT3 VOUT4 VOUT5 VOUT6 VOUT7 VOUT8 VOUT9 VOUT10 PACKAGE PINS ACT8600QJ162-T 1.2V 3.3V 1.8V TEMPERATUR E RANGE 5V 2.5V 3.3V 1.2V 1.8V 3.3V 1.2V TQFN55-40 40 -40C to +85C ACT8600QJ601-T 3.3V 1.8V 1.2V 5V 2.5V 3.3V 1.2V 1.8V 3.3V 1.2V TQFN55-40 40 -40C to +85C : All Active-Semi components are RoHS Compliant and with Pb-free plating unless specified differently. The term Pb-free means semiconductor products that are in compliance with current RoHS (Restriction of Hazardous Substances) standards. : Standard product options are identified in this table. Contact factory for custom options. Minimum order quantity is 12,000 units. : ACT8600QJ162-T is dedicated to Ingenic's application. : ACT8600QJ601-T is dedicated to Bloomberg's application. ACT8600QJ_ _ _ -T Active-Semi Product Number Package Code Pin Count Option Code Tape and Reel PIN CONFIGURATION OUT10 PWREN GP4 OUT9 nIRQ 5VIN VP3 SW3 VBUS OUT3 GP3 CHGIN VSYS INL OUT5 VSYS OUT7 OUT6 BAT OUT8 TOP VIEW Thin - QFN (TQFN55-40) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -5- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 PIN DESCRIPTIONS PIN NAME DESCRIPTION 1, 40 BAT 2 nSTAT Active-Low Open-Drain Charger Status Output. nSTAT has a 8mA (typ.) current limit, allowing it to directly drive an indicator LED without additional external components. 3 nRSTO Active low open-drain Reset Output. 4 REFBP Reference Bypass. Connect a 0.047F ceramic capacitor from REFBP to GA. 5 GA Ground. 6 TH Temperature Sensing Input. 7 ISET 8 CHGLEV 9 SDA Data Input for I2C Serial Interface. Data is read on the rising edge of SCL. 10 SCL Clock Input for I2C Serial Interface. 11 OUT8 REG8 Output. Bypass it to ground with a 2.2F capacitor. 12 OUT7 REG7 Output. Bypass it to ground with a 2.2F capacitor. 13 INL 14 OUT6 REG6 Output. Bypass it to ground with a 2.2F capacitor. 15 OUT5 REG5 Output. Bypass it to ground with a 2.2F capacitor. 16 OUT3 Output voltage sense for REG3. 17 VP3 Power input for REG3. Bypass to GP3 with a high quality ceramic capacitor placed as close to the IC as possible. 18 GP3 Power Ground for REG3. Connect GA, GP12, GP3 and GP4 together at a single point as close to the IC as possible. 19 SW3 Switch Node for REG3. 20 GP4 Power Ground for REG4. Connect GA, GP12 and GP3 together at a single point as close to the IC as possible. Battery charger output. Connect this pin directly to the battery anode (+ terminal). Charge Current Set. Program the maximum charge current by connecting a resistor (RISET) between ISET and GA. Charge Current Selection Input. Power Input for the LDOs. Bypass to GA with a high quality ceramic capacitor placed as close to the IC as possible. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -6- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 PIN DESCRIPTIONS CONT'D PIN NAME DESCRIPTION 21 SW4 Switch Node for REG4. 22 OUT4 REG4 Output. 23 NC 24 OUT2 25 VP2 Power Input for REG2. Bypass to GP12 with a high quality ceramic capacitor placed to the IC as close as possible. 26 SW2 Switch Node for REG2. 27 GP12 Power Ground for REG1 and REG2. Connect GA, GP12 and GP3 together at a single point as close to the IC as possible. 28 SW1 Switch Node for REG1. 29 VP1 Power Input for REG1. Bypass to GP12 with a high quality ceramic capacitor placed to the IC as close as possible. 30 OUT1 31 PWREN 32 nIRQ 33 OUT10 REG10 Output. Bypass it to GA with a 0.47F capacitor. 34 OUT9 REG9 Output. Bypass it to GA with a 1F capacitor. 35 5VIN 5V Input pin for OTG switch (optionally from OUT4 or external 5V source). 36 VBUS USB VBUS. 37 CHGIN Power Input for the Battery Charger. Bypass CHGIN to GA with a capacitor placed as close to the IC as possible. The battery charger is automatically enabled when a valid voltage is present on CHGIN . 38, 39 VSYS System Output Pins. Bypass to GA with a 10F or larger ceramic capacitor. EP EP No Connect. Output Voltage Sense for REG2. Output Voltage Sense for REG1. Master enable pin. Open-Drain Interrupt Output. Exposed Pad. Must be soldered to ground on PCB. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -7- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 ABSOLUTE MAXIMUM RATINGS PARAMETER VALUE UNIT VP1, VP2 to GP12 VP3 to GP3 -0.3 to + 6 V BAT, VSYS, INL, VBUS, 5VIN to GA -0.3 to + 6 V CHGIN to GA -0.3 to + 14 V SW1, OUT1 to GP12 -0.3 to (VVP1 + 0.3) V SW2, OUT2 to GP12 -0.3 to (VVP2 + 0.3) V SW3, OUT3 to GP3 -0.3 to (VVP3 + 0.3) V SW4, OUT4 to GP4 -0.3 to + 42 V nIRQ, nRSTO, nSTAT to GA -0.3 to + 6 V -0.3 to (VVSYS + 0.3) V -0.3 to (VINL + 0.3) V -0.3 to + 0.3 V Operating Ambient Temperature -40 to 85 C Maximum Junction Temperature 125 C Maximum Power Dissipation TQFN55-40 (Thermal Resistance=30C/W) 3.2 W -65 to 150 C 300 C PWREN, SCL, SDA, CHGLEV, TH, ISET, REFBP to GA OUT5, OUT6, OUT7, OUT8, OUT9, OUT10 to GA GP12, GP3, GP4 to GA Storage Temperature Lead Temperature (Soldering, 10 sec) : Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -8- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 I2C INTERFACE ELECTRICAL CHARACTERISTICS (VVSYS = 3.6V, TA = 25C, unless otherwise specified.) PARAMETER TEST CONDITIONS MIN SCL, SDA Input Low VVSYS = 3.1V to 5.5V, TA = -40C to 85C SCL, SDA Input High VVSYS = 3.1V to 5.5V, TA = -40C to 85C TYP MAX UNIT 0.35 V 1.55 V SDA Leakage Current 0 1 A SCL Leakage Current 0 1 A 0.35 V SDA Output Low IOL = 5mA SCL Clock Period, tSCL 1.5 s SDA Data Setup Time, tSU 100 ns SDA Data Hold Time, tHD 300 ns Start Setup Time, tST For Start Condition 100 ns Stop Setup Time, tSP For Stop Condition 100 ns Figure 1: I2C Compatible Serial Bus Timing tSCL SCL tST tHD tSU tSP SDA Start condition Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. Stop condition -9- www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 GLOBAL REGISTER MAP BITS OUTPUT SYS SYS REG1 REG1 REG2 REG2 ADDRESS 0x00 0x01 0x10 0x12 0x20 0x22 REG3 0x30 REG3 0x32 REG4 0x40 REG4 0x41 REG5 REG5 REG6 REG6 REG7 REG7 0x50 0x51 0x60 0x61 0x70 0x71 REG8 0x80 REG8 0x81 REG910 0x91 APCH 0xA1 APCH APCH APCH OTG OTG INT 0xA8 0xA9 0xAA 0xB0 0xB2 0xC1 NAME D7 D6 D5 D4 D3 D2 D1 D0 nSYSLEVMSK nSYSSTAT VSYSDAT Reserved SYSLEV[3] SYSLEV[2] SYSLEV[1] SYSLEV[0] DEFAULT 0 R R 0 0 0 0 0 NAME nTMSK TSTAT Reserved Reserved Reserved Reserved Reserved Reserved DEFAULT 0 R 0 0 0 0 0 0 NAME Reserved Reserved VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 0 0 1 1 0 0 0 NAME ON Reserved Reserved Reserved Reserved PHASE nFLTMSK OK DEFAULT 1 0 0 0 0 0 0 R NAME Reserved Reserved VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 0 1 1 1 0 0 1 NAME ON Reserved Reserved Reserved Reserved PHASE nFLTMSK OK DEFAULT 1 0 0 0 0 1 0 R NAME Reserved Reserved VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 0 1 0 0 1 0 0 NAME ON Reserved Reserved Reserved Reserved PHASE nFLTMSK OK DEFAULT 1 0 0 0 0 0 0 R NAME VSET[7] VSET[6] VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 1 0 1 0 1 0 0 NAME ON Reserved Reserved Reserved Reserved Reserved Reserved OK DEFAULT 0 0 0 0 0 0 0 R NAME Reserved Reserved VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 1 1 1 0 0 0 1 NAME ON Reserved Reserved Reserved Reserved DIS nFLTMSK OK DEFAULT 1 0 0 0 0 1 0 R NAME Reserved Reserved VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 0 1 1 1 0 0 1 NAME ON Reserved Reserved Reserved Reserved DIS nFLTMSK OK DEFAULT 0 0 0 0 0 1 0 R NAME Reserved Reserved VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 0 0 1 1 0 0 0 NAME ON Reserved Reserved Reserved Reserved DIS nFLTMSK OK DEFAULT 0 0 0 0 0 1 0 R NAME Reserved Reserved VSET[5] VSET[4] VSET[3] VSET[2] VSET[1] VSET[0] DEFAULT 0 0 1 0 0 1 0 0 NAME ON Reserved Reserved Reserved Reserved DIS nFLTMSK OK DEFAULT 0 0 0 0 0 1 0 R NAME ON9 ON10 Reserved Reserved Reserved Reserved Reserved Reserved DEFAULT 1 0 0 0 0 0 0 0 NAME SUSCHG Reserved TOTTIMO[1] TOTTIMO[0] PRETIMO[1] PRETIMO[0] CHGLEV OVPSET[0] DEFAULT 0 0 1 0 1 0 0 0 NAME TIMRSTAT TEMPSTAT INSTAT CHGSTAT TIMRDAT TEMPDAT INDAT CHGDAT DEFAULT R R R R R R R R NAME TIMRTOT TEMPIN INCON CHGEOCIN TIMRPRE TEMPOUT INDIS CHGEOCOUT DEFAULT 0 0 0 0 0 0 0 0 NAME CHG_ACIN CHG_USB CSTATE[0] CSTATE[1] Reserved Reserved Reserved CHGLEVSTAT DEFAULT R R R R R R R R NAME ONQ1 ONQ2 ONQ3 Q1OK Q2OK VBUSSTAT DBILIMQ3 VBUSDAT DEFAULT 0 0 1 R R R 0 R NAME INVBUSR INVBUSF Reserved Reserved nFLTMSKQ1 nFLTMSKQ2 nVBUSMSK Reserved DEFAULT 0 0 0 0 0 0 0 0 NAME INTADR7 INTADR6 INTADR5 INTADR4 INTADR3 INTADR2 INTADR1 INTADR0 DEFAULT R R R R R R R R : Default values of ACT8600QJ162-T. Note: Every Reserved bit should be kept as Default Value Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 10 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 REGISTER AND BIT DESCRIPTIONS OUTPUT ADDRESS BIT NAME ACCESS DESCRIPTION VSYS Voltage Level Interrupt Mask. Set this bit to 1 to unmask the interrupt. See the Programmable System Voltage Monitor section for more information SYS 0x00 [7] nSYSLEVMSK R/W SYS 0x00 [6] nSYSSTAT R System Voltage Status. Value is 1 when SYSLEV interrupt is generated, value is 0 otherwise. SYS 0x00 [5] VSYSDAT R VSYS Voltage Monitor real time status. Value is 1 when VVSYS < SYSLEV, value is 0 otherwise. SYS 0x00 [4] - R Reserved. SYS 0x00 [3:0] SYSLEV R/W System Voltage Detect Threshold. Defines the SYSLEV voltage threshold. See the Programmable System Voltage Monitor section for more information. SYS 0x01 [7] nTMSK R/W Thermal Interrupt Mask. Set this bit to 1 to unmask the interrupt. SYS 0x01 [6] TSTAT R Thermal Interrupt Status. Value is 1 when a thermal interrupt is generated, value is 0 otherwise. SYS 0x01 [5:0] - R Reserved. REG1 0x10 [7:6] - R Reserved. REG1 0x10 [5:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG1 0x12 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG1 0x12 [6:3] - R Reserved. REG1 0x12 [2] PHASE R/W Regulator Phase Control. Set bit to 1 for the regulator to operate 180 out of phase with the oscillator, clear bit to 0 for the regulator to operate in phase with the oscillator. REG1 0x12 [1] nFLTMSK R/W Regulator Fault Mask Control. Set bit to 1 enable fault-interrupts, clear bit to 0 to disable fault-interrupts. REG1 0x12 [0] OK R Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. REG2 0x20 [7:6] - R Reserved. REG2 0x20 [5:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG2 0x22 