产品概述 返回TOPOaX嘉泰姆

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.

   产品特点 返回TOPOaX嘉泰姆

„ 5V to 24 V Input Supply Voltage OaX嘉泰姆

„ Boost Converter OaX嘉泰姆

Š Automatically Adjusting Output Voltage OaX嘉泰姆

Š Integrated 2.0A 50V NFET OaX嘉泰姆

Š Over Current Protection OaX嘉泰姆

Š Over Voltage Protection OaX嘉泰姆

Š Over 90% High Efficiency OaX嘉泰姆

„ Six Channel Current Sink OaX嘉泰姆

Š Maximum 30mA Current Sink OaX嘉泰姆

Š 3% Current Matching and Accuracy OaX嘉泰姆

Š 100:1 PWM Brightness Dimming Range OaX嘉泰姆

„ Open/Short LED protection OaX嘉泰姆

„ Thermal Shutdown OaX嘉泰姆

„ Small 20-pin 4mmX4mm TQFN packageOaX嘉泰姆

   应用范围 返回TOPOaX嘉泰姆

„ Notebook Displays LED Backlighting OaX嘉泰姆

„ LCD Monitor LED BacklightingOaX嘉泰姆

   技术规格书（产品PDF) 返回TOP OaX嘉泰姆

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