BM0246A Datasheet (BOOKLY) - White LED Step-Up Converter

BM0246A, White LED Step-Up Converter

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

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 Fr