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| 型号： | SP7121EB |
| 厂商： | Exar Corporation |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP7121 |
| 标准包装： | 1 |
| 系列： | * |
S P 7 1 2 1
2 - C h a n n e l A d j u s t a b l e L o w D r o p o u t H i g h S i d e L i n e a r
L E D D r i v e r
January 2010
GENERAL DESCRIPTION
The SP7121 LED driver provides a simple
solution for a matched current source for any
color common cathode LEDs. The common
cathode connection allows the user to increase
the LED power dissipation by having the
cathodes heat sinked to the ground plane of
the circuit board. The SP7121 output current
value is set by an external resistor. At
shutdown mode (EN pin is LOW), the supply
current drops to .04 μ A typical.
The SP7121 is available in a small footprint
RoHS compliant, lead-free and green/halogen
free 6-pin SOT23 packages.
Rev. 2.0.0
APPLICATIONS
? Mobile Phones
? PDA, DSC, MP3 Players
? Handheld Computers
? Keypads and Displays Backlight
FEATURES
? LED Driver for Common Cathode
Parallel Connected LEDs
? Ultra Low Dropout Voltage
of 300mV @ 25mA
? No EMI, no Switching Noise
? Integrated Current Matching
? PWM Brightness Control
? Enable/Shutdown Control
? Shutdown Current < 1 μ A
? Adjustable Output Current up to 30mA
per Channel
? RoHS Compliant, Lead Free and
Halogen Free SOT23-6 Packages
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP7121 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
相关PDF资料 |
PDF描述 |
|---|---|
| SP7122BEB | EVAL BOARD FOR SP7122B |
| SP7600EB | EVAL BOARD FOR SP7600 |
| SP7601EB | EVAL BOARD FOR SP7601 |
| SP7616EB | EVAL BOARD FOR SP7616 |
| SP7648EB | EVAL BOARD FOR SP7648 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SP7121EK-F | 功能描述:LED照明驱动器 2 Channel Adjustable Current LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP7121EK-F/TR | 功能描述:LED照明驱动器 2 Channel Adjustable Current LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP7121EK-L | 功能描述:LED照明驱动器 2.7V-5.5V 25mA temp -40C to 85C RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP7121EK-L/TR | 功能描述:LED照明驱动器 COMMON CATHODE RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP7121EK-LTR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:2-Channel Adjustable Low Dropout High Side Linear LED Driver |
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