Programmable Multi-Output TFT LCD Bias Power CXLC8991 DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) panels One synchronous step-up

发布时间:2020-04-06 09:43:38 浏览次数:708 作者:嘉泰姆
摘要:Programmable Multi-Output TFT LCD Bias Power CXLC8991 DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) panels One synchronous step-up

目录

1.产品概述       2.产品特点     vPK嘉泰姆

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

5.产品封装       6.电路原理图</strong>  vPK嘉泰姆

7.相关产品vPK嘉泰姆

   产品概述 返回TOPvPK嘉泰姆


The CXLC8991 DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) panels in QFN6X6-40 package. One synchronous step-up converter, one asynchronous step-down converter, and two charge pumps regulators convert the 8V to 14V input voltage into four output voltages with 1 channel OPAMP. These features complete the power- supply requirements of large screen LCD panels. The step-up converter provides source voltages VAVDD and the step-down converter provides logic voltage VLOGIC for the system. The dual charge pumps regulators independently generate adjustable regulated output voltages VGL and VGH to bias the LCD using external charge pump attached to the switching node. The step-up converter and step-down converter operate with a fixed switching frequency of 750kHz, and all output are programmable. The CXLC8991 is available in a 40-pin QFN (6mm x 6mm) package

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„ Input Supply Range: 8V ~ 14V vPK嘉泰姆

„ Current Mode Sync-Boost Converter for AVDD vPK嘉泰姆

¾ Fixed 750kHz Switching Frequency vPK嘉泰姆

¾ 2.2A to 5A Programmable Current Limit vPK嘉泰姆

¾ 13.5V to 19.8V Programmable Output vPK嘉泰姆

¾ Integrated 20V/0.1Ω Switching N-MOSFET vPK嘉泰姆

„ Buck Converter for VLOGIC vPK嘉泰姆

¾ Fixed 750kHz Switching Frequency vPK嘉泰姆

¾ 2.2V to 3.7V Programmable Output vPK嘉泰姆

¾ Integrated 12V/0.2Ω Switching N-MOSFET vPK嘉泰姆

„ Positive Charge-Pump Regulator for VGH vPK嘉泰姆

¾ 20V to 35V Programmable Output vPK嘉泰姆

¾ Thermal Compensation vPK嘉泰姆

„ Negative Charge-Pump Regulator for VGL vPK嘉泰姆

¾ -4.5V to -13.5V Programmable Output vPK嘉泰姆

„ Built-in Power-On Sequence and Soft-Start Function vPK嘉泰姆

„ Isolation Switching PMOS for AVDD vPK嘉泰姆

„ Protection Function vPK嘉泰姆

¾ Input Under Voltage Lockout (UVLO) vPK嘉泰姆

¾ Over-Temperature Protection (OTP) vPK嘉泰姆

¾ Over-Voltage Protection (OVP) vPK嘉泰姆

¾ Over-Current Protection (OCP) vPK嘉泰姆

¾ Output Under Voltage Protection (UVP) vPK嘉泰姆

¾ Short Circuit Protection (SCP) vPK嘉泰姆

„ 2-Wire I2 C Slave Mode Interface vPK嘉泰姆

„ Available in QFN6X6-40 PackagevPK嘉泰姆

   应用范围 返回TOPvPK嘉泰姆


„ TFT LCD DisplaysvPK嘉泰姆

   技术规格书(产品PDF) 返回TOP vPK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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产品封装图&nbsp;返回TOPvPK嘉泰姆


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电路原理图&nbsp;返回TOPvPK嘉泰姆

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