3-Phase Brushless Motor Pre-Driver with Dual Current Sense Amps and Buck Converter (PWM Ctrl w/ SPI) - DRV8301


3-Phase Brushless Motor Pre-Driver with Dual Current Sense Amps and Buck Converter (PWM Ctrl w/ SPI)


The DRV8301 is a gate driver IC for three-phase motor drive applications. The device provides three half-bridge drivers, each capable of driving two N-channel MOSFETs. The DRV8301 supports up to 1.7-A source and 2.3-A peak current capability. The DRV8301 can operate off of a single power supply with a wide range from 6-V to 60-V. The device uses a bootstrap gate driver architecture with trickle charge circuitry to support 100% duty cycle. The DRV8301 uses automatic hand-shaking when the high-side or low-side MOSFET is switching to prevent flow of current. Integrated VDS sensing of the high-side and low-side MOSFETs is used to protect the external power stage against overcurrent conditions.

The DRV8301 includes two current shunt amplifiers for accurate current measurement. The amplifiers support bidirectional current sensing and provide an adjustable output offset up to 3 V.

The DRV8301 also includes an integrated switching mode buck converter with adjustable output and switching frequency. The buck converter can provide up to 1.5 A to support MCU or additional system power needs.

The SPI interface provides detailed fault reporting and flexible parameter settings such as gain options for the current shunt amplifiers and slew rate control of the gate drivers.


  • 6-V to 60-V Operating Supply Voltage Range
  • 1.7-A Source and 2.3-A Sink Gate Drive Current
  • Slew Rate Control for EMI Reduction
  • Bootstrap Gate Driver With 100% Duty Cycle Support
  • 6- or 3-PWM Input Modes
  • Dual Integrated Current Shunt Amplifiers With
    Adjustable Gain and Offset
  • Integrated 1.5-A Buck Converter
  • 3.3-V and 5-V Interface Support
  • SPI Interface
  • Protection Features:
    • Programmable Dead Time Control (DTC)
    • Programmable Overcurrent Protection (OCP)
    • PVDD and GVDD Undervoltage Lockout (UVLO)
    • GVDD Overvoltage Lockout (OVLO)
    • Overtemperature Warning/Shutdown (OTW/OTS)
    • Reported Through nFAULT, nOCTW, and SPI Registers

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Parametrics Compare all products in Brushless DC Gate Drivers

Vs (Min) (V)
Vs (Max) (V)
Gate Drive (A)
# of half-bridges
Current Sense Amps
Control I/F
Additional Features
Operating Temperature Range (C)
Approx. Price (US$)
DRV8301 DRV8302 DRV8303
6     6     6    
60     60     60    
1.7     1.7     1.7    
3     3     3    
2     2     2    
PWM     PWM     PWM    
Buck Step Down Converter
SPI Management I/F    
Buck Step Down Converter
Hardware Management I/F    
SPI Management I/F    
Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125    
56HTSSOP     56HTSSOP     48HTSSOP    
2.50 | 1ku     2.50 | 1ku     1.95 | 1ku    

Other qualified versions of DRV8301

Version Part Number Definition
Automotive DRV8301-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

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