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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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 wr2嘉泰姆

„ Boost Converter wr2嘉泰姆

Š Automatically Adjusting Output Voltage wr2嘉泰姆

Š Integrated 2.0A 50V NFET wr2嘉泰姆

Š Over Current Protection wr2嘉泰姆

Š Over Voltage Protection wr2嘉泰姆

Š Over 90% High Efficiency wr2嘉泰姆

„ Six Channel Current Sink wr2嘉泰姆

Š Maximum 30mA Current Sink wr2嘉泰姆

Š 3% Current Matching and Accuracy wr2嘉泰姆

Š 100:1 PWM Brightness Dimming Range wr2嘉泰姆

„ Open/Short LED protection wr2嘉泰姆

„ Thermal Shutdown wr2嘉泰姆

„ Small 20-pin 4mmX4mm TQFN packagewr2嘉泰姆

   应用范围 返回TOPwr2嘉泰姆

„ Notebook Displays LED Backlighting wr2嘉泰姆

„ LCD Monitor LED Backlightingwr2嘉泰姆

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