TC649BEUATR

Overview

The TC649BEUATR is a PWM fan controller and driver manufactured by Microchip Technology, designed for precise thermal management in electronic systems. It operates within a supply voltage range of 3 V to 5.5 V and features a low operating supply current of 400 uA. The device supports an output current of 5 mA and functions at a working frequency of 30 Hz. It is housed in an MSOP-8 surface-mount package and is rated for operation across a temperature range of -40°C to +85°C. This component integrates shutdown and fault detection capabilities to ensure reliable motor control.

Feature Summary

• Integrates PWM fan control with dedicated shutdown and fault detection mechanisms for enhanced system reliability.
• Features a low-power design with minimal operating supply current suitable for energy-efficient applications.
• Provides robust thermal protection through integrated over-temperature alert functionality.

Applications

• PWM Fan Controllers
• Motor / Motion / Ignition Controllers & Drivers
• Thermal Management Systems

Procurement Notes

Verify the specific suffix 'EUATR' corresponds to the MSOP-8 reel packaging configuration as documented. Confirm that the shutdown and fault detection features align with the required system safety protocols. Ensure the operating temperature range meets the environmental specifications of the target application. Cross-reference the datasheet for any recent product change notifications or end-of-life status updates prior to finalizing procurement plans.

Selection Notes

Select this component when a compact, low-current fan controller with integrated fault monitoring is required. The MSOP-8 package offers a small footprint for space-constrained designs. Consider the 3 V to 5.5 V input range compatibility with standard logic levels. Evaluate the 400 uA quiescent current against power budget constraints. Compare against similar models like the TC647B if restart features are needed instead of simple shutdown.

Part Context

The TC649 series belongs to Microchip's FanSense family of fan controllers. These devices are categorized under PMIC and Motor Drivers. The TC649BEUATR specifically denotes the ATR variant in MSOP-8 packaging. It shares functional similarities with other TC64x parts but differs in specific interface options and package types. The series is designed for efficient cooling control in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include TC649EUATR and TC649VUA. Verify pinout compatibility and feature parity, particularly regarding shutdown versus restart behaviors. Check package differences between MSOP-8 and SOIC variants if board layout changes are permissible.