Texas Instruments DRV8305 / DRV8305-Q1 Three-Phase Gate Driver

Texas Instruments DRV8305 / DRV8305-Q1 Three-Phase Gate Driver is a gate driver IC for three phase motor drive applications. This device provides three high-accuracy trimmed and temperature compensated half-bridge drivers, each capable of driving a high-side and low-side N-type MOSFET. A charge pump driver supports 100% duty cycle and low voltage operation. The gate driver can also handle load dumps up to 45V. The DRV8305 device includes three bi-directional current shunt amplifiers for accurate low-side current measurements that support variable gain settings and an adjustable offset reference. The device has an integrated voltage regulator (3.3V or 5V) to support an MCU or other system power requirements. The voltage regulator can be interfaced directly with a standard LIN physical interface to allow low system standby and sleep currents. The DRV8305-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • 4.4V to 45V Operating voltage
  • 1.25A and 1A Peak gate drive currents
  • Programmable high- and low-side slew-rate control
  • Charge-pump gate driver for 100% duty cycle
  • Three integrated current-shunt amplifiers
  • Integrated 50mA LDO (3.3V and 5V option)
  • 3-PWM or 6-PWM input control up to 200kHz
  • Single PWM-mode commutation capability
  • Supports Both 3.3V and 5V digital interface
  • Serial Peripheral Interface (SPI) for device settings and fault reporting
  • Thermally-enhanced 48-Pin HTQFP
  • Protection features
    • Fault diagnostics and MCU watchdog
    • Programmable dead-time control
    • MOSFET Shoot-through prevention
    • MOSFET VDS Overcurrent monitors
    • Gate-driver fault detection
    • Reverse battery-protection support
    • Limp home-mode support
    • Overtemperature warning and shutdown

Applications

  • Three-phase BLDC and PMSM motors
  • CPAP and pumps
  • Robotics and RC toys
  • Power tools
  • Industrial automation

Videos

Simplified Schematic

Schematic - Texas Instruments DRV8305 / DRV8305-Q1 Three-Phase Gate Driver
Inilathala: 2015-11-10 | Na-update: 2022-09-22