company blog about Mingjiada Supply TI DRV8329 60V Automotive BLDC Three-Phase Gate Driver With Single Current-Sense Amplifier

Mingjiada Supply TI DRV8329 60V Automotive BLDC Three-Phase Gate Driver With Single Current-Sense Amplifier

As the electrification and intelligentisation of vehicles accelerate, body systems such as electric water pumps, cooling fans, electric power steering and electronic parking brakes are placing ever-higher demands on the integration, diagnostic capabilities and functional safety levels of three-phase brushless DC (BLDC) motor drives. Mingjiada Electronics has long supplied the Texas Instruments (TI) DRV8329 series of three-phase BLDC gate drivers—specifically the DRV8329AQRGFRQ1. With a 60V voltage rating, three integrated current sense amplifiers and a comprehensive range of protection and diagnostic functions, this device provides a highly integrated gate driver solution for automotive motor drive systems.

DRV8329 (DRV8329AQRGFRQ1) is a 60V three-phase BLDC gate driver launched by TI, specifically designed for automotive and industrial motor drive applications. The device integrates three half-bridge gate drivers capable of driving external N-channel power MOSFETs to form a three-phase inverter bridge, enabling square-wave (trapezoidal) and sinusoidal control of BLDC or PMSM motors in conjunction with a microcontroller.

DRV8329 supports a wide operating voltage range of 4.5 V to 60 V, with a configurable gate drive current to accommodate MOSFETs of different power ratings. The device integrates three bidirectional current sense amplifiers (CSAs), supporting phase current and bus current sampling in three PWM modulation modes (1x, 3x and 6x), thereby simplifying current-loop design and reducing the number of external operational amplifiers required. The DRV8329 features an integrated precision 3.3V LDO, which can be used to power an external controller and serves as the reference voltage for the CSAs. The device’s configuration settings can be configured via hardware (H/W) pins.

DRV8329 Key Features:
65V three-phase half-bridge gate driver
Capable of driving 3 high-side and 3 low-side N-channel MOSFETs (NMOS)
4.5V to 60V operating voltage range
Features a trickle charge pump, supporting 100% duty cycle
Bootstrap-based gate driver architecture
1000mA maximum peak pull-up current
2000mA maximum peak pull-down current
Integrated current sense amplifier with low input offset voltage (optimised for a single shunt)
Adjustable gain (5V/V, 10V/V, 20V/V, 40V/V)
Hardware interface for simple configuration
Current < 1 µA in ultra-low-power sleep mode at 25 °C
4 ns (typical) phase-to-phase propagation delay matching
Independent driver shutdown path (DRVOFF)
65 V rated wake-up pin (nSLEEP)
SHx pins withstand negative transients down to –10 V
6x and 3x PWM modes
Supports 3.3V and 5V logic inputs
Precision LDO (AVDD), 3.3V ±3%, 80mA
Compact QFN package and dimensions
VDS overcurrent threshold adjustable via the VDSLVL pin
Dead-time adjustable via the DT pin
Efficient system design with integrated power block

Application Details
With a 60V voltage rating, three integrated current sense channels and automotive-grade reliability, the DRV8329AQRGFRQ1 is widely used in the following automotive and industrial motor drive applications:
Automotive electric water pumps: Drives engine coolant water pumps, battery thermal management water pumps and electronic water pumps, supporting continuous operation and fault diagnosis in high and low temperature environments.
Automotive cooling fans: Drives cooling fan motors; in conjunction with PWM speed control, it enables on-demand cooling and reduces the vehicle’s overall energy consumption.
Electric Power Steering (EPS): Provides three-phase gate driving and phase current sampling for EPS motor drives, meeting the steering system’s requirements for response speed and safety.
Electronic Parking Brake (EPB): Drives the EPB caliper motor; in conjunction with current sensing, it enables clamping force control and fault detection.
Body Motor Drives: Suitable for BLDC motor drive modules in electric tailgates, electric seats, sunroofs and windows.
Oil Pumps and Auxiliary Pumps: Drives motors in auxiliary hydraulic systems, such as transmission oil pumps and brake booster pumps.
Industrial BLDC and PMSM Drives: Suitable for 48V motor drive platforms in industrial fans, pumps, power tools and automated equipment.

Mingjiada Electronics has long specialised in the TI product range. The DRV8329 series of gate drivers (including models such as the DRV8329AQRGFRQ1 and DRV8329BQRGFRQ1) are always in stock, and we support sample orders, small-batch purchases and full-reel supply. For further information regarding the [TI] DRV8329 or to enquire about sample prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for more supply details.
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