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG2 0x22 [6:3] - R Reserved. REG2 0x22 [2] PHASE R/W Regulator Phase Control. Set bit to 1 for the regulator to operate 180 out of phase with the oscillator, clear bit to 0 for the regulator to operate in phase with the oscillator. REG2 0x22 [1] nFLTMSK R/W Regulator Fault Mask Control. Set bit to 1 enable fault-interrupts, clear bit to 0 to disable fault-interrupts. REG2 0x22 [0] OK R Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. - 11 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 REGISTER AND BIT DESCRIPTIONS CONT'D OUTPUT ADDRESS BIT NAME ACCESS DESCRIPTION REG3 0x30 [7:6] - R REG3 0x30 [5:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG3 0x32 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG3 0x32 [6:3] - R Reserved. Reserved. REG3 0x32 [2] PHASE R/W Regulator Phase Control. Set bit to 1 for the regulator to operate 180 out of phase with the oscillator, clear bit to 0 for the regulator to operate in phase with the oscillator. REG3 0x32 [1] nFLTMSK R/W Regulator Fault Mask Control. Set bit to 1 enable faultinterrupts, clear bit to 0 to disable fault-interrupts. REG3 0x32 [0] OK R REG4 0x40 [7:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG4 0x41 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG4 0x41 [6:1] - R Reserved. REG4 0x41 [0] OK R Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. REG5 0x50 [7:6] - R Reserved. REG5 0x50 [5:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG5 0x51 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG5 0x51 [6:3] - R Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. Reserved. REG5 0x51 [2] DIS R/W Output Discharge Control. When activated, LDO output is discharged to GA through 1.5k resistor when in shutdown. Set bit to 1 to enable output voltage discharge in shutdown, clear bit to 0 to disable this function. REG5 0x51 [1] nFLTMSK R/W Regulator Fault Mask Control. Set bit to 1 enable faultinterrupts, clear bit to 0 to disable fault-interrupts. REG5 0x51 [0] OK R REG6 0x60 [7:6] - R Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. Reserved. REG6 0x60 [5:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG6 0x61 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG6 0x61 [6:3] - R Reserved. REG6 0x61 [2] DIS R/W Output Discharge Control. When activated, LDO output is discharged to GA through 1.5k resistor when in shutdown. Set bit to 1 to enable output voltage discharge in shutdown, clear bit to 0 to disable this function. REG6 0x61 [1] nFLTMSK R/W Regulator Fault Mask Control. Set bit to 1 enable faultinterrupts, clear bit to 0 to disable fault-interrupts. REG6 0x61 [0] OK R Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. - 12 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 REGISTER AND BIT DESCRIPTIONS CONT'D OUTPUT ADDRESS BIT NAME ACCESS REG7 0x70 [7:6] - R DESCRIPTION Reserved. REG7 0x70 [5:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG7 0x71 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG7 0x71 [6:3] - R Reserved. REG7 0x71 [2] DIS R/W Output Discharge Control. When activated, LDO output is discharged to GA through 1.5k resistor when in shutdown. Set bit to 1 to enable output voltage discharge in shutdown, clear bit to 0 to disable this function. REG7 0x71 [1] nFLTMSK R/W Regulator Fault Mask Control. Set bit to 1 enable faultinterrupts, clear bit to 0 to disable fault-interrupts. REG7 0x71 [0] OK R Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. REG8 0x80 [7:6] - R Reserved. REG8 0x80 [5:0] VSET R/W Output Voltage Selection. See the Output Voltage Programming section for more information. REG8 0x81 [7] ON R/W Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG8 0x81 [6:3] - R REG8 0x81 [2] DIS R/W Output Discharge Control. When activated, LDO output is discharged to GA through 1.5k resistor when in shutdown. Set bit to 1 to enable output voltage discharge in shutdown, clear bit to 0 to disable this function. REG8 0x81 [1] nFLTMSK R/W Regulator Fault Mask Control. Set bit to 1 enable faultinterrupts, clear bit to 0 to disable fault-interrupts. REG8 0x81 [0] OK R REG910 0x91 [7] ON9 R/W REG9 Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG910 0x91 [6] ON10 R/W REG10 Enable Bit. Set bit to 1 to enable the regulator, clear bit to 0 to disable the regulator. REG910 0x91 [5:0] - R APCH 0xA1 [7] SUSCHG R/W APCH 0xA1 [6] - R APCH 0xA1 [5:4] TOTTIMO R/W Total Charge Time-out Selection. See the Charge Safety Timers section for more information. APCH 0xA1 [3:2] PRETIMO R/W Precondition Charge Time-out Selection. See the Charge Safety Timers section for more information. APCH 0xA1 [1] CHGLEV R/W Charge Current Selection Input. See Charge Current Programming Section. APCH 0xA1 [0] OVPSET R/W Input Over-Voltage Protection Threshold Selection. See the Input Over-Voltage Protection section for more information. R/W Charge Time-out Interrupt Status. Set this bit with TIMRPRE[ ] and/or TIMRTOT[ ] to 1 to generate an interrupt when charge safety timers expire, read this bit to get charge time-out interrupt status. See the Charge Safety Timers section for more information. APCH 0xA8 [7] TIMRSTAT Reserved. Regulator Power-OK Status. Value is 1 when output voltage exceeds the power-OK threshold, value is 0 otherwise. Reserved. Charge Suspend Control Input. Set bit to 1 to suspend charging, clear bit to 0 to allow charging to resume. Reserved. : Valid only when CHGIN UVLO Threshold<VCHGIN<CHGIN OVP Threshold. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 13 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 REGISTER AND BIT DESCRIPTIONS CONT'D OUTPUT APCH APCH ADDRESS 0xA8 0xA8 BIT [6] [5] NAME TEMPSTAT INSTAT ACCESS DESCRIPTION R/W Battery Temperature Interrupt Status. Set this bit with TEMPIN[ ] and/or TEMPOUT[ ] to 1 to generate an interrupt when a battery temperature event occurs, read this bit to get the battery temperature interrupt status. See the Battery Temperature Monitoring section for more information. R/W Input Voltage Interrupt Status. Set this bit with INCON[ ] and/ or INDIS[ ] to generate an interrupt when UVLO or OVP condition occurs, read this bit to get the input voltage interrupt status. See the Charge Current Programming section for more information. APCH 0xA8 [4] CHGSTAT R/W Charge State Interrupt Status. Set this bit with CHGEOCIN[ ] and/or CHGEOCOUT[ ] to 1 to generate an interrupt when the state machine gets in or out of EOC state, read this bit to get the charger state interrupt status. See the State Machine Interrupts section for more information. APCH 0xA8 [3] TIMRDAT R Charge Timer Status. Value is 1 when precondition time-out or total charge time-out occurs. Value is 0 in other case. APCH 0xA8 [2] TEMPDAT R Temperature Status. Value is 0 when battery temperature is outside of valid range. Value is 1 when battery temperature is inside of valid range. APCH 0xA8 [1] INDAT R Input Voltage Status. Value is 1 when a valid input at CHGIN is present. Value is 0 when a valid input at CHGIN is not present. APCH 0xA8 [0] CHGDAT R Charge State Machine Status. Value is 1 indicates the charger state machine is in EOC state, value is 0 indicates the charger state machine is in other states. APCH APCH APCH 0xA9 0xA9 0xA9 [7] [6] [5] TIMRTOT TEMPIN INCON R/W Total Charge Time-out Interrupt Control. Set both this bit and TIMRSTAT[ ] to 1 to generate an interrupt when a total charge time-out occurs. See the Charge Safety Timers section for more information. R/W Battery Temperature Interrupt Control. Set both this bit and TEMPSTAT[ ] to 1 to generate an interrupt when the battery temperature goes into the valid range. See the Battery Temperature Monitoring section for more information. R/W Input Voltage Interrupt Control. Set both this bit and INSTAT[ ] to 1 to generate an interrupt when CHGIN input voltage goes into the valid range. See the Charge Current Programming section for more information. APCH 0xA9 [4] CHGEOCIN R/W Charge State Interrupt Control. Set both this bit and CHGSTAT[ ] to 1 to generate an interrupt when the state machine goes into the EOC state. See the State Machine Interrupts section for more information. APCH 0xA9 [3] TIMRPRE R/W PRECHARGE Time-out Interrupt Control. Set both this bit and TIMRSTAT[ ] to 1 to generate an interrupt when a PRECHARGE time-out occurs. See the Charge Safety Timers section for more information. R/W Battery Temperature Interrupt Control. Set both this bit and TEMPSTAT[ ] to 1 to generate an interrupt when the battery temperature goes out of the valid range. See the Battery Temperature Monitoring section for more information. APCH 0xA9 [2] TEMPOUT : Valid only when CHGIN UVLO Threshold<VCHGIN<CHGIN OVP Threshold. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 14 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 REGISTER AND BIT DESCRIPTIONS CONT'D OUTPUT ADDRESS APCH 0xA9 BIT [1] NAME INDIS ACCESS DESCRIPTION R/W Input Voltage Interrupt Control. Set both this bit and INSTAT[ ] to 1 to generate an interrupt when CHGIN input voltage goes out of the valid range. See the Charge Current Programming section for more information. Charge State Interrupt Control. Set both this bit and CHGSTAT[ ] to 1 to generate an interrupt when the state machines jumps out of the EOC state. See the State Machine Interrupts section for more information. APCH 0xA9 [0] CHGEOCOUT R/W APCH 0xAA [7] CHG_ACIN R Charge source indicator. Value is 1 when charging from AC source and value is 0 when charging from other source. APCH 0xAA [6] CHG_USB R Charge source indicator. Value is 1 when charging from USB source and value is 0 when charging from other source. APCH 0xAA [5:4] CSTATE R Charge State. Values indicate the current charging state. See the State Machine Interrupts section for more information. APCH 0xAA [3:1] - R Reserved. APCH 0xAA [0] CHGLEVSTAT R CHGLEV pin status. Value is 0 if CHGLEVSTAT is logic low; value is 1 otherwise. OTG 0xB0 [7] ONQ1 R/W OTG Q1 Enable Bit. Set bit to 1 to turn on Q1; clear bit to 0 to turn off Q1. OTG 0xB0 [6] ONQ2 R/W OTG Q2 Enable Bit. Set bit to 1 to turn on Q2; clear bit to 0 to turn off Q2. OTG 0xB0 [5] ONQ3 R/W OTG Q3 Enable Bit. Set bit to 1 to turn on Q3; clear bit to 0 to turn off Q3. OTG 0xB0 [4] Q1OK R OTG Q1 Status. Value is 0 if Q1 can not start up successfully, or in current limit status. OTG 0xB0 [3] Q2OK R OTG Q2 Status. Value is 0 if Q2 can not start up successfully, or in current limit status. OTG 0xB0 [2] VBUSSTAT R VBUS Interrupt Status. Value is 1 if an interrupt is generated by either INVBUSR or INVBUSF. OTG 0xB0 [1] DBILIMQ3 R/W OTG 0xB0 [0] VBUSDAT R OTG 0xB2 [7] INVBUSR R/W VBUS Interrupt control. Set this bit to 1 to generate an interrupt when connecting a charger to VBUS (rising edge of VBUS). OTG 0xB2 [6] INVBUSF R/W VBUS Interrupt control. Set this bit to 1 to generate an interrupt when disconnecting a charger to VBUS (falling edge of VBUS). OTG 0xB2 [5:4] - R OTG 0xB2 [3] nFLTMSKQ1 R/W Q1 Interrupt Mask. Set this bit to 1 to generate an interrupt when the over-current threshold for Q1 is triggered. OTG 0xB2 [2] nFLTMSKQ2 R/W Q2 Interrupt Mask. Set this bit to 1 to generate an interrupt when the over-current threshold for Q2 is triggered. OTG 0xB2 [1] nVBUSMSK R/W VBUS Interrupt Mask. Set this bit to 1 unmask to VBUS connection and/or disconnection interrupt. OTG 0xB2 [0] - R Reserved. INT 0xC1 [ 7:0 ] INTADR R Global Interrupt Address. See the Interrupt Service Routine Section for more information. Set to 1 to double the current limit of Q3. VBUS status. Value is 1 if a valid charging source is present at VBUS. Value is 0 otherwise. Reserved. : Valid only when CHGIN UVLO Threshold<VCHGIN<CHGIN OVP Threshold. