MAX1978ETM+T

Overview

The MAX1978ETM+T is a specialized integrated temperature controller designed for Peltier modules and thermoelectric coolers (TEC). It operates within a supply voltage range of 3V to 5.5V and supports an output voltage range from -4.3V to +4.3V. The device is housed in a 48-TQFN package with dimensions of 7x7 mm, featuring an exposed pad for thermal management. It functions effectively across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates power MOSFETs on-chip, eliminating the need for external field-effect transistors.
• Includes precision integral and chopper-stabilized operational amplifiers for accurate control.
• Provides independent heating and cooling current limits to ensure safe operation.
• Features TEC current monitoring and dual-polarity alarm capabilities for over-temperature and under-temperature conditions.

Applications

• Peltier module control
• Thermoelectric cooler (TEC) regulation

Procurement Notes

Verify component authenticity through authorized Analog Devices channels. Confirm RoHS compliance status and check for lead-free specifications. Ensure the 48-TQFN package matches PCB footprint requirements. Validate that the specific suffix aligns with reel packaging standards. Cross-reference datasheet revisions to confirm functional equivalence before integration.

Selection Notes

Select this component when compact circuit area below 0.93 square inches is required. Choose it for applications needing height constraints under 3 millimeters. Consider it for designs requiring direct TEC current control to eliminate surge issues. Evaluate its suitability for systems demanding high temperature stability and precise thermal regulation.

Part Context

This part belongs to the Maxim Integrated portfolio, now part of Analog Devices Inc. It falls under the category of specialized power management ICs. The device is specifically engineered for thermal management applications involving active cooling elements. It represents a solution for miniaturized electronic systems requiring precise temperature control.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing thermal control loops if considering alternative controllers. Check pinout and electrical specifications against potential replacements to ensure system integrity.