Product details

Rating Automotive Architecture Integrated FET Control topology Sensored, Trapezoidal Control interface 1xPWM Vs (Min) (V) 4.5 Vs ABS (Max) (V) 40
Rating Automotive Architecture Integrated FET Control topology Sensored, Trapezoidal Control interface 1xPWM Vs (Min) (V) 4.5 Vs ABS (Max) (V) 40
VQFN (RGF) 40 35 mm² 5 x 7
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
  • Three-phase BLDC motor driver with integrated Sensored Trapezoidal control
    • Hall Sensor based Trapezodial (120°) commutation
    • Supports Analog or Digital Hall inputs
    • Configurable PWM modulation: Synchronous/Asynchronous
    • Cycle-by-cycle current limit to limit phase current
    • Supports up to 200-kHz PWM frequency
    • Active Demagnetization to reduce power losses
  • 4.5-V to 35-V operating voltage (40-V abs max)
  • High output current capability: 8-A Peak
  • Low MOSFET on-state resistance
    • 95-mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Low power sleep mode
    • 1.5-µA at VVM = 24-V, TA = 25°C
  • Integrated built-in current sense
    • Doesn’t require external current sense resistors
  • Flexible device configuration options
    • MCT8316ZR-Q1: 5-MHz 16-bit SPI interface for device configuration and fault status
    • MCT8316ZT-Q1: Hardware pin based configuration
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Built-in 3.3-V (5%), 30-mA LDO regulator
  • Built-in 3.3-V/5-V, 200-mA buck regulator
  • Delay compensation reduces duty cycle distortion
  • Suite of integrated protection features
    • Supply undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Motor lock protection
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indication pin (nFAULT)
    • Optional fault diagnostics over SPI interface
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
  • Three-phase BLDC motor driver with integrated Sensored Trapezoidal control
    • Hall Sensor based Trapezodial (120°) commutation
    • Supports Analog or Digital Hall inputs
    • Configurable PWM modulation: Synchronous/Asynchronous
    • Cycle-by-cycle current limit to limit phase current
    • Supports up to 200-kHz PWM frequency
    • Active Demagnetization to reduce power losses
  • 4.5-V to 35-V operating voltage (40-V abs max)
  • High output current capability: 8-A Peak
  • Low MOSFET on-state resistance
    • 95-mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Low power sleep mode
    • 1.5-µA at VVM = 24-V, TA = 25°C
  • Integrated built-in current sense
    • Doesn’t require external current sense resistors
  • Flexible device configuration options
    • MCT8316ZR-Q1: 5-MHz 16-bit SPI interface for device configuration and fault status
    • MCT8316ZT-Q1: Hardware pin based configuration
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Built-in 3.3-V (5%), 30-mA LDO regulator
  • Built-in 3.3-V/5-V, 200-mA buck regulator
  • Delay compensation reduces duty cycle distortion
  • Suite of integrated protection features
    • Supply undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Motor lock protection
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indication pin (nFAULT)
    • Optional fault diagnostics over SPI interface

The MCT8316Z-Q1 provides a single-chip code-free sensored trapezoidal solution for customers driving 12-V brushless-DC motors in automotive. The MCT8316Z-Q1 integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low RDS(ON) of 95 mOhms (high-side and low-side combined) to enable high power drive capability. Current is sensed using an integrated current sensing feature which eliminates the need for external sense resistors. Power management features of an adjustable buck regulator and LDO generate the necessary voltage rails for the device and can be used to power external circuits.

MCT8316Z-Q1 implements sensored trapezoidal control in a fixed-function state machine, so an external microcontroller is not required to spin the brushless-DC motor. The MCT8316Z-Q1 device integrates three analog hall comparators for position sensing to achieve sensored trapezoidal BLDC motor control. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response. The speed can be controlled through a PWM input.

There are a large number of protection features integrated into the MCT8316Z-Q1, intended to protect the device, motor, and system against fault events.

Refer Section 9.1 for design consideration and recommendation on device usage.

The MCT8316Z-Q1 provides a single-chip code-free sensored trapezoidal solution for customers driving 12-V brushless-DC motors in automotive. The MCT8316Z-Q1 integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low RDS(ON) of 95 mOhms (high-side and low-side combined) to enable high power drive capability. Current is sensed using an integrated current sensing feature which eliminates the need for external sense resistors. Power management features of an adjustable buck regulator and LDO generate the necessary voltage rails for the device and can be used to power external circuits.

MCT8316Z-Q1 implements sensored trapezoidal control in a fixed-function state machine, so an external microcontroller is not required to spin the brushless-DC motor. The MCT8316Z-Q1 device integrates three analog hall comparators for position sensing to achieve sensored trapezoidal BLDC motor control. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response. The speed can be controlled through a PWM input.

There are a large number of protection features integrated into the MCT8316Z-Q1, intended to protect the device, motor, and system against fault events.

Refer Section 9.1 for design consideration and recommendation on device usage.

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Technical documentation

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Type Title Date
* Data sheet MCT8316Z-Q1 Sensored Trapezoidal Integrated FET BLDC Motor Driver datasheet PDF | HTML 07 Dec 2021
Technical article How to achieve efficient, reliable and accurate actuation in real-time motor control systems 25 Oct 2022
Application note MCx8316x for Vacuum Robot Applications PDF | HTML 09 Sep 2022
Technical article Achieving a 360-degree field of view in mechanically scanning lidar with BLDC motors 27 Jan 2022
Certificate MCT8316ZT-Q1EVM EU RoHS Declaration of Conformity (DoC) 06 Dec 2021
Technical article Understanding brushless-DC motor systems, part 2 20 Oct 2021
Technical article Understanding brushless-DC motor systems, part 1 18 Oct 2021

Design & development

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Evaluation board

MCT8316ZTEVM — Three half-H-bridge integrated MOSFET drivers for sensored BLDC trapezoidal control evaluation board

The MCT8316Z is a three half-H-bridge integrated MOSFET drivers for sensored trapezoidal control of a three-phase brushless DC (BLDC) motor for 12-V/24-V DC,  8-A Peak current drive. It integrates three analog hall comparators for rotor position sensing to achieve sensored trapezoidal BLDC (...)

User guide: PDF | HTML
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VQFN (RGF) 40 View options

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