TMP816PWR

Motor Drivers, Controllers Overview

The TMP816PWR is a single-phase bipolar variable-speed fan-motor predriver manufactured by Texas Instruments. It operates with an external PNP-NMOS power transistor pair to drive full-wave motors. The device supports separately-excited upper direct PWM control and includes soft-start functionality. It features an adjustable current limit threshold for protection. The component is housed in a 20-pin TSSOP package and is rated for an industrial temperature range of -40°C to 85°C, with a maximum supply voltage of 18V.

Motor Drivers, Controllers Feature Summary

• Predriver designed specifically for single-phase full-wave drive applications using external PNP-NMOS transistors
• Incorporates soft-start capability to manage initial motor startup conditions
• Supports separately-excited upper direct PWM control architecture
• Includes adjustable current limit threshold for overcurrent protection

Motor Drivers, Controllers Applications

• Variable-speed fan motor control systems
• Single-phase full-wave brushless DC motor drives
• Industrial cooling fan controllers

Motor Drivers, Controllers Procurement Notes

Verify the specific suffix 'PWR' corresponds to the tape-and-reel packaging format when ordering. Confirm that the 20-TSSOP package dimensions match the target PCB footprint. Ensure the design accommodates the required external PNP-NMOS power transistors as this IC functions strictly as a predriver. Check that the operating environment remains within the specified -40°C to 85°C industrial temperature range.

Motor Drivers, Controllers Selection Notes

Select this component when designing a cost-effective, high-efficiency drive for single-phase full-wave fans. It is suitable for applications requiring separate excitation for the upper PWM leg. Consider the need for external power devices, as the TMP816PWR does not integrate high-side or low-side output drivers directly. Evaluate if the adjustable current limit meets the specific motor protection requirements.

Motor Drivers, Controllers Part Context

This part belongs to Texas Instruments' family of motor driver and controller integrated circuits. It serves as a specialized predriver rather than a complete half-bridge or full-bridge driver. The device complements other TI motor control solutions by providing dedicated logic for single-phase applications, reducing system complexity compared to general-purpose gate drivers.

Motor Drivers, Controllers Replacement Considerations

Direct substitutes are limited due to the specific single-phase full-wave architecture. Verify compatibility with existing external PNP-NMOS configurations. No public confirmed substitute part numbers are available in standard catalogs.