DRV8317 provides three integrated MOSFET
half-bridges for driving three-phase brushless DC (BLDC) motors with
5-V, 9-V, 12-V, or 18-V DC rails or 2s to 4s batteries. The device
provides integrated three-phase current sensing which eliminates the
need for external sense resistors. DRV8317 has an integrated LDO
that provides a regulated 3.3-V rail capable of delivering up to
80mA for external loads like MCU, logic circuits, hall sensors
etc.,
DRV8317 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 trapezoidal control using an external
microcontroller. DRV8317 is capable of driving a PWM frequency of up
to 200 kHz. DRV8317 is highly configurable either through SPI
(DRV8317S) or pins (DRV8317H) - PWM mode, slew rate, current sense
gain are some of the configurable features.
A number of protection
features including supply under voltage lockout (UVLO), over voltage
protection (OVP), charge pump under voltage (CPUV), over current
protection (OCP), over temperature warning (OTW) and over
temperature shutdown (OTS) are integrated into DRV8317 to protect
the device, motor, and system against fault events. Fault conditions
are indicated by the nFAULT pin.
DRV8317 provides three integrated MOSFET
half-bridges for driving three-phase brushless DC (BLDC) motors with
5-V, 9-V, 12-V, or 18-V DC rails or 2s to 4s batteries. The device
provides integrated three-phase current sensing which eliminates the
need for external sense resistors. DRV8317 has an integrated LDO
that provides a regulated 3.3-V rail capable of delivering up to
80mA for external loads like MCU, logic circuits, hall sensors
etc.,
DRV8317 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 trapezoidal control using an external
microcontroller. DRV8317 is capable of driving a PWM frequency of up
to 200 kHz. DRV8317 is highly configurable either through SPI
(DRV8317S) or pins (DRV8317H) - PWM mode, slew rate, current sense
gain are some of the configurable features.
A number of protection
features including supply under voltage lockout (UVLO), over voltage
protection (OVP), charge pump under voltage (CPUV), over current
protection (OCP), over temperature warning (OTW) and over
temperature shutdown (OTS) are integrated into DRV8317 to protect
the device, motor, and system against fault events. Fault conditions
are indicated by the nFAULT pin.