A Product Line of Diodes Incorporated AP4320 CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Description Pin Assignments The AP4320 is a highly integrated solution for a constant voltage/constant current mode SMPS application. (Top View) The AP4320 contains one 2.5V voltage reference and two operational amplifiers. The 2.5V voltage reference, combined with one operational amplifier, makes of an ideal voltage controller for use in adapters and battery chargers. The low voltage reference, combined with another operational amplifier, makes of an ideal current limiter for output low side current sensing. Pin 1 Mark VSENSE 1 6 VCC GND 2 5 VOUT VCTRL 3 4 ICTRL The AP4320 is available in SOT26 package. Features SOT26 (K6 Package) Constant Voltage and Constant Current Control Low External Component Count Easy Compensation Low Supply Current: 190A Precision Internal Voltage Reference: 2.5V Operating Supply Voltage: 3.5V to 36V Low Current Sense Threshold: 30mV/50mV Totally Lead-free & Fully RoHS Compliant (Note 1 & 2) Halogen and Antimony Free. "Green" Device (Note 3) Notes: Applications AC/DC Adapters Battery Chargers LED Drivers 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated's definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green" products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Typical Applications Circuit VOUT+ To primary R2 AP4320 6 VCC 2.5V R4 R3 VOUT 5 OP1 IL C1 + + VCTRL 3 GND 2 Load C3 OP2 R5 ICTRL VSENSE R1 1 4 C2 (Optional) R6 VOUT- R SS VOUT VREF R1 R 2 R1 CurrentLimit VSENSE RSS Typical Application 1 AP4320 Document number: DS36786 Rev. 2 - 2 1 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Typical Applications Circuit (Cont.) VOUT+ To primary AP4320 2.5V R2 IL 6 VCC R4 OP1 + C1 R3 VOUT 5 + VCTRL 3 Load C3 OP2 GND ICTRL 2 R5 VSENSE R1 1 4 C2 (Optional) R6 VOUTR SS VOUT [VREF ( I L RSS )] R1 R 2 ( I L RSS ) R1 CurrentLimit VSENSE RSS Typical Application 2 VOUT+ To primary AP4320 2.5V R2 IL 6 VCC R4 R3 VOUT 5 OP1 C1 + + VCTRL 3 Load C3 OP2 GND 2 R5 I CTRL V SENSE R1 1 4 C2 (Optional) R6 VOUTR SS VOUT VREF R1 R 2 ( I L RSS ) R1 CurrentLimit VSENSE VREF VSENSE VREF RSS Typical Application 3 AP4320 Document number: DS36786 Rev. 2 - 2 2 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Pin Descriptions Pin Number Pin Name Function 1 VSENSE Input pin of the current control loop 2 GND Ground 3 VCTRL Input pin of the voltage control loop 4 ICTRL Input pin of the current control loop 5 VOUT Output pin. Sinking current only 6 VCC Power Supply Functional Block Diagram VCC 2.5V 6 5 OP1 3 VOUT V CTRL OP2 2 4 1 I CTRL AP4320 Document number: DS36786 Rev. 2 - 2 GND V SENSE 3 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Absolute Maximum Ratings (Note 4) Symbol Parameter Rating Unit VCC Power Supply Voltage -0.3 to 38 V VOUT Input Voltage (VOUT Pin) -0.3 to VCC V VICTRL Input Voltage (ICTRL Pin) -0.3 to 18 V VSENSE Input Voltage (VSENSE Pin) -0.3 to 18 V VVCTRL Input Voltage (VCTRL Pin) -0.3 to 18 V TJ Junction Temperature +150 C TSTG Storage Temperature -55 to +150 C TLEAD Lead Temperature (Soldering, 5sec) +260 C 250 C/W JA Thermal Resistance (Junction to Ambient) Note 4: Stresses greater than 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 Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Symbol VCC Parameter Min Max Unit Power Supply Voltage 3.5 36 V AP4320 Document number: DS36786 Rev. 2 - 2 4 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Electrical Characteristics (@VCC=20V, -25C <TA<+125C, unless otherwise specified.) Symbol Parameters Conditions Min Typ Max Unit VICTRL=VSENSE=0V, VOUT=Open - 190 - A - 1 3.5 - mA/mV TA=+25oC 2.488 2.50 2.512 - 2.48 - 2.52 - - 25 - nA - 1.5 7 - mA/mV TA = +25C 29 30 31 - 28 30 32 48.5 50 51.5 - 46 50 54 AP4320A VICTRL=-30mV - 16 - AP4320B VICTRL=-50mV - 16 - - - 30 100 