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DRV8305 Three-Phase Gate Drivers

Texas Instruments offers its DRV8305, three-phase gate driver with three integrated current shunt amplifiers

Image of Texas Instruments' DRV8305 Three-Phase Gate DriversTexas Instruments' DRV8305 device is a gate driver IC for three-phase, motor-drive applications. The device provides three high-accuracy and temperature-compensated, half-bridge drivers that are each capable of driving a high-side and low-side N-channel MOSFET. A charge-pump driver supports 100% duty cycle and low-voltage operation. The device can tolerate load-dump voltages up to 45 V.

The DRV8305 device includes three bidirectional current-shunt amplifiers for accurate, low-side current measurements that support variable gain settings and an adjustable offset reference.

The DRV8305 device has an integrated voltage regulator (3.3 V or 5 V) 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 gate driver uses automatic handshaking when switching to prevent current shoot through. The VDS of both the high-side and low-side MOSFETs is accurately sensed to protect the external MOSFETs from over-current conditions. The SPI provides detailed fault reporting, diagnostics, and device configurations such as gain options for the current-shunt amplifier, individual MOSFET over-current detection, and gate-drive slew-rate control.

Device options include the following: DRV8305N voltage reference; DRV83053, 3.3 V, 50 mA LDO; and DRV83055, 5 V, 50 mA LDO.

Features
  • 4.4 V to 45 V operating voltage
  • 1.25 A and 1 A 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 50 mA LDO (3.3 V and 5 V options) 
  • 3 PWM or 6 PWM input control up to 200 kHz 
  • Single PWM-mode commutation capability
  • Supports both 3.3 V and 5 V 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 over-current monitors
    • Gate-driver fault detection
    • Reverse battery-protection support
    • Limp home-mode support
    • Over-temperature warning and shutdown

DRV8305 Three-Phase Gate Drivers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC MTR DRV MULTI 4.4-45V 48HTQFPDRV83053QPHPRQ1IC MTR DRV MULTI 4.4-45V 48HTQFP2629 - Immediate
10001 - Factory Stock
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IC MTR DRV MULTI 4.4-45V 48HTQFPDRV83055QPHPRQ1IC MTR DRV MULTI 4.4-45V 48HTQFP0View Details
IC MTR DRV MULTI 4.4-45V 48HTQFPDRV8305NEPHPRQ1IC MTR DRV MULTI 4.4-45V 48HTQFP344 - ImmediateView Details
IC MTR DRV MULTI 4.4-45V 48HTQFPDRV8305NQPHPRQ1IC MTR DRV MULTI 4.4-45V 48HTQFP805 - ImmediateView Details
IC MTR DRV MULTI 4.4-45V 48HTQFPDRV83053PHPRIC MTR DRV MULTI 4.4-45V 48HTQFP969 - Immediate
10001 - Factory Stock
View Details
IC MTR DRV MULTI 4.4-45V 48HTQFPDRV83055PHPRIC MTR DRV MULTI 4.4-45V 48HTQFP0View Details
IC MTR DRV MULTI 4.4-45V 48HTQFPDRV8305NPHPRIC MTR DRV MULTI 4.4-45V 48HTQFP9519 - Immediate
10001 - Factory Stock
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Evaluation Board

ImageManufacturer Part NumberDescriptionPlatformFunctionAvailable QuantityView Details
EVAL MODULE BOOSTXL-DRV8305BOOSTXL-DRV8305EVMEVAL MODULE BOOSTXL-DRV8305LaunchPad™Motor Controller/Driver77 - Immediate
131 - Factory Stock
View Details
Published: 2016-08-11