BD9489F Datasheet White Led Driver

Manufacturer: ROHM

Overview: Datasheet LED Drivers for LCD Backlights 1ch Boost up type White LED Driver for large LCD BD9489F 1.

Datasheet Details

Part number	BD9489F
Manufacturer	ROHM
File Size	0.97 MB
Description	White LED Driver
Datasheet	BD9489F-Rohm.pdf

General Description

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 of DCDC (OCP), LED OCP protection, and Over boost protection (FBMAX).

Key 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 start.
Adjustable oscillation frequency of DCDC.
Wide range of analog dimming 0.2V to 3.0V.
UVLO detection for the input voltage of the power stage.

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