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AT1312B

Aimtron Technology
Part Number AT1312B
Manufacturer Aimtron Technology
Description High Efficiency Constant Current White-LEDs Driver
Published Nov 30, 2006
Detailed Description www.DataSheet4U.com AT1312A/B/C Preliminary Product Information High Efficiency, Constant Current White-LEDs Driver Fea...
Datasheet PDF File AT1312B PDF File

AT1312B
AT1312B

Overview
www.
DataSheet4U.
com AT1312A/B/C Preliminary Product Information High Efficiency, Constant Current White-LEDs Driver Feature Description The AT1312A/B/C step-up converter drives white •Operating Voltage:2.
5V to 6.
0V.
LEDs with a constant current to provide backlight in •High Operating Frequency: 1MHz cell phones, PDAs, and other hand-held devices.
It •High Output Voltage: Up to 16V/23V/28V features allowing series connection of the white LEDs so that the LED currents are identical for •Shutdown Current <1µA uniform brightness.
An enable input can be pulsed •16V/23V/28V Output Over-Voltage Protection repeatedly to adjust LED’s brightness.
The fast 1.
0 •Digital Dimming Control.
MHz current-mode PWM control allows for smaller capacitor and inductor.
Fault condition protection •Built-in Cycle-by Cycle Current-Limiting.
uses cycle-by-cycle current limiting to sense •Built-in Soft-Start Function.
maximum inductor current, thermal protection and •0.
2V Low Reference Voltage over-voltage protec...


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