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Fairchild Semiconductor - (FAN5622 - FAN5626) 2-channel Linear LED Driver

Numéro de référence FAN5624
Description (FAN5622 - FAN5626) 2-channel Linear LED Driver
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FAN5624 fiche technique
DataSheet.in
May 2010
FAN5622 / FAN5624 / FAN5626
Linear LED Drivers with Single-Wire Digital Interface
Features
ƒ Family of Three Linear Current-Sink LED Drivers that
Support 2, 4, or 6 LED Outputs
ƒ Current Sink Driver for Each LED Output:
30mA Maximum Output Current
50mV Drop-out at 15mA IOUT
Better than 3% Matching between Channels
External RSET
ƒ Single-Wire Digital Control Interface for Easy
Programming
32 Linear Steps of Dimming Control
ƒ Less than 1µA Shut-Down Current
ƒ Short-Circuit, Under-Voltage, and Thermal Protection
ƒ Wide Input Voltage Range: 2.7 to 5.5V
ƒ Small Form-Factor Packages:
FAN5622: 6-pin Super SOT23
FAN5624: 10-lead 1.4x1.8x0.55mm UMLP
FAN5626: 10-lead 1.6x2.1x0.55mm MicroPak™ MLP
Applications
ƒ Mobile Handsets
ƒ Mobile Internet Devices
ƒ PMP and MP3 Players
ƒ LCD Modules
Description
The FAN5622, FAN5624, and FAN5626 are two-, four-, and
six- channel current-sink linear LED drivers used to backlight
the main LCD displays or keypads 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 FAN562x family of linear LED drivers 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 for a more robust solution.
The FAN5622, FAN5624, and FAN5626 are available in very
small form-factor packages: 6-pin Super SOT23, 10-lead
UMLP, and 10-lead MicroPak™ MLP, respectively.
Figure 1. Typical Application of FAN5622
Ordering Information
Part Number
FAN5622SX
FAN5624UMPX
FAN5626LX
# of Channels
2
4
6
Temperature
Range
-40 to 85°C
-40 to 85°C
-40 to 85°C
Package
6-Lead SSOT23
10-Lead UMLP
10-Lead MicroPak™ MLP
Packing
Tape and Reel
Tape and Reel
Tape and Reel
© 2010 Fairchild Semiconductor Corporation
FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1
www.fairchildsemi.com

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