MCF8316A Series

40-V max, 8-A peak, sensorless FOC control 3-phase BLDC motor driver

Catalog

40-V max, 8-A peak, sensorless FOC control 3-phase BLDC motor driver

Part	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Package / Case	Function	Current - Output	Interface	Technology	Supplier Device Package	Voltage - Load [Max]	Voltage - Load [Min]	Output Configuration	Motor Type - AC, DC	Motor Type - Stepper	Voltage - Supply [Min]	Voltage - Supply [Max]	Grade
Texas Instruments MCF8316A1VRGFR	-40 °C	125 °C	Surface Mount	40-VFQFN Exposed Pad	Controller - Speed	8 A	I2C PWM	NMOS	40-VQFN	35 V	4.5 V	Half Bridge (3)	Brushless DC (BLDC)	Multiphase	4.5 V	35 V	Automotive

Catalog

40-V max, 8-A peak, sensorless FOC control 3-phase BLDC motor driver

Key Features

• Three-phase BLDC motor driver with integrated sensorless motor control algorithmCode-free Field Oriented Control (FOC)Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)5-point configurable speed profile supportWindmilling support through forward resynchronization and reverse driveAnalog, PWM, freq. or I 2C based speed inputConfigurable motor startup and stop optionsAnti-voltage surge protections prevents overvoltageImproved acoustic performance with automatic dead time compensation4.5- to 35-V operating voltage (40-V abs max)High output current capability: 8-A peakLow MOSFET on-state resistance95-mΩ R DS(ON) (HS + LS) at T A = 25°CLow power sleep mode3-µA (maximum) at V VM = 24-V, T A = 25°CSpeed loop accuracy: 3% with internal clock and 1% with external clock referenceCustomer-configurable non-volatile memory (EEPROM) to store device configurationSupports up to 75-kHz PWM frequency for low inductance motor supportDoes not require external current sense resistors, built-in current sensingBuilt-in 3.3-V ±5%, 20-mA LDO regulatorBuilt-in 3.3-V/5-V, 170-mA buck regulatorDedicated DRVOFF pin to disable (Hi-Z) outputsSpread spectrum and slew rate for EMI mitigationSuite of Integrated protection featuresSupply undervoltage lockout (UVLO)Motor lock detection (5 different types)Overcurrent protection (OCP)Thermal warning and shutdown (OTW/TSD)Fault condition indication pin (nFAULT)Optional fault diagnostics over I 2C interfaceThree-phase BLDC motor driver with integrated sensorless motor control algorithmCode-free Field Oriented Control (FOC)Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)5-point configurable speed profile supportWindmilling support through forward resynchronization and reverse driveAnalog, PWM, freq. or I 2C based speed inputConfigurable motor startup and stop optionsAnti-voltage surge protections prevents overvoltageImproved acoustic performance with automatic dead time compensation4.5- to 35-V operating voltage (40-V abs max)High output current capability: 8-A peakLow MOSFET on-state resistance95-mΩ R DS(ON) (HS + LS) at T A = 25°CLow power sleep mode3-µA (maximum) at V VM = 24-V, T A = 25°CSpeed loop accuracy: 3% with internal clock and 1% with external clock referenceCustomer-configurable non-volatile memory (EEPROM) to store device configurationSupports up to 75-kHz PWM frequency for low inductance motor supportDoes not require external current sense resistors, built-in current sensingBuilt-in 3.3-V ±5%, 20-mA LDO regulatorBuilt-in 3.3-V/5-V, 170-mA buck regulatorDedicated DRVOFF pin to disable (Hi-Z) outputsSpread spectrum and slew rate for EMI mitigationSuite of Integrated protection featuresSupply undervoltage lockout (UVLO)Motor lock detection (5 different types)Overcurrent protection (OCP)Thermal warning and shutdown (OTW/TSD)Fault condition indication pin (nFAULT)Optional fault diagnostics over I 2C interface

Description

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: 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: