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LED driver IC Non-isolate driver IC for LED-RM9281S

LED driver IC Non-isolate driver IC for LED-RM9281S

Country/Region china
Company CTC Technology Co.,Ltd
Categories LED Driver ICs
Update 2016-06-17 18:07:11
ICP License Issued by the Chinese Ministry
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Location: Home -> Products -> LED driver IC -> Non-isolate driver IC for LED -> Non-isolate driver IC for LED-RM9281S
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Non-isolated Buck LED Driver

Product:RM9281S

General Description

The RM9281S is a high precision non-isolated buckdriver, specially designed for 85VAC~265VAC inputnon-isolated constant current LED lighting.RM9281Scan regulate the output current by switch on and offwith built_in three_stage dimming circuit. Operating in
critical conduction mode, the power MOSFETswitching loss is reduced and the inductor is fullyutilized.

The RM9281S integrates a 500V power MOSFET. Withfew external components, the LED output current canbe precisely controlled.

The RM9281S utilizes patent pending floating groundstructure. The inductor current is sensed during thewhole switching cycle. So it achieves high precisionoutput current control, and excellent line regulation andload regulation.

The RM9281S offers rich protection functions toimprove the system reliability, including LED opencircuit protection, LED short circuit protection, VCCunder voltage protection, CS resistor open circuitprotection and cycle by cycle current limit. All theprotection functions are auto-recovery. The systemreliability is further improved by the thermal regulationfunction. The output current is reduced when the driveris over temperature.

Features

Three_stage dimming regulation

Internal 500V Power MOSFET

System Efficiency up to 95%

3% LED Output Current Accuracy

Excellent Line and Load Regulation

Critical Conduction Mode Operation

Ultra Low (30uA) Start Up Current

Ultra Low (300uA) Operating Current

LED Short/Open Protection

Current Sensing Resistor Open Protection

Cycle by Cycle Current Limit

VCC Under Voltage Protection

Auto Fault Recovery

Thermal Regulation Function

Available in SOP-8 Package

三、Applications

LED Bulb, Spot Light

T8/T5LED String

Other LED Lighting

四、Package/Order Information

五、Typical Application

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Tel:+86-769-81150556Mob:+86-18929103949 Ms Tang

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Shenzhen office:Baifuhui Industrial Park,Jianshedonglu Road,Longhua District,Shenzhen City,Guangdong Province,China

Zhongshan office:Shijihaoting,Longchang Road,Dongsheng Village,Zhongshan City,Guangdong Province,China

Hangzhou office:Jiangnanmoka,Wenyan Village,Xiaoshan District,Hangzhou City,Zhejiang Province,China

Office Website: www.topctc.com


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