Datasheet > MAX1968

MAX1968

更新时间： 2024-12-01 14:57:35

品牌	Logo	应用领域
亚德诺 - ADI		驱动驱动器
页数	文件大小	规格书
16页	289K
描述
Peltier TEC模块电源驱动器

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中文翻译

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MAX1968 数据手册

EVALUATION KIT AVAILABLE

Power Drivers for Peltier TEC Modules

MAX1968/MAX1969

General Description

Benefits and Features

The MAX1968/MAX1969 are highly integrated and cost-

effective, high-efficiency, switch-mode drivers for Peltier

thermoelectric cooler (TEC) modules. Both devices

utilize direct current control to eliminate current surges

in the TEC. On-chip FETs minimize external components

while providing high efficiency. A 500kHz/1MHz switch-

ing frequency and a unique ripple cancellation scheme

reduce component size and noise.

• High Accuracy and Adjustability Improves System

Performance by Optimizing TEC Operation

• Direct Current Control Prevents TEC Current Surges

• Ripple Cancellation for Low Noise

• No Dead-Zone or Hunting at Low-Output Current

• 1% Accurate Voltage Reference

• Adjustable TEC Voltage Limit

• Separately Adjustable Heating and Cooling Current

Limits

The MAX1968 operates from a single supply and pro-

vides bipolar 3A output by biasing the TEC between

the outputs of two synchronous buck regulators.

Bipolar operation allows for temperature control without

“dead zones” or other nonlinearities at low load

currents. This arrangement ensures that the control

system does not hunt when the set point is very close

to the natural operating point, requiring a small amount

of heating or cooling. An analog control signal precisely

sets the TEC current. The MAX1969 provides unipolar

output up to 6A. Reliability is optimized with settable

limits for both TEC voltage and current, with indepen-

dently set limits for heating and cooling current. An

analog output also monitors TEC current.

• ITEC Output Provides Proportional Voltage to TEC

Current for Monitoring

• High-Efficiency Switch-Mode Design

• On-Chip Power MOSFETs Improve Efficiency While

Reducing External Components

• 500kHz/1MHz Switching Frequency

• Choose from ±±A Output Current ꢀMAꢁ1ꢂ968 or 9A

Output Current ꢀMAꢁ1ꢂ9ꢂ8

• Thermally Enhanced TSSOP-EP Package Minimizes

Operating Junction Temperature

Ordering Information

The MAX1968/MAX1969 are available in a low-profile

28-pin TSSOP-EP package and is specified over the

-40°C to +85°C temperature range. The thermally

enhanced TSSOP-EP package with exposed metal pad

minimizes operating junction temperature. An evalua-

tion kit is available to speed designs.

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

28 TSSOP-EP*

MAX1968EUI

MAX1969EUI

*EP = Exposed pad.

Applications

Typical Operating Circuit

Fiber Optic Laser Modules

WDM, DWDM Laser Diode Temperature Control

Fiber Optic Network Equipment

EDFA Optical Amplifiers

Telecom Fiber Interfaces

ATE

3V TO

5.5V

TEC

CURRENT-

CONTROL

SIGNAL

CTLI

PV 2

Biotech Lab Equipment

PGND1

PGND2

COMP

MAX1968

OS1

LX1

LX2

OS2

GND

TEC

Pin Configuration and Functional Diagram appear at end

of data sheet.

19-2447; Rev 3; 5/15

12 3 4 5 6 7...16

中文翻译

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与MAX1968相关器件

型号	品牌	获取价格	描述	数据表
MAX1968_07	MAXIM	获取价格	Power Drivers for Peltier TEC Modules
MAX1968EUI	MAXIM	获取价格	Power Drivers for Peltier TEC Modules
MAX1968EUI+	MAXIM	获取价格	Switching Regulator, Current-mode, 4.5A, 1000kHz Switching Freq-Max, BICMOS, PDSO28, 4.40
MAX1968EUI-T	MAXIM	获取价格	Switching Regulator, Current-mode, 4.5A, 1000kHz Switching Freq-Max, BICMOS, PDSO28, 4.40
MAX1968-MAX1969	MAXIM	获取价格	Power Drivers for Peltier TEC Modules
MAX1969	MAXIM	获取价格	Power Drivers for Peltier TEC Modules
MAX1969	ADI	获取价格	Peltier TEC模块电源驱动器
MAX19692	MAXIM	获取价格	On-Board 1.25V Reference Circuitry
MAX19692	ADI	获取价格	12位、2.3Gsps多奈奎斯特频率DAC
MAX19692EVKIT	MAXIM	获取价格	On-Board 1.25V Reference Circuitry

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