TS51231 High Efficiency Transmitter Driver for Wireless Power Systems TRIUNE PRODUCTS Features Description * * * * * The TS51231 is a transmitter driver and output stage for wireless charging applications. The TS51231 can support systems up to 5W output and proprietary applications. Supports portable wireless charging applications Wireless power systems up to 5W output Integrated gate driver and output stage Single pin control for switching the output stage Low external component count Switching of the TS51231 is controlled by the wireless power transmitter controller (TS80002 or similar). Applications Specification * * Low-power wireless chargers for: Smart Watches Wearables Toys Portable Lighting Medical Devices 16 pin 3x3 QFN Typical Application Circuit DC Supply TS80002 + TS51231 TS51221 Transmitter Receiver Load Application Processor TS51231 Final Datasheet November 14, 2016 Rev 1.1 www.semtech.com 1 of 10 Semtech Proprietary & Confidential Pin-out (Top view) PGND PGND VIN VIN EN SW SDA SW SCL BOOT nFLT NC GND VDD HSON NC Pin-out Configuration Pin # Pin Symbol Function Description 1 EN Enable Enable 2 SDA I2C Serial Data I2C Serial Data 3 SCL I2C Serial Clock I2C Serial Clock 4 nFLT Status Fault Status 5 NC Reserved Reserved 6 HSON Driver Driver high-side control 7 VDD Supply Device Supply 8 GND GND Device GND 9 NC Reserved Reserved 10 BOOT Bootstrap Pin Connected through 22nF capacitor to SW pin 11 SW Switching Node Connected to transmitter coil 12 SW Switching Node Connected to transmitter coil 13 PGND Power GND Power GND 14 PGND Power GND Power GND 15 VIN Power Supply Power Supply 16 VIN Power Supply Power Supply 17 PAD Power PAD Power GND TS51231 Final Datasheet November 14, 2016 Rev 1.1 www.semtech.com 2 of 10 Semtech Proprietary & Confidential Functional Block Diagram EN nFLT VIN IC Interface Over & Under Voltage Protection MONITOR & CONTROL SCL SDA VIN CIN BOOT Gate Drive Gate Drive Control Input Buffer HS ON CBOOT Lcoil SW Gate Drive COUT PGND VIN VDD Regulator VDD TS51231 Final Datasheet November 14, 2016 Rev 1.1 CVDD GND www.semtech.com 3 of 10 Semtech Proprietary & Confidential Absolute Maximum Ratings Over operating free-air temperature range unless otherwise noted(1, 2) Parameter Value Unit VDD, EN, NFLT, SCL, SDA, HSON -0.3 to 5.5 V VIN -0.3 to 20 V BOOT -0.3 to 25 V -1 to 20 V Electrostatic Discharge - Human Body Model +/-2k V Electrostatic Discharge - Charge Device Model +/-500 V SW Lead Temperature (soldering, 10 seconds) (1) (2) 260 C O Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values are with respect to network ground terminal. Thermal Characteristics Symbol Parameter Value Units JA Thermal Resistance Junction to Air (Note 1) 33 - 36 C/W JC Thermal Resistance Junction to Case (Note 1) 1.2 - 3.9 C/W TSTG Storage Temperature Range -65 to 150 C Maximum Junction Temperature 150 C Operating Junction Temperature Range -40 to 125 C TJ MAX TJ Note 1: Assumes 16LD 3x3 QFN with hi-K JEDEC board and 13.5 inch2 of 1 oz Cu and 4 thermal vias connected to PAD Recommended Operating Conditions Symbol Parameter Min VCC Input Operating Voltage 4.2 LOUT Transmitter Coil 6.0 H COUT Output Filter Capacitor 100 nF CIN Input Bypass Capacitor 100 nF CVDD Internal Bypass Capacitor 100 nF CBOOT Bootstrap Capacitor 22 nF TS51231 Final Datasheet November 14, 2016 Rev 1.1 www.semtech.com Typ Max Unit 12 16.5 V 4 of 10 Semtech Proprietary & Confidential Electrical Characteristics (T=25OC unless otherwise specified) Electrical Characteristics, TJ = -40C to 125C (unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units ISW = -1A, TJ=25C 100 m ISW = 1A, TJ=25C 100 m Output Stage High Side Switch On Resistance Low Side Switch On Resistance RDSON Max Output Current IOUT Over Current Detect IOCD 2.0 HS switch current A 2.5 A VDD LDO Output LDO Output Voltage VLDO LDO Output Current ILDO Drop Out Voltage LDODO 4.75 Vin=5V, Iout=50mA 5.0 5.25 V 50 mA 400 mV Functional Description Switching of the TS51231 transmitter driver is controlled by the wireless transmitter controller via the HSON pin. When the HSON pin is high, the high-side FET is switched on and the low-side FET is switched off. When the HSON pin is low, the high-side FET is switched off and the low-side FET is switched on. TS51231 Final Datasheet November 14, 2016 Rev 1.1 www.semtech.com 5 of 10 Semtech Proprietary & Confidential Application Schematic 1 2 VCC5V C3 1uF 