Quad-Output TFT LCD Bias DC-DC Converter CXLC8999/B DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) panels in TSSOP package. One step-u

发布时间:2020-04-06 09:43:38 浏览次数:708 作者:嘉泰姆
摘要:Quad-Output TFT LCD Bias DC-DC Converter CXLC8999/B DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) panels in TSSOP package. One step-u

目录

1.产品概述       2.产品特点     79p嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)</span>79p嘉泰姆

5.产品封装       6.电路原理图</strong>  79p嘉泰姆

7.相关产品79p嘉泰姆

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The CXLC8999/B DC-DC converter provides regulated voltages required by thin-film transistor (TFT) liquid crystal displays (LCD) panels in TSSOP package. One step-up converter, one step-down converter, and two charge pumps convert the 8V to 14V input voltage into four output voltages. These features complete the powersupply requirements of large screen LCD panels. The step-up converter provides source voltages VS and the step-down converter provides logic voltage for the system. The dual charge pumps independently generate adjustable regulated output voltages VGL and VGH to bias the LCD. These four blocks operate with a fixed switching frequency of 500kHz or 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, overvoltage protection of the step-up converter and short-circuit protection of the step-down converter. Current mode control is used for both charge pumps to regulate its output voltage, which minimizes output ripple and capacitor sizes. The CXLC8999/B is available in an 28-pin TSSOP package.

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„ 8V to 14V Input Voltage Range 79p嘉泰姆

„ VS Output Voltage Range up to 19 V 79p嘉泰姆

„ 1% Accurate Boost Converter with 3A Switch Current 79p嘉泰姆

„ 1.5% Accurate 2.3A Step-Down Converter 79p嘉泰姆

„ 500kHz/750kHz Fixed Switching Frequency 79p嘉泰姆

„ 150mA Negative Charge Pump Driver for VGL 79p嘉泰姆

„ 150mA Positive Charge Pump Driver for VGH 79p嘉泰姆

„ Adjustable Sequencing for VGL, VGH 79p嘉泰姆

„ Gate Drive Signal to Drive External MOSFET 79p嘉泰姆

„ Internal and Adjustable Soft Start 79p嘉泰姆

„ Cycle-by-Cycle Over Current Protection 79p嘉泰姆

„ Short-Circuit Protection 79p嘉泰姆

„ Overvoltage Protection 79p嘉泰姆

„ Thermal Shutdown 79p嘉泰姆

„ Available in TSSOP-28 Package79p嘉泰姆

   应用范围 返回TOP79p嘉泰姆


„ TFT LCD Displays79p嘉泰姆

   技术规格书(产品PDF) 返回TOP 79p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.jpg79p嘉泰姆

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电路原理图&nbsp;返回TOP79p嘉泰姆

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