SC441C

更新时间： 2024-11-09 06:10:15

品牌	Logo	应用领域
商升特 - SEMTECH		驱动
页数	文件大小	规格书
1页	46K
描述
High Efficiency Integrated Driver for 4-Strings of 150mA LEDs

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

SC441C 数据手册

SC441C

High Eꢀciency Integrated Driver for

4-Strings of 150mA LEDs

POWER MANAGEMENT

Features

Description

Wide input voltage range from 4.5V to 27V

42V maximum output voltage

The SC441C is a high-eciency multiple string WLED driv-

er with an integrated boost converter. It operates over

a wide input range from 4.5V to 27V with a maximum

output voltage of 42V and a 2.5A internal power switch.

It can drive up to 48 WLEDs in 4 strings with current up

to 150mA per string. The string-to-string current match-

ing is 2% typical, 3% maximum. The overall eciency is

greater than 90% due to the low current sense voltage

and a low-impedance internal power switch. The wide

PWM dimming range boasts a ratio of 500: 1.

Drives up to 48 WLEDs in 4 strings

Programmable LED current for up to 150mA per

string

+/- 2% string-to-string current matching

Up to 90% eꢀciency

Wide 0.2% to 100% PWM dimming range

Possible analog dimming

Integrated 2.5A power switch

700KHz switching frequency for small size

Adjustable OVP for cost-eective output cap selection

Open/short LED protection

The 700KHz switching frequency enables the user to op-

timize the external component sizes for eciency. When

there are fewer than 12 LEDs in each string, users can ad-

just the output voltage protection yielding an allowable

reduction in associated costs, size and voltage ratings of

the output capacitor.

Thermal protection with auto-recovery

Thermally enhanced TSSOP-20 EDP package

Pb Free, Halogen Free, andWEEE/RoHS Compliant

The SC441C also features comprehensive open and short-

circuit LED protection functions. It disables the corre-

sponding strings with LED open or LED short conditions

while maintaining normal operation of other, unaected

LED strings. This feature allows LCD panels to remain

viewable even under LED failure, wire disconnect, or

short-circuit conditions. The internal thermal shutdown

protects the IC from overheating at abnormal conditions.

Applications

Medium-sized LCD panel

Notebook Display

Automotive Car Navigation Display

Sub-Notebook and Tablet Computer Displays

Portable Media Players

The SC441C is available in a thermally-enhancedTSSOP-20

EDP package.

Typical Application Circuit

9LQꢃꢅꢀꢆꢇ9ꢃꢂꢄꢈ9ꢉ

9RXWꢃꢅꢀꢄ9ꢉ

ꢁ

ꢄ

9,1

9287

ꢀꢃ6WULQJV

293,1

))/$*

293571

3:0

ꢁꢄ

6&ꢀꢀꢁ&

ꢀ

,2ꢁꢂꢀ

,2ꢁꢂ ꢀ

&203

,26(7

$*1'

,2*1'

3*1'

('3

www.semtech.com

March 04, 2010

中文翻译

下载PDF

与SC441C相关器件

型号	品牌	获取价格	描述	数据表
SC441CTETRT	SEMTECH	获取价格	LED Driver, PDSO20,
SC441D	SEMTECH	获取价格	High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
SC441DEVB	SEMTECH	获取价格	High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
SC441DTETRT	SEMTECH	获取价格	High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
SC442	SEMTECH	获取价格	10-Channel, Integrated, High Efficiency 120 White LED Driver
SC443	SEMTECH	获取价格	High Efficiency Integrated Boost Driver for 3-Strings of 30mA LEDs
SC4431	SEMTECH	获取价格	SHUNT REGULATOR WITH OPEN COLLECTOR OR OUTPUT
SC4431_03	SEMTECH	获取价格	Shunt Regulator With Open Collector Output
SC4431CSK-.5.TRT	SEMTECH	获取价格	Three Terminal Voltage Reference, 1 Output, 1.224V, PDSO5, SOT-23, 5 PIN
SC4431CSK-.5TRT	SEMTECH	获取价格	Voltage Reference, BIPolar, PDSO5,

与SC441C相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

22
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

21
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

47
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

39

产品中心

服务支持

精选活动

关于我们

帮助中心

SC441C

SC441C 数据手册

与SC441C相关器件

与SC441C相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

SC441C

SC441C 数据手册

与SC441C相关器件

与SC441C相关文章

您还可以找

您在本页遇到什么问题？