1 Features

• Three phase half-bridge gate driver

– Drives six N-channel MOSFETs (NMOS)

– 8 to 85V wide operating voltage range

– Bootstrap architecture for high-side gate driver

– Supports 50mA average gate switching current

enables driving 400nC MOSFETs at 20kHz

– Trickle charge pump to support 100% PWM

duty cycle and to generate overdrive supply

to drive external cut-off or reverse polarity

protection circuit

• Smart Gate Drive architecture

– 15-level configurable peak gate drive current up

to 1000 / 2000mA (source / sink)

– Closed-loop automatic deadtime insertion

based on gate-source voltage monitoring

– Configurable soft shutdown to minimize

inductive voltage spikes during overcurrent

shutdown

• Low-side Current Sense Amplifier

– 1mV low input offset across temperature

– 4-level adjustable gain

– Adjustable output bias to support unidirectional

or bidirectional sensing

• SPI-based detailed configuration and diagnostics

• DRVOFF pin to disable driver independently

• High voltage wake up pin (nSLEEP)

• Dedicated ASCIN pin to control motor braking

(active short circuit)

• 6x, 3x, 1x, and Independent PWM Modes

• Supports 3.3V and 5V Logic Inputs

• Integrated protection features

– Battery and power supply voltage monitors

– MOSFET VDS and Rsense over current monitors

– MOSFET VGS gate fault monitors

– Device thermal warning and shutdown

– Fault condition indicator pin

2 Applications

• Appliances, Cordless Garden and Power Tools,

Lawnmowers

• Brushless-DC (BLDC) Motor Modules and PMSM

• Fans, Pumps, and Servo Drives

• E-Bikes, E-Scooters, and E-Mobility

• Cordless Vacuum Cleaners

• Drones, Industrial & Logistics Robots, and RC

Toys

3 Description

The DRV8363 is an integrated smart gate driver

for 48V three-phase BLDC applications. The device

provides three half-bridge gate drivers, each capable

of driving high-side and low-side N-channel power

MOSFETs. The DRV8363 generates the correct

gate drive voltages using an external 12V supply

and an integrated bootstrap diode for the highside

MOSFETs. The Smart Gate Drive architecture

supports configurable peak gate drive current from

16mA up to 1A source and 2A sink. The DRV8363

can operate with a wide input range from 8V to 85V

at the motor connection. A trickle charge pump allows

for the gate drivers to support 100% PWM duty cycle

control and provides overdrive gate drive voltage of

external switches.

The DRV8363 provides low-side current sense

amplifiers to support resistor based low-side

current sensing. The low offset of the amplifiers

enables the system to obtain precise motor current

measurements.

A wide range of diagnostics and protection features

are integrated with the DRV8363 enables a robust

motor drive system design and helps eliminate the

need of external components. The highly configurable

device response allows the device to be integrated

seamlessly into a variety of system designs.