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AAT3105

Skyworks
Part Number AAT3105
Manufacturer Skyworks
Description Low Cost 1x/2x Four-Channel Charge Pump WLED Driver
Published Jun 28, 2019
Detailed Description DATA SHEET AAT3105 Low Cost 1x/2x Four-Channel Charge Pump WLED Driver General Description The AAT3105 is a charge-pump...
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AAT3105
AAT3105

Overview
DATA SHEET AAT3105 Low Cost 1x/2x Four-Channel Charge Pump WLED Driver General Description The AAT3105 is a charge-pump based, current-source white LED driver capable of driving one to four LEDs up to 30mA, each.
It automatically switches between 1x mode and 2x mode to maintain the highest efficiency and optimal LED current matching.
The AAT3105 charge pump’s 1x mode (bypass mode) has very low resistance, allowing LED current regulation to be maintained with input supply voltage approaching the LED forward voltage.
LED brightness is controlled using a universal PWM interface.
The AAT3105 is available in a Pb-free, 2x2mm 10-lead SC70JW-10 package Features • Drives up to 4 LEDs at up to 30mA each • Automatic Switching Between 1x and 2x Modes • 0.
85MHz Switching Frequency • Linear LED Output Current Control • Universal PWM Interface • ±10% LED Output Current Accuracy • ±3% LED Output Current Matching • Low-current Shutdown Mode • Built-in Thermal Protectio...


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