Datasheet > MAX25221

MAX25221

更新时间： 2024-10-29 14:57:27

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
56页	890K
描述
Automotive 4-Channel TFT-LCD Power Supplies with VCOM Buffer

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MAX25221 数据手册

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MAX25220/MAX25221/

MAX25221B/MAX25221C

Automotive 4-Channel TFT-LCD Power

Supplies with VCOM Buffer

General Description

Benefits and Features

The

MAX25220/MAX25221/MAX25221B/MAX25221C

● High Integration

are 4-channel TFT-LCD power ICs that provide symmetri-

cal positive AVDD and negative NAVDD supplies as well

• Synchronous Boost Provides AVDD of 4.2V to

10.5V at up to 200mA

as VG

and VG

gate supplies. In addition, a VCOM

• NAVDD Inverter Output at up to -200mA

OFF

buffer with output voltage range above and below ground

and a temperature measurement block are integrated

(MAX25221/B/C).

• 15mA VG

Output (7.6V to 20.2V) from 3x

Regulated Charge Pump

• VG

(-18.2V to -5.6V) from Regulated Charge

OFF

Pump at up to -15mA (Charge-Pump Doubler)

• Controlled Sequencing during Power-On and

Power-Off of All Rails

• VCOM Output Range +1V to -2.49V in 6.83mV

Steps (MAX25221/B/C)

• NTC Input for Temperature Measurement/

Compensation (MAX25221/B/C)

The devices contain non-volatile memory so that the val-

ues of all outputs can be calibrated for the lifetime of the

device (maximum five times).

Programming is carried out using the built-in I C interface,

which can also be used to read back diagnostic informa-

tion. A stand-alone mode is also available.

The temperature sensor interface block measures the

temperature optionally, allowing the VCOM output voltage

to be adjusted depending on the measured temperature.

● Low EMI

• 420kHz/2.1MHz Switching Frequency with Spread

Spectrum

The

MAX25220/MAX25221/MAX25221B/MAX25221C

● I C Control/Diagnostic Interface with FLTB (Interrupt)

are available in a TQFN package and operate in the -40 to

+125°C temperature range.

Output

• UV Diagnostics on All Outputs

● Versatile

Applications

● Infotainment Displays

● Central Information Displays

● Instrument Clusters

• Non-Volatile Output Voltage Settings on AVDD/

NAVDD, VG , VG

• Supports Stand-Alone Operation Mode after

Programming

, VCOM, and Sequencing

OFF

• Compact 5mm x 5mm TQFN32 Package

● AEC-Q100 Grade 1

Ordering Information appears at end of data sheet.

19-100803; Rev 5; 8/21

12 3 4 5 6 7...56

中文翻译

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与MAX25221相关器件

型号	品牌	获取价格	描述	数据表
MAX25221ATJ	MAXIM	获取价格	Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer
MAX25221ATV	MAXIM	获取价格	Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer
MAX25221ATVY	MAXIM	获取价格	Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer
MAX25221B	MAXIM	获取价格	Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer
MAX25221B	ADI	获取价格	Automotive 4-Channel TFT-LCD Power Supplies with VCOM Buffer
MAX25221BATJ	MAXIM	获取价格	Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer
MAX25221BATV	MAXIM	获取价格	Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer
MAX25221C	ADI	获取价格	Automotive 4-Channel TFT-LCD Power Supplies with VCOM Buffer
MAX25222	ADI	获取价格	Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer and ASIL B Features
MAX25222C	ADI	获取价格	集成VCOM缓冲器和ASIL B特性的汽车级4通道TFT-LCD电源

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