AIC1647 converter equivalent, white led step-up converter.
1.2MHz Fixed Frequency Current-Mode PWM Operation. Efficiency Up to 84% at VIN=4.2V, 3LEDs, ILED=20mA Drives Up to 6LEDs in series Low Supply Current: 70µA Matches LED Cu.
Cellular Phones PDAs Digital Still Cameras Handheld Devices White LED Display Backlighting
DESCRIPTION
AIC1647 is a fix.
AIC1647 is a fixed frequency step-up DC/DC converter designed to drive white LEDs with a constant current to provide backlight in handheld devices. Series connection of the LEDs provides identical LED currents resulting in uniform brightness. This co.
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