Part Number: DRV3203-Q1
Function: Three-Phase Brushless Motor Driver
Package: HTQFP (48) Type
Manufacturer: Texas Instruments
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Description
The DRV3203-Q1 device is a field-effect transistor (FET) pre-driver designed for three-phase motor control for applications such as an oil pump or a water pump. The device has three high-side pre-FET drivers and three low-side drivers which are under the control of an external MCU. A charge pump supplies the power for the high side, and there is no requirement for a bootstrap capacitor.
For commutation, this integrated circuit (IC) sends a conditional motor signal and output to the MCU. Diagnostics provide undervoltage, overvoltage, overcurrent, overtemperature and power-bridge faults. One can measure the motor current using an integrated current-sense amplifier and comparator in a battery common-mode range, which allows the use of the motor current in a high-side current-sense application. External resistors set the gain. One can configure the pre-drivers and other internal settings through the SPI.
Features
- Three-phase gate pre-driver for external N-channel MOSFETs
- Supports PWM control up to 20 kHz
- Integrated charge pump (no bootstrap capacitor required)
- High-side and low-side gate drive capability
- SPI interface for configuration and diagnostics
- Integrated current-sense amplifier and comparator
- Configurable gain via external resistors
- Built-in MCU reset generator
- Phase comparators for commutation feedback
- Automotive-grade reliability (Q1 qualified)
Pinouts
Design Notes
- Requires six external N-channel MOSFETs to form a full 3-phase inverter bridge
- Gate resistor selection is critical for controlling switching speed and EMI
- Charge pump eliminates bootstrap limitations, allowing 100% duty cycle operation
- Current sensing is high-side referenced, simplifying ground layout and improving accuracy
- SPI configuration allows dynamic tuning (dead time, protection thresholds, gain)
- PCB layout must minimize gate loop inductance to prevent ringing and false triggering
- Thermal design depends primarily on external MOSFETs, not the driver itself
Advantages
- Flexible power stage design using external MOSFETs
- No bootstrap capacitor → improved reliability at high duty cycles
- Comprehensive diagnostics for functional safety systems
- High-side current sensing simplifies system architecture
- SPI-based configurability enables advanced motor control strategies
Typical Applications
- Automotive oil pumps
- Electric water pumps
- Cooling fans and blowers
- Fuel pumps
- Industrial BLDC motor control
Alternative / Equivalent Products
- DRV8301-Q1 – Integrated gate driver with buck regulator (TI)
- DRV8353-Q1 – Advanced 3-phase gate driver with protection features
- MC33937 – NXP 3-phase pre-driver
- TLE9180 – Infineon gate driver IC
- IR2136 – Classic 3-phase gate driver (non-automotive)
Other data sheets are available within the file: DRV3203, DRV3203Q1
DRV3203-Q1 Datasheet PDF Download
