Boost WLED Driver for Backlights CXLE81108 provides many protection schemes to avoid any abnormal operation. Over current protection is designed to protect internal NFET. It also provides over voltage

发布时间:2020-04-06 09:43:38 浏览次数:716 作者:嘉泰姆
摘要:Boost WLED Driver for Backlights CXLE81108 provides many protection schemes to avoid any abnormal operation. Over current protection is designed to protect internal NFET. It also provides over voltage

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1.产品概述       2.产品特点     4E0嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)</span>4E0嘉泰姆

5.产品封装       6.电路原理图</strong>  4E0嘉泰姆

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The boost converter automatically provides the regulated output voltage for the WLED backlight without the need to calculate the output for different LED types. It also integrates a 50V NFET that provides high output power. The 6-channel current sink is ideal for constant current driving, and, well matched less than 3% (typical). To set the maximum driving current, the ISET pin is used to determine reference current. Each channel of the current sink is set to 58 times of this reference current. A PWM pin can be used for PWM dimming. The CXLE81108 provides many protection schemes to avoid any abnormal operation. Over current protection is designed to protect internal NFET. It also provides over voltage and over temperature protection. The CXLE81108 can detect open or short LED and offer protections. The CXLE81108is available in a 20-pin 4X4mm TQFN package.The CXLE81108is a 6-channel boost WLED driver for backlight applications. It features a high-performance boost converter, six channel current sink with 3% current matching and accuracy, and PWM brightness dimming control.

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„ 5V to 24 V Input Supply Voltage 4E0嘉泰姆

„ Boost Converter 4E0嘉泰姆

Š Automatically Adjusting Output Voltage 4E0嘉泰姆

Š Integrated 2.0A 50V NFET 4E0嘉泰姆

Š Over Current Protection 4E0嘉泰姆

Š Over Voltage Protection 4E0嘉泰姆

Š Over 90% High Efficiency 4E0嘉泰姆

„ Six Channel Current Sink 4E0嘉泰姆

Š Maximum 30mA Current Sink 4E0嘉泰姆

Š 3% Current Matching and Accuracy 4E0嘉泰姆

Š 100:1 PWM Brightness Dimming Range 4E0嘉泰姆

„ Open/Short LED protection 4E0嘉泰姆

„ Thermal Shutdown 4E0嘉泰姆

„ Small 20-pin 4mmX4mm TQFN package4E0嘉泰姆

   应用范围 返回TOP4E0嘉泰姆


„ Notebook Displays LED Backlighting 4E0嘉泰姆

„ LCD Monitor LED Backlighting4E0嘉泰姆

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