4-Channels HB-LED Driver with High Voltage DC-DC Controller CXLE81111 is an integrated HB-LED backlight driver that controls 4 channels of LED current for LCD backlight applications such as LCD TV and

发布时间:2020-04-06 09:43:38 浏览次数:697 作者:嘉泰姆
摘要:4-Channels HB-LED Driver with High Voltage DC-DC Controller CXLE81111 is an integrated HB-LED backlight driver that controls 4 channels of LED current for LCD backlight applications such as LCD TV and

目录

1.产品概述       2.产品特点     Nvc嘉泰姆

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

5.产品封装       6.电路原理图</strong>  Nvc嘉泰姆

7.相关产品Nvc嘉泰姆

   产品概述 返回TOPNvc嘉泰姆


The CXLE81111 is an integrated HB-LED backlight driver that controls 4 channels of LED current for LCD backlight applications such as LCD TV and LCD monitor. The CXLE81111 is capable for driving 20mA to 150mA white LEDs. The CXLE81111’s 4 channels of voltage controlled current sinks with 2% current matching 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 CXLE81111 monitors the total highest LED forward voltage string and uses its feedback signal for output regulation. A SETI pin is used for programming maximum LED current. A high contrast ratio true PWM dimming can be achieved by driving DIM pin with a PWM signal. LED current is proportional to the DIM pin duty. The CXLE81111 features extensive protection functions that include OLP, SLP, OCP, OVP and OTP. It is available in a TSSOP-20 (FD) package.

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„ 4 Channels Nvc嘉泰姆

„ Drive 20mA to 150mA Each Channel Nvc嘉泰姆

„ 100Hz to 25kHz Dimming Frequency Nvc嘉泰姆

„ Current Mode Boost Controller Nvc嘉泰姆

„ 10V to 30V Input Supply Nvc嘉泰姆

„ 50kHz to 2MHz Programmable Switching Frequency Nvc嘉泰姆

„ External Switching Frequency Synchronization Nvc嘉泰姆

„ Current Matching 2% Nvc嘉泰姆

„ Highest Vf String Detection for Regulation Nvc嘉泰姆

„ Protections: Nvc嘉泰姆

Š Open LED Protection (OLP) Nvc嘉泰姆

Š Short LED Protection (SLP) Nvc嘉泰姆

Š Switch Over Current Protection (OCP) Nvc嘉泰姆

Š Output Over Voltage Protection (OVP) Nvc嘉泰姆

Š Over Temperature Protection (OTP) Nvc嘉泰姆

„ TSSOP-20 (FD) Package Nvc嘉泰姆

„ RoHS CompliantNvc嘉泰姆

   应用范围 返回TOPNvc嘉泰姆


„ LCD TV LED Backlighting Nvc嘉泰姆

„ LCD Monitor LED BacklightingNvc嘉泰姆

   技术规格书(产品PDF) 返回TOP Nvc嘉泰姆


     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</span>!</span>
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 QQ截图20160419174301.jpgNvc嘉泰姆

产品封装图&nbsp;返回TOPNvc嘉泰姆


image.pngNvc嘉泰姆

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