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MCU packs built-in pre-driver for motor control

02 Dec 2015

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Toshiba Corp. has introduced a MCU as the latest addition to its ARM Cortex-M3-based TX03 series. According to the company, the TMPM37AFSQG is the world's smallest vector control MCU to incorporate an original coprocessor, the "Vector Engine Plus," and a pre-driver to implement brushless DC motor control.


The TMPM37AFSQG contains a pre-driver that directly drives the MOSFET in small applications, including small fan motors. A single-power supply is also feasible since the power of the MCU is internally supplied from the power of the pre-driver.

Furthermore, peripheral parts, such as an op-amp essential for current detection using shunt resistors and a comparator for over-current detection, have been incorporated in a small package (QFN32 5mm x 5mm), minimising the mounting space.

The IC can perform highly efficient vector control, realising low vibration, low noise motor control.

The TMPM37AFSQG features an ARM Cortex-M3 core, up to 40MHz operation; complementary PWM, minimum unit: 25ns; Vector Engine Plus (VE+) coprocessor; single-power supply; built-in pre-driver for direct drive of MOSFET for three-phase PWM output; and a 12bit ADC, op-amp and over-current detection circuit

Geared for small motors, server fans, small cooling fans, vent fans, electric fans, ceiling fans, pumps and toys, the TMPM37AFSQG is available in a VQFN32 (5mm x 5mm, 0.5mm pitch) package. Sample shipments will start in the middle of January 2016.

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