The DRV871x-Q1 family of devices are highly
integrated, multi-channel gate drivers intended for driving multiple motors or loads. The
devices integrate either 4 (DRV8714-Q1) or 8 (DRV8718-Q1) half-bridge gate drivers, driver
power supplies, current shunt amplifiers, and protection monitors reducing total system
complexity, size, and cost.
A smart gate drive architecture manages dead
time to prevent shoot-through, controls slew rate to decrease electromagnetic interference
(EMI), and optimizes propagation delay for enhanced performance.
Input modes are provided for independent
half-bridge or H-bridge control. Four PWM inputs can be multiplexed between the different
drivers in combination with SPI control.
Wide common mode shunt amplifiers provide
inline current sensing to continuously measure motor current even during recirculating
windows. The amplifier can be used in low-side or high-side sense configurations if inline
sensing is not required.
The devices provide an array of protection
features to promote robust system operation. These include under and overvoltage monitors,
VDS overcurrent and VGS gate fault monitors for the external
MOSFETs, offline open load and short circuit diagnostics, and internal thermal warning and
shutdown protection.
The DRV871x-Q1 family of devices are highly
integrated, multi-channel gate drivers intended for driving multiple motors or loads. The
devices integrate either 4 (DRV8714-Q1) or 8 (DRV8718-Q1) half-bridge gate drivers, driver
power supplies, current shunt amplifiers, and protection monitors reducing total system
complexity, size, and cost.
A smart gate drive architecture manages dead
time to prevent shoot-through, controls slew rate to decrease electromagnetic interference
(EMI), and optimizes propagation delay for enhanced performance.
Input modes are provided for independent
half-bridge or H-bridge control. Four PWM inputs can be multiplexed between the different
drivers in combination with SPI control.
Wide common mode shunt amplifiers provide
inline current sensing to continuously measure motor current even during recirculating
windows. The amplifier can be used in low-side or high-side sense configurations if inline
sensing is not required.
The devices provide an array of protection
features to promote robust system operation. These include under and overvoltage monitors,
VDS overcurrent and VGS gate fault monitors for the external
MOSFETs, offline open load and short circuit diagnostics, and internal thermal warning and
shutdown protection.