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A8230A

Part Number	A8230A
Manufacturer	AiT Semiconductor
Description	ULTRA LOW-DROPOUT CONSTANT-CURRENT WITHOUT WHITE LED BIAS
Published	May 29, 2015
Detailed Description	AiT Semiconductor Inc. www.ait-ic.com A8230A ULTRA LOW-DROPOUT CONSTANT-CURRENT WITHOUT WHITE LED BIAS DESCRIPTION The...
Datasheet	A8230A PDF File

Overview

AiT Semiconductor Inc.
www.
ait-ic.
com A8230A ULTRA LOW-DROPOUT CONSTANT-CURRENT WITHOUT WHITE LED BIAS DESCRIPTION The A8230A is a high performance ultra lowdropout 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 32 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 A8230A is suitable for single cell Li-ion bat-tery power device that using low forward voltage white LEDs.
The white...

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