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MAX1968 - Power Drivers for Peltier TEC Modules

Description

The MAX1968/MAX1969 are highly integrated and costeffective, high-efficiency, switch-mode drivers for Peltier thermoelectric cooler (TEC) modules.

Both devices utilize direct current control to eliminate current surges in the TEC.

Features

  • 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.
  • ITEC Output Provides Proportional Voltage to TEC Current for Monitoring.
  • Hig.

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Datasheet preview – MAX1968

Datasheet Details

Part number MAX1968
Manufacturer Maxim Integrated
File Size 276.98 KB
Description Power Drivers for Peltier TEC Modules
Datasheet download datasheet MAX1968 Datasheet
Additional preview pages of the MAX1968 datasheet.

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Full PDF Text Transcription

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MAX1968/MAX1969 EVALUATION KIT AVAILABLE Power Drivers for Peltier TEC Modules General Description The MAX1968/MAX1969 are highly integrated and costeffective, 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 switching frequency and a unique ripple cancellation scheme reduce component size and noise. The MAX1968 operates from a single supply and provides 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.
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