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 15 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 SYSTEM CONTROL ELECTRICAL CHARACTERISTICS (VVSYS = 3.6V, TA = 25C, unless otherwise specified.) PARAMETER TEST CONDITIONS Input Voltage Range MIN TYP 2.3 MAX UNIT 5.5 V UVLO Threshold Voltage VVSYS Rising 3.45 V UVLO Hysteresis VVSYS Falling 200 mV Supply Current All Regulators Enabled 420 A Shutdown Supply Current All Regulators Disabled except REG9, VVSYS =3.6V 30 A Oscillator Frequency 2.060 Logic High Input Voltage 2.220 1.4 0.4 nRSTO Delay Temperature rising Thermal Shutdown Hysteresis Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 16 - MHz V Logic Low Input Voltage Thermal Shutdown Temperature 2.380 V 40 ms 160 C 20 C www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS (VVP1 = VVP2 = VVP3 = 3.6V, TA = 25C, unless otherwise specified.) PARAMETER CONDITIONS Operating Voltage Range MIN TYP 2.7 UVLO_VP Threshold Input Voltage Rising 2.5 UVLO_VP Hysteresis Input Voltage Falling 100 Standby Supply Current Regulator Enabled, VVSYS = 3.6V 68 Shutdown Current VVP = 5.5V, Regulator Disabled 0 Output Voltage Accuracy VOUT 1.2V, IOUT = 10mA Line Regulation VVP = Max (VNOM + 1, 3.2V) to 5.5V Load Regulation IOUT = 10mA to IMAX Power Good Threshold Power Good Hysteresis Switching Frequency Soft-Start Period -1.5% 2.6 VNOM MAX UNIT 5.5 V 2.7 V mV 95 A 1 A 1.5% V 0.15 %/V 0.0017 %/mA VOUT Rising 93 %VNOM VOUT Falling 2.5 %VNOM VOUT 20% of VNOM 2.06 2.22 2.38 MHz VOUT = 0V 520 kHz VOUT = 3.3V 500 s Minimum On-Time 75 90 ns REG1 Maximum Output Current 1.2 Current Limit 1.70 A 2.00 2.75 A PMOS On-Resistance ISW1 = -100mA, VVSYS = 3.6V 0.150 NMOS On-Resistance ISW1 = 100mA, VVSYS = 3.6V 0.120 SW1 Leakage Current VVP1 = 5.5V, VSW1 = 0 or 5.5V 0 1 A REG2 Maximum Output Current 1.2 Current Limit 1.70 A 2.00 ISW2 = -100mA, VVSYS = 3.6V 0.150 NMOS On-Resistance ISW2 = 100mA, VVSYS = 3.6V 0.120 SW2 Leakage Current VVP2 = 5.5V, VSW2 = 0 or 5.5V PMOS On-Resistance 0 2.75 A 1 A REG3 Maximum Output Current 0.95 Current Limit 1.10 A 1.45 1.85 A PMOS On-Resistance ISW3 = -100mA 0.150 NMOS On-Resistance ISW3 = 100mA 0.120 SW3 Leakage Current VVP3 = 5.5V, VSW3 = 0 or 5.5V 0 1 A : VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. : IMAX Maximum Output Current. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 17 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 STEP-UP DC/DC ELECTRICAL CHARACTERISTICS (VVP1 = VVP2 = VVP3 = 3.6V, TA = 25C, unless otherwise specified.) PARAMETER CONDITIONS Operating Voltage Range MIN TYP MAX UNIT 6 V 0.8 1.7 mA 2.7 Operating Supply Current Standby Supply Current No switching 80 150 A Shutdown Current VVP = 5.5V, Regulator Disabled 0.1 1 A 3% V Output Voltage Accuracy VOUT = 5V, IOUT = 10mA -3% VNOM Line Regulation 0.019 %/V Load Regulation 0.17 %/mA Power Good Threshold VOUT Rising 93 %VNOM Power Good Hysteresis VOUT Falling 7.5 %VNOM Switching Frequency 1.032 1.110 1.188 MHz Minimum On-Time 80 ns Minimum Off-Time 40 ns Maximum Output Current VOUT = 5V 0.6 Current Limit Switch On-Resistance ISW4 = 100mA SW4 Leakage Current VBAT = 3.6V, VSW4 = 5V, REG4 disabled A 1.35 A 0.48 10 A : VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 18 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 LOW-NOISE LDO ELECTRICAL CHARACTERISTICS (VINL = 3.6V, COUT5 = COUT6 = COUT7 = COUT8 = 2.2F, TA = 25C, unless otherwise specified.) PARAMETER TEST CONDITIONS Operating Voltage Range MIN TYP 2.4 MAX UNIT 5.5 V 1.5% V Output Voltage Accuracy VOUT 1.2V, TA = 25C, IOUT = 10mA Line Regulation VINL = Max (VOUT + 0.5V, 3.6V) to 5.5V, LOWIQ[ ] = [0] 0.5 mV/V Load Regulation IOUT = 1mA to IMAX 0.08 V/A Power Supply Rejection Ratio Supply Current per Output -1.5% VNOM f = 1kHz, IOUT = 20mA, VOUT =1.2V 80 f = 10kHz, IOUT = 20mA, VOUT =1.2V 70 Regulator Enabled 24 Regulator Disabled 0 dB 60 A Soft-Start Period VOUT = 3.0V 100 s Power Good Threshold VOUT Rising 92 % Power Good Hysteresis VOUT Falling 4 % Output Noise IOUT = 20mA, f = 10Hz to 100kHz, VOUT = 1.2V 30 VRMS Discharge Resistance LDO Disabled, DIS[ ] = 1 1.5 k IOUT = 160mA, VOUT > 3.1V 130 REG5 Dropout Voltage Maximum Output Current Current Limit 200 350 VOUT = 95% of regulation voltage Stable COUT5 Range 385 mA 550 2.2 mV mA 20 F 200 mV REG6 Dropout Voltage IOUT = 160mA, VOUT > 3.1V 130 Maximum Output Current Current Limit VOUT = 95% of regulation voltage Stable COUT6 Range 385 350 mA 550 mA 2.2 20 F 300 mV REG7 Dropout Voltage IOUT = 160mA, VOUT > 3.1V 160 Maximum Output Current Current Limit VOUT = 95% of regulation voltage Stable COUT7 Range 275 250 mA 400 mA 2.2 20 F 300 mV REG8 Dropout Voltage IOUT = 160mA, VOUT > 3.1V 160 Maximum Output Current Current Limit 250 VOUT = 95% of regulation voltage Stable COUT8 Range 275 2.2 mA 400 mA 20 F : VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. : IMAX Maximum Output Current. : Dropout Voltage is defined as the differential voltage between input and output when the output voltage drops 100mV below the regulation voltage (for 3.1V output voltage or higher). : LDO current limit is defined as the output current at which the output voltage drops to 95% of the respective regulation voltage. Under heavy overload conditions the output current limit folds back by 50% (typ) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 19 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 LOW-IQ LDO ELECTRICAL CHARACTERISTICS (VVSYS = 3.6V, COUT9 = COUT10 = 1F, TA = 25C, unless otherwise specified.) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 5.5 V REG9 (VDDRTC18) -- VNOM = 3.3V Operating Voltage Range VOUT =1.8V 2.5 Output Voltage Accuracy IOUT = 1mA Line Regulation VVSYS = VOUT + 1.2V to VVSYS = 5.5V Supply Current from VSYS -2.5 VNOM 2 VVSYS < VOUT + 0.7V 10 Stable COUT Range 3.5 0.2 VVSYS = VOUT + 1.2V Maximum Output current % %/V A 5 mA 0.47 F REG10 (VDDRTC12) -- VNOM = 1.2V Operating Voltage Range 1.7 Output Voltage Accuracy IOUT = 1mA Line Regulation VIN = VOUT + 0.5V to VIN = 5.5V -3.5 5.5 VNOM 2.5 0.2 Supply Current from VOUT9 Stable COUT Range % %/V 2 Maximum Output current V A 5 mA 0.22 F OTG SUBSYSTEM ELECTRICAL CHARACTERISTICS (VINL = 3.6V, TA = 25C, unless otherwise specified.) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 5VIN to VBUS (Q1) Switch on resistance 5VIN = 5V, ILOAD = 100mA Current Limit Threshold 500 Current Limit Delay 0.23 700 mA 256 ms 0.34 700 mA 256 ms CHGIN to VBUS (Q2) Switch on resistance CHGIN = 5V, ILOAD = 100mA Current Limit Threshold 500 Current Limit Delay : VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 20 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 ActivePathTM CHARGER ELECTRICAL CHARACTERISTICS (VCHGIN = 5.0V, TA = 25C, unless otherwise specified.) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 6.0 V 3.9 V ActivePath CHGIN Operating Voltage Range 4.35 CHGIN UVLO Threshold CHGIN Voltage Rising CHGIN UVLO Hysteresis CHGIN Voltage Falling CHGIN OVP Threshold CHGIN Voltage Rising CHGIN OVP Hysteresis CHGIN Voltage Falling VBUS_UVLO Threshold VBUS Voltage Rising VBUS_UVLO Hysteresis VBUS Voltage Falling 400 VCHGIN < VUVLO 35 70 A VCHGIN < VBAT + 50mV, VCHGIN > VUVLO 100 200 A VCHGIN > VBAT + 150mV, VCHGIN > VUVLO Charger disabled, IVSYS = 0mA 1.2 2.0 mA IVSYS = 100mA 0.25 2.25 A CHGIN Supply Current CHGIN to VSYS On-Resistance 3.1 0.5 6.0 6.6 V 7.2 0.4 3.3 CHGIN to VSYS Current Limit 1.5 CHGLEV = GA, VVSYS =3.6V VBUS Input Current Limit 3.5 CHGLEV = VVSYS, DBILIMQ3[ ] = 0, VVSYS =3.6V 400 CHGLEV = VVSYS, DBILIMQ3[ ] = 1. 4.0 V V 4.8 V mV 75 110 450 500 mA 900 VSYS REGULATION CHGIN to VSYS Regulated Voltage IVSYS = 10mA 4.45 4.6 4.8 V 4 8 12 mA 1 A nSTAT OUTPUT nSTAT Sink current VnSTAT = 2V nSTAT Leakage Current VnSTAT = 4.2V CHGLEV INPUTS CHGLEV Logic High Input Voltage 1.4 V CHGLEV Logic Low Input Voltage CHGLEV Leakage Current VCHGLEV = 4.2V 0.4 V 1 A TH INPUT TH Pull-Up Current VCHGIN > VBAT + 100mV, Hysteresis = 50mV 91 100 109 A VTH Upper Temperature Voltage Threshold (VTHH) Hot Detect NTC Thermistor 2.45 2.50 2.54 V VTH Lower Temperature Voltage Threshold (VTHL) Cold Detect NTC Thermistor 0.482 0.50 0.518 V VTH Hysteresis Upper and Lower Thresholds Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 21 - 40 mV www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 ActivePathTM CHARGER ELECTRICAL CHARACTERISTICS CONT'D (VCHGIN = 5.0V, TA = 25C, unless otherwise specified.) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CHARGER BAT Reverse Leakage Current VCHGIN = 0V, VBAT = 4.2V, IVSYS = 0mA, All REGs are OFF. BAT to VSYS On-Resistance ISET Pin Voltage Charge Termination Voltage m Precondition 0.13 V TA = -20C to 70C 4.179 4.200 4.221 TA = -40C to 85C 4.170 4.200 4.230 -10% ICHG +10% VBAT = 3.8V VBAT = 2.7V USB-Mode, CHGLEV = VVSYS, DBILIMQ3[ ] = 0. Min (450mA, ICHG ) USB-Mode, CHGLEV = VVSYS, DBILIMQ3[ ] = 1. Min (900mA, ICHG ) AC-Mode 10% ICHG 10% ICHG USB-Mode, CHGLEV = VVSYS, DBILIMQ3[ ] = 1. 