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BD9470AFM - White LED driver

Download the BD9470AFM datasheet PDF. This datasheet also covers the BD9470AEFV variant, as both devices belong to the same white led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

BD9470AEFV and BD9470AFM are high efficiency driver for white LED.

They are designed for large sized LCD.

BD9470AEFV and BD9470AFM are built-in DCDC converter that supply appropriate voltage for light source.

Key Features

  • 6ch LED constant current driver.
  • LED maximum output current 250mA.
  • Individual PWM dimming modulation allowed for LEDs.
  • ±2% LED current accuracy (when each LED is set to 130mA).
  • Built-in LED feedback voltage automatic adjustment circuit according to LED current.
  • Built-in start-up circuit independent of PWM light modulation.
  • built-in VOUT FB voltage maintenance function when PWM=Low（0%）.
  • Built-in LED current stabilization circuit while scanning operation.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BD9470AEFV-Rohm.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number BD9470AFM
Manufacturer ROHM
File Size 1.32 MB
Description White LED driver
Datasheet download datasheet BD9470AFM Datasheet

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Other Datasheets by ROHM

Part Number Description
BD9470AEFV White LED driver
BD9478F PWM pulse Generator
BD9479FV White LED Driver
BD9400BFP System Power Supply
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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.

View original datasheet text
Datasheet LED driver series for LCD back light White LED driver for medium sized and large sized LCD back light BD9470AEFVBD9470AFM ●General Description BD9470AEFV and BD9470AFM are high efficiency driver for white LED. They are designed for large sized LCD. BD9470AEFV and BD9470AFM are built-in DCDC converter that supply appropriate voltage for light source. BD9470AEFV and BD9470AFM are also built-in protection function for abnormal state such as OVP: over voltage protection, OCP: over current limit protection of DCDC, SCP: short circuit protection, open detection of LED string. Thus they are used for conditions of large output voltage and load conditions.