TC648BEOA

Overview

The TC648BEOA is a PWM fan speed controller from Microchip Technology's FanSense series, designed for single-fan applications. It operates within a supply voltage range of 3V to 5.5V and supports a maximum operating current of 0.4mA. The device features system shutdown capability but lacks over-temperature alert functionality. It utilizes a surface-mount 8-SOP package with dimensions of 4.9mm length, 3.9mm width, and a minimum height of 1.25mm. The component functions effectively across an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates PWM control logic for precise fan speed regulation
• Includes system shutdown protection mechanisms
• Optimized for low power consumption in single-fan setups

Applications

• Computer cooling systems
• Server chassis ventilation
• Consumer electronics thermal management

Procurement Notes

Verify the specific suffix 'EOA' against official Microchip documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status as per the latest datasheet revision. Check for End-of-Life notices or alternative part recommendations directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a dedicated PWM controller for a single fan is required with integrated shutdown features. Ensure the design accommodates the 8-SOP footprint and 3V-5.5V supply constraints. Consider the absence of over-temperature alerts if thermal monitoring is critical to the application safety requirements.

Part Context

Part of the TC648 family, which includes variants like TC648BEUA and TC648VOA. These controllers share core FanSense technology but differ in packaging, temperature ranges, and specific feature sets such as over-temperature alerts. The TC648BEOA specifically targets cost-sensitive applications requiring basic PWM control and shutdown.

Replacement Considerations

TC648BEUA is a documented substitute within the same family.