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| Intersil汽车TFT-LCD显示器电源方案 | |||||
作者:Intersil 文章来源:本站原创 点击数: 更新时间:2007-10-5 ![]() |
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INTERSIL Automotive Grade TFT-LCD Power Supply The ISL78010 is a multiple output regulator for use in all TFT-LCD automotive applications. It features a single boost converter with an integrated 2A FET, two positive LDOs for VON and VLOGIC generation, and a single negative LDO for VOFF generation. The boost converter can be programmed to operate in either P-mode for optimal transient response or PI-mode for improved load regulation. The ISL78010 includes fault protection for all four channels. Once a fault is detected on either the VBOOST, VON or VOFF channels, the device is latched off until the input supply or EN is cycled. If a fault is detected on the VLOGIC channel, the device is latched off until the input supply is cycled. The VLOGIC channel is not affected by the EN function. The ISL78010 also includes an integrated start-up sequence for VLOGIC, VBOOST, VOFF, then VON or for VLOGIC, VOFF, VBOOST, and VON. The latter sequence requires a single external transistor. The timing of the start-up sequence is set using an external capacitor. The ISL78010 comes in a 32 Ld 5x5 TQFP package and is specified for operation over a -40°C to +105°C temperature range. ![]() ISL78010外形图 主要特性: 2A current FET 3V to 5V input Up to 20V boost output 1% regulation on boost output VLOGIC-VBOOST-VOFF-VON or VLOGIC-VOFF-VBOOST-VON sequence control Programmable sequence delay Fully fault protected Thermal shutdown Internal soft-start 32 Ld 5x5 TQFP packages Pb-free plus anneal available (RoHS compliant) 应用: All Automotive LCD Displays ![]() 图1。ISL78010方框图 ![]() 图2。升压稳压器方框图 ![]() 图画。ISL78010应用电路图。 手提/便携式显示器应用方案 (LCD/OLED) ![]() ![]() 详情请见数据表: http://www.intersil.com/data/fn/fn6501.pdf |
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