BD9409F - White LED Driver

ROHM

General Description

BD9409F is a high efficiency driver for white LEDs and is designed for large LCDs.

BD9409F has a boost DCDC converter that employs an array of LEDs as the light source.

Key Features

DCDC converter with current mode.
LED protection circuit (Over boost protection(FB_H), LE.

📥 Download Datasheet

BD9409F white led driver by ROHM - Datasheet Preview

Datasheet Details

Part number	BD9409F
Manufacturer	ROHM
File Size	1.36 MB
Description	White LED Driver
Datasheet	BD9409F Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Datasheet LED Drivers for LCD Backlights 1ch Boost up type White LED Driver for large LCD BD9409F 1.1 General Description BD9409F is a high efficiency driver for white LEDs and is designed for large LCDs. BD9409F has a boost DCDC converter that employs an array of LEDs as the light source. BD9409F 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). Therefore it is available for the fail-safe design over a wide range output voltage. Key Specifications  Operating power supply voltage range: 11.5V to 35.0V  Oscillator frequency of DCDC: 150kHz (RT=100kΩ)  Operating Current: 2.8 mA(Typ.)  Operating temperature range: -40°C to +105°C 1.