Linear LED Driver, 2-channel, with Single-wire Digital Interface

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Overview

The FAN5622 is a two-channel current-sink linear LED drivers used to backlight the main LCD display or keypad in mobile electronics, such as cellular phone handsets.
A very low dropout of 50mV allows driving LEDs without any inductors or switch capacitors. The brightness levels of the LED outputs are programmed through single-wire digital control interface. The user can program 32 linear dimming steps and turn on and off the LEDs through this interface by applying digital pulses.
The FAN5622 linear LED driver provides high efficiency due to the low drop-out voltage of the LED driver. Good matching between different channels of LED output is provided across the entire 32 dimming steps. These LED drivers also integrate short circuit, under-voltage, and thermal protection to ensure a robust solution.

  • TBA
  • • Linear Current-Sink LED Driver that Supports 2 LED Outputs• Current Sink Driver for Each LED Output:
  • 30 mA Maximum Output Current
  • 50 mV Drop-out at 15 mA IOUT
  • Better than 3% Matching between Channels
  • External RSET• Single-Wire Digital Control Interface for Programming• 32 Linear Steps of Dimming Control• Less than 1 µA Shutdown Current• Short-Circuit, Under-Voltage, and Thermal Protection• Wide Input Voltage Range: 2.7 to 5.5 V

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FAN5622SX

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Pb

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H

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TSOT-23-6

1

260

REEL

3000

Y

5.5

60

1

2

$0.2361

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