MAX1968 - Maxim

MAX1968 Power Drivers for Peltier TEC Modules

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 .

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
• High-Efficiency Switch-Mode Design
• On-Chip Power MOSFETs Improve Efficiency While Reducing External Components
• 500kHz/1MHz Switching Frequency
• Choose from ±3A Output Cur.