MAX1978ETM+

Overview

The MAX1978ETM+ is an integrated temperature controller designed for Peltier modules and thermoelectric coolers. It operates on a supply voltage range of 3V to 5.5V and functions within a temperature range of -40°C to +85°C. The device is housed in a 48-TQFN (7x7) package with exposed pad. Key electrical characteristics include a dual bipolar output current capability of ±3A, a typical power dissipation of 2.1W, and a reference voltage of 1.024V.

Feature Summary

• Integrates internal power MOSFETs to eliminate the need for external FET circuitry.
• Includes precision integral and chopper-stabilized operational amplifiers for accurate control.
• Features independent heating and cooling current limits with direct TEC current surge elimination.

Applications

• Peltier module temperature regulation
• Thermoelectric cooler (TEC) control systems

Procurement Notes

Verify component authenticity through authorized Analog Devices channels due to restricted supply status. Confirm package integrity and pin alignment against the 48-TQFN specification before integration. Ensure thermal management solutions align with the 2.1W power dissipation rating to maintain reliability within the specified operating temperature range.

Selection Notes

Select this component when a compact, single-chip solution for precise temperature stabilization is required. It is suitable for applications demanding high resolution and low power consumption without external power switching components. Consider the ±3A output current limit and 48-pin footprint constraints during PCB layout design.

Part Context

This part belongs to the Maxim Integrated line of specialized power management ICs, specifically targeting integrated temperature controllers. It represents a consolidated approach to thermoelectric cooling by combining control logic, amplification, and power driving stages into a single surface-mount device.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing thermal designs if considering alternative PMICs from the same manufacturer family.