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MCT8316A

ACTIVE

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

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Data sheet

MCT8316A

ACTIVE
Data sheet Order now

Product details

Rating Catalog 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,OCP,OTW-OTSD,AVS, 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 Catalog 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,OCP,OTW-OTSD,AVS, 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
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free high speed Trapezoidal Control
    • Supports upto 3 kHz (electrical frequency)
    • Very fast startup time (<50 ms)
    • Fast Deceleration (<150 ms)
    • 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 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
    • 3-µA (maximum) at VVM = 24-V, TA = 25°C
  • Speed loop accuracy: 3% with internal clock and 1% with external clock reference
  • Flexible device configuration options
    • MCT8316AV: I2C interface (EEPROM)
    • MCT8316AT: Hardware pin based configuration
  • Supports up to 100-kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistor
  • Built-in 3.3-V ±5%, 20-mA LDO regulator
  • Built-in 3.3-V/5-V, 170-mA 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
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free high speed Trapezoidal Control
    • Supports upto 3 kHz (electrical frequency)
    • Very fast startup time (<50 ms)
    • Fast Deceleration (<150 ms)
    • 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 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
    • 3-µA (maximum) at VVM = 24-V, TA = 25°C
  • Speed loop accuracy: 3% with internal clock and 1% with external clock reference
  • Flexible device configuration options
    • MCT8316AV: I2C interface (EEPROM)
    • MCT8316AT: Hardware pin based configuration
  • Supports up to 100-kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistor
  • Built-in 3.3-V ±5%, 20-mA LDO regulator
  • Built-in 3.3-V/5-V, 170-mA 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 provides a single-chip, code-free sensorless trapezoidal solution for customers requiring high speed operation (up to 3kHz electrical) or very fast startup time (<50ms) for 12- to 24-V brushless-DC motors up to 8-A peak current. The MCT8316A integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low RDS(ON) of 95 mΩ (high-side + low-side). Power management features of an adjustable buck regulator and LDO generate the 3.3-V or 5.0-V voltage rails for the device and can be used to power external circuits.

Sensorless trapezoidal control is highly configurable through register settings (MCT8316AV) or hardware pins (MCT8316AT) ranging from motor start-up behavior to closed loop operation. Register settings for MCT8316AV can be set 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 MCT8316A, intended to protect the device, motor, and system against fault events.

Documentation for reference:

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

Sensorless trapezoidal control is highly configurable through register settings (MCT8316AV) or hardware pins (MCT8316AT) ranging from motor start-up behavior to closed loop operation. Register settings for MCT8316AV can be set 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 MCT8316A, intended to protect the device, motor, and system against fault events.

Documentation for reference:

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Technical documentation

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Type Title Date
* Data sheet MCT8316A High Speed Sensorless Trapezoidal Control Integrated FET BLDC Driver datasheet (Rev. B) PDF | HTML 08 Feb 2022
Technical article How motor drive innovations are helping solve robotic movement design challenges PDF | HTML 05 Jan 2024
Technical article Top 3 ways to reduce audible noise in motion control applications PDF | HTML 21 Dec 2023
Application brief MCx8316x for Vacuum Robot Applications PDF | HTML 09 Sep 2022
Application note MCT8316A - Design Challenges and Solution PDF | HTML 22 Jun 2022
Certificate MCT8316AEVM EU RoHS Declaration of Conformity (DoC) 07 Apr 2022
Technical article What is “real-time control” and why do you need it? PDF | HTML 06 Apr 2022
User guide MCT8316A Tuning Guide (Rev. A) PDF | HTML 20 Dec 2021
Application note MCF8316A - Design Challenges and Solutions PDF | HTML 29 Nov 2021
User guide MCT8316AT Tuning Guide PDF | HTML 29 Sep 2021
Technical article 3 ways to speed cycle time when designing with brushless-DC motors PDF | HTML 07 Sep 2021
Application note How to Reduce Motor Noise with Code-Free, Sensorless BLDC Motor Drivers PDF | HTML 31 Aug 2021
User guide MCT8316AEVM Evaluation Module User's Guide PDF | HTML 30 Aug 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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 (...)
User guide: PDF | HTML
Not available on TI.com
GUI for evaluation module (EVM)

MCT8316A-GUI — GUI for MCT8316AEVM

GUI used to evaluate MCT8316A on the MCT8316AEVM
Supported products & hardware

Supported products & hardware

Products
Integrated control BLDC drivers
MCT8316A — 40-V max, 8-A peak, sensorless trapezoidal control 3-phase BLDC motor driver
Hardware development
Evaluation board
MCT8316AEVM — MCT8316A evaluation module for three-phase sensorless trapezoidal BLDC motor driver
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Calculation tool

BLDC-MOSFET-THERMAL-CALC — BLDC integrated MOSFET driver thermal calculator tool

Calculates the thermals of a BLDC integrated MOSFET driver based on user input system parameters
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 DRV8316-Q1 — Automotive 40-V max 8-A peak three-phase motor driver with integrated current sensing DRV8316C — 40-V max 8-A peak three-phase motor driver with integrated current sensing 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 MCT8316A — 40-V max, 8-A 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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VQFN (RGF) 40 View options
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