Datasheet > G5519

G5519

更新时间： 2024-11-14 12:23:15

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描述
TFT-LCD DC/DC Converter with Operational Amplifiers

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中文翻译

获取价格

数据手册

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G5519 数据手册

Global Mixed-mode Technology Inc.

G5519

TFT-LCD DC/DC Converter with Operational Amplifiers

Features

General Description

2.5V to 5.5V Input Supply Range

The G5519 includes a high-performance boost con-

verter, two linear-regulator controllers, and high cur-

rent operational amplifiers for TFT-LCDs. Also in-

cluded is a logic controlled, high-voltage switch with

adjustable delay.

1.2MHz Current Mode Boost Converter

Fast Transient Response

1.6% Accurate Output Voltage

18V/2.5A, 0.16Ω n-channel MOSFET

91% High Efficiency

Linear-Regulator Controllers for V_GONand V_GOFF

High-Performance Operational Amplifiers

±150mA Output Short-Circuit Current

12V/μs Slew Rate

12MHz, -3dB Bandwidth

Rail-to-Rail Input and Outputs

Internal Soft Start

Logic-Controller, High-Voltage Switch with Ad-

justable Delay

Multiple Overload Protection

Thermal Shutdown

The boost converter provides the regulated supply

voltage for the panel source driver ICs. It is a high-

frequency (1.2MHz) current-mode regulator with an

integrated 18V n-channel MOSFET that allows the use

of ultra-small inductors and ceramic capacitors. It pro-

vides fast transient response to pulsed loads while

achieving efficiencies over 86%.

Using external low-cost transistors, the linear-regulator

controllers provide tight regulation V_GON/V_GOFFfor the

panel gate drivers with fault protection.

Small 32-pin 5mmX5mm TQFN package

The operational amplifier are ideal for V_COMand

V_GAMMAapplications. They features high output current

(±150mA), fast slew rate (12V/μs), wide bandwidth

(12MHz), and rail-to-rail inputs and outputs.

Applications

LCD Monitor Panels

Notebook Computer Displays

LCD TVs

The G5519 is available in a 32-pin TQFN package for

ultra-thin LCD panels.

Ordering Information

ORDER

NUMBER

G5519RA1U

TEMP.

RANGE

PACKAGE

(Green)

MARKING

5519

-40°C to +85°C

TQFN5X5-32

Note: RA: TQFN5X5-32

Bonding Code: 1

U: Tape & Reel

Pin Configuration

SRC

REF

COMP

AGND

PGND

Thermal

Pad

OUT5

NEG5

OUT1

NEG1

POS1

OUT2

POS5

OUT4

G5519 TQFN5X5-32

Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.

Ver: 0.3

Nov 18, 2009

TEL: 886-3-5788833

http://www.gmt.com.tw

中文翻译

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