Quad-Output TFT LCD Bias Power CXLC89101 DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) One step-up converter, one step-down converter

发布时间:2020-04-06 09:43:38 浏览次数:706 作者:嘉泰姆
摘要:Quad-Output TFT LCD Bias Power CXLC89101 DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) One step-up converter, one step-down converter

目录

1.产品概述       2.产品特点     C79嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)</span>C79嘉泰姆

5.产品封装       6.电路原理图</strong>  C79嘉泰姆

7.相关产品C79嘉泰姆

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The CXLC89101 DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) panels in TQFN5X5-28 package. One step-up converter, one step-down converter, and two charge pumps regulators converter the 8V to 14V input voltage into four output voltages. 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 operates with a adjustable switching frequency from 500kHz to 2MHz. And step-down converter operates with a fixed switching frequency of 750kHz. Both step-up and step-down converters operate in asynchronous switch mode. Current mode control provides fast transient response and eases loop stabilization. Fault protection includes cycle-by-cycle current limit, thermal shutdown and short-circuit protection, and over voltage protection of the step-up converter. The CXLC89101 is available in a 28-pin TQFN (5mm x 5mm) package

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„ Input Supply Range: 9.5V ~ 14V C79嘉泰姆

„ Current mode Boost converter for AVDD C79嘉泰姆

¾ Adjustable switching frequency C79嘉泰姆

¾ Integrated 20V/4A ,0.1Ω switching N-MOSFET C79嘉泰姆

¾ 1.5% accurate with 3.5-A switching current C79嘉泰姆

„ Buck Converter for VLOGIC C79嘉泰姆

¾ Fixed 750kHz switching frequency C79嘉泰姆

¾ Integrated 12-V/0.2-C Switching N-MOSFET C79嘉泰姆

¾ 1.5% accurate with 1.5-A switching current C79嘉泰姆

„ Charge-pump regulator for VGON & VGOFF C79嘉泰姆

„ Built-in power-on sequence and soft-start function C79嘉泰姆

„ GD Signal to drive external P-MOSFET C79嘉泰姆

„ Protection Function C79嘉泰姆

¾ Input Under Voltage Lockout (UVLO) C79嘉泰姆

¾ Thermal overload Protection (TOP) C79嘉泰姆

¾ Over-Voltage Protection for (OVP) C79嘉泰姆

¾ Over-Current Protection (OCP) C79嘉泰姆

¾ Output Under Voltage Protection (UVP) C79嘉泰姆

¾ Short Circuit Protection (SCP) C79嘉泰姆

„ Available in TQFN-5X5-28 PackageC79嘉泰姆

   应用范围 返回TOPC79嘉泰姆


„ TFT LCD DisplaysC79嘉泰姆

   技术规格书(产品PDF) 返回TOP C79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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