Datasheet > SCT2002

SCT2002

更新时间： 2024-09-25 11:46:23

品牌	Logo	应用领域
其他 - ETC		驱动
页数	文件大小	规格书
11页	479K
描述
3-Channel Constant Current Driver

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SCT2002 数据手册

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Technology

SCT2002 ^{V01_01; May/09}

3-Channel Constant Current Driver

Product Description

The SCT2002 is a three channels constant current driver best for LED backlight. It

provides the PWM control effect by sinking constant current from LED clusters with

minimum pulse width 200ns. The PWM control is performed by connecting the PWM

signal from system control unit to OE pin of the SCT2002. The full scale current value

of each output is set by an external resistor connected to REXT pin.

The SCT2002 guarantees to endure maximum DC 24V at each output port. Each

output of SCT2002 can sink a constant current up to 45mA. Users can simply shunt

the outputs to get higher current driver-ability, especially in the case of high power LED

lighting.

The excellent current regulation capability allows SCT2002 easily drive each output

current to a constant stable output nearly without affected by power supply of LED,

loading due to variant V_Fof LEDs and operating temperature. The SCT2002 is

equipped with over temperature protection. The three channels IC stops driving the

output while junction temperature exceeds 160°C the highest limit and the output will

be reactivated while the junction temperature is below 110°C the low limit. In

conclusion, the driver system is protected from damage of overheated. Furthermore,

with wide operating range, the SCT2002 can be applied to lower input supply system.

Features

Three constant-current outputs rate at 24V

Constant current range: 5 – 45mA@5V, 5-30mA@3.3V

Excellent regulation to load, supply voltage and temperature

Minimum PWM pulse width 200ns

±2%(typ) current matching between outputs

±4%(typ) current matching between ICs

Low dropout output 0.5V@20mA

All output current are adjusted through one external resistor

Built-in power on reset and thermal protection

Supply voltage range 3.3V to 5V

Dimming control with schmitt triggered input

Interlaced 30ns delay of output to lower bouncing noise

Package: Small 2mmx2mm DFN

Application: Mini light bar, LED backlight, LED lamp

TEL:0755-82571529/13428925925

FAX:0755-89374256

E-mail:dekay_sz@126.com

深圳市德凯源科技有限公司 SCT(晶锜科技)一级代理

地址：深圳市福田区中航路都会电子城2B102A

http://www.dekay-sz.com

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