产品概述 返回TOPqKM嘉泰姆

The CXLE81107 CXLE81107L is 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. The boost converter automatically provides the regulated output voltage for the WLED backlight without the need to calculate the output for different LED types. The switching frequency is 1MHz. It also integrates a 40V 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 1000 times of this reference current. A PWM pin can be used for PWM dimming. The CXLE81107 CXLE81107L 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 CXLE81107 CXLE81107L can detect open or short LED and offer protections. The GCXLE81107 CXLE81107Lis available in a 16-pin 3x3mm TQFN package.

   产品特点 返回TOPqKM嘉泰姆

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

„ Boost Converter qKM嘉泰姆

Š Automatically Adjusting Output Voltage qKM嘉泰姆

Š 1.0MHz Switching Frequency qKM嘉泰姆

Š Integrated 2.0A 40V NFET qKM嘉泰姆

Š Internal Loop Compensation and Soft Start qKM嘉泰姆

Š Over Current Protection qKM嘉泰姆

Š Over Voltage Protection qKM嘉泰姆

Š Over 90% High Efficiency qKM嘉泰姆

„ Six Channel Current Sink qKM嘉泰姆

Š Maximum 30mA Current Sink qKM嘉泰姆

Š 3% Current Matching and Accuracy qKM嘉泰姆

Š 100:1 PWM Brightness Dimming Range qKM嘉泰姆

„ Open/Short LED protection qKM嘉泰姆

„ Thermal Shutdown qKM嘉泰姆

„ Small 16-pin 3mmx3mm TQFN packageqKM嘉泰姆

   应用范围 返回TOPqKM嘉泰姆

„ Notebook Displays LED Backlighting qKM嘉泰姆

„ LCD Monitor LED BacklightingqKM嘉泰姆

   技术规格书（产品PDF) 返回TOP qKM嘉泰姆

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