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BD9483F - White LED Driver

Description

BD9483F,FV is a high efficiency driver for white LEDs and designed for large LCDs.

This IC is built-in 2ch boost DCDC converters that employ an array of LEDs as the light source.

Features

  • >.
  • 2ch boost DCDC converter with current mode.
  • LED protection circuit (Max duty protection, LED OCP protection).
  • Over-voltage protection (OVP) for the output voltage Vout.
  • Adjustable soft start.
  • The wide range of analog dimming 0.2V-3.0V.
  • 2ch independent PWM dimming input.
  • The UVLO detection for the input voltage of the power stage.
  • FAIL logic output.
  • Package SOP-24: Pin Pitch: W(Typ. ) D(Typ. ) H(Max. ) 15.00mm x 7.80mm x 2.01mm 1.27mm.
  • Typical Applic.

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Datasheet preview – BD9483F

Datasheet Details

Part number BD9483F
Manufacturer ROHM
File Size 1.00 MB
Description White LED Driver
Datasheet download datasheet BD9483F Datasheet
Additional preview pages of the BD9483F datasheet.

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Full PDF Text Transcription

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Datasheet LED Drivers for LCD Backlights White LED Driver for large LCD Panels (DCDC Converter type) BD9483F,FV ●General Description BD9483F,FV is a high efficiency driver for white LEDs and designed for large LCDs. This IC is built-in 2ch boost DCDC converters that employ an array of LEDs as the light source. BD9483F,FV has some protect function against fault conditions, such as the over-voltage protection (OVP), the over current limit protection of DCDC (OCP), Max duty protection, LED OCP protection. Therefore BD9483F,FV is available for the fail-safe design over a wide range output voltage. ●Key Specification  Operating power supply voltage range:11.0V to 35.0V  Oscillator frequency: 150kHz (RT=100kΩ)  Operating Current: 3mA (typ.
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