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APW7236 Datasheet(PDF) 7 Page - Anpec Electronics Coropration |
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APW7236 Datasheet(HTML) 7 Page - Anpec Electronics Coropration |
7 / 17 page Copyright © ANPEC Electronics Corp. Rev. A.4 - Sep., 2012 APW7236 www.anpec.com.tw 7 Block Diagram UVLO Oscillator Control Logic Σ VIN EN FB GND LX OVP Thermal Shutdown VREF EAMP COMP ICMP Soft-start Pin Description PIN NO. TDFN2x2-8 TSOT-23-6A NAME FUNCTION 1, 5 2 GND Power and signal ground pin. 2 6 VIN Main Supply Pin. Must be closel y decoupled to GND with a 4.7 µF or greater ceramic capacitor. 3 5 OVP Converter Output and Over-Voltage Protection Input Pin. 4 4 EN Enab le Control Input. Forcing this pin above 1.0V enables the device, or forcing this pin below 0.4V to shut it down. In shutdown, all functions are disabled to decrease the supply current below 1 µA. Do not leave this pin floating. 6 3 FB Feedback Pin. Connect this pin to cathode of the lowest LED and current-sense resistor (R1). Calculate resistor value according to R1=VREF/ILED . 7 - NC No Internal Connection. 8 1 LX Switch pin. Connect this pin t o inductor/diode here. Exposed Pad - GND Connecting this pad to GND. |
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Similar Description - APW7236 |
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