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LN5924

Part Number	LN5924
Manufacturer	natlinear
Description	Constant-Current White LED Bias
Published	Dec 4, 2018
Detailed Description	Ultra Low-Dropout, Constant-Current White LED Bias LN5924 ■ General Description The LN5924 is a high performance ultra...
Datasheet	LN5924 PDF File

Overview

Ultra Low-Dropout, Constant-Current White LED Bias LN5924 ■ General Description The LN5924 is a high performance ultra low- dropout constant current bias supply for white LEDs.
It can be used as an alternative to the simple ballast resistors in conventional parallel white LEDs applications.
For dimming control, an enable input pin is controlled by processor GPIO output pulses for 16 level linear current.
Using a low frequency PWM waveform to this enable input pin also controls the average LED current which is proportional to the PWM duty.
The LN5924 is suitable for single cell Li-ion battery power device that using low forward voltage white LEDs.
The white LEDs can be powered directly from battery without extra external components.
This takes an advantage of highest efficiency and creates no EMI problem.
■ Applications  Mobile Phones  White LED backlighting  Camera Flash LED Lighting ■ Ordering Information LN5924 ①② (Eg: LN5924QR) Item ① ② Symbol D P Q D R L ...

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