MAX31785ETL+T

Overview

The MAX31785ETL+T is a six-channel intelligent fan controller manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.7 V to 5.5 V and supports output voltages from 400 mV to 5.5 V. The device features an output current capability of 4 mA and draws a typical operating supply current of 3 mA. Designed for surface-mount installation, it is housed in a TQFN-EP-40 package with an exposed pad. The component functions reliably across an extended temperature range, supporting minimum operating temperatures of -40°C and maximum operating temperatures of +85°C.

Feature Summary

• Integrates six independent channels for comprehensive fan control management
• Supports wide input voltage ranges compatible with standard system rails
• Includes thermal protection mechanisms to ensure safe operation under fault conditions

Applications

• Motor controllers
• Motion control systems
• Ignition controllers
• Fan driver circuits

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm tape-and-reel packaging configuration. Ensure that the selected variant matches the required operational temperature range and package dimensions for your design. Cross-reference the active part number with current availability status through authorized distributors, as supply constraints may affect procurement timelines. Confirm RoHS compliance details prior to final ordering decisions.

Selection Notes

Evaluate the six-channel architecture against system requirements to determine if the integrated solution reduces component count compared to discrete alternatives. Consider the 4 mA output drive capability when sizing external components or connecting loads directly. Assess the TQFN-EP-40 footprint compatibility with existing PCB layouts. Verify that the 2.7 V to 5.5 V supply range aligns with the target power rail stability and noise margins.

Part Context

This component belongs to the MAX31785 series of intelligent fan controllers designed for managing multiple cooling fans in electronic systems. The ETL+T suffix indicates a specific tape-and-reel packaging option intended for automated assembly processes. As part of the Maxim Integrated portfolio now under Analog Devices, this device leverages established thermal management technologies for reliable high-volume manufacturing applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.