参数资料
| 型号： | MAX8738EUA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC CALIBR TFT VCOM 8UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 视频滤波器 |
| 应用： | LCD 显示器 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 带卷 (TR) |
General Description
The MAX8738 is an I2C-programmable VCOM-adjust-
ment solution for thin-film transistor (TFT) liquid-crystal
displays (LCDs). The MAX8738 simplifies the labor-inten-
sive VCOM-adjustment process and replaces mechani-
cal potentiometers, which significantly reduces labor
costs, increases reliability, and enables automation.
The MAX8738 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.
The MAX8738 features a 2-wire I2C interface for DAC-
adjustment commands and EEPROM programming.
The interface utilizes the existing I2C bus on the LCD
panel connector so no additional panel connector pins
are required. The MAX1512 is a similar product with a
1-wire interface and is recommended for applications
with no existing I2C interface.
The MAX8738 is available in an 8-pin MAX package.
A complete evaluation kit is available to simplify evalua-
tion and production development.
Applications
LCD Panels
Notebook Computers
Display Products
LCD TVs
Features
7-Bit Adjustable Sink-Current Output
Resistor-Adjustable, Full-Scale Range
Guaranteed Monotonic Output Over Operating
Range
2-Wire I2C Interface
EEPROM Stores VCOM Setting
4.5V to 20V Analog Supply Voltage Range
(VAVDD)
60A (max) AVDD Supply Current
16.1V to 28V EEPROM Programming Supply
Voltage Range (VHV)
<1A HV Supply Current (Not in Program Mode)
8-Pin MAX
MAX8738
EEPROM-Programmable TFT VCOM
Calibrator with I2C Interface
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-3624; Rev 0; 3/05
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.
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-PACKAGE
MAX8738EUA
-40
oC to +85oC
8 MAX
MAX8738EUA+
-40
oC to +85oC
8 MAX
SDA
HV
GND
1
2
8
7
SET
SCL
VDD
OUT
μMAX
TOP VIEW
3
4
6
5
MAX8738
AVDD
Pin Configuration
+Denotes lead-free package.
MAX is a registered trademark of Maxim Integrated Products, Inc.
MAX8738
SDA
SCL
VDD
AVDD
RSET
R2
R1
VCOM
SET
GND
AVDD
OUT
VGON
HV
+3.3V
I2C
BUS
Typical Operating Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8738EVKIT | 功能描述:LCD 驱动器 MAX8738 Eval Kit RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX8739ETP | 功能描述:LCD 驱动器 RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX8739ETP+ | 功能描述:LCD 驱动器 TFT LCD DC/DC Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX8739ETP+T | 功能描述:LCD 驱动器 TFT LCD DC/DC Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX8739ETP-T | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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