TC649EUA

Overview

The TC649EUA is a PWM fan controller manufactured by Microchip Technology, designed for precise speed regulation of cooling fans. It operates within a supply voltage range of 3 V to 5.5 V and draws a typical quiescent current of 400 uA. The device supports an operating temperature range from -40°C to +85°C and is housed in an 8-lead MSOP package suitable for surface mount applications.

Feature Summary

• Integrates shutdown and fault detection capabilities for enhanced system reliability
• Provides pulse-width modulation control for accurate fan speed management

Applications

• Computer cooling systems
• Server and data center thermal management
• Industrial equipment ventilation

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape-and-reel specifications. Confirm moisture sensitivity level handling requirements prior to assembly. Ensure compatibility with existing PCB footprint dimensions for the MSOP-8 package. Validate electrical parameters against the latest datasheet revision.

Selection Notes

Select this component when low power consumption and integrated fault protection are required for fan control. Compare against other TC649 variants to determine if different packaging or temperature ranges better suit the design constraints. Consider the 400 uA quiescent current impact on overall system efficiency.

Part Context

This part belongs to the TC649 series of fan controllers from Microchip Technology. The series focuses on providing efficient motor drive solutions with built-in diagnostic features. The EUA suffix typically denotes a specific package configuration within this product line.

Replacement Considerations

Consult official substitution lists for verified alternatives. Cross-reference pinouts and electrical characteristics before replacing.