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RT4501A

Richtek Technology
Part Number RT4501A
Manufacturer Richtek Technology
Description High Efficiency Backlight LED Driver
Published May 27, 2016
Detailed Description ® RT4501/A High Efficiency Backlight LED Driver General Description The RT4501/A is a high-efficiency LED driver for b...
Datasheet PDF File RT4501A PDF File

RT4501A
RT4501A

Overview
® RT4501/A High Efficiency Backlight LED Driver General Description The RT4501/A is a high-efficiency LED driver for backlight applications.
An asynchronous boost converter with an internal Schottky diode and a current source driver are designed to support 6LED/channel with wide input voltage range from 2.
5V to 5.
5V.
An I2C interface can provide easy backlight control in fast and high speed mode.
The RT4501 supports linear mappings with 256 steps to setup the brightness of backlight LEDs.
It also supports PWM dimming to adjust the brightness.
For brightness dimming, the RT4501A supports 128 steps pulse dimming which determines the LED current, and RT4501 support 256 steps PWM dimming which...


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