MCF8315A Series
40-V max, 4-A peak, sensorless FOC control three-phase BLDC motor driver
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
40-V max, 4-A peak, sensorless FOC control three-phase BLDC motor driver
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Output Configuration | Motor Type - AC, DC | Applications | Package / Case | Interface | Mounting Type | Motor Type - Stepper | Voltage - Supply [Min] | Voltage - Supply [Max] | Current - Output | Supplier Device Package | Voltage - Load [Min] | Voltage - Load [Max] | Function | Technology |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments MCF8315A1VRGFR | -40 °C | 125 °C | Half Bridge (3) | Brushless DC (BLDC) | Fan Motor Driver | 40-VFQFN Exposed Pad | Analog, I2C, PWM | Surface Mount | Multiphase | 4.5 V | 35 V | 4 A | 40-VQFN (7x5) | 4.5 V | 35 V | Driver - Fully Integrated, Control and Power Stage | NMOS |
Key Features
• Three-phase BLDC motor driver with integrated sensorless motor control algorithmCode-free Field Oriented Control (FOC)Analog, PWM and freq. based speed input modes: available only when MCF8315A is configured as a standby device (DEV_MODE = 0b)I 2C based speed input mode: available in both sleep (DEV_MODE = 1b) and standby devices (DEV_MODE = 0b).Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)5-point configurable speed profile supportWindmilling support through forward resynchronization and reverse driveAnti-voltage surge (AVS) protectionImproved acoustic performance with automatic dead time compensation4.5- to 35-V operating voltage (40-V abs max)High output current capability: 4-A peakLow MOSFET on-state resistanceR DS(ON) (HS + LS) at T A = 25°C : 240-mΩ (typ.)Low power sleep mode : Refer5-µA (maximum) at V VM = 24-V, T A = 25°CSpeed loop accuracy: 3% with internal clock and 1% with external clock referenceSupports up to 75-kHz PWM frequency for low inductance motor supportDoes not require external current sense resistors; uses built-in current sensingBuilt-in 3.3-V, 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 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 I 2C interfaceThree-phase BLDC motor driver with integrated sensorless motor control algorithmCode-free Field Oriented Control (FOC)Analog, PWM and freq. based speed input modes: available only when MCF8315A is configured as a standby device (DEV_MODE = 0b)I 2C based speed input mode: available in both sleep (DEV_MODE = 1b) and standby devices (DEV_MODE = 0b).Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)5-point configurable speed profile supportWindmilling support through forward resynchronization and reverse driveAnti-voltage surge (AVS) protectionImproved acoustic performance with automatic dead time compensation4.5- to 35-V operating voltage (40-V abs max)High output current capability: 4-A peakLow MOSFET on-state resistanceR DS(ON) (HS + LS) at T A = 25°C : 240-mΩ (typ.)Low power sleep mode : Refer5-µA (maximum) at V VM = 24-V, T A = 25°CSpeed loop accuracy: 3% with internal clock and 1% with external clock referenceSupports up to 75-kHz PWM frequency for low inductance motor supportDoes not require external current sense resistors; uses built-in current sensingBuilt-in 3.3-V, 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 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 I 2C interface
Description
AI
The MCF8315A 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 4-A peak current. The MCF8315A integrates three ½-bridges with 40-V absolute maximum capability and a low R DS(ON) of 240 mΩ (high-side + low-side FETs). MCF8315A integrates power management circuits including an voltage-adjustable buck regulator (3.3 V / 5 V, 170-mA) and LDO (3.3 V / 20 mA) 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 I 2C command. There are a large number of protection features integrated into the MCF8315A, intended to protect the device, motor, and system against fault events.
Documentation for reference:
The MCF8315A 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 4-A peak current. The MCF8315A integrates three ½-bridges with 40-V absolute maximum capability and a low R DS(ON) of 240 mΩ (high-side + low-side FETs). MCF8315A integrates power management circuits including an voltage-adjustable buck regulator (3.3 V / 5 V, 170-mA) and LDO (3.3 V / 20 mA) 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 I 2C command. There are a large number of protection features integrated into the MCF8315A, intended to protect the device, motor, and system against fault events.
Documentation for reference: