White LED Driver
Datasheet
LED Drivers for LCD Backlights
White LED Driver for large LCD Panels (DCDC Converter type)
BD9428
●General D...
Description
Datasheet
LED Drivers for LCD Backlights
White LED Driver for large LCD Panels (DCDC Converter type)
BD9428
●General Description
BD9428 is a high efficiency driver for white LEDs and designed for large LCDs. This IC is built-in a boost DCDC converters that employ an array of LEDs as the light source. BD9428 has some protect function against fault conditions, such as the over-voltage protection (OVP), the over current limit protection of DCDC (OCP), the short circuit protection (SCP), the open detection of LED string. Therefore BD9428 is available for the fail-safe design over a wide range output voltage.
●Key Specifications
Operating power supply voltage range: 9.0V to 35.0V
LED minimum current
30mA
LED maximum current:
250mA
Oscillator frequency:
150kHz (RT=100kΩ)
Operating Current:
4.5mA (Typ.)
Operating temperature range:
-40°C to +85°C
●Applications
TV, Computer Display, Notebook, LCD Backlighting
●Features
4ch LED constant cu...
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