FAN5611_06 Datasheet, PDF (1/14 Pages) Fairchild Semiconductor – Low-Dropout LED Drivers for White, Blue, or any Color LED

FAN5611/FAN5612/FAN5613/FAN5614
Low-Dropout LED Drivers for White, Blue,
or any Color LED
November 2006
tm
Features
■ LED drivers for parallel-connected LEDs (2 to 4)
■ Ultra-low voltage drop (< 300mV) to support direct
Li-ion applications
■ No EMI, no switching noise
■ No external components needed for current matching
■ Both analog and PWM brightness control
■ FAN5611, FAN5613 feature up to 160mA bias current
(up to 40mA for each LED)
■ FAN5612 features up to 120mA bias current
(up to 40mA for each LED)
■ FAN5614 features up to 160mA bias current
(up to 80mA for each LED)
■ Enable/Shutdown control (FAN5612, FAN5613,
FAN5614)
■ Shutdown current < 1μA
■ Small footprint SC-70 and MLP
Applications
■ Cell Phones
■ PDA, DSC, MP3 Players
■ Handheld Computers
■ LCD Display Modules
■ Keyboard Backlight
■ LED Displays
Description
The FAN5611/12/13/14 low-dropout product family is
designed to drive two to four parallel LEDs, providing
matched current source bias for all color LEDs. The LED
current is set by an external resistor, R_SET. The
FAN5611/13 supports four parallel LEDs with up to
160mA bias current (up to 40mA per output). The
FAN5612 supports three LEDs with up to 120mA bias
current (40mA per output). The FAN5614 drives two
high-current LEDs (80mA per output). Pin I1 should
always be connected to an LED to provide a matched
current for any additional LEDs.
The FAN5612/13 and 14 are selected using an ENABLE
pin. When the chip is not selected (ENABLE pin is
LOW), the supply current drops to less than 1µA.
The FAN5611, FAN5612, and FAN5614 are available in
an SC-70 package. The FAN5611 and FAN5613 are
available in MLP packages.
Ordering Information
Product Number
Package Type
FAN5611
FAN5612
FAN5613
6-Lead SC-70 / 2x2mm 6-Lead MLP
6-Lead SC-70
2x2mm 8-Lead MLP
FAN5614
6-Lead SC-70
Table 1. Ordering Information
© 2003 Fairchild Semiconductor Corporation
FAN5611/FAN5612/FAN5613/FAN5614 Rev. 1.0.9
Order Code
FAN5611S7X / FAN5611MPX
FAN5612S7X
FAN5613MPX
FAN5614S7X
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