AT1313 - High Efficiency Constant Current White-LED Driver

Product Overview

Aimtron Technology

Part number	AT1313
Manufacturer	Aimtron Technology
File Size	215.37 KB
Description	High Efficiency Constant Current White-LED Driver
Datasheet	AT1313 Datasheet
Additional preview pages of the AT1313 datasheet.

The AT1313 step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices.

allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness. An enable input can be pulsed repeatedly to adjust LED’s brightness. The fast 1.4 MHz current-mode PWM control allows for smaller capacitor and inductor. Fault condition protection uses cycle-by-cycle current limiting to sense maximum inductor current, thermal protection and over-voltage protection. Also included soft-start eliminates inrush current during start-up. The 0.2V low reference.

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Published: Nov 30, 2006 |