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RT4532
High Efficiency Backlight LED Driver
General Description
The RT4532 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 RT4532 supports linear mappings with 256 steps to setup the brightness of backlight LEDs.
It also supports PWM dimming to adjust the brightness.
The RT4532 provides complete protection functions such as input under-voltage lockout, over-current, output overvoltage and over-temperature protection.
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