6.3V C4 10nF 10V C5 1uF 6.3V 6 5 4 A GND GND GND 2 3 12 1 15 RESET DEBUG U1 VDD LDO VSS GPIO1 GPIO2 GPIO3 PWM1_L PWM1_H PWM2_L PWM2_H V_AC I_DC VREF V_DC GPIO4 ALERT NRST DEBUG SCL SDA 3 10 13 11 14 C7 100nF 10V 16 17 19 20 GND 18 7 DONE 9 8 SMB_SCL SMB_SDA 7 8 1 6 4 3 2 4 VCC5V U2 VDD VIN VIN GND BOOT 15 16 10 11 12 SW SW EN HSON nFLT SCL SDA C18 22nF 10V C2 100nF 10V GND 5 9 13 14 17 NC NC PGND PGND PAD GND C8 100nF 10V D1 GND 330K R8 22K AC2 A TX Coil C19 NC VCC5V R9 TP1 1K C9 1nF 100V GND AC1 GND R7 B AC1 AC2 C6 4.7nF 50V TS51231 TS80002 C16 4.7nF 50V RESET TP2 DEBUG TP3 TP4 GND Coil Feedback GND DONE C11 1nF 10V C 1K R12 10K SMB_SDA SMB_SCL C10 R11 4.7nF 100V TP5 J3 VCC5V R10 10K 1 2 3 4 Header 4 C GND VCC5V GND 1 B RX -> TX Communication GND 2 J2 1 2 3 4 5 J1 VBUS DD+ x SHLD GND 9 8 7 6 C17 22uF 6.3V VCC5V C1 22uF 6.3V C12 100nF 10V C21 GND R20 1K GND 5V IN LED1 GREEN LED 0805 22uF 6.3V D D GND Title Wireless Power TX (Low Power) 5V 0.5W/1W Size: Letter Number: Figure 1: TS80002 Application Schematic Date: 11/11/2016 1 TS51231 Final Datasheet November 14, 2016 2 Rev 1.1 3 www.semtech.com Revision:2.0 Time: 10:11:48 AM Sheet 1 of 1 200 Flynn Road Camarillo, CA 93012 www.semtech.com Semtech Proprietary and Confidential Information. Do not distribute or copy. 4 6 of 10 Semtech Proprietary & Confidential Package Mechanical Drawings (all dimensions in mm) Units Millimeters Dimensions Limits NOM MAX Number of Pins N 16 Pitch e 0.50 BSC Overall Height A 0.80 0.90 1.00 Standoff A1 0.00 0.02 0.05 Contact Thickness A3 0.20 REF Overall Length D 3.00 BSC Exposed Pad Width E2 Overall Width E Exposed Pad Length TS51231 Final Datasheet November 14, 2016 MIN 1.55 1.70 1.80 3.00 BSC D2 1.55 1.70 1.80 Contact Width b 0.20 0.25 0.30 Contact Length L 0.20 0.30 0.40 Contact-to-Exposed Pad K 0.20 - - Rev 1.1 www.semtech.com 7 of 10 Semtech Proprietary & Confidential Recommended PCB Land Pattern Silk Screen RECOMMENDED LAND PATTERN Units Dimensions Limits Contact Pitch Millimeters MIN E NOM MAX 0.50 BSC Optional Center Pad Width W2 - - 1.70 Optional Center Pad Length T2 - - 1.70 Contact Pad Spacing C1 - 3.00 - Contact Pad Spacing C2 - 3.00 - Contact Pad Width (X16) X1 - - 0.35 Contact Pad Length (X16) Y1 - - 0.65 Distance Between Pads G 0.15 - - Notes: Dimensions and tolerances per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact values shown without tolerances. REF: Reference Dimension, usually without tolerance, for information only TS51231 Final Datasheet November 14, 2016 Rev 1.1 www.semtech.com 8 of 10 Semtech Proprietary & Confidential Ordering Information Part Number Description TS51231-MQFNR Transmitter Driver RoHS and Reach Compliance Triune Systems is fully committed to environmental quality. All Triune Systems materials and suppliers are fully compliant with RoHS (European Union Directive 2011/65/EU), REACH SVHC Chemical Restrictions (EC 1907/2006), IPC-1752 Level 3 materials declarations, and their subsequent amendments. Triune Systems maintains certified laboratory reports for all product materials, from all suppliers, which show full compliance to restrictions on the following: * * * * * * * * * * * * Cadmium (Cd) Chlorofluorocarbons (CFCs) Chlorinate Hydrocarbons (CHCs) Halons (Halogen free) Hexavalent Chromium (CrVI) Hydrobromofluorocarbons (HBFCs) Hydrochlorofluorocarbons (HCFCs) Lead (Pb) Mercury (Hg) Perfluorocarbons (PFCs) Polybrominated biphenyls (PBB) Polybrominated Diphenyl Ethers (PBDEs) TS51231 Final Datasheet November 14, 2016 Rev 1.1 www.semtech.com 9 of 10 Semtech Proprietary & Confidential Important Notice Information relating to this product and the application or design described herein is believed to be reliable, however such information is provided as a guide only and Semtech assumes no liability for any errors in this document, or for the application or design described herein. Semtech reserves the right to make changes to the product or this document at any time without notice. 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(c) Semtech 2016 Contact Information Semtech Corporation Triune Products 1101 Resource Dr. Suite 121, Plano, Texas 75074 Phone: (972) 231-1606 For general inquiries, sales and technical supports: www.semtech.com/contact TS51231 Final Datasheet November 14, 2016 Rev 1.1 10 of 10 Semtech Proprietary & Confidential Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Semtech: TS51231-QFNR