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AP4313KTR-G1 Diodes Incorporated
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A Product Line of Diodes Incorporated AP4313 CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Description Pin Assignments The AP4313 is a highly integrated solution for a constant voltage/constant current mode SMPS application. (Top View) Pin 1 Mark 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 V V CTRL 1 6 CC chargers. The other low voltage reference combined with the other operational amplifier makes it an ideal current limiter for output low V GND 2 5 SENSE side current sensing. V OUT 3 4 I CTRL The AP4313 is available in SOT26 package. Features SOT26 Constant Voltage and Constant Current Control Precision Internal Voltage Reference Few External Components Applications Easy Compensation Low Supply Current: 0.5mA Adapters o Operating Temperature Range: -40 to +105 C Battery Chargers Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See A Product Line of Diodes Incorporated AP4313 Typical Applications Circuit (Cont.) VOUT+ To primary R2 I AP4313 L VCC R4 C1 1.210V R3 V OUT + + VCTRL Load C3 GND R5 I V CTRL SENSE R1 R6 500 V - OUT Rss R1 R2 V SENSE V V ( I R ) ( I R ) (V) C u r r e n tL i m it (A) OUT REF L SS L SS R1 R SS Typical Application 2 V + OUT To primary R2 I AP4313 L V CC R4 C1 1.210V R3 V OUT + + VCTRL Load C3 GND R5 I V CTRL SENSE R1 R6 500 V - OUT Rss R1 R2 V V SENSE REF V V (I R ) CurrentLimit (V) (A) OUT REF L SS R1 V V R SENSE REF SS Typical Application 3 2 of 9 AP4313 October 2014 Diodes Incorporated www.diodes.com Document number: DS37565 Rev.2 - 2