1 Features

• AEC-Q100 qualified for automotive applications

– Temperature grade 1: –40°C ≤ TA ≤ 125°C

• Three-phase PWM motor driver

– 3-Phase brushless DC motors

• 3-V to 20-V operating voltage

– 24-V Absolute maximum voltage

• High output current capability

– 5-A Peak current drive

• Low on-state resistance MOSFETs

– 210-mΩ typ RDS(ON) (HS + LS) at TA = 25°C

• Low power sleep mode

– 1.5-μA at VVM = 12-V, TA = 25°C

• Multiple control interface options

– 6x PWM control interface

– 3x PWM control interface

– PWM generation mode (SPI/tSPI) with optional

calibration between MCU and DRV8311-Q1

• tSPI (DRV8311P-Q1)

– PWM duty and frequency update over SPI

– Control multiple DRV8311P-Q1 devices using

standard 4-wire SPI

• Supports up to 200-kHz PWM frequency

• Integrated current sensing

– No external resistor required

– Sense amplifier output, one per 1/2-bridge

• SPI and hardware device variants

– 10-MHz SPI communication (SPI/tSPI)

• Supports 1.8-V, 3.3-V, and 5-V logic inputs

• Built-in 3.3-V ± 4.5%, 100-mA LDO regulator

• Integrated protection features

– VM undervoltage lockout (UVLO)

– Charge pump undervoltage (CPUV)

– Overcurrent protection (OCP)

– Thermal warning and shutdown (OTW/OTSD)

– Fault condition indication pin (nFAULT)

2 Applications

• Steering wheel adjust module

• Automotive thermal management valve

• LIDAR module

• Brushless-DC (BLDC) Motor Modules

3 Description

The DRV8311-Q1 provides three integrated MOSFET

half-H-bridges for driving a three-phase brushless DC

(BLDC) motor for 5V, 9V, 12V, or 18V DC rails or

1S to 4S battery powered applications. The device

integrates three current-sense amplifiers (CSA) with

integrated current sense for sensing the three phase

currents of BLDC motors to achieve optimum FOC

and current-control system implementation.

The DRV8311P-Q1 device provides capability to

generate and configure PWM timers over Texas

Instruments SPI (tSPI), and allows the control of

multiple BLDC motors directly over the tSPI. This

feature reduces the number of required I/O ports from

the primary controller to control multiple motors.