MAX1512ETA-T

更新时间： 2024-11-04 13:10:23

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MAX1512ETA-T 数据手册

19-2911 Rev 2; 8/04

EEPROM-Programmable TFT VCOM Calibrator

General Description

Features

The MAX1512 is a programmable VCOM-adjustment

solution for thin-film transistor (TFT) liquid-crystal displays

(LCDs). The MAX1512 simplifies the labor-intensive

VCOM-adjustment process and replaces mechanical

potentiometers, which significantly reduces labor costs,

increases reliability, and enables automation.

♦ 7-Bit Adjustable Sink-Current Output

♦ Resistor-Adjustable Full-Scale Range

♦ Guaranteed Monotonic Output Over Operating

Range

♦ Single-Wire Adjustment and Programming*

♦ EEPROM Stores VCOM Setting

The MAX1512 attaches to an external resistive voltage-

divider and sinks a programmable current to set the

VCOM voltage level. An internal 7-bit digital-to-analog

converter (DAC) controls the sink current. The DAC is

ratiometric relative to AVDD and is guaranteed to be

monotonic over all operating conditions. This VCOM

calibrator IC includes an EEPROM to store the desired

VCOM voltage level. The EEPROM can be programmed

repeatedly, giving TFT LCD manufacturers the flexibility

to calibrate the display panel as many times as the

manufacturing process requires.

♦ Interface Enable/Disable Control (CE)

♦ 2.6V to 3.6V Logic Supply-Voltage Operating

Range (V

)

♦ 4.5V to 20V Analog Supply-Voltage Range (V

)

AVDD

♦ V

UVLO Protection

♦ 8-Pin 3mm x 3mm TDFN (0.8mm max)

The IC features a single-wire interface between the

LCD panel and the programming circuit. The single-

wire interface delivers both programming power and

DAC-adjustment commands to minimize changes to

panel connectors and production equipment. The

MAX1512 is available in an 8-pin 3mm x 3mm TDFN

package. A complete evaluation kit is available to sim-

plify evaluation and production development.

Ordering Information

PART

TEMP RANGE PIN-PACKAGE

MAX1512ETA

-40°C to +85°C 8 TDFN 3mm x 3mm

Applications

LCD Panels

Notebook Computers

Monitors

Typical Operating Circuit

LCD TVs

Pin Configuration

AVDD

TOP VIEW

OUT

AVDD

N.C.

SET

MAX1512

OUT

SET

MAX1512

CTL

VCOM

GND

CTL

TDFN

GND

SET

*Patent Pending.

________________________________________________________________ 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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与MAX1512ETA-T相关器件

型号	品牌	获取价格	描述	数据表
MAX1513	MAXIM	获取价格	TFT-LCD Power-Supply Controllers
MAX1513\|MAX1514	MAXIM	获取价格	TFT-LCD Power-Supply Controllers
MAX1513ETP	MAXIM	获取价格	TFT-LCD Power-Supply Controllers
MAX1513ETP	ROCHESTER	获取价格	SWITCHING CONTROLLER, 1725kHz SWITCHING FREQ-MAX, PQCC20, 4 X 4 MM, 0.80 MM HEIGHT, MO-220
MAX1513ETP+	ROCHESTER	获取价格	SWITCHING CONTROLLER, 1725kHz SWITCHING FREQ-MAX, PQCC20, 4 X 4 MM, 0.80 MM HEIGHT, MO-220
MAX1513ETP+T	MAXIM	获取价格	Switching Controller, Current-mode, 1725kHz Switching Freq-Max, BICMOS, PQCC20, 4 X 4 MM,
MAX1513ETP-T	MAXIM	获取价格	Switching Controller, Current-mode, 1725kHz Switching Freq-Max, BICMOS, PQCC20, 4 X 4 MM,
MAX1514	MAXIM	获取价格	TFT-LCD Power-Supply Controllers
MAX1514ETP	MAXIM	获取价格	TFT-LCD Power-Supply Controllers
MAX1514ETP	ROCHESTER	获取价格	SWITCHING CONTROLLER, 1725kHz SWITCHING FREQ-MAX, PQCC20, 4 X 4 MM, 0.80 MM HEIGHT, MO-220

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