mV VOUT=4V - 30 - mA TOTAL CURRENT CONSUMPTION ICC Total Supply Current Not Including the Output Sinking Current VOLTAGE CONTROL LOOP Gmv Transconduction Gain (VCTRL). Sink Current Only VREF Voltage Control Loop Reference IIBV Input Bias Current (VCTRL) V CURRENT CONTROL LOOP Gmi Transconduction Gain (ICTRL). Sink Current Only AP4320A VSENSE mV Current Control Loop Reference TA = +25C AP4320B IIBI Current Out of Pin ICTRL at VSENSE A OUTPUT STAGE VOL IOS Low Output Voltage at 2mA Sinking Current Output Short Circuit Current. Sink Current Only AP4320 Document number: DS36786 Rev. 2 - 2 5 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Performance Characteristics VREF vs. Ambient Temperature ICC vs. Ambient Temperature 2.520 240 2.515 230 220 2.510 210 ICC (A) VREF (V) 2.505 2.500 2.495 200 190 180 2.490 170 2.485 2.480 -40 160 -20 0 20 40 60 80 100 120 150 -40 140 -20 0 20 o 40 60 80 100 120 140 o Ambient Temperature ( C) Ambient Temperature ( C) VSENSE vs. Ambient Temperature VSENSE vs. Ambient Temperature 52.0 31.0 30.8 AP4320A AP4320B 51.5 30.6 51.0 30.2 VSENSE (mV) VSENSE (mV) 30.4 30.0 29.8 50.5 50.0 49.5 29.6 49.0 29.4 48.5 29.2 29.0 -40 -20 0 20 40 60 80 100 120 140 48.0 -40 -20 0 20 40 60 80 100 120 140 o Ambient Temperature ( C) o Ambient Temperature ( C) IIBV vs. Ambient Temperature IIBI vs. Ambient Temperature 50 22 45 20 40 18 30 IIBI (A) IIBV (nA) 35 25 20 15 16 14 12 10 10 5 0 8 -40 -20 0 20 40 60 80 100 120 140 o Ambient Temperature ( C) AP4320 Document number: DS36786 Rev. 2 - 2 -40 -20 0 20 40 60 80 100 120 140 o Ambient Temperature ( C) 6 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Performance Characteristics (Cont.) IOS_OP2 vs. Ambient Temperature 50 50 45 45 40 40 IOS_OP2 (mA) IOS_OP1 (mA) IOS_OP1 vs. Ambient Temperature 35 35 30 30 25 25 20 -40 -20 0 20 40 60 80 100 120 20 -40 140 -20 0 6.0 10 5.5 9 5.0 8 4.5 4.0 3.5 3 60 80 120 140 5 2.5 40 100 6 4 20 80 7 3.0 0 60 Gmi vs. Ambient Temperature Gmi (mA/mV) Gmv (mA/mV) Gmv vs. Ambient Temperature -20 40 Ambient Temperature ( C) Ambient Temperature ( C) 2.0 -40 20 o o 100 120 140 2 -40 -20 0 20 40 60 80 100 120 140 o o Ambient Temperature ( C) Ambient Temperature ( C) VOL vs. Ambient Temperature 36 34 32 VOL (mV) 30 28 26 24 22 20 18 -40 -20 0 20 40 60 80 100 120 140 o Ambient Temperature ( C) AP4320 Document number: DS36786 Rev. 2 - 2 7 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Ordering Information AP4320 X XX XX - XX Version Product Name A: 30mV VSENSE B: 50mV VSENSE Package K6 : SOT26 Packing TR : Tape & Reel RoHS/Green G1 : Green Diodes IC's Pb-free products with "G1" suffix in the part number, are RoHS compliant and green. Package Version Part Number Marking ID 30mV VSENSE AP4320AK6TR-G1 GJZ 50mV VSENSE AP4320BK6TR-G1 GKW SOT26 Packing 3000/Tape and Reel Marking Information : Logo XXX: Marking ID (See details from ordering information) AP4320 Document number: DS36786 Rev. 2 - 2 8 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: SOT26 0 2.820(0.111) 8 3.100(0.122) 0.300(0.012) 0.500(0.020) 5 4 2 3 0.300(0.012) 0.600(0.024) 1.500(0.059) 1.700(0.067) 2.650(0.104) 3.000(0.118) 6 0.200(0.008) Pin 1 Mark 1 0.700(0.028)REF 0.950(0.037)TYP 0.000(0.000) 0.150(0.006) 1.800(0.071) 2.000(0.079) 0.100(0.004) 0.200(0.008) 0.900(0.035) 1.450(0.057) MAX 1.300(0.051) AP4320 Document number: DS36786 Rev. 2 - 2 9 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 Suggested Pad Layout (1) Package Type: SOT26 E E Y G Z X Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch) Value 3.600/0.142 1.600/0.063 0.700/0.028 1.000/0.039 0.950/0.037 AP4320 Document number: DS36786 Rev. 2 - 2 10 of 11 www.diodes.com December 2013 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4320 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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