TC78B042FTG,EL

Overview

The TC78B042FTG,EL is a three-phase brushless DC motor controller manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 6V to 16.5V and supports load voltages between 4.5V and 5.3V. The device features a maximum output current of 2mA and a quiescent supply current of 5mA. It utilizes a PWM interface for speed control and employs a half-bridge pre-driver output configuration. The component is housed in a 32-VQFN (5x5) package with exposed pad for surface mount installation. It functions reliably across an extended temperature range from -40°C to +115°C.

Feature Summary

• Integrates automatic phase adjustment technology to eliminate manual phase tuning requirements
• Supports efficient operation across wide motor speed ranges using sinusoidal drive methods
• Provides dedicated speed control functionality via pulse width modulation interface

Applications

• Fan controllers
• Air conditioning systems
• Microcontroller-based embedded systems

Procurement Notes

Verify the specific suffix EL against official Toshiba documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure compatibility with the target PCB footprint for the 32-VQFN package. Confirm that the required output current aligns with the 2mA specification for the intended motor driver stage. Check RoHS compliance status if restricted substances are mandated by the end product regulations.

Selection Notes

Select this component when designing systems requiring automatic phase alignment for brushless DC motors without external microcontroller intervention for commutation timing. Consider the low output current capability suitable for driving external smart power devices rather than direct high-current loads. Evaluate the thermal performance within the 32-VQFN package against the expected ambient operating conditions up to 115°C.

Part Context

This part belongs to the TC78B042 series of brushless DC motor controllers designed by Toshiba. It shares architectural similarities with the TC78B041FNG but differs in package type, utilizing VQFN32 instead of SSOP30. The series emphasizes ease of integration into various voltage and current capacity motor driver stages through its integrated automatic phase control capabilities.

Replacement Considerations

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