Datasheet > SCT2008S

SCT2008S

更新时间： 2024-09-26 05:34:47

品牌	Logo	应用领域
其他 - ETC		驱动器
页数	文件大小	规格书
12页	381K
描述
8-Channel Constant Current Driver,这是一款线性led驱动IC，效率高，同时设计简单。

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SCT2008S 数据手册

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Technology

SCT2008S V01_01; Jun/09

8-Channel Constant Current Driver

Product Description

The SCT2008S is an eight channels constant current driver best for LED lighting. 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 SCT2008S. The full scale current value

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

The SCT2008S guarantees to endure maximum DC 24V at each output port. Each

output of SCT2008S can sink a constant current up to 90mA. Users can simply shunt

the outputs to get higher current driverꢀability, especially in the case of high power LED

lighting.

The excellent current regulation capability allows SCT2008S 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 SCT2008S is

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

output while junction temperature exceeds 160°C the high 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.

Features

ꢀ Eight constantꢀcurrent outputs rate at 24V

ꢀ Constant current range: 10 – 60/90mA@3.3/5V

ꢀ 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

ꢀ Dropout output 0.5V@40mA,V_DD=5V

ꢀ Two steps current ramp to lower output switching noise

ꢀ All output current are adjusted through one external resistor

ꢀ Builtꢀin power on reset and thermal protection

ꢀ Supply voltage range 3.3 to 5V

ꢀ Dimming control with Schmitt triggered input

ꢀ Package: SSOP16 with heat sink pad

ꢀ Application: LED lighting, LED backlight, LED lamp

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