The DRV8316C device is an integrated 95-mΩ (high-side + low-side MOSFET's on-state resistance) driver for 3-phase motor-drive applications. The device reduces system component count, cost, and complexity by integrating three half-bridge MOSFETs, gate drivers, charge pump, current sense amplifiers, linear regulator and buck regulator for external loads. A standard serial peripheral interface (SPI) provides a simple method for configuring the various device settings and reading fault diagnostic information through an external microcontroller. Alternatively, a hardware interface (pin) variant allows for configuring the most commonly used settings through fixed external resistors.

The architecture uses an internal state machine to protect against short-circuit events and dv/dt parasitic turn-on of the internal power MOSFETs.

The DRV8316C device integrates three, bidirectional current-sense amplifiers for monitoring the current level through each of the half-bridges using a built-in current sense. The gain setting of the amplifier can be adjusted through the SPI or hardware interface.

In addition to the high level of device integration, DRV8316C provides a wide range of integrated protection features. These features include power-supply undervoltage lockout (UVLO), charge-pump undervoltage lockout (CPUV), overcurrent protection (OCP), AVDD undervoltage lockout (AVDD_UV), buck regulator UVLO and overtemperature warning and shutdown (OTW and OTSD). Fault events are indicated by the nFAULT pin with detailed information available in the SPI registers on the SPI variant.

The DRV8316CT and DRV8316CR device are available in 0.5-mm pin pitch, VQFN surface-mount packages. The VQFN package size is 7 mm × 5 mm.