TC646VOA

Overview

The TC646VOA is a switch-mode fan speed controller designed for brushless DC fans, manufactured by Microchip Technology. It operates within a supply voltage range of 3 V to 5.5 V and features a maximum operating current of 1 mA. The device supports temperature-proportional fan speed control via pulse width modulation (PWM) and includes FanSense fault detection circuits. It is housed in an SOIC-8 surface-mount package and functions across a temperature range of 0°C to +85°C.

Feature Summary

• Temperature proportional fan speed control using PWM for acoustic management
• FanSense technology for detecting fan failure and aiding system testing
• Shutdown mode capability for energy-efficient green systems

Applications

• Brushless DC fan speed regulation
• Thermal management in electronic equipment
• System protection against fan failure

Procurement Notes

Verify the specific suffix 'VOA' corresponds to the SOIC-8 package variant when sourcing. Confirm RoHS compliance status through official documentation prior to integration. Ensure thermal operating limits align with the target application environment specifications.

Selection Notes

Select this component for applications requiring low-power PWM fan control with integrated fault detection. Consider the SOIC-8 package constraints for PCB layout. Verify that the input thermistor interface matches the system's temperature sensing requirements.

Part Context

This part belongs to the TC646 series of fan controllers from Microchip Technology. It is categorized under Motor / Motion / Ignition Controllers & Drivers and falls within the PMIC - Power Management ICs subcategory. The device is distinct from other variants like TC646EUA which utilize different packages.

Replacement Considerations

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