背光驱动�_相关信息_联睿国际电子有限公司

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背光驱动

价格：面议

产品型号： SN3226

有效期：长期有效

所在地：广东省深圳市

配送信息：

无

供应数量：不限

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详细说明

SN3226

Four Channel White LED Driver

Description

The SN3226 is a low noise, constant frequency charge pump DC/DC converter for white LED applications. The SN3226 is capable of driving up to four channels of LEDs at preset 20mA per channel from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher current LEDs. Only one 0.22μF flying capacitors and two small 1μF capacitors (at Vcc and Vout) make this part ideally suited for small, battery-powered applications.

The serial digital input is used to enable, disable, and set current for each LED with 14 settings down to 1.8mA. Each output of the SN3226 is equipped with built-in soft-start circuitry prevents excessive inrush current during start-up. A low-current shutdown feature disconnects the load from the input and reduces quiescent current to less than 1μA.

The SN3226 is available in a Pb-free, space-saving 3.00×3.0mm 10-pin DFN10 package.

Features

V_IN Range: 2.7V to 5.5V
Fully Programmable Current with Single Wire
——14 Current Levels
Drives up to Four Channels of LEDs
No Inductors, Low Noise Operation
Small Application Circuit
Built-In Thermal Protection
Automatic Soft Start
I _Q<1μA in Shutdown
3.0×3.0mm DFN10 Package

Applications

Cell Phone/Smart Phone/PDA
Mp3/Mp4/PMP
White LED Backlighting

Typical Application Circuit

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联睿国际电子有限公司   地址：深圳市宝安区民治民康路东明大厦1406室
联系人：王潜   电话：0755-23977644   手机：13923796894   传真：0755-23977644
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