Automotive 40-V max 8-A peak three-phase motor driver with integrated current sensing

The DRV8316-Q1 provides a single-chip power stage solution for customers driving 12-V

brushless-DC motors up to 40-W. The DRV8316-Q1 integrates three 1/2-H bridges with

40-V absolute maximum capability and a very low RDS(ON) of 95mOhms (high-side plus

low-side) to enable high power drive capability. Current is sensed using an

integrated current sensing feature which eliminates the need for external sense

resistors. Power management features of an adjustable buck regulator and LDO

generate the necessary voltage rails for the device and can be used to power

external circuits.

DRV8316-Q1 implements a 6x or 3x PWM control scheme which can be used to implement

sensored or sensorless field-oriented control (FOC), sinusoidal control, or

trapezoid control using an external microcontroler. The DRV8316-Q1 is capable of

driving a PWM frequency up to 200 kHz. The control scheme is highly configurable

through hardware pins or register settings ranging from motor current limiting

behavior to fault response.

There are a large number of protection features integrated into the DRV8316-Q1,

intended to protect the device, motor, and system against fault events.