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參數資料
| 型號： | SP7615 |
| 英文描述： | Four Channel Constant Current LED Driver |
| 中文描述： | 4通道恒定電流LED驅動器 |
| 文件頁數： | 1/10頁 |
| 文件大?。?/td> | 244K |
| 代理商： | SP7615 |
1
Date: 08/31/05
SP7615 Four Channel Constant Current LED Driver Copyright 2005 Sipex Corporation
SP7615
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
I
SET
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
FEATURES
■
Cost Effective LED driver
■
Constant current output ideal for Driving LED strings
■
Four Channel LED Driver provides matched LED
curren
t
■
Current adjusted via an external resistor
■
PWM dimming possible
■
Small 2mm x 3mm DFN package
■
Outputs can be connected in parallel to
increase drive
■
Constant current for wide cathode voltage range
(1.0V to 16V)
■
Highly integrated design, minimal components
■
Thermal shutdown protects the driver
APPLICATIONS
■
Next Generation Mobile Phones
■
PDA, DSC, MP3 Players
■
Handheld Computers
■
LCD Display Modules
■
Keyboard Backlight
■
LED Displays
Four Channel Constant Current LED Driver
Preliminary
Now Available in Lead Free Packaging
DESCRIPTION
SP7615
8 Pin DFN
8
7
6
5
1
2
3
4
LED1
LED2
LED3
LED4
EN
GND
ISET
VCC
V
CC
EN
GND
C1
1n
R1
SP7615
EN
GND
LED1
V
CC
I
SET
LED2
LED3
LED4
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SP7615_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Four Channel Constant Current LED Driver |
| SP7615_1 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP7615EB | 功能描述:LED 照明開發工具 LDO LED Drvr for any Color LED w/A Shtdwn RoHS:否 制造商:Fairchild Semiconductor 產品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| SP7615ER | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP7615ER/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Four Channel Constant Current LED Driver |
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