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8-Channels LED Driver CXLE81109B/C/L is an integrated power LED backlight driver that controls 8 channels of LED current for LCD backlight applications such as notebook computer and LCD monitor | |||||||||||||||||||||||||||||||||||||||||
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目录产品概述 返回TOP The CXLE81109B/C/L is an integrated power LED backlight driver that controls 8 channels of LED current for LCD backlight applications such as notebook computer and LCD monitor. The CXLE81109B/C/L is a current mode boost converter integrated with 48V/2.5A power switch drivers the LED array. The CXLE81109B/C/L’s 8 channels of voltage controlled current sinks with current matching within 1.5%, which compensate for the non-uniformity effect of forward voltage variance in the LED stacks. To minimize the voltage headroom and power loss in the typical multi-strings operation, the CXLE81109B/C/L monitors the total highest LED forward voltage string and uses its feedback signal for output regulation. A SET pin is used for programming maximum LED current. A high contrast ratio true PWM dimming can be achieved by driving PWM pin with a PWM signal. LED current is proportional to the PWM pin duty. The CXLE81109B/C/L features extensive protection functions that include OLP, OCP, OVP and OTP. It is available in a TQFN4X4-24 & TSSOP-20 (FD) package.产品特点 返回TOP „ 8 Channels „ 4.2V to 24V Input Supply „ 48V Maximum Output Voltage „ Channel Full current Programmable up to 30mA „ Current Matching 1.5% „ Highest Vf String Detection for Regulation „ High Accuracy Digital Dimming by PWM Pin „ Automatic Connect/Disconnect LED „ 1MHz Switching Frequency „ Power sequence free for EN,PWM and VIN „ Protections: Š Open LED Protection (OLP) Š Over Current Protection (OCP) Š Over Voltage Lockout (OVP) Š Over Temperature Protection (OTP) „ TQFN4X4-24 & TSSOP-20 (FD) Package „ RoHS Compliant 应用范围 返回TOP „ Notebook Display LED Backlighting „ LCD Monitor LED Backlighting „ LCD TV LED Backlighting „ Automotive Display Backlighting 技术规格书（产品PDF) 返回TOP 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
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8-Channels LED Driver CXLE81109B/C/L is an integrated power LED backlight driver that controls 8 channels of LED current for LCD backlight applications such as notebook computer and LCD monitor
发表时间：2025-10-22浏览次数：129
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