10% ICHG VBAT Voltage Rising Precondition Threshold Hysteresis VBAT Voltage Falling VBAT = 4.15V mA Min (75mA, 10% x ICHG ) USB-Mode, CHGLEV = VVSYS, DBILIMQ3[ ] = 0. Precondition Threshold Voltage V Min (75mA, ICHG ) USB-Mode, CHGLEV = GA END-OF-CHARGE Current Threshold 70 1.2 USB-Mode, CHGLEV = GA Precondition Charge Current A Fast Charge AC-Mode Charge Current 15 2.7 2.9 mA 3.1 150 AC-Mode, CHGLEV = VVSYS 10% ICHG AC-Mode, CHGLEV = GA 10% ICHG USB-Mode, CHGLEV = VVSYS 45 USB-Mode, CHGLEV = GA 45 V mV mA Charge Restart Threshold VVSYS - VBAT, VBAT Falling Precondition Safety Timer PRETIMO[ ] = 10 80 min Total Safety Timer TOTTIMO[ ] = 10 6.5 hr 100 C 170 Thermal Regulation Threshold 200 230 mV : RISET (k) = 2336 x (1V/ICHG (mA)) - 0.205 Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 22 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS (VVSYS = 3.6V, TA = 25C, unless otherwise specified.) Frequency vs. Temperature VREF vs. Temperature VREF (%) 0.80 0.40 0 -1 Frequency (%) 1.20 0 ACT8600-002 ACT8600-001 1.60 -2 -3 -4 -5 -0.40 -0.80 -40 VBAT = 3.7V -6 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 Temperature (C) Temperature (C) PWREN Sequence VBAT Connect ACT8600-004 ACT8600-003 CH1 CH1 CH2 CH3 CH2 CH4 CH3 CH5 CH1: VBAT, 2V/div CH2: VOUT9, 2V/div CH3: VOUT10, 1V/div TIME: 400s/div CH1: VPWREN, 2V/div CH2: VOUT3, 1V/div CH3: VOUT2, 2V/div CH4: VOUT1, 1V/div CH5: VOUT5, 2V/div TIME: 400s/div nRSTO Startup Sequence ACT8600-005 CH1 CH2 CH3 CH4 CH1: VPWREN, 2V/div CH2: VOUT3, 1V/div CH3: VOUT1, 1V/div CH4: VnRSTO, 2V/div TIME: 20ms/div Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 23 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) Q1 Dropout Voltage vs. IVBUS Q2 Dropout Voltage vs. IVBUS 100 80 60 40 20 Q2 Dropout Voltage (mV) Q1 Dropout Voltage (mV) 120 180 160 140 120 100 80 60 40 20 0 0 50 100 150 ACT8600-007 ACT8600-006 140 0 0 200 250 300 350 400 450 500 50 100 150 IVBUS (mA) IVBUS (mA) Q1 Quiescent Current vs. 5VIN Voltage Q2 Quiescent Current vs. CHGIN Voltage 64 62 60 58 56 80 Quiescent Current (A) 66 90 ACT8600-009 ACT8600-008 68 Q1 Quiescent Current (A) 200 250 300 350 400 450 500 70 60 50 40 30 20 10 54 0 4 4.3 4.6 4.9 5.2 5 5.5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 CHGIN Voltage (V) 5VIN Voltage (V) Q1 Shutdown Current vs. 5VIN Voltage ACT8600-010 Shutdown Current (A) 8 7 6 5 4 3 2 4 4.3 4.6 4.9 5.2 5.5 5VIN Voltage (V) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 24 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) VBUS Voltage vs. IVBUS (CHGIN Supply) VBUS Voltage vs. IVBUS Current (Supplied from 5VIN) VBUS Voltage (V) 5.1 5.0 4.9 4.8 4.7 4.6 5.3 5.2 VBUS Voltage (V) 5.2 5.1 5.0 4.9 4.8 4.7 4.6 4.5 4.4 ACT8600-012 ACT8600-011 5.3 4.5 0 100 200 300 400 500 600 0 700 100 200 REG1 Efficiency vs. Output Current Efficiency (%) VIN = 5.0V VIN = 4.2V VIN = 5.0V VIN = 4.2V 60 40 20 0 0 1 10 100 1000 10000 1 10 Output Current (mA) VIN = 4.2V 40 20 100 VOUT = 5V VIN = 4.2V 80 Efficiency (%) VIN = 5.0V 60 10000 ACT8600-016 VIN = 3.6V 80 1000 REG4 Efficiency vs. Output Current ACT8600-015 VOUT = 1.8V 100 Output Current (mA) REG3 Efficiency vs. Output Current 100 Efficiency (%) 700 VIN = 3.6V VOUT = 3.3V 80 Efficiency (%) VIN = 3.6V 100 20 0 600 ACT8600-014 ACT8600-013 VOUT = 1.4V 40 500 REG2 Efficiency vs. Output Current 100 60 400 IVBUS Current (mA) IVBUS Current (mA) 80 300 VIN = 3.0V VIN = 3.6V 60 40 20 1 10 100 0 1000 Output Current (mA) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. 1 10 100 1000 Output Current (mA) - 25 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) REG2 Output Voltage vs. Temperature REG1 Output Voltage vs. Temperature Output Voltage (V) 1.230 1.210 1.190 1.170 3.400 Output Voltage (V) VOUT1 = 1.2V IOUT = 100mA ACT8600-018 ACT8600-017 1.250 VOUT2 = 3.3V ILOAD = 100mA 3.350 3.300 3.250 3.200 1.150 -40 -20 0 20 40 60 80 100 -40 120 -20 0 200 RDSON (m) Output Voltage (V) 1.800 1.750 100 120 PMOS 100 NMOS 50 0 -40 -20 0 20 40 60 80 100 120 3.3 3.55 3.8 Temperature (C) 150 NMOS 50 4.3 4.8 4.8 5.05 5.3 5.55 5.3 5.8 800 700 REG4 Resistance (m) PMOS 3.8 4.55 600 500 400 300 200 100 3.4 Input Voltage (V) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. ACT8600-022 ACT8600-021 200 3.3 4.3 REG4 Resistance vs. Battery Voltage ILOAD = 100mA 100 4.05 Input Voltage (V) REG3 MOSFET Resistance Resistance (m) 80 ILOAD = 100mA 150 1.700 0 60 ACT8600-020 ACT8600-019 VOUT3 = 1.8V ILOAD = 100mA 1.850 250 40 REG1, 2 MOSFET Resistance REG3 Output Voltage vs. Temperature 1.900 20 Temperature (C) Temperature (C) 3.6 3.8 4.0 4.2 4.4 Battery Voltage (V) - 26 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) REG5 Output Voltage vs. Output Current REG6 Output Voltage vs. Output Current Output Voltage (V) 2.560 2.540 2.520 2.500 2.480 2.460 2.440 3.380 3.360 Output Voltage (V) 2.580 3.400 2.420 2.400 ACT8600-024 ACT8600-023 2.600 3.340 3.320 3.300 3.280 3.260 3.240 3.220 0 50 100 150 200 250 300 3.200 350 50 0 100 Output Current (mA) REG7 Output Voltage vs. Output Current 1.900 1.300 1.240 300 350 1.220 1.200 1.180 1.160 1.140 REG8 Output Voltage vs. Output Current 1.860 1.840 1.820 1.800 1.780 1.760 1.740 1.720 1.120 0 50 100 150 200 1.700 250 0 50 100 150 200 250 Output Current (mA) Output Current (mA) REG5/6 Dropout Voltage vs. Output Current 300 250 200 150 100 50 300 Dropout Voltage (mV) 350 REG7/8 Dropout Voltage vs. Output Current ACT8600-028 ACT8600-027 400 Dropout Voltage (mV) 250 1.880 Output Voltage (V) Output Voltage (V) 1.260 0 200 ACT8600-026 ACT8600-025 1.280 1.100 150 Output Current (mA) 250 200 150 100 50 0 0 50 100 150 200 250 300 350 0 Output Current (mA) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. 50 100 150 200 250 Output Current (mA) - 27 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) REG5 Output Voltage vs. Temperature 2.550 2.500 2.450 2.400 -40 3.400 Output Voltage (V) VOUT = 2.5V ACT8600-030 Output Voltage (V) REG6 Output Voltage vs. Temperature ACT8600-029 2.600 VOUT = 3.3V 3.350 3.300 3.250 3.200 -20 0 20 40 60 80 100 120 -40 -20 0 Temperature (C) REG7 Output Voltage vs. Temperature 80 100 120 1.200 1.150 VOUT = 1.8V Output Voltage (V) 1.250 1.900 ACT8600-032 ACT8600-031 Output Voltage (V) 60 REG8 Output Voltage vs. Temperature VOUT = 1.2V 1.100 1.850 1.800 1.750 1.700 -40 -20 0 20 40 60 80 100 120 -40 -20 0 Temperature (C) 40 60 80 100 120 REG10 Output Voltage vs. Temperature 3.300 3.250 VOUT = 1.2V Output Voltage (V) 3.350 1.300 ACT8600-034 ACT8600-033 VOUT = 3.3V 3.200 -40 20 Temperature (C) REG9 Output Voltage vs. Temperature Output Voltage (V) 40 Temperature (C) 1.300 3.400 20 1.250 1.200 1.150 1.100 -20 0 20 40 60 80 100 120 -40 Temperature (C) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -20 0 20 40 60 80 100 120 Temperature (C) - 28 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) REG10 Output Voltage vs. Output Current ACT8600-035 Output Voltage (V) 1.215 1.205 1.195 1.185 1.175 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Output Current (mA) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 29 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) VSYS Voltage vs. VSYS Current (USB Mode) 4.6 CHGLEV/DBQ3ILIM[ ] = 1 4.5 4.4 CHGLEV = 0 CHGLEV/DBQ3ILIM = 0 4.3 5.0 VSYS Voltage (V) VSYS Voltage (V) 4.7 VSYS Voltage vs. CHGIN Voltage 5.2 ACT8600-037 ACT8600-036 4.8 4.8 VVSYS = 4.6V 4.6 4.4 4.2 4.2 4.0 4.1 200 0 400 600 800 2 0 1000 Charge Current vs. Battery Voltage 8 10 Charge Current vs. Battery Voltage 800 600 400 200 450 CHGLEV = 1 RISET = 2.4k DBILIMQ3[ ] = 0 USB Mode 400 Charge Current (mA) VCHGIN = 5V RISET = 2.4k AC Mode ACT8600-039 ACT8600-038 Charge Current (mA) 6 CHGIN Voltage (V) ISYS Current (mA) 1000 4 350 300 250 200 150 100 50 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0 0.5 1.0 3.0 3.5 4.0 4.5 50 40 30 CHGLEV = 0 RISET = 1.8k USB Mode CHGLEV = 1 900 DBILIMQ3[ ] = 1 RISET = 2.4k Charge Current (mA) 60 1000 ACT8600-041 ACT8600-040 70 Charge Current (mA) 2.5 Charge Current vs. Battery Voltage Charge Current vs. Battery Voltage 80 10 2.0 Battery Voltage (V) Battery Voltage (V) 20 1.5 800 USB Mode 700 600 500 400 300 200 100 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0 Battery Voltage (V) Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Battery Voltage (V) - 30 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) DCCC and Battery Supplement Modes ACT8600-042 CH1 CH2 CH3 CH4 CH5 VBAT = 3.6V IVSYS = 1.5A VCHGIN = 5V-1A CH6 CH1: VVSYS, 2V/div CH2: VCHGIN, 5V/div CH3: VBAT, 2V/div CH4: ICHGIN, 500mA/div CH5: IBAT, 1A/div CH6: IVSYS, 1A/div TIME: 40ms/div Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 31 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) CHGIN Applied CHGIN Removed ACT8600-044 ACT8600-043 CH1 CH1 CH2 CH2 CH3 CH3 CH4 CH4 VBAT = 3.6V IVSYS = 200mA VBAT = 3.6V IVSYS = 0mA CH1: VCHGIN, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 1V/div CH4: IBAT, 500mA/div TIME: 20ms/div CH1: VCHGIN, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 1V/div CH4: IBAT, 500mA/div TIME: 20ms/div VBUS Applied VBUS Removed ACT8600-046 ACT8600-045 CH1 CH1 CH2 CH2 CH3 CH3 CH4 VBAT = 3.6V IVSYS = 200mA 450mA USB VBAT = 3.6V IVSYS = 200mA 450mA USB CH4 CH1: VVBUS, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 1V/div CH4: IBAT, 500mA/div TIME: 20ms/div CH1: VVBUS, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 1V/div CH4: IBAT, 200mA/div TIME: 20ms/div VBUS Applied VBUS Removed ACT8600-048 ACT8600-047 CH1 CH1 CH2 CH2 CH3 CH3 CH4 VBAT = 3.6V IVSYS = 40mA 75mA USB VBAT = 3.6V IVSYS = 40mA 75mA USB CH4 CH1: VVBUS, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 2V/div CH4: IBAT, 50mA/div TIME: 20ms/div Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. CH1: VVBUS, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 2V/div CH4: IBAT, 50mA/div TIME: 20ms/div - 32 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TYPICAL PERFORMANCE CHARACTERISTICS CONT'D (TA = 25C, unless otherwise specified.) VBUS Applied VBUS Removed ACT8600-050 ACT8600-049 CH1 CH1 CH2 CH2 CH3 CH3 CH4 VBAT = 3.6V IVSYS = 200mA DBILIMQ3[ ]= 1 CHGLEV = 1 CH4 VBAT = 3.6V