TC78B025FTG,EL

Overview

The TC78B025FTG,EL is a three-phase brushless DC motor driver IC manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 4.5V to 16V and delivers an output current of 3.5A. The device utilizes CMOS technology and accepts PWM interface signals for control. It is housed in a 24-VQFN package with dimensions of 4x4mm. The component supports a wide operating temperature range from -40°C to +105°C and features integrated half-bridge outputs.

Feature Summary

• Integrates Intelligent Phase Control technology for high-efficiency driving of three-phase BLDC motors using Hall sensors.
• Includes closed-loop speed control functionality to maintain stable rotation speeds under varying load conditions.
• Features position compensation capabilities that allow reduction of Hall sensor requirements from three to one.

Applications

• Cooling fans for data center servers
• Brushless DC motor control systems
• Fan motor drivers requiring efficient operation

Procurement Notes

Verify the specific suffix EL indicates reel packaging when sourcing components. Confirm RoHS3 compliance status through official Toshiba documentation prior to integration. Ensure the 24-VQFN footprint matches the target PCB layout design. Cross-reference the manufacturer part number TC78B025FTG,EL against authorized distributor lists to guarantee authenticity and traceability.

Selection Notes

Select this component for applications requiring efficient three-phase BLDC motor control with reduced Hall sensor counts. The integrated closed-loop speed control suits environments with variable loads. Consider the 4.5V to 16V supply range and 3.5A output capability against system power constraints. The 24-VQFN package is suitable for compact surface-mount designs.

Part Context

This IC belongs to the TC78B025 series developed by Toshiba Electronic Devices & Storage Corporation. It was commercialized in April 2018 to address efficiency demands in data center cooling. The series incorporates Intelligent Phase Control technology to optimize motor performance while minimizing component count and installation space.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Toshiba technical support or official datasheets for direct replacements or pin-compatible alternatives.

FAQ

How does the TC78B025FTG,EL reduce Hall sensor requirements?

It incorporates a Hall sensor position compensation function that enables the use of only one Hall sensor instead of the standard three, thereby saving installation space.

What control mechanism ensures stable motor speed?

The IC features a closed-loop speed control function that maintains stable rotation speed regardless of load conditions.