Toshiba 25V 3-Phase Sinusoidal BLDC Motor Controller

Toshiba's TC78B043FNG and TC78B043FTG devices incorporate a high-resolution sine-wave drive and support sine-wave start-up, which helps to reduce vibration and noise. According to the characteristics and usage of the motor, various speed settings can be programmed into the built-in NVM via the SPI Interface. This capability allows high-efficiency motor control by adjusting parameters such as lead angle control.

A key difference between the two devices is that the NVM in the TC78B043FNG comes pre-programmed with the initial speed profile settings for common motors. This negates the need to manually program or configure it further before using it, accelerating development time. Furthermore, the TC78B043FNG has four additional input terminals allowing a more detailed adjustment of motor control parameters without using the SPI interface, such as motor lead angle control.

Operating from a supply ranging from 6V to 24V, these motor controllers perform over a wide temperature range from -40°C to +115°C. They also integrate thermal shutdown, under voltage lockout, current limiter, over current detection, and lock protection. Both devices include built-in 5V regulators, providing a stable supply for external components such as Hall sensors or logic circuits, reducing the need for an additional voltage regulator in the system design.

Key features

• High-resolution sine-wave PWM drive for smooth motor operation with low vibration and noise
• Low-noise motor operation through sine-wave startup control
• High-efficiency motor control through parameter adjustments such as lead angle control
• Built-in non-volatile memory (NVM) for storing motor control parameters
• Pre-programmed initial speed profile settings accelerating development time (TC78B043FNG only)
• Comprehensive protection functions: thermal shutdown, undervoltage lockout, current limiter, overcurrent detection, and lock protection
• Wide operation voltage range from 6V to 23V
• Compact packages: Available in HTSSOP28 and WQFN20 packages with enhanced thermal performance

Applications

• Air conditioners
• Air purifiers and air cleaners
• Water heaters
• Ventilation fans
• Home appliances
• Healthcare devices (e.g. wheelchairs)
• Industrial equipment