IVSYS = 200mA DBILIMQ3[ ] = 1 CHGLEV = 1 CH1: VVBUS, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 2V/div CH4: IBAT, 500mA/div TIME: 20ms/div Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. CH1: VVBUS, 5V/div CH2: VVSYS, 2V/div CH3: VBAT, 2V/div CH4: IBAT, 500mA/div TIME: 20ms/div - 33 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 SYSTEM CONTROL INFORMATION Interfacing with the Ingenic JZ4770 Processor The ACT8600 is optimized for use in applications using the Ingenic JZ4770 processor, supporting both the power domains as well as the signal interface for these processors. The following paragraphs describe how to design ACT8600 with JZ4770 processor. While the ACT8600 supports many possible configurations for powering these processors, one of the most common configurations is detailed in this datasheet. Control Signals Master Enable (PWREN) Input PWREN is a logic input which turns ON REG1, REG2, REG3, and REG5 when asserted. All regulators except the RTC LDOs (REG9) will be turned OFF when PWREN is de-asserted. nRSTO Output The power on reset pin, nRSTO is an open-drain output. Connect a 10k or greater pull-up resistor from nRSTO to REG9. - The nRSTO output pin is asserted low only when the REG9 voltage is below 1.67V - If REG1 is above its power-OK threshold when the reset timer (40ms) expires, nRSTO is deasserted. nIRQ Output nIRQ is an open-drain output that asserts low any time an interrupt is generated. Connect a 10k or greater pull-up resistor from nIRQ to the I/O rail. nIRQ is typically used to drive the interrupt input of the system processor. Many of the ACT8600's functions support interruptgeneration as a result of various conditions. These are typically masked by default, but may be unmasked via the I2C interface. For more information about the available fault conditions, refer to the appropriate sections of this datasheet. Power Control Sequences When the VVSYS rises above the UVLO, or REG9 rises above 93% of its default value (in the case when a charged backup battery is installed), nRSTO is asserted low immediately and REG9 is enabled. REG1, REG2 and REG3 will be enabled when PWREN = 1 and VVSYS is above 3.45V. When REG1 reaches 93% of the default value, REG5 will be enabled, and nRSTO is de-asserted after a 40ms delay. Once the system is turned ON, the processor may shut down the system by pulling down PWREN. In that case, all of the regulators, except REG9 will be turned off (REG9 is the always ON LDO). When PWREN is pulled high again, OUT1/2/3/5 will be turned ON again but nRSTO remains de-asserted as long as REG9 is within regulation. Table 1: ACT8600QJ162-T and Ingenic JZ4770 Power Domains POWER DOMAIN ACT8600 CHANNEL TYPE DEFAULT VOLTAGE CURRENT CAPABILITY CPU Core REG1 Step-Down DC/DC 1.2V 1200mA IO / AVDAUD REG2 Step-Down DC/DC 3.3V 1200mA MEM REG3 Step-Down DC/DC 1.8V 950mA USB OTG REG4 Step-Up DC/DC 5V 600mA AVD REG5 LDO 2.5V 350mA General Purpose REG6 LDO 3.3V 350mA General Purpose REG7 LDO 1.2V 250mA General Purpose REG8 LDO 1.8V 250mA VDDRTC REG9 LDO 3.3V 5mA VDDRTC12 REG10 LDO 1.2V 5mA Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 34 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Table 2: ACT8600QJ601-T and Bloomberg Power Domains ACT8600 CHANNEL TYPE DEFAULT VOLTAGE CURRENT CAPABILITY REG1 Step-Down DC/DC 3.3V 1200mA REG2 Step-Down DC/DC 1.8V 1200mA REG3 Step-Down DC/DC 1.2V 950mA REG4 Step-Up DC/DC 5V 600mA REG5 LDO 2.5V 350mA REG6 LDO 3.3V 350mA REG7 LDO 1.2V 250mA REG8 LDO 1.8V 250mA REG9 LDO 3.3V 5mA REG10 LDO 1.2V 5mA Figure 2: ACT8600QJ162-T Power Sequence Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 35 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Figure 3: ACT8600QJ601-T Power Sequence Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 36 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 FUNCTIONAL DESCRIPTION I2C Interface Table 3: 2 The ACT8600 features an I C interface that allows advanced programming capability to enhance overall system performance. To ensure compatibility with a wide range of system processors, the I2C interface supports clock speeds of up to 400kHz ("Fast-Mode" operation) and uses standard I2C commands. I2C write-byte commands are used to program the ACT8600, and I2C read-byte commands are used to read the ACT8600's internal registers. The ACT8600 always operates as a slave device, and is addressed using a 7-bit slave address followed by an eighth bit, which indicates whether the transaction is a readoperation or a write-operation, [1011010x]. SDA is a bi-directional data line and SCL is a clock input. The master device initiates a transaction by issuing a START condition, defined by SDA transitioning from high to low while SCL is high. Data is transferred in 8-bit packets, beginning with the MSB, and is clocked-in on the rising edge of SCL. Each packet of data is followed by an "Acknowledge" (ACK) bit, used to confirm that the data was transmitted successfully. For more information regarding the I2C 2-wire serial interface, go to the NXP website: http://www.nxp.com. Interrupt Service Routine The ACT8600 has number of interrupt trigger sources to simplify the customer interrupt service routine, the ACT8600 features a Interrupt Service Routine function as follow: Once the nIRQ asserts low, the CPU can read the 0xC1 byte to determine the source that asserts the interrupt. The CPU then reads the interrupt -related bit(s) within the source located at generated the interrupt then serve it. If there are multiple interrupts and pending, the cycle repeats until all the interrupts are served. The Global Interrupt Address is shown as Table 2. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. Global Interrupt Address 0xC1 Value Interrupt Source Interrupt Address 0x00 SYSTEM 0x00 0x10 REG1 0x12 0x20 REG2 0x22 0x30 REG3 0x32 0x50 REG5 0x51 0x60 REG6 0x61 0x70 REG7 0x71 0x80 REG8 0x81 0xA0 APCH 0xA8, 0xA9 0xB0 OTG 0xB0, 0xB2 Housekeeping Functions Programmable System Voltage Monitor The ACT8600 features a programmable systemvoltage monitor, which monitors the voltage at VSYS and compares it to a programmable threshold voltage. The VSYSMON comparator is designed to be immune to VSYS noise resulting from switching, load transients, etc. The VSYSMON comparator is disable by default; to enable it, set the SYSLEV[3:0] register to one of the value in Table 3. Note that there is a 200mV hysteresis between the rising and falling threshold for the comparator. The VSYSDAT [-] bit reflects the output of the VSYSMON comparator. The value of VSYSDAT[ ] is 1 when VVSYS < SYSLEV; value is 0 otherwise. The VSYSMON comparator can generate an interrupt when VVSYS is lower than SYSLEV[ ] voltage. The interrupt is masked by default by can be unmasked by setting nSYSLEVMSK[ ] = 1. - 37 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 FUNCTIONAL DESCRIPTION CONT'D Table 4: SYSLEV Falling Threshold SYSLEV[3:0] SYSLEV Falling Threshold 1000 1001 1010 1011 1100 1101 1110 1111 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 Thermal Protection The ACT8600 integrates thermal shutdown protection circuitry to prevent damage resulting from excessive thermal stress, as may be encountered under fault conditions. Thermal Interrupt If the thermal interrupt is unmasked (by setting nTMSK[ ] to 1), ACT8600 can generate an interrupt when the die temperature reaches 120C (typ). Thermal Protection If the ACT8600 die temperature exceeds 160C, the thermal protection circuitry disables all regulators and prevents the regulators from being enabled until the IC temperature drops by 20C (typ). Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 38 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 STEP-DOWN DC/DC REGULATORS General Description REG1, REG2 and REG3 are fixed-frequency, current-mode, synchronous PWM step-down converters that achieves peak efficiencies of up to 97%. These regulators operate with a fixed frequency of 2.22MHz, minimizing noise in sensitive applications and allowing the use of small external components. Additionally, REG1, REG2 and REG3 are available with a variety of standard and custom output voltages, and may be software-controlled via the I2C interface for systems that require advanced power management functions. Output Current Capability REG1, REG2, and REG3 are capable of supplying 1200mA, 1200mA and 950mA output current, respectively. 100% Duty Cycle Operation REG1, REG2 and REG3 are capable of operating at up to 100% duty cycle. During 100% duty cycle operation, the high-side power MOSFETs are held on continuously, providing a direct connection from the input to the output (through the inductor), ensuring the lowest possible dropout voltage in battery powered applications. Operating Mode By default, REG1, REG2, and REG3 operate in fixed-frequency PWM mode at medium to heavy loads, then transition to a proprietary power-saving mode at light loads in order to save power. and optimize transient performance over their full operating range. No compensation design is required; simply follow a few simple guide lines described below when choosing external components. Input Capacitor Selection The input capacitor reduces peak currents and noise induced upon the voltage source. A 4.7F ceramic capacitor is recommended for each regulator in most applications. Output Capacitor Selection REG1, REG2 and REG3 were designed to take advantage of the benefits of ceramic capacitors, namely small size and very-low ESR. REG1, REG2 and REG3 are designed to operate with 22uF output capacitor over most of their output voltage ranges, although more capacitance may be desired depending on the duty cycle and load step requirements. Inductor Selection REG1, REG2, and REG3 utilize current-mode control and a proprietary internal compensation scheme to simultaneously simplify external component selection and optimize transient performance over their full operating range. These devices were optimized for operation with 3.3H inductors, although inductors in the 2.2H to 4.7H range can be used. Configuration Options Output Voltage Programming Synchronous Rectification REG1, REG2, and REG3 each feature integrated synchronous rectifiers, maximizing efficiency and minimizing the total solution size and cost by eliminating the need for external rectifiers. Soft-Start REG1, REG2 and REG3 include internal 500 us softstart ramps which limit the rate of change of the output voltage, minimizing input inrush current and ensuring that the output powers up in a monotonic manner that is independent of loading on the outputs. This circuitry is effective any time the regulator is enabled, as well as after responding to a short-circuit or other fault condition. By default, REG1, REG2 and REG3 power up and regulate to their default output voltages. Once the system is enabled, the output voltages may be modified through either the I2C interface by writing to the VSET[ ] register. Using I2C, the output voltage may be programmed to any voltage as shown in Table 4. Interrupts REG1, REG2 and REG3 may optionally interrupt the processor if their output voltages fall out regulation. Enable interrupts by setting a regulator's nFLTMSK[ ] bit. Compensation REG1, REG2 and REG3 utilize current-mode control and a proprietary internal compensation scheme to simultaneously simplify external component selection Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 39 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 CONFIGURABLE STEP-UP DC/DC General Description Configuration Options The step-up DC/DC is a highly efficient step-up DC/DC converter that employs a fixed frequency, current-mode, PWM architecture. This regulator is optimized for 5V applications as well as white-LED bias applications consisting of up to ten whiteLEDs. 