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MCT8316A-Q1

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

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Data sheet

MCT8316A-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Architecture Integrated FET Control topology Sensorless, Trapezoidal Control interface 1xPWM, Analog, Serial Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features 120 or 150 degree modulation for improved acoustic performance, Active Demag to reduce power losses, Code-free high speed sensored trapezoidal control, Configurable motor startup and stop options, Fast Deceleration (<150 ms), Fast startup time (<50 ms), Integrated protections UVLO, Optional closed loop speed control, Stand-alone operation, Up to 3 kHz (electrical frequency), 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 Sensorless, Trapezoidal Control interface 1xPWM, Analog, Serial Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features 120 or 150 degree modulation for improved acoustic performance, Active Demag to reduce power losses, Code-free high speed sensored trapezoidal control, Configurable motor startup and stop options, Fast Deceleration (<150 ms), Fast startup time (<50 ms), Integrated protections UVLO, Optional closed loop speed control, Stand-alone operation, Up to 3 kHz (electrical frequency), 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
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade-1 : –40°C ≤ TA ≤ 125°C
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free high speed Trapezoidal Control
    • Supports upto 3kHz (electrical frequency)
    • Very fast startup time (<50ms)
    • Fast Deceleration (<150ms)
    • Supports 120° or 150° modulation to improve acoustic performance
    • Windmilling support through forward resynchronization and reverse drive
    • Analog, PWM, freq. or I2C based speed input
    • Active Demagnetization to reduce power losses
    • Configurable motor startup and stop options
    • Optional closed loop speed control
    • Anti-voltage surge protections prevents overvoltage
    • Variable monitoring through DACOUT
  • 4.5 to 35V operating voltage (40V abs max)
  • High output current capability: 8A peak
  • Low MOSFET on-state resistance
    • 95mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Low power sleep mode
    • 3µA (maximum) at VVM = 24-V, TA = 25°C
  • Speed loop accuracy: 3% with internal clock and 1% with external clock reference
  • Supports up to 100kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistor
  • Built-in 3.3V ±5%, 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
  • Suite of Integrated protection features
    • Supply 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 I2C interface
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade-1 : –40°C ≤ TA ≤ 125°C
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free high speed Trapezoidal Control
    • Supports upto 3kHz (electrical frequency)
    • Very fast startup time (<50ms)
    • Fast Deceleration (<150ms)
    • Supports 120° or 150° modulation to improve acoustic performance
    • Windmilling support through forward resynchronization and reverse drive
    • Analog, PWM, freq. or I2C based speed input
    • Active Demagnetization to reduce power losses
    • Configurable motor startup and stop options
    • Optional closed loop speed control
    • Anti-voltage surge protections prevents overvoltage
    • Variable monitoring through DACOUT
  • 4.5 to 35V operating voltage (40V abs max)
  • High output current capability: 8A peak
  • Low MOSFET on-state resistance
    • 95mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Low power sleep mode
    • 3µA (maximum) at VVM = 24-V, TA = 25°C
  • Speed loop accuracy: 3% with internal clock and 1% with external clock reference
  • Supports up to 100kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistor
  • Built-in 3.3V ±5%, 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
  • Suite of Integrated protection features
    • Supply 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 I2C interface

The MCT8316A-Q1 provides a single-chip, code-free sensorless trapezoidal device for customers requiring high speed operation (up to 3kHz electrical) or very fast startup time (<50ms) for 12 to 24V brushless-DC motors up to 8A peak current. The MCT8316A-Q1 integrates three 1/2-H bridges with 40V absolute maximum capability and a very low RDS(ON) of 95mΩ (high-side + low-side). Power management features of an adjustable buck regulator and LDO generate the 3.3V or 5.0V voltage rails for the device and can be used to power external circuits.

Sensorless trapezoidal control is highly configurable ranging from motor start-up behavior to closed loop operation through register settings. These settings can be saved in non-volatile EEPROM, which allows the device to operate stand-alone once the device 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 MCT8316A-Q1, intended to protect the device, motor, and system against fault events.

Documentation for reference:

The MCT8316A-Q1 provides a single-chip, code-free sensorless trapezoidal device for customers requiring high speed operation (up to 3kHz electrical) or very fast startup time (<50ms) for 12 to 24V brushless-DC motors up to 8A peak current. The MCT8316A-Q1 integrates three 1/2-H bridges with 40V absolute maximum capability and a very low RDS(ON) of 95mΩ (high-side + low-side). Power management features of an adjustable buck regulator and LDO generate the 3.3V or 5.0V voltage rails for the device and can be used to power external circuits.

Sensorless trapezoidal control is highly configurable ranging from motor start-up behavior to closed loop operation through register settings. These settings can be saved in non-volatile EEPROM, which allows the device to operate stand-alone once the device 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 MCT8316A-Q1, intended to protect the device, motor, and system against fault events.

Documentation for reference:

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* Data sheet MCT8316A-Q1 High Speed Sensorless Trapezoidal Control Integrated FET BLDC Driver datasheet PDF | HTML 08 May 2024
Application brief MCx8316x for Vacuum Robot Applications PDF | HTML 09 Sep 2022

Design & development

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Evaluation board

MCT8316AEVM — MCT8316A evaluation module for three-phase sensorless trapezoidal BLDC motor driver

The MCT8316A is three half-H-bridge integrated MOSFET drivers for sensorless trapezoidal control of a three-phase brushless DC (BLDC) motor for 4.5-V to 35-V,  8-A peak current drive. The MCT8316A integrates a buck regulator that can support 200-mA with programmable regulated supply. EVM (...)
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Supported products & hardware

Supported products & hardware

Products
BLDC drivers
DRV8311 — 24-V abs max, 3 to 20-V, three-phase brushless-DC motor driver with integrated FETs DRV8316 — 40-V max 8-A peak 3-phase motor driver with integrated current sensing and integrated FETs DRV8316-Q1 — Automotive 40-V max 8-A peak three-phase motor driver with integrated current sensing DRV8316C — 40-V max 8-A peak 3-phase motor driver with integrated current sensing, FETs, and enhanced CSA specs DRV8316C-Q1 — Automotive 40-V max 8-A peak three-phase motor driver with integrated current sensing DRV8317 — 24-V max 5-A peak three-phase motor driver with integrated FETs and current sensing
Integrated control BLDC drivers
MCF8316A — 40-V max, 8-A peak, sensorless FOC control 3-phase BLDC motor driver MCF8316C-Q1 — Automotive, 40-V max, 8-A peak, sensorless field oriented control (FOC) 3-phase BLDC motor driver MCT8316A — 40-V max, 8-A peak, sensorless trapezoidal control 3-phase BLDC motor driver MCT8316A-Q1 — Automotive, 40V max, 8A peak, sensorless trapezoidal control 3-phase BLDC motor driver MCT8316Z — 40-V max, 8-A peak, sensored trapezoidal control 3-phase BLDC motor driver MCT8316Z-Q1 — Automotive 40-V max, 8-A peak, sensored trapezoidal control 3-phase BLDC motor driver
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