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MCF8315C-Q1

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Automotive, 40V max, 4A peak, sensorless field-oriented control (FOC) three-phase BLDC motor driver

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Data sheet

MCF8315C-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive 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
Rating Automotive 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
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free Field Oriented Control (FOC)
    • Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)
    • 5-point configurable speed profile support
    • Windmilling support through forward resynchronization and reverse drive
    • Analog, PWM, freq. or I2C based speed input
    • Configurable motor start-up and stop options
    • Anti-voltage surge (AVS) protection
    • Improved acoustic performance with automatic dead time compensation
    • Variable monitoring through DACOUT pin
  • 4.5 to 35V operating voltage (40V abs max)
  • High output current capability: 4-A peak
  • Low MOSFET on-state resistance
    • RGF: RDS(ON)(H+L) at TJ=25°C: 240mΩ(typ.)
    • RRY: 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: Refer
    • 5µA (maximum) at VVM = 24V, TA = 25°C
  • Speed loop accuracy: 3% with internal clock and 1% with external clock reference
  • Customer-configurable non-volatile memory (EEPROM) to store device configuration
  • Supports up to 60-kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistors; uses built-in current sensing
  • Built-in 3.3V, 20mA LDO regulator
  • Built-in 3.3V/5V, 170mA buck regulator
  • Dedicated DRVOFF pin to disable (Hi-Z) outputs
  • Spread spectrum and slew rate for EMI mitigation
  • A suite of integrated protection features
    • Supply 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
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free Field Oriented Control (FOC)
    • Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)
    • 5-point configurable speed profile support
    • Windmilling support through forward resynchronization and reverse drive
    • Analog, PWM, freq. or I2C based speed input
    • Configurable motor start-up and stop options
    • Anti-voltage surge (AVS) protection
    • Improved acoustic performance with automatic dead time compensation
    • Variable monitoring through DACOUT pin
  • 4.5 to 35V operating voltage (40V abs max)
  • High output current capability: 4-A peak
  • Low MOSFET on-state resistance
    • RGF: RDS(ON)(H+L) at TJ=25°C: 240mΩ(typ.)
    • RRY: 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: Refer
    • 5µA (maximum) at VVM = 24V, TA = 25°C
  • Speed loop accuracy: 3% with internal clock and 1% with external clock reference
  • Customer-configurable non-volatile memory (EEPROM) to store device configuration
  • Supports up to 60-kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistors; uses built-in current sensing
  • Built-in 3.3V, 20mA LDO regulator
  • Built-in 3.3V/5V, 170mA buck regulator
  • Dedicated DRVOFF pin to disable (Hi-Z) outputs
  • Spread spectrum and slew rate for EMI mitigation
  • A suite of integrated protection features
    • Supply 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

The MCF8315C-Q1 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-Q1 integrates three ½-bridges with 40V absolute maximum capability and a low RDS(ON) of 240/250/265mΩ (high-side + low-side FETs). MCF8315C-Q1 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-Q1, intended to protect the device, motor, and system against fault events.

MCF8315C-Q1 is available in three packages - 40-pin 7x5mm wettable-flank QFN (RGF), 32-pin 6x4mm wettable-flank QFN (RRY) and 24-pin 7.8x6.4mm HTSSOP (PWP).

The MCF8315C-Q1 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-Q1 integrates three ½-bridges with 40V absolute maximum capability and a low RDS(ON) of 240/250/265mΩ (high-side + low-side FETs). MCF8315C-Q1 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-Q1, intended to protect the device, motor, and system against fault events.

MCF8315C-Q1 is available in three packages - 40-pin 7x5mm wettable-flank QFN (RGF), 32-pin 6x4mm wettable-flank QFN (RRY) and 24-pin 7.8x6.4mm HTSSOP (PWP).
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* Data sheet MCF8315C-Q1 Sensorless Field Oriented Control (FOC) Integrated FET BLDC Driver datasheet PDF | HTML 16 May 2023

Design & development

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Evaluation board

MCF8315EVM — MCF8315 evaluation module for three-phase sensorless FOC integrated MOSFET BLDC motor driver

The MCF8315 has three half-H-bridge integrated MOSFET drivers for sensorless FOC control of a three-phase brushless DC (BLDC) motor for 4.5-V to 35-V,  5-A peak current drive. The MCx8315 integrates a buck regulator that can support 200-mA with programmable regulated supply.

EVM includes an (...)

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VQFN (RGF) 40 View options
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