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
MCT8316Z-Q1
Automotive 40-V max, 8-A peak, sensored trapezoidal control 3-phase BLDC motor driver
Data sheet
MCT8316Z-Q1
- 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.
Technical documentation
No results found. Please clear your search and try again.
View all 4 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | MCT8316Z-Q1 Sensored Trapezoidal Integrated FET BLDC Motor Driver datasheet | PDF | HTML | 07 Dec 2021 |
| Application brief | 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 moto | PDF | HTML | 27 Jan 2022 | |
| Certificate | MCT8316ZT-Q1EVM EU RoHS Declaration of Conformity (DoC) | 06 Dec 2021 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGF) | 40 | Ultra Librarian |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Information included:
- Fab location
- Assembly location
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.