Texas Instruments DRV3233-Q1 Smart Gate Driver

Texas Instruments DRV3233-Q1 Smart Gate Driver is designed for 12V and 24V automotive three-phase BLDC applications. This driver includes three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The DRV3233-Q1 driver consists of the low-side current sense amplifier that supports resistor-based low-side current sensing. This driver features detailed SPI configuration and diagnostics. The DRV3233-Q1 driver is AEC-Q100 qualified for automotive applications. This driver is used in automotive pumps, electrical mechanical brakes, electrical power steering, and brake boost assist applications.

Features

AEC-Q100 qualified for automotive applications:
- -40°C to 150°C, T_A
Functional safety-compliant targeted:
- Developed for functional safety applications
- Documentations to aid ISO 26262 system design will be available
- Systematic capability up to ASIL D targeted
Smart gate drive architecture:
- 45-level configurable peak gate drive current up to 1000mA/2000mA (source/sink)
- 3-step dynamic drive current control
Soft shutdown for power stage protection
Three-phase half-bridge gate driver:
- Drives 6 N-channel MOSFETs (NMOS)
- 4.5V to 60V architecture for high-side gate driver
- Charge pump for 50mA average gate current
- 100% PWM duty cycle support
- Overdrive supply of external switches

Low-side current sense amplifier:
- Sub-1mV low input offset across temperature
- 9-level adjustable gain
Advanced and configurable protection functions:
- Battery and power supply voltage monitors
- Phase feedback comparator
- MOSFET V_DS and R_sense over current monitors
- Analog built-in-self-test, clock monitors
- Fault condition indicator pin
SPI-based detailed configuration and diagnostics
DRVOFF pin to disable driver independently
High voltage wake up pin (nSLEEP)
Supports 3.3V and 5V logic inputs
Multiple PWM interface options available:
- 6x, 3x, and 1x PWM modes
- PWM over SPI

Applications

12V/24V automotive motor control requirements:
- Automotive pumps
- Transmission and shift-by-wire
- Electrical power steering and steer-by-wire
- Electrical mechanical brake, brake boost assist, and brake-by-wire