ACP2766 Datasheet | Acpsemi

TSOT26,Boost WLED Driver with 38V OVP ◤GENERAL DESCRIPTION The ACP2766 is a step-up DC-DC converter which operating as current source to drive white LEDs. The light intensity of LEDs is proportional to the current passing through them. The default white LEDs current is set with the external resistor, and the feedback voltage reference is set to 200m V. During the operation, the LED current can be pulsed by adding a PWM signal to the chip, through which the duty cycle changes the feedback reference voltage. With fixed frequency of 1.2MHz, ACP2766 is allowed using tiny inductor and capacitors to minimize the footprint. For maximum protection, the chip Features open LED protection function that can disable the chip to prevent the output voltage from exceeding voltage rating during open LED conditions. . ◤APPLICATION CIRCUIT ◤Features - 2.7V to 5.5V Input Voltage Range - 200m V Reference Feedback Voltage - 1.2MHz Fixed Frequency - Internal 38V Open LED Protection - Integrated 40V,1.5A MOSFET - 10~100KHz PWM Dimming Control Range - Internal Soft Start - Under-Voltage Protection - Over Thermal Shutdown - Low EMI and Improved PSRR - TSOT26 Package Available ◤APPLICATION - 3'~10' TFT WLED Backlight - GPS,DSC,PAD - Cell Phone VIN C1 22µF OFF ON PWM L1 10µH 6 VIN LX 1 2 GND NC 5 4 EN FB...