MAX9552EUD+T

更新时间： 2024-11-05 13:11:11

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MAX9552EUD+T 数据手册

19-3858; Rev 1; 2/06

High-Current VCOM Drive Buffers

for TFT LCDs

General Description

Features

The MAX9550/MAX9551/MAX9552 provide a VCOM

source for TFT LCDs. The MAX9550/MAX9551/

MAX9552 source and sink a large current to quickly

restore the VCOM voltage, making it ideal for TFT LCDs.

The output settles to within 0.1% in less than 2µs. In

addition, the MAX9550/MAX9551/MAX9552 directly drive

the capacitive load in the VCOM layer of the TFT LCDs

without the need for a series resistor.

♦ Operates Up To 20V

♦ 800mA Peak Output Current

♦ Settles to Within 0.1% of V

♦ Excellent Load Regulation

in Less than 2µs

OUT

♦ Thermal-Shutdown Protection

♦ Short-Circuit Protection to Both Rails

♦ Soft-Start to Reduce Inrush Current

The MAX9550/MAX9551/MAX9552 feature single, dual,

and quad channel VCOM amplifiers, respectively. The

MAX9550/MAX9551/MAX9552 can drive up to 800mA of

peak current per channel and operate up to 20V. The

devices feature soft-start to reduce inrush current, output

short-circuit protection, and thermal shutdown.

Ordering Information

PKG

TOP

PART

AMPS PIN-PACKAGE

The MAX9550 is available in a space-saving 5-pin thin

CODE MARK

SOT23 package, and an 8-pin µMAX package with an

MAX9550EZK+T

MAX9550EUA+*

MAX9551EUA+*

MAX9552EUD+*

5 Thin SOT23-5

8 µMAX-EP**

Z5-1

ADSG

AABA

—

exposed paddle. The MAX9551 is available in an 8-pin

µMAX package with an exposed paddle. The MAX9552

is available in a 14-pin TSSOP package. All devices are

specified over the -40°C to +85°C temperature range.

U8E-2

14 TSSOP-EP** U14E-3

—

Note: All devices specified over the -40°C to +85°C operating

temperature range.

Applications

TFT-LCD Panels

+Denotes lead-free package.

Instrument Control Voltage Sources

*Future product—contact factory for availability.

**EP = Exposed paddle.

Pin Configuration appears at end of data sheet.

Typical Operating Circuit

16V

SUPPLY

MAX9550

TFT LCD

IN+

IN-

REF

OUT

TFT-LCD

CAPACITANCE

GND

µMAX is a registered trademark of Maxim Integrated Products, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...12

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