AiT Semiconductor Inc.
www.
ait-ic.
com A8442 80mA 4-CHANNEL CHARGE PUMP WHITE LED DRIVER WITH LOW DROPOUT CURRENT SOURCE DESCRIPTION FEATURES The A8442 is a high performance white LED driver.
It integrates current sources and automatic mode selection charge pump.
The part maintains the high efficiency by utilizing an x1/x1.
5 fractional charge pump and low dropout current sources.
The small equivalent x1 mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of x1 mode and optimize the efficiency of Li-ion battery in white LED applications.
The A8442 supports up to 4 white LEDs and regulates a constant current for uniform intensity.
The part imp...

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