40-V max 8-A peak 3-phase motor driver with integrated current sensing, FETs, and enhanced CSA specs

DRV8316C

integrates three H-bridges with 40-V absolute maximum capability and a very low

RDS(ON) of 95 mΩ (high-side + low-side) to enable high power drive

capability for 12-V/24-V brushless-DC motors. DRV8316C provides integrated current

sensing which eliminates the need for external sense resistors. DRV8316C integrates

power management circuits including an voltage-adjustable buck regulator (3.3 V / 5

V, 200-mA) and LDO (3.3 V / 30 mA) that can be used to power external circuits.

DRV8316C

provides a configurable 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 microcontroller. DRV8316C is capable of driving

a PWM frequency of up to 200 kHz. DRV8316C is highly configurable either through SPI

(DRV8316CR) or pins (DRV8316CT) - PWM mode. slew rate, OCP level, current sense gain

are some of the configurable features.

A number of protection features

including supply undervoltage lockout (UVLO), overvoltage protection (OVP), charge

pump undervoltage (CPUV), overcurrent protection (OCP), over-temperature warning

(OTW) and over-temperature shutdown (OTSD) are integrated into DRV8316C to protect the device, motor, and system

against fault events. Fault conditions are indicated by the nFAULT pin.

Refer Section 9.1 for design consideration and recommendation on device usage.