Built-in OVP White LED Step-Up Converter

文件：260.18 Kbytes 页数：13 Pages

AIC

沛亨半导体

Built-in OVP White LED Step-Up Converter

AIC3643 is a current-mode pulse-widthmodulation(PWM), step-up DC/DC converter designed to drive white LEDs with a constant current to provide backlight in hand-held devices. Series connection of LEDs provides identical LED currents resulting in uniform brightness. This configuration eliminates the n • Built-In Open Circuit Protection\n• Over Voltage Protection\n• Efficiency Up to 83% at VIN=4.2V, 3LEDs, ILED=20mA\n• 1.2MHz Fixed Switching Frequency\n• Drives Up to 5LEDs in series\n• 2.5V to 5.5V Input Voltage\n• Low Supply Current: 150μA\n• Matches LED Current\n• Requires Tiny Inductor and ;

AIC

沛亨半导体

丝印：3643G；Package：SOT-26；Built-in OVP White LED Step-Up Converter

文件：260.18 Kbytes 页数：13 Pages

AIC

沛亨半导体

丝印：3643K；Package：SOT-26；Built-in OVP White LED Step-Up Converter

文件：260.18 Kbytes 页数：13 Pages

AIC

沛亨半导体