MCF8315C Series
40V max, 4A peak, sensorless field-oriented control (FOC) three-phase BLDC motor driver
Manufacturer: Texas Instruments
Catalog
40V max, 4A peak, sensorless field-oriented control (FOC) three-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 I2C based speed inputConfigurable motor start-up and stop optionsAnti-voltage surge (AVS) protectionImproved acoustic performance with automatic dead time compensationVariable monitoring through DACOUT pin4.5 to 35V operating voltage (40V abs max)High (peak) output current capability: 4A (RRY), 3.5A (PWP)Low MOSFET on-state resistanceRRY: RDS(ON)(H+L) at TJ=25°C: 250mΩ(typ.)PWP: RDS(ON)(H+L) at TJ=25°C: 265mΩ(typ.)Low power sleep mode: Refer5µA (maximum) at VVM = 24V, TA = 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 60-kHz PWM frequency for low inductance motor supportDoes not require external current sense resistors; uses built-in current sensingBuilt-in 3.3V, 20mA LDO regulatorBuilt-in 3.3V/5V, 170mA buck regulatorDedicated DRVOFF pin to disable (Hi-Z) outputsSpread spectrum and slew rate for EMI mitigationA suite of integrated protection featuresSupply under voltage lockout (UVLO)Supply over voltage protection (OVP)Motor lock detection (5 different types)Over current protection (OCP)Thermal warning and shutdown (OTW/TSD)Fault condition indication pin (nFAULT)Optional fault diagnostics over I2C 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 I2C based speed inputConfigurable motor start-up and stop optionsAnti-voltage surge (AVS) protectionImproved acoustic performance with automatic dead time compensationVariable monitoring through DACOUT pin4.5 to 35V operating voltage (40V abs max)High (peak) output current capability: 4A (RRY), 3.5A (PWP)Low MOSFET on-state resistanceRRY: RDS(ON)(H+L) at TJ=25°C: 250mΩ(typ.)PWP: RDS(ON)(H+L) at TJ=25°C: 265mΩ(typ.)Low power sleep mode: Refer5µA (maximum) at VVM = 24V, TA = 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 60-kHz PWM frequency for low inductance motor supportDoes not require external current sense resistors; uses built-in current sensingBuilt-in 3.3V, 20mA LDO regulatorBuilt-in 3.3V/5V, 170mA buck regulatorDedicated DRVOFF pin to disable (Hi-Z) outputsSpread spectrum and slew rate for EMI mitigationA suite of integrated protection featuresSupply under voltage lockout (UVLO)Supply over voltage protection (OVP)Motor lock detection (5 different types)Over current protection (OCP)Thermal warning and shutdown (OTW/TSD)Fault condition indication pin (nFAULT)Optional fault diagnostics over I2C interface
Description
AI
The MCF8315C provides a single-chip, code-free sensorless FOC solution for customers driving speed-controlled 12 to 24V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 4A peak current. The MCF8315C integrates three ½-bridges with 40V absolute maximum capability and a low RDS(ON) of 250/265mΩ (high-side + low-side FETs). MCF8315C integrates power management circuits including a voltage-adjustable buck regulator (3.3V/5V, 170mA) and LDO (3.3V/20mA) that can be used to power external circuits.
The FOC 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 I2C command. There are a large number of protection features integrated into the MCF8315C, intended to protect the device, motor, and system against fault events.
MCF8315C is available in two packages: 32-pin 6x4mm wettable-flank QFN (RRY) and 24-pin 7.8x6.4mm HTSSOP (PWP).
The MCF8315C provides a single-chip, code-free sensorless FOC solution for customers driving speed-controlled 12 to 24V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 4A peak current. The MCF8315C integrates three ½-bridges with 40V absolute maximum capability and a low RDS(ON) of 250/265mΩ (high-side + low-side FETs). MCF8315C integrates power management circuits including a voltage-adjustable buck regulator (3.3V/5V, 170mA) and LDO (3.3V/20mA) that can be used to power external circuits.
The FOC 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 I2C command. There are a large number of protection features integrated into the MCF8315C, intended to protect the device, motor, and system against fault events.
MCF8315C is available in two packages: 32-pin 6x4mm wettable-flank QFN (RRY) and 24-pin 7.8x6.4mm HTSSOP (PWP).
