The MCF8316A provides a single-chip, code-free sensorless FOC solution for customers driving speed-controlled 12- to 24-V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 8-A peak current. The MCF8316A integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low R DS(ON) of 95 mΩ(high-side + low-side). Power management features of an adjustable buck regulator and LDO generate the 3.3-V or 5.0-V voltage rails for the device and can be used to power external circuits.
The algorithm configuration can be stored in non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. The device receives a speed command through a PWM input, analog voltage, variable frequency square wave or I 2C command. There are a large number of protection features integrated into the MCF8316A, intended to protect the device, motor, and system against fault events.
Documentation for reference:
| Rating | Catalog |
| Architecture | Integrated FET |
| Control topology | Field-oriented control (FOC), Sensorless |
| Control interface | 1xPWM, Analog, Serial |
| Vs (min) (V) | 4.5 |
| Vs ABS (max) (V) | 40 |
| Features | 5-point configurable speed profile support, Anti-voltage surge protections prevents overvoltage, Code-free Field Oriented Control (FOC), Configurable motor startup and stop options, Improved acoustic performance with automatic dead time compensation, Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET), Variable monitoring through DACOUT, Windmilling support through forward resynchronization and reverse drive |
| Operating temperature range (°C) | -40 to 125 |
| VQFN (RGF) | 40 | 35 mm² 7 x 5 |
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