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Texas Instruments DRV8343x-Q1 Automotive 3-Phase Smart Gate Drivers

Texas Instruments DRV8343x-Q1 Automotive, 60V, Smart Gate Drivers provide three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The DRV8343S-Q1 has an SPI interface, while the DRV8343H-Q1 offers a hardware interface. The independent MOSFET control is enabled using the dedicated Source and Drain pins for solenoid application.

The DRV8343-Q1 employs an integrated charge pump generating the correct gate drive voltages, sufficient for the high-side MOSFETs and a linear regulator for the low-side MOSFETs. Peak gate drive currents up to 1A source and 2A are supported through the Smart Gate Drive. The device features a wide input supply range of 5.5 to 60V for the gate driver and operates from a single power supply. The Texas Instruments DRV8343-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1 (–40°C ≤ TA ≤ 125°C)
  • Three independent half-bridge gate driver
    • Dedicated source (SHx) and drain (DLx) pins to support independent MOSFET control
    • Drives three high-side and three low-side N-channel MOSFETs (NMOS)
  • Smart gate drive architecture
    • Adjustable slew rate control
    • 1.5mA to 1A peak source current
    • 3mA to 2A peak sink current
  • Charge-pump of gate driver for 100% Duty Cycle
  • 3 Integrated current sense amplifiers (CSAs)
    • Adjustable gain (5, 10, 20, 40V/V)
    • Bidirectional or unidirectional support
  • SPI (S) and hardware (H) interfaces available
  • 6x, 3x, 1x, and independent PWM modes
  • Supports 3.3V, and 5V logic inputs
  • Charge pump output can be used to drive the reverse supply protection MOSFET
  • Linear voltage regulator, 3.3V, 30mA
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Short to battery (SHT_BAT)
    • Short to ground (SHT_GND)
    • MOSFET overcurrent protection (OCP)
    • Gate driver fault (GDF)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indicator (nFAULT)

Applications

  • 12V and 24V automotive motor-control applications
  • BLDC and BDC motor modules
  • Fans and blowers
  • Fuel and water pumps
  • Solenoid drive

DRV8343H-Q1 Block Diagram

Block Diagram - Texas Instruments DRV8343x-Q1 Automotive 3-Phase Smart Gate Drivers

DRV8343S-Q1 Block Diagram

Block Diagram - Texas Instruments DRV8343x-Q1 Automotive 3-Phase Smart Gate Drivers

Evaluation Modules

Texas Instruments DRV8343x-Q1EVM Evaluation Modules

Designed to evaluate the DRV8343x-Q1 Automotive 3-phase Smart Gate Drivers.

Learn Moreabout Texas Instruments DRV8343x-Q1EVM Evaluation Modules View Productsrelated to Texas Instruments DRV8343x-Q1EVM Evaluation Modules
Published: 2019-05-17 | Updated: 2023-09-14