EMC2103-4-AP-TR

Thermal Management Overview

The EMC2103-4-AP-TR is an SMBus compliant fan controller featuring up to three external and one internal temperature channel. It supports RPM-based fan speed control with a look-up table for temperature-driven adjustments. The device includes hardware programmable thermal shutdown, two dedicated GPIOs, and EEPROM load capability. It operates on a 3.3V supply and is housed in a 16-pin QFN package.

Thermal Management Feature Summary

• RPM-based fan control algorithm with high accuracy across a wide speed range
• Hardware programmable thermal shutdown for critical circuitry protection
• Temperature look-up table enabling automatic fan response based on measured data
• Support for multiple external diode types including CPU substrate models

Thermal Management Applications

• Notebook Computers
• Projectors
• Graphics Cards
• Industrial and Networking Equipment

Thermal Management Procurement Notes

Verify the specific suffix AP-TR indicates enabled EEPROM loading compared to disabled variants. Confirm the 16-pin QFN package matches the target PCB footprint. Ensure SMBus interface compatibility with the host system controller before integration.

Thermal Management Selection Notes

Select this variant over the -2 version if onboard configuration storage via EEPROM is required. The -4 suffix specifically enables the EEPROM loader feature while retaining the dual GPIO pins found in the -2 model. Verify that the application requires the additional external temperature channels supported by the 16-pin package.

Thermal Management Part Context

This component belongs to the Microchip EMC2103 family of fan controllers. It shares core functionality with the EMC2103-2 but differs in configuration storage capabilities. The series is designed for systems requiring precise thermal management through both software-controlled algorithms and hardware safety limits.

Thermal Management FAQ

What distinguishes the EMC2103-4 from the EMC2103-2?

The primary difference is that the EMC2103-4 has the EEPROM Load feature enabled, allowing for configuration storage, whereas the EMC2103-2 has this feature disabled.

Does the EMC2103-4 support CPU substrate diodes?

Yes, the device automatically detects and supports CPUs requiring BJT or Transistor models, including those used in modern processors.