BD9489F Datasheet - Rohm

BD9489F White LED Driver

BD9489F is a high efficiency driver for white LEDs and is designed for large LCDs. BD9489F has a boost DCDC converter that employs an array of LEDs as the light source. BD9489F has some protect functions against fault conditions, such as over-voltage protection (OVP), over current limit protection o.

BD9489F Features

* DCDC converter with current mode

* As PWM=L, the retaining function of Vout, FB voltage

* VOUT discharge function at shutdown

* LED protection circuit (Over boost protection, LED OCP protection)

* Over-voltage protection (OVP) for the output voltage Vout

* Adjustable soft s

BD9489F-Rohm.pdf