BD6155FVM Datasheet - Rohm

BD6155FVM DC/DC converter for LCD back light

Pin No. 1 2 3 4 5 6 7 8 Pin Name CURRENT1 CURRENT2 STBY LEDS LED GND C VBAT Function Fixed current setup pin1. Fixed current setup pin2. Stand-by pin (High:Operation, Low:No operation) LED driver current pin (Fixed current sink pin) LED cathode connection pin for charge pump Ground Capacitor connec.

BD6155FVM Communication ICs DC/DC converter for LCD back light BD6155FVM BD6155FVM is an ideal IC to drive white LED used for the LCD back light of cellular phones, and PDA etc. This IC incorporates charging pump step-up circuit to drive white LED with high VF. It also integrates a driver to drive white LED with 4-step constant current. Only one external resistor can set the current value. !Applications Small portable appliances, such as cellular phones, PHS, PDA Battery-powered equipments usi.

BD6155FVM Features

* 1) Built-in charging pump step-up circuit. 2) Built-in constant current driver for LED. (Current value : 4 steps variable) 3) Ultra small MSOP8 package. (Height 0.9mm Max.) !Absolute maximum ratings (Ta=25°C) Parameter Maximum supply voltage Maximum input voltage Power dissipation Symbol VBAT VIN P

BD6155FVM_Rohm.pdf