5V Applications The boost converter is configured by default to provide a fixed 5V output voltage, without requiring external feedback resistors. Contact the factory for other voltage options. In order to provide improved operation under very low duty-cycle conditions, such as when operating from a fully-charged Li+ cell to 5V, the boost converter may optionally be configured to operate at half of the frequency of the buck regulators. Compensation and Stability The boost regulator utilizes current-mode control and an internal compensation network to optimize transient performance, ease compensation, and improve stability over a wide range of operating conditions. Output Voltage Programming By default, the boost regulator powers up and regulates to its default output voltages. Once the system is enabled, the output voltages may be modified through either the I2C interface by writing to the VSET[ ] register. Using I2C, the output voltage may be programmed to any voltage as shown in Table 6. Enabling the Boost Regulator The boost regulator feature independent enable/disable control via the I2C serial interface. Independently enable or disable the boost by writing to the ON[ ] bit for REG4. Power-OK The boost regulator features a power-OK status bit (OK[ ]) that can be read by the system microprocessor via the I2C interface. If an output voltage is lower than the power-OK threshold, typically 6% below the programmed regulation voltage, this bit clears to 0. Inductor Selection REG4 is optimized for operation with inductors in the 4.7uH to 10uH range, although larger inductor values of up to 22uH can be used to achieve the highest possible efficiency. Input and Output Capacitor Selection For 5V operation, a 10uF ceramic capacitor should be connected to the input and output of OUT4 respectively. A larger output capacitor may be used to minimize output voltage ripple if needed. Rectifier Selection The boost regulator requires a Schottky diode to rectify the inductor current. Select a low forward voltage drop Schottky diode with a forward current rating that is sufficient to support the maximum switch current of 900mA (typ) and a sufficient peak repetitive reverse voltage (VRRM) to support the output voltage. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 40 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 LOW-DROPOUT LINEAR REGULATORS General Description Output Capacitor Selection The REG5, REG6, REG7 and REG8 are low-noise, low-dropout linear regulators (LDOs) that are optimized for low noise and high-PSRR operation. The REG5, REG6, REG7 and REG8 require just a small 2.2uF ceramic capacitor for stability. For best performance, each output capacitor should be connected directly between each output and ground, with a short and direct connection. High quality ceramic capacitors such as X7R and X5R dielectric types are strongly recommended. LDO Output Voltage Programming The REG5, REG6, REG7 and REG8 feature independently-programmable output voltages that are set via the I2C serial interface, increasing flexibility while reducing total solution and size and cost. Set the output voltage by writing to the LDO's VSET[ ] register. Each LDO's VSET[ ] register provides the following output voltage options as shown in Table 5. In order to ensure safe operation under over-load conditions, each LDO features current-limit circuitry with current fold-back. The current-limit the current that can be drawn from the output, providing protection in overload conditions. For additional protection under extreme over current conditions, current-fold-back protection reduces the currentlimit by approximately 50% under extreme overload conditions. Backup Battery Charger REG9 is always-on and REG10 is low-dropout linear regulators (LDO). They both feature lowquiescent supply current, and current-limit protection, and are ideally suited for always-on power supply applications, such as for a real-time clock, or as a backup-battery or super-cap charger. All LDOs feature independent enable/disable control via the I2C serial interface. Independently enable or disable each output by writing to the appropriate ON[ ] bit. REG9 features internal circuitry that limits the reverse supply current to less than 1uA when the input voltage falls below the output voltage, as can be encountered in backup-battery charging applications. REG9 internal circuitry monitors the input and the output, and disconnects internal circuitry and parasitic diodes when the input voltage falls below the output voltage, greatly minimizing backup battery discharge. The always-ON LDOs also feature a constant current-limit, which protects the IC under output short-circuit conditions as well as provides a constant charge current. When operating as a backup battery charger. Power-OK Figure 4: The REG5, REG6, REG7 and REG8 feature a power-OK status bit (OK[ ]) that can be read by the system microprocessor via the I2C interface. If an output voltage is lower than the power-OK threshold, typically 11% below the programmed regulation voltage, this bit clears to 0. Always ON LDO Enabling and Disabling the LDOs Interrupts Each LDO may optionally interrupt the processor if its output voltage falls out of regulation. Enable interrupts by setting a regulator's nFLTMSK[ ] bit. Optional LDO Output Discharge The REG5, REG6, REG7 and REG8 feature optional output voltage discharge. When this feature is enabled, the LDO output is discharged to ground through a 1.5k resistance when the LDO is shutdown. This feature may be enabled or disabled via the I2C interface by writing to an LDO's DIS[ ] bit. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 41 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Table 5: VSET[ ] Output Voltage Setting of DC/DC Step-Down Regulators (REG1--REG3) REGx/VSET[2:0] REGx/VSET[5:3] 000 001 010 011 100 101 110 111 000 0.600 0.800 1.000 1.200 1.600 2.000 2.400 3.200 001 0.625 0.825 1.025 1.250 1.650 2.050 2.500 3.300 010 0.650 0.850 1.050 1.300 1.700 2.100 2.600 3.400 011 0.675 0.875 1.075 1.350 1.750 2.150 2.700 3.500 100 0.700 0.900 1.100 1.400 1.800 2.200 2.800 3.600 101 0.725 0.925 1.125 1.450 1.850 2.250 2.900 3.700 110 0.750 0.950 1.150 1.500 1.900 2.300 3.000 3.800 111 0.775 0.975 1.175 1.550 1.950 2.350 3.100 3.900 Table 6: VSET[ ] Output Voltage Setting of Low-Noise LDO Regulators (REG5--REG8) REGx/VSET[2:0] REGx/VSET[5:3] 000 001 010 011 100 101 110 111 000 0.600 0.800 1.000 1.200 1.600 2.000 2.400 3.200 001 0.625 0.825 1.025 1.250 1.650 2.050 2.500 3.300 010 0.650 0.850 1.050 1.300 1.700 2.100 2.600 3.400 011 0.675 0.875 1.075 1.350 1.750 2.150 2.700 3.500 100 0.700 0.900 1.100 1.400 1.800 2.200 2.800 3.600 101 0.725 0.925 1.125 1.450 1.850 2.250 2.900 3.700 110 0.750 0.950 1.150 1.500 1.900 2.300 3.000 3.800 111 0.775 0.975 1.175 1.550 1.950 2.350 3.100 3.900 Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 42 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Table 7: VSET[ ] Output Voltage Setting of DC/DC Step-Up Regulator REGx/VSET[4:0] REGx/VSET[7:5] 000 001 010 011 100 101 110 111 00000 3.000 3.000 3.000 6.200 9.400 12.600 19.000 31.800 00001 3.000 3.000 3.100 6.300 9.500 12.800 19.400 32.200 00010 3.000 3.000 3.200 6.400 9.600 13.000 19.800 32.600 00011 3.000 3.000 3.300 6.500 9.700 13.200 20.200 33.000 00100 3.000 3.000 3.400 6.600 9.800 13.400 20.600 33.400 00101 3.000 3.000 3.500 6.700 9.900 13.600 21.000 33.800 00110 3.000 3.000 3.600 6.800 10.000 13.800 21.400 34.200 00111 3.000 3.000 3.700 6.900 10.100 14.000 21.800 34.600 01000 3.000 3.000 3.800 7.000 10.200 14.200 22.200 35.000 01001 3.000 3.000 3.900 7.100 10.300 14.400 22.600 35.400 01010 3.000 3.000 4.000 7.200 10.400 14.600 23.000 35.800 01011 3.000 3.000 4.100 7.300 10.500 14.800 23.400 36.200 01100 3.000 3.000 4.200 7.400 10.600 15.000 23.800 36.600 01101 3.000 3.000 4.300 7.500 10.700 15.200 24.200 37.000 01110 3.000 3.000 4.400 7.600 10.800 15.400 24.600 37.400 01111 3.000 3.000 4.500 7.700 10.900 15.600 25.000 37.800 10000 3.000 3.000 4.600 7.800 11.000 15.800 25.400 38.200 10001 3.000 3.000 4.700 7.900 11.100 16.000 25.800 38.600 10010 3.000 3.000 4.800 8.000 11.200 16.200 26.200 39.000 10011 3.000 3.000 4.900 8.100 11.300 16.400 26.600 39.400 10100 3.000 3.000 5.000 8.200 11.400 16.600 27.000 39.800 10101 3.000 3.000 5.100 8.300 11.500 16.800 27.400 40.200 10110 3.000 3.000 5.200 8.400 11.600 17.000 27.800 40.600 10111 3.000 3.000 5.300 8.500 11.700 17.200 28.200 41.000 11000 3.000 3.000 5.400 8.600 11.800 17.400 28.600 41.400 11001 3.000 3.000 5.500 8.700 11.900 17.600 29.000 41.400 11010 3.000 3.000 5.600 8.800 12.000 17.800 29.400 41.400 11011 3.000 3.000 5.700 8.900 12.100 18.000 29.800 41.400 11100 3.000 3.000 5.800 9.000 12.200 