NCT3942S TR

Overview

The NCT3942S TR is a linear fan driver manufactured by Nuvoton Technology Corporation, designed for 12V DC fan applications. It provides an output current of 500 mA and operates with a supply voltage range from 8 V to 17.6 V. The device features a quiescent current of 3 mA and functions within a temperature range of -20°C to +85°C. It is housed in an SOP-8-EP surface-mount package and is supplied in tape and reel formats.

Feature Summary

• Linear regulation architecture for direct DC fan control
• Integrated tachometer signal interface capability
• Surface-mount packaging for automated assembly

Applications

• Computer cooling systems
• Server chassis ventilation
• Industrial equipment thermal management

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration. Confirm the manufacturer designation as Nuvoton Technology Corporation. Ensure the SOP-8-EP package type matches design requirements. Validate operational temperature ranges against system constraints.

Selection Notes

Select this component for applications requiring linear fan speed control with moderate current demands. Consider the 500 mA output limit when sizing for specific fan models. Evaluate the 8 V to 17.6 V input range compatibility with system power rails. Assess thermal performance within the specified operating temperature envelope.

Part Context

This part belongs to Nuvoton's family of linear fan drivers, which includes variants like the NCT3940S-A and NCT3941S. These components are categorized under PMIC motor drivers and controllers. The series targets efficient thermal management solutions for electronic devices requiring reliable fan operation.

Replacement Considerations

Publicly confirmed substitute part numbers for the NCT3942S TR are not available in the provided documentation. Cross-reference with similar linear fan drivers only if electrical parameters and pinouts are verified through official datasheets.