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26 - 28 February 2019 // Nuremberg, Germany

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Exhibitors & Products embedded world 2019
Zoom product LOGO_TC78B015AFTG

TC78B015AFTG

LOGO_TC78B015AFTG

TC78B015AFTG

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TC78B015AFTG  is a new three-phase brushless motor drivers for 24V power supply applications. The new IC supports high-speed rotation of small fan motors and is ideally suited to home appliance and industrial equipment applications.

Ideally, cooling fans, such as those found in servers, combine minimum size with a high rotation speed thereby ensuring maximum cooling capability. Toshiba’s new driver IC is within small WQFN 36 (5mm x 5mm x 0.8mm) package that can be mounted on the limited PCB space found in small motors.

The new TC78B015AFTG also reduce the external component count by incorporating a one-sensor drive and current detection resistor-free system. One-sensor driving reduces the number of hall sensors from three to one and ensures more reliable motor operation than a comparable sensorless drive. The resistor-free current detection system can reduce the power supply rating and eliminate the large resistors previously required. All of these innovations contribute to reduced demand for space on wiring boards.

High speed rotation is achieved with a 150-degree commutation system. Rotation is faster and more stable than with a sine-wave commutation system, and vibration is lower than in a conventional 120-degree commutation system. Adoption of low on-resistance (upper + lower: 0.24Ω (typ.)) reduces heat generation due to the increased motor current found in high frequency drives.

The TC78B015AFTG requires a supply in the range 6V to 30V. It support output currents up to 3A and support Hall devices as well as offering a range of protection functions including thermal shutdown, overcurrent detection and motor lock detection.     

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