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| Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER General Description 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. The AP4313 is available in SOT-23-6 package. AP4313 Features * * * * Constant Voltage and Constant Current Control Precision Internal Voltage Reference Few External Components Easy Compensation Applications * * Adapters Battery Chargers SOT-23-6 Figure 1. Package Type of AP4313 Nov. 2005 Rev. 1. 0 1 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Pin Configuration K Package (SOT-23-6) AP4313 VCTRL GND VOUT 1 2 3 6 5 4 VCC VSENSE ICTRL Figure 2. Pin Configuration of AP4313 (Top View) Pin Description Pin Number 1 2 3 4 5 6 Pin Name VCTRL GND VOUT ICTRL VSENSE VCC Input pin of the voltage control loop Ground Output pin. Sinking current only Input pin of the current control loop Input pin of the current control loop Power supply Function Nov. 2005 Rev. 1. 0 2 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Functional Block Diagram VCC 6 AP4313 1.210V 3 VOUT 1 VCTRL 200mV 2 GND 4 5 ICTRL VSENSE Figure 3. Functional Block Diagram of AP4313 Ordering Information AP4313 Circuit Type E1: Lead Free Blank: Tin Lead TR: Tape and Reel Package K: SOT-23-6 Package SOT-23-6 Temperature Range 0 to 70oC Part Number Tin Lead AP4313KTR Lead Free AP4313KTR-E1 Tin Lead K6G Marking ID Packing Type Lead Free E6G 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 3 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Absolute Maximum Ratings (Note 1) Parameter Power Supply Voltage Input Voltage Junction Temperature Storage Temperature Lead Temperature (Soldering, 5sec) Package Thermal Resistance (Junction to Case) Symbol VCC VIN TJ TSTG TLEAD JC Value 20 -0.3 to VCC 150 -65 to 150 260 92 o AP4313 Unit V V oC o C oC 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 VCC TA Min 2.5 0 Max 18 70 Unit V oC Nov. 2005 Rev. 1. 0 4 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Electrical Characteristics (VCC=5V, TA=25oC, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit AP4313 TOTAL CURRENT CONSUMPTION Total Supply Current Not Including the Output Sinking Current VOLTAGE CONTROL LOOP Transconduction Gain (VCTRL). Sink Current Only Voltage Control Loop Reference Input Bias Current (VCTRL) CURRENT CONTROL LOOP Transconduction Gain (ICTRL). Current Control Loop Reference Current Out of Pin ICTRL at -200mV OUTPUT STAGE Low Output Voltage at 10mA Sinking Current Output Short Circuit Current. Output to VCC. Sink Current Only VOL IOS 200 27 50 mV mA Gmi VSENSE IIBI IOUT=2.5mA 1.5 196 7 200 25 204 mA/mV mV A Gmv VREF IIBV 1 1.198 3.5 1.21 50 1.222 mA/mV V nA ICC 0.6 1.2 mA Nov. 2005 Rev. 1. 0 5 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Typical Performance Characteristics AP4313 1.225 202 1.220 201 VCC=12V VCC=5V VCC=2.5V 200 1.215 1.210 VSENSE (V) VREF (V) 199 198 1.205 197 1.200 196 1.195 -40 -20 0 20 40 60 o 80 100 120 195 -40 -20 0 20 40 60 o 80 100 120 Ambient Temperature ( C) Ambient Temperature ( C) Figure 4. VREF vs. Ambient Temperature Figure 5. VSENSE vs. Ambient Temperature 80 45 60 VCC=12V VCC=5V VCC=2.5V 40 VCC=12V VCC=5V VCC=2.5V 40 35 IIBV (nA) 20 IIBI (A) -20 0 20 40 60 o 30 0 25 -20 20 -40 -40 80 100 120 15 -40 -20 0 20 40 60 o 80 100 120 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 6 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Typical Performance Characteristics (Continued) AP4313 60 1.6 1.4 1.2 50 VCC=12V VCC=5V VCC=2.5V 40 1.0 IOS (mA) 30 ICC (mA) VCC=12V VCC=5V VCC=2.5V -20 0 20 40 60 o 0.8 0.6 0.4 0.2 20 10 0 -40 80 100 120 0.0 -40 -20 0 20 40 60 o 80 100 120 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 7 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Typical Application AP4313 VOUT To primary AP4313 VCC R2 R4 VOUT 1.210V R3 C2 470K 22pF C1 2.2nF Load VCTRL 200mV GND C3 2.2nF R5 22K R1 ICTRL VSENSE R6 500 GND R7 Figure 10. Typical Application of AP4313 Nov. 2005 Rev. 1. 0 8 BCD Semiconductor Manufacturing Limited Preliminary Datasheet CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Mechanical Dimensions SOT-23-6 Unit: mm(inch) AP4313 2.820(0.111) 3.020(0.119) 0.300(0.012) 0.400(0.016) 0.300(0.012) 0.600(0.024) 0 8 0.200(0.008) 2.650(0.104) 2.950(0.116) 0.700(0.028)REF 0.950(0.037)TYP 1.800(0.071) 2.000(0.079) 0.000(0.000) 0.100(0.004) 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 9 1.500(0.059) 1.700(0.067) BCD Semiconductor Manufacturing Limited 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 - 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 BCD Semiconductor Manufacturing Limited - 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 |
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