18.200 30.200 41.400 11101 3.000 3.000 5.900 9.100 12.300 18.400 30.600 41.400 11110 3.000 3.000 6.000 9.200 12.400 18.600 31.000 41.400 11111 3.000 3.000 6.100 9.300 12.500 18.800 31.400 41.400 Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 43 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 USB OTG General Description Figure 5: When the system is acting as a USB OTG Adevice, the OTG subsystem can provide power to VBUS from either 5VIN via Q1 or CHGIN via Q2 as shown in the figure. If VBUS is connected to a charger (either a charging port, a USB host or Hub, or a PC), the battery will be charged via Q3 (see Single-Cell Li+ ActivePathTM Charger section). USB OTG subsystem 5VIN to VBUS (Q1) Q1 is a PMOS switch that can provide 5V supply to VBUS from 5VIN pin which is typically connected to the output of the Boost regulator (REG4). Q1 is controlled by ONQ1[ ]. The current for Q1 is limited at 700mA to protect the Boost regulator or external source connected at 5VIN from overloaded. If the current across Q1 is over the limitation for more than 256ms, the switch is turned off automatically. A 0 to 1 transition on ONQ1[ ] is needed to turned Q1 on again after a over-current condition. Q1 may optionally interrupt the processor when there is a over-current condition. Enable interrupts by setting the nFLTMSKQ1[ ] bit. CHGIN to VBUS (Q2) Q2 is a NMOS switch that can power VBUS from CHGIN. If Q2 is controlled by ONQ2[ ] and can only be turned on if Q1 is turned off. The current for Q2 is limited at 700mA prevent the external source connected at CHGIN from overloaded. If the current across Q2 is over the limitation for more than 256ms, the switch is turned off automatically. A 0 to 1 transition on ONQ2[ ] is needed to turned Q2 on again after a over-current condition. Q2 also features an over voltage protection function. When the voltage at CHGIN is above 6V, Q2 is turned off automatically to avoid an overvoltage condition at VBUS. Q2 may optionally interrupt the processor when there is a over-current condition. Enable interrupts by setting the nFLTMSKQ2[ ] bit. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 44 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Single-Cell Li+ ActivePathTM Charger General Description The charger features an advanced battery charger that incorporates the patent-pending ActivePathTM architecture for system power selection. This combination of circuits provides a complete, advanced battery-management system that automatically selects the best available input supply, manages charge current to ensure system power availability, and provides a complete, highaccuracy (0.5%), thermally regulated, full-featured single-cell linear Li+ Charger that can withstand input voltages of up to 12V at CHGIN. voltage range. Independent of the OVPSET[ ] setting, the charge cycle is not allowed to continue until the input voltage falls back into the charger's normal operating voltage range (i.e. below 6.0V). In an input over-voltage condition this circuit limits VVSYS to 4.6V, protecting any circuitry connected to VVSYS from the over-voltage condition, which may exceed this circuitry's voltage capability. This circuit is capable of withstanding input voltages of up to 12V. Table 8: Input Over-Voltage Protection Setting ActivePathTM Architecture The ActivePathTM architecture important functions: performs three 1) System Configuration Optimization OVPSET[0] OVP THRESHOLD 0 6.6V 1 7.0V 2) Input Protection 3) Battery-Management System Configuration Optimization The ActivePath circuitry monitors the state of the input supply, the battery, and the system, and automatically reconfigures itself to optimize the power system. If a valid input supply at either CHGIN or VBUS is present, ActivePath powers the system from the input while charging the battery in parallel. Of the two possible charging sources, CHGIN is the preferred one over VBUS to allow the battery to charge as quickly as possible, while supplying the system. If a valid input supply is not present, ActivePath powers the system from the battery. If the input is present and the system current requirement exceeds the capability of the input supply, ActivePath allows system power to be drawn from both the battery and the input supply. Note that the battery will not be charged from VBUS pin when VBUS is supplied by the 5VIN pin (through Q1). Input Protection for CHGIN Input Over-Voltage Protection The ActivePathTM circuitry features input overvoltage protection circuitry for CHGIN. This circuitry disables charging when the input voltage exceeds the voltage set by OVPSET[ ], but stands off the input voltage in order to protect the system. Note that the adjustable OVP threshold is intended to provide the charge cycle with adjustable immunity against upward voltage transients on the input, and is not intended to allow continuous charging with input voltages above the charger's normal operating Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. Input Supply Overload Protection TM The ActivePath circuitry monitors and limits the total current drawn from the input supply to a value set by the CHGIN/VBUS configuration and CHGLEV inputs, as well as the resistor connected to ISET. When charging from VBUS pin, the input current is limited to either 75mA, when CHGLEV is driven to a logic-low, or 450mA, when CHGLEV is driven to a logic-high. When charging from CHGIN, the input current is limited to 2.25A, typically. Input Under Voltage Lockout If the input voltage applied to CHGIN falls below 3.5V (typ), an input under-voltage condition is detected and the charger is disabled. Once an input under-voltage condition is detected, a new charge cycle will initiate when the input exceeds the undervoltage threshold by at least 500mV. Battery Management The ACT8600 features a full-featured, intelligent charger for Lithium-based cells, and was designed specifically to provide a complete charging solution with minimum system design effort. The core of the charger is a CC/CV (ConstantCurrent/Constant-Voltage), linear-mode charge controller. This controller incorporates current and voltage sense circuitry, an internal 70m power MOSFET, thermal-regulation circuitry, a fullfeatured state-machine that implements charge control and safety features, and circuitry that eliminates the reverse blocking diode required by conventional charger designs. - 45 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 The charge termination voltage is highly accurate (0.5%), and features a selection of charge safety timeout periods that protect the system from operation with damaged cells. Other features include pin-programmable fast-charge current and one current-limited nSTAT output that can directly drive LED indicator or provide a logic-level status signal to the host microprocessor. Dynamic Charge Current Control (DCCC) The ACT8600's ActivePathTM charger features dynamic charge current control (DCCC) circuitry, which acts to ensure that the system remains powered while operating within the maximum output capability of the power adapter. The DCCC circuitry continuously monitors VSYS, and if the voltage at VSYS drops by more than 200mV, the DCCC circuitry automatically reduces charge current in order to prevent VSYS from continuing to drop. Charge Current Programming The ACT8600's ActivePathTM charger features a flexible charge current-programming scheme that combines the convenience of internal charge current programming with the flexibility of resistor based charge current programming. Current limits and charge current programming are managed as a function of the CHGIN/VBUS configuration and CHGLEV pins, in combination with RISET, the resistance connected to the ISET pin. When charging from CHGIN, the charger operates in "AC-mode' with a charge current programmed by RISET, and charge current is given by: RISET (k) = 2336 x (1V/ICHG(mA)) - 0.205 When charging from VBUS, the charger operates in "USB-Mode", with a maximum charge current defined by the CHGLEV input, and Q3DBILIM[ ] settings as summarized in Table 8. Charger Input Interrupts In order to ease input supply detection and eliminate the size and cost of external detection circuitry, the charger has the ability to generate interrupts based upon the status of the input supply. This function is capable of generating an interrupt when the input is connected, disconnected, or both. CHGIN Detection An interrupt is generated any time the input supply is connected to CHGIN when INSTAT[ ] bit is set to 1 and the INCON[-] bit is set to 1, and an interrupt is generated any time the input supply is disconnected when INSTAT[ ] bit is set to 1 and the INDIS[ ] bit is set to 1. The status of the input may be read at any time by reading the INDAT[-] bit, where a value of 1 indicates that the valid input (V CHGIN UVLO<VCHGIN<VOVP) is present, and a value of 0 indicates that a valid input is not present. Reading the INSTAT[-] bit indicates when the input has generated an interrupt; this bit will normally return a value of 0, but will return value of 1 when an input interrupt has been generated then the interrupt is automatically cleared to 0 upon reading. VBUS Detection When a valid input supply is connected to VBUS, an interrupt is generated when INVBUSR[ ] and nVBUSMSK[] is set. Similarly, an interrupt is generated when the input supply is disconnected from VBUS when INVBUSF[ ] and nVBUSMSK[ ] is set. The value of VBUSSTAT[ ], which indicate the status of VBUS interrupts, is 1 if an interrupt is generated by either INVBUSR[ ] or INVBUSF[ ]. VBUSDAT[ ] provides the real time status of VBUS and its value is 1 when a valid charging source is present at VBUS. Note that the actual charge current may be limited to a current lower than the programmed fast charge current due to the ACT8600's internal thermal regulation loop. See the Thermal Regulation section for more information. Table 9: Charge Current Programming CHARGING SOURCE CHGLEV Q3DBILIM CHARGE CURRENT (mA) PRECONDITION CHARGE CURRENT (mA) VBUS 0 - Min (75mA, ICHG ) Min (75mA, 10% x ICHG ) VBUS 1 0 Min (450mA, ICHG ) 10% x ICHG VBUS 1 1 Min (900mA, ICHG ) 10% x ICHG CHGIN - - ICHG 10% x ICHG Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 46 