GUI for evaluation module (EVM)
MCT8329A-GUI — GUI for the MCT8329EVM
GUI used to evaluate MCT8329A on the MCT8329EVM
Data sheet
MCT8329A
- Three-phase BLDC gate driver with integrated sensorless motor control algorithm
- Code-free high speed Trapezoidal Control
- Supports up to 3 kHz (electrical frequency)
- Very fast startup time (<50 ms)
- Fast Deceleration (<150 ms)
- Supports 120° or 150° modulation to improve acoustic performance
- Forward and reverse windmilling support
- Analog, PWM, freq. or I2C based control input
- Configurable motor startup and stop options
- Optional closed loop speed or power control, open loop voltage control
- 5-point configurable reference profile support
- Anti-voltage surge prevents overvoltage
- Variable monitoring through DACOUT
- 65-V Three phase half-bridge gate driver
- Drives 3 high-side and 3 low-side N-Channel MOSFETs, 4.5 to 60-V operating voltage
- Supports 100% PWM duty cycle
- Bootstrap based gate driver architecture
- 1-A/2-A Maximum peak source/sink current
- Integrated current sense amplifier
- Adjustable gain (5, 10, 20, 40 V/V)
- Low power sleep mode
- 5-µA (maximum) at VPVDD = 24-V, TA = 25°C
- Speed loop accuracy: < 3% with internal clock
- Supports up to 100-kHz PWM frequency
- Accurate LDO (AVDD) 3.3-V ±3%, 50-mA support with AVDD connected to VREG
- Independent driver shutdown path (DRVOFF)
- Spread spectrum for EMI mitigation
- Suite of Integrated protection features
- Supply undervoltage lockout (UVLO)
- Motor lock detection (3 different types)
- Overcurrent protection (OCP)
- Thermal shutdown (TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over I2C interface
The MCT8329A provides a single-chip, code-free sensorless trapezoidal solution for applications requiring high speed operation or very fast startup time for three phase brushless-DC motors. The device provide three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The device generates correct gate drive voltages using an internal charge pump and enhances the high-side MOSFETs using a bootstrap circuit. A trickle charge pump is included to support 100% duty cycle. The gate drive architecture supports peak gate drive currents up to 1-A source and 2-A sink. The MCT8329A can operate from a single power supply and supports a wide input supply range of 4.5 to 60 V.
Sensorless trapezoidal control is highly configurable through register settings in a non-volatile EEPROM (MCT8329A1I) ranging from motor start-up behavior to closed loop operation, which allows the device to operate stand-alone once it has been configured. Motor current is sensed using an integrated current sensing amplifier supporting single external shunt resistor. The device receives a speed command through a PWM input or analog voltage or variable frequency square wave or I2C command. There are a large number of protection features integrated into the MCT8329A, intended to protect the device, motor, and system against fault events.
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Technical documentation
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View all 8 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | MCT8329A High Speed Sensorless Trapezoidal Control Three-phase BLDC Gate Driver datasheet | PDF | HTML | 05 Jan 2023 |
| Application note | How to Program I2C for MCx83xx Device Family | PDF | HTML | 24 Mar 2025 | |
| Application note | Motor Pre-Startup Tuning for MCx83xx | PDF | HTML | 24 Mar 2025 | |
| Application note | MCF83xx and MCT83xx EEPROM Read and Write Procedure | PDF | HTML | 13 Mar 2025 | |
| Technical article | Selecting the right level of integration to meet motor design requirements | PDF | HTML | 04 Jan 2024 | |
| Technical article | Top 3 ways to reduce audible noise in motion control applications | PDF | HTML | 21 Dec 2023 | |
| Application brief | High-Efficiency Sensorless, Code-Free BLDC Motor Drives for Scalable Systems | 03 May 2023 | ||
| Certificate | MCT8329EVM EU RoHS Declaration of Conformity (DoC) | 16 Dec 2022 |
Design & development
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Evaluation board
MCT8329EVM — MCT8329 evaluation module for three-phase sensorless trapezoidal BLDC gate driver
The MCT8329 is a 4.5-V to 60-V, three-phase BLDC gate driver IC with code-free sensorless trapezoidal control for motor drive applications. It provide three half-bridge gate drivers, each capable of driving highside and low-side N-channel power MOSFETs.
The device generates the correct gate drive (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN (REE) | 36 | Ultra Librarian |
Ordering & quality
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