Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER General Description Features The AP4313 is a highly integrated solution for a constant voltage/constant current mode SMPS application. · · · · The AP4313 contains one 1.21V voltage reference with ±1% accuracy, one current sensing circuit and two operational amplifiers. Combining the voltage reference with one operational amplifier makes AP4313 an ideal voltage controller for use in adapters and battery chargers. The other low voltage reference combined with the other operational amplifier makes it an ideal current limiter for output low side current sensing. AP4313 Constant Voltage and Constant Current Control Precision Internal Voltage Reference Few External Components Easy Compensation Applications · · Adapters Battery Chargers The AP4313 is available in SOT-23-6 package. SOT-23-6 Figure 1. Package Type of AP4313 Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 1 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Pin Configuration K Package (SOT-23-6) VCTRL 1 6 VCC GND 2 5 VSENSE VOUT 3 4 ICTRL Figure 2. Pin Configuration of AP4313 (Top View) Pin Description Pin Number Pin Name Function 1 VCTRL 2 GND Ground 3 VOUT Output pin. Sinking current only 4 ICTRL Input pin of the current control loop 5 VSENSE Input pin of the current control loop 6 VCC Input pin of the voltage control loop Power supply Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 2 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Functional Block Diagram VCC 6 1.210V 3 1 VOUT VCTRL 200mV 2 GND 5 4 ICTRL VSENSE Figure 3. Functional Block Diagram of AP4313 Ordering Information AP4313 Package SOT-23-6 - Circuit Type E1: Lead Free Blank: Tin Lead Package K: SOT-23-6 TR: Tape and Reel Part Number Marking ID Temperature Range Tin Lead Lead Free Tin Lead Lead Free 0 to 70oC AP4313KTR AP4313KTR-E1 K6G E6G Packing Type Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 3 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Power Supply Voltage VCC 20 V Input Voltage VIN -0.3 to VCC V Junction Temperature TJ 150 oC Storage Temperature TSTG -65 to 150 TLEAD 260 θJC 92 Lead Temperature (Soldering, 5sec) Package Thermal Resistance (Junction to Case) o C oC o C/W Note 1: 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 Parameter Power Supply Voltage Operating Temperature Range Symbol Min Max Unit VCC 2.5 18 V TA 0 70 oC Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 4 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Electrical Characteristics (VCC=5V, TA=25oC, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit 0.6 1.2 mA TOTAL CURRENT CONSUMPTION Total Supply Current Not Including the Output Sinking Current ICC VOLTAGE CONTROL LOOP Transconduction Gain (VCTRL). Sink Current Only Gmv 1 3.5 Voltage Control Loop Reference VREF 1.198 1.21 Input Bias Current (VCTRL) IIBV mA/mV 1.222 V 50 nA 1.5 7 mA/mV 196 200 CURRENT CONTROL LOOP Transconduction Gain (ICTRL). Current Control Loop Reference Gmi VSENSE IOUT=2.5mA 204 mV IIBI 25 µA Low Output Voltage at 10mA Sinking Current VOL 200 mV Output Short Circuit Current. Output to VCC. Sink Current Only IOS 27 Current Out of Pin ICTRL at -200mV OUTPUT STAGE Nov. 2005 Rev. 1. 0 50 mA BCD Semiconductor Manufacturing Limited 5 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Typical Performance Characteristics 202 1.225 201 1.220 VCC=12V VCC=5V 200 VCC=2.5V VSENSE (V) VREF (V) 1.215 1.210 199 198 1.205 197 1.200 1.195 -40 196 -20 0 20 40 60 80 100 195 -40 120 -20 0 60 80 100 120 Figure 5. VSENSE vs. Ambient Temperature 80 45 VCC=12V 60 VCC=5V VCC=2.5V 20 30 0 25 -20 20 -20 0 20 40 60 80 100 VCC=2.5V 35 IIBI (µA) 40 VCC=12V 40 VCC=5V IIBV (nA) 40 Ambient Temperature ( C) Figure 4. VREF vs. Ambient Temperature -40 -40 20 o o Ambient Temperature ( C) 15 -40 120 -20 0 20 40 60 80 100 120 o o Ambient Temperature ( C) Ambient Temperature ( C) Figure 6. VCTRL Pin Input Bias Current vs. Ambient Temperature Figure 7. ICTRL Pin Input Bias Current vs. Ambient Temperature Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 6 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Typical Performance Characteristics (Continued) 60 1.6 1.4 50 VCC=12V VCC=5V 1.2 VCC=2.5V 40 ICC (mA) IOS (mA) 1.0 30 20 VCC=12V VCC=5V 0.8 0.6 0.4 VCC=2.5V 10 0.2 0 -40 -20 0 20 40 60 80 100 0.0 -40 120 o -20 0 20 40 60 80 100 120 o Ambient Temperature ( C) Ambient Temperature ( C) Figure 8. Output Short Circuit Current vs. Ambient Temperature Figure 9. Supply Current vs. Ambient Temperature Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 7 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Typical Application VOUT To primary R2 AP4313 VCC R4 1.210V R3 VOUT C2 470K 22pF VCTRL C1 2.2nF Load C3 2.2nF 200mV GND ICTRL R5 22K VSENSE R1 R6 500 GND R7 Figure 10. Typical Application of AP4313 Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 8 Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4313 Mechanical Dimensions SOT-23-6 Unit: mm(inch) 0° 2.820(0.111) 8° 3.020(0.119) 0.300(0.012) 0.400(0.016) 0.200(0.008) 1.500(0.059) 1.700(0.067) 2.650(0.104) 2.950(0.116) 0.300(0.012) 0.600(0.024) 0.700(0.028)REF 0.950(0.037)TYP 0.000(0.000) 0.100(0.004) 1.800(0.071) 2.000(0.079) 0.100(0.004) 0.200(0.008) 1.050(0.041) 1.050(0.041) 1.150(0.045) 1.250(0.049) Nov. 2005 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 9 http://www.bcdsemi.com IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. MAIN SITE BCD Semiconductor Manufacturing Limited BCD Semiconductor Manufacturing Limited - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 - IC Design Group Advanced Analog Circuits (Shanghai) Corporation 8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office 27B, Tower C, 2070, Middle Shen Nan Road, Shenzhen 518031, China Tel: +86-755-8368 3987, Fax: +86-755-8368 3166 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808, Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corporation 3170 De La Cruz Blvd., Suite 105, Santa Clara, CA 95054-2411, U.S.A Tel: +1-408-988 6388, Fax: +1-408-988 6386