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SP7615

Part Number	SP7615
Manufacturer	Sipex Corporation
Description	Four Channel Constant Current LED Driver
Published	Aug 27, 2007
Detailed Description	www.DataSheet4U.com SP7615 Four Channel Constant Current LED Driver FEATURES VCC 1 8 LED1 ■ Cost Effective LED driver ...
Datasheet	SP7615 PDF File

Overview

www.
DataSheet4U.
com SP7615 Four Channel Constant Current LED Driver FEATURES VCC 1 8 LED1 ■ Cost Effective LED driver SP7615 7 LED2 EN 2 ■ Constant current output ideal for Driving LED strings 6 LED3 GND 3 8 Pin DFN ■ Four Channel LED Driver provides matched LED ISET 4 5 LED4 current ■ Current adjusted via an external resistor ■ PWM dimming possible Now Available in Lead Free Packaging ■ Small 2mm x 3mm DFN package ■ Outputs can be connected in parallel to APPLICATIONS increase drive ■ Constant current for wide cathode voltage range ■ Next Generation Mobile Phones (1.
0V to 16V) ■ PDA, DSC, MP3 Players ■ Highly integrated design, minimal components ■ Handheld Computers ■ LCD Display Modules ■ Thermal shutdown protects the driver ■ Keyboard Backlight ■ LED Displays DESCRIPTION The SP7615 is a linear constant current driver designed to drive multiple LEDs in series from a high input voltage rail.
The driver acts as a high current matched, four-channel current source ensuring constant LED current for a range of input voltages.
The SP7615 allows implementing the lowest cost LED driver for a variety of applications.
Internal circuitry maintains the pre-set constant current output for a wide voltage range at the LED outputs (LED1,2,3,4).
LED current can be adjusted up to 125mA per string with an external resistor.
The dimming can be achieved by controlling the ISET input or by feeding a PWM signal to the EN pin.
Fast EN turn-on and turn-off time allows for very fast PWM dimming frequencies, completely eliminating flicker.
The built-in thermal protection automatically adjusts LED current to prevent overheating.
TYPICAL APPLICATION SCHEMATIC VCC EN C1 1n GND Oct 23-06 VCC EN GND SP7615 LED1 ® LED2 LED3 LED4 R1 ISET SP7615 Four Channel Constant Current LED Driver © Copyright 2006 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Vcc, VLED1, VLED2, VLED3, VLED4, Voltage to GND .
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0.
3V to 16V EN Voltage to GND.
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