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Charge-Control State Machine PRECONDITION State A new charging cycle begins with the PRECONDITION state, and operation continues in this state until VBAT exceeds the Precondition Threshold Voltage. When operating in PRECONDITION state, the cell is charged at 10% of the programmed maximum fast-charge constant current, ICHG. Once VBAT reaches the Precondition Threshold Voltage, the state machine jumps to the FASTCHARGE state. If VBAT does not reach the Precondition Threshold Voltage before the Precondition Timeout period expires, then the state machine jumps to the TIMEOUT-FAULT state in order to prevent charging a damaged cell. See the Charge Safety Timers section for more information. FAST-CHARGE State In the FAST-CHARGE state, the charger operates in constant-current (CC) mode and regulates the charge current to the current set by RISET . Charging continues in CC mode until VBAT reaches the charge termination voltage (VTERM), at which point the statemachine jumps to the TOP-OFF state. If VBAT does not reach VTERM before the total time out period expires then the state-machine will jump to the "EOC" state and will re-initiate a new charge cycle after 32ms "relax". See the Current Limits and Charge Current Programming sections for more information about setting the maximum charge current. TOP-OFF State In the TOP-OFF state, the cell charges in constantvoltage (CV) mode. In CV mode operation, the charger regulates its output voltage to the 4.20V charge termination voltage, and the charge current is naturally reduced as the cell approaches full charge. Charging continues until the charge current drops to END-OF-CHARGE current threshold, at which point the state machine jumps to the ENDOF-CHARGE (EOC) state. presents a high-impedance to the battery, minimizing battery current drain and allowing the cell to "relax". The charger continues to monitor the cell voltage, and re-initiates a charging sequence if the cell voltage drops to 205mV (typ) below the charge termination voltage. SUSPEND State The state-machine jumps to the SUSPEND state any time the battery is removed, and any time the input voltage falls below either the UVLO threshold or exceeds the OVP threshold. Once none of these conditions are present, a new charge cycle initiates. A charging cycle may also be suspended manually by setting the SUSPEND[ ] bit. In this case, initiate a new charging sequence by clearing SUSPEND[ ] to 0. State Machine Status The charger features the ability to generate interrupts when the charger state machine transitions. Set CHGEOCIN[ ] bit to 1 and CHGSTAT[ ] bit to 1 to generate an interruption when the charger state machine goes into the ENDOF-CHARGE (EOC) state. Set CHGEOCOUT[ ] bit to 1 and CHGSTAT[ ] bit to 1 to generate an interruption when the charger state machine exists the EOC state. The status of the charge state machine may be read at any time by reading the CHGDAT[ ] bit, where a value of 1 indicates State Machine is in EOC state, and value is 0 when State Machine is in other states. Reading the CHGSTAT[-] bit indicates when a state machine transition has generated an interrupt; this bit will normally return a value of 0, but will return value of 1 when a state transition occurs then automatically clear to 0 upon reading. For additional information about the charge cycle, CSTATE[0:1] may be read at any time via I2C to determine the current charging state. If the state-machine does not jump out of the TOPOFF state before the Total-Charge Timeout period expires, the state machine jumps to the EOC state and will re-initiate a new charge cycle if VBAT falls below termination voltage 205mV (typ). For more information about the charge safety timers, see the Charging Safety Times section. END-OF-CHARGE (EOC) State In the END-OF-CHARGE (EOC) state, the charger Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 47 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Figure 6: Typical Li+ charge profile and ACT8600 charge states A: PRECONDITION State B: FAST-CHARGE State C: TOP-OFF State D: END-OF-CHARGE State Figure 7: Charger State Diagram TEMP NOT OK ANY STATE (VCHGIN < VBAT) OR (VCHGIN < VCHGIN UVLO) OR (VCHGIN > VOVP) OR (SUSCHG[ ] = 1) SUSPEND TEMP-FAULT (VCHGIN > VBAT) AND (VCHGIN > VCHGIN UVLO) AND (VCHGIN < VOVP) AND (SUSCHG[ ] = 0) TEMP OK PRECONDITION TIME-OUT-FAULT PRECONDITION Time-out Total Time-out (VBAT > 2.85V) AND (TQUAL = 32ms) FAST-CHARGE (VBAT = VTERM ) AND (TQUAL = 32ms) (VBAT < VTERM - 205mV ) AND (TQUAL = 32ms) TOP-OFF (IBAT < 10% x ICHG) OR (Total Time-out) AND (TQUAL = 32ms) END-OF-CHARGE Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 48 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 Table 12: Table 10: Charging Status Indication CSTATE[0] CSTATE[1] Total Safety Timer Setting STATE MACHINE STATUS 1 1 PRECONDITION 1 0 FAST-CHARGE/TOP-OFF 0 1 END-OF-CHARGE 0 0 SUSPEND/DISABLE/FAULT TOTTIMO[1] TOTTIMO[0] TOTAL TIMEOUT PERIOD 0 0 4 hrs 0 1 5 hrs 1 0 6.5 hrs 1 1 Disabled Thermal Regulation Charge Status Indicator The charger features an internal thermal regulation loop that monitors die temperature and reduces charging current as needed to ensure that the die temperature does not exceed the thermal regulation threshold of 100C. This feature protects against excessive junction temperature and makes the device more accommodating to aggressive thermal designs. Note, however, that attention to good thermal designs is required to achieve the fastest possible charge time by maximizing charge current. The charger provides a charge-status indicator output, nSTAT. nSTAT is an open-drain output which sinks current when the charger is in an active-charging state, and is high-Z otherwise. nSTAT features an internal 8mA current limit, and is capable of directly driving a LED without the need of a current-limiting resistor or other external circuitry. To drive an LED, simply connect the LED between nSTAT pin and an appropriate supply, such as VSYS. For a logic-level charge status indication, simply connect a resistor from nSTAT to an appropriate voltage supply. Charge Safety Timers The charger features programmable charge safety timers which help ensure a safe charge by detecting potentially damaged cells. These timers are programmable via the PRETIMO[1:0] and TOTTIMO[1:0] bits, as shown in Table 10 and Table 11. Note that in order to account for reduced charge current resulting from DCCC operation, the charge timeout periods are extended proportionally to the reduction in charge current. As a result, the actual safety period may exceed the nominal timer period. The status of the charge timers may be read at any time by reading the TIMRDAT[ ] bit, where a value of 0 indicates that neither charge timer has expired, and a value of 1 indicates that one of the charge timers has expired. Table 11: PRECONDITION Safety Timer Setting Table 13: Charging Status Indication STATE nSTAT PRECONDITION Active FAST-CHARGE Active TOP-OFF Active END-OF-CHARGE High-Z SUSPEND High-Z TEMPERATURE FAULT High-Z TIME-OUT FAULT High-Z Reverse-Current Protection PRETIMO[1] PRETIMO[0] PRECONDITION TIMEOUT PERIOD 0 0 40 mins 0 1 60 mins 1 0 80 mins The charger includes internal reverse-current protection circuitry that eliminates the need for blocking diodes, reducing solution size and cost as well as dropout voltage relative to conventional battery chargers. When the voltage at CHGIN falls below VBAT, the charger automatically reconfigures its power switch to minimize current drawn from the battery. 1 1 Disabled Battery Temperature Monitoring In a typical application, the TH pin is connected to the battery pack's thermistor input, as shown in Figure 7. The charger continuously monitors the Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 49 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 temperature of the battery pack by injecting a 100A (typ) current into the thermistor (via the TH pin) and sensing the voltage at TH. The voltage at TH is continuously monitored, and charging is suspended if the voltage at TH exceeds either of the internal VTHH and VTHL thresholds of 0.5V and 2.5V, respectively. The net resistance (from TH to GA) required to cross the thresholds are given by: 100A x RNOM x kHOT = 0.5V RNOM x kHOT 5k 100A x RNOM x kCOLD = 2.5V RNOM x kCOLD 25k where RNOM is the nominal thermistor resistance at room temperature, and kHOT and kCOLD represent the ratios of the thermistor's resistance at the desired hot and cold thresholds, respectively, to the resistance at 25C. The status of the battery temperature pin may be read at any time by reading the TEMPDAT[-] bit, where a value of 1 indicates that battery temperature is within the valid range, and a value of 0 indicates that battery temperature has exceeded either of the thresholds. Figure 8: Simple Configuration Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 50 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TQFN55-40 PACKAGE OUTLINE AND DIMENSIONS SYMBOL A A1 DIMENSION IN MILLIMETERS DIMENSION IN INCHES MIN MAX MIN MAX 0.700 0.800 0.028 0.031 0.200 REF 0.008 REF A2 0.000 0.050 0.000 0.002 b 0.150 0.250 0.006 0.010 D 4.900 5.100 0.193 0.201 E 4.900 5.100 0.193 0.201 D2 3.450 3.750 0.136 0.148 E2 3.450 3.750 0.136 0.148 e L R 0.400 BSC 0.300 0.500 0.300 0.016 BSC 0.012 0.020 0.012 Active-Semi, Inc. reserves the right to modify the circuitry or specifications without notice. Users should evaluate each product to make sure that it is suitable for their applications. Active-Semi products are not intended or authorized for use as critical components in life-support devices or systems. Active-Semi, Inc. does not assume any liability arising out of the use of any product or circuit described in this datasheet, nor does it convey any patent license. Active-Semi and its logo are trademarks of Active-Semi, Inc. For more information on this and other products, contact sales@active-semi.com or visit http://www.active-semi.com. is a registered trademark of Active-Semi. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 51 - www.active-semi.com Copyright (c) 2014 Active-Semi, Inc. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Active-Semi: ACT8600QJ162-T ACT8600QJ601-T