内部集成电荷泵，运算放大器和高压开关 用于TFT-LCD的DC-DC转换器

EUP2681是一款用于监视器或笔记本TFT-LCD面板供电的专用芯片，其直流输入电压范围为：2.5V-5.5V。该芯片内部集成了升压转换器，正、负电荷泵，快速VCOM 缓冲器和高压开关四个部分。\n升压转换器内置了功率开关管，其峰值电流高达3.5A；采用固定频率峰值电流模控制技术，并结合外部频率补偿功能使其具有快速负载响应特性和易于补偿的优点；采用1.2MHz高速开关频率，极大的减小了电感、电容的取值，为节约PCB面积和成本提供了有利条件；同时，还提供了欠压保护、过压保护、过流保护、过温保护等功能，确保芯片安全可靠的工作。\n正、负电荷泵可根据用户需求，灵活调整倍压系数以产生正、负两路供电电 •输入电压范围：2.5V-5.5V\n•1.2MHz 电流模升压转换器\n- 内置 20V, 3.5A, 0.16Ω. N-MOSFET\n- 效率高达 90%\n- 内部数字软启动\n- 快速负载瞬态响应\n- 过温保护\n•输出电压可调的电荷泵为TFT栅极提供导通电压\n•输出电压可调的电荷泵为TFT栅极提供关断电压\n•高速大电流18V VCOM 缓冲器\n- 带宽20MHz\n- 压摆率45V/µS\n- 最小500mA的输出峰值电流\n•高压开关电路\n- 下降斜率可调\n- 减小面板与栅极走线间的耦合效应\n- 闪烁补偿电路\n•输入欠压锁存和过温保护\n•24脚 4mm×;

TFT LCD DC-DC Converter with Integrated Charge Pumps, OP-AMP and HV-Switch

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Dual Asychronous Receiver/Transmitter

Dual Asychronous Receiver/Transmitter The MC2681 dual universal asychronous receiver/transmitter (DUART) is part of the MC68000 Family of peripherals and directly interfaces to the MC68000 processor via a general-purpose interface that may be used with both sychronous and asychronous microproces

Dual asynchronous receiver/transmitter DUART

DESCRIPTION The Philips Semiconductors SCN2681 Dual Universal Asynchronous Receiver/Transmitter (DUART) is a single-chip MOS-LSI communications device that provides two independent full-duplex asynchronous receiver/transmitter channels in a single package. It interfaces directly with microprocess

Switched Capacitor Voltage Converter

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Dual Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable

文件：292.51 Kbytes Page：21 Pages

Dual Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable

文件：292.51 Kbytes Page：21 Pages