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Texas Instruments DRV8300U Three-Phase Gate Driver

Texas Instruments DRV8300U Three-Phase Gate Driver is 100V three half-bridge gate drivers, capable of driving high-side and low-side N-channel power MOSFETs. The DRV8300UD generates the correct gate drive voltages using an integrated bootstrap diode and external capacitor for the high-side MOSFETs. GVDD is used to generate gate drive voltage for the low-side MOSFETs. The Gate Drive architecture supports peak up to 750mA source and 1.5A sink currents.

The phase pins SHx can tolerate the significant negative voltage transients. At the same time, the high side gate driver supply BSTx and GHx can support higher positive voltage transients (125V) abs max voltage which improves the system’s robustness. Small propagation delay and delay matching specifications minimize the deadtime requirement, further improving efficiency. Undervoltage protection is provided for both the low and high-side of the Texas Instruments DRV8300U through GVDD and BST undervoltage lockout.

Features

100V three-phase half-bridge gate driver
- Drives N-channel MOSFETs (NMOS)
- 5V to 20V gate driver supply (GVDD)
- MOSFET supply (SHx) support up to 100V
Integrated bootstrap diodes (DRV8300UD devices)
Supports inverting and non-inverting INLx inputs
Bootstrap gate drive architecture
- 750mA source current
- 1.5A sink current
Supports up to 15S battery-powered applications
Higher BSTUV (8V typ.) and GVDDUV (7.6V typ.) threshold to support standard MOSFETs
Low leakage current on SHx pins (< 55µA)

Absolute maximum BSTx voltage up to 125V
Supports negative transients up to -22V on SHx
Built-in cross-conduction prevention
Adjustable deadtime through DT pin for QFN package variants
Fixed deadtime insertion of 200nS for TSSOP package variants
Supports 3.3V and 5V logic inputs with 20V Abs max
4nS typical propagation delay matching
Compact QFN and TSSOP packages
Efficient system design with power blocks
Integrated protection features
- BST undervoltage lockout (BSTUV)
- GVDD undervoltage (GVDDUV)

Applications

E-bikes, E-scooters, and E-mobility
Fans, pumps, and servo drives
Brushless-DC (BLDC) motor modules and PMSM
Cordless garden and power tools, lawnmowers

Cordless vacuum cleaners
Drones, robotics, and RC toys
Industrial and logistics robots

Texas Instruments DRV8300U Three-Phase Gate Driver

Features

Applications

Simplified Schematic

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