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BM0246A - White LED Step-Up Converter

General Description

6 5 1：Switch 4 2：GND 3：Feedback ※ Symbol Description 6：Supply SW Voltage GND 5：Over Voltage Symbol VIN OVP FB 4：Start-Up CE Page 1 of 8 BOOST IC (LED DRIVER) Block Diagram BM0246A PIN4 PWM CONTROL Fosc PIN6(VIN) VREF SHUTDOWN CURRENT SENSE + SLOPE COMP + - gm PIN1(SW) PIN5(OVP) 0 0

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Datasheet Details

Part number BM0246A
Manufacturer BOOKLY
File Size 140.12 KB
Description White LED Step-Up Converter
Datasheet download datasheet BM0246A Datasheet

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BOOST IC (LED DRIVER) BM0246A White LED Step-Up Converter BM0246A is a step-up DC/DC converter ¾ specifically designed to drive white LED with a ¾ ¾ constant current. It can drive two,three,or four ¾ LEDS. It switches at 1.4MHz and use tiny ¾ external components. The output capacitor can ¾ be as small as 0.22uF,which can save space ¾ and cost versus alternative solutions. Feedback ¾ voltage is as low as 105mV. Built-in OverVoltage ¾ OverVoltage Function Fast 1.4MHz Switching Frequency Requires Only 0.22uF Output Capacitor Inherently Matched LED Current High Efficiency: 90% Typical 2.5V to 16V VIN ranges Drives Up to Four series LEDs with a Li-lon cell PIN TO PIN with RT9271 and AIC1896, D246 SOT-26 Package function.