DRV8317
SLVSGT3 – DECEMBER 2022
DRV8317 Three-Phase PWM Motor Driver
1 Features
3 Description
•
Three-phase BLDC motor driver
– Configurable slew rate for EMI mitigation
– Programmable gain current sensing
– Supports up to 200-kHz PWM frequency
– Integrated shoot through protection
4.5-V to 20-V operating voltage
– 24-V absolute maximum voltage
High output current capability
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.,
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•
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– 5-A peak current drive
Low on-state resistance MOSFETs
– RDS(ON) (HS + LS) at TA = 25°C : 130-mΩ
(typical)
Ultra-low Q-current sleep mode
– 3-µA (max.) at VVM = 12-V, TA = 25°C
Multiple control interface options
– 6x PWM control interface
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.
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– 3x PWM control interface
Integrated current sensing
•
•
– No external current sense resistor required
– Three-phase current sense outputs
SPI and hardware device variants
– 10-MHz SPI interface variant for flexibility
– Pin configurable variant for simplicity
Supports 1.8-V, 3.3-V, and 5-V logic inputs
Built-in 3.3-V ± 4.5%, 80-mA LDO regulator
Integrated protection 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.
•
•
•
– VM under voltage lockout (UVLO)
– VM over voltage protection (OVP)
– Charge pump under voltage (CPUV)
– Over current protection (OCP)
– Over temperature warning and shutdown
(OTW/OTS)
Device Variant Information(1)
PART NUMBER
DRV8317S(2)
DRV8317H
PACKAGE
WQFN (36)
WQFN (36)
BODY SIZE (NOM)
5.00 mm × 4.00 mm
5.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
– Fault condition indication pin (nFAULT)
(2) Device available for preview only.
2 Applications
4.5 to 20-V (24-V abs max)
LDO out
3.3V, up to 80mA
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Brushless-DC (BLDC) Motor Modules
Air Purifiers
Dishwasher Pumps
6x / 3x PWM
PWM input
DRV8317S/H
A
B
C
nSLEEP
Charge Pump
Vacuum Robots
SPI
Only on SPI variant
Built-in Protec on
LDO Regulator
Washer and Dryer Pumps
Drones and Hand-held Gimbals
Laptop, Desktop, and Server Fans
Coffee Machines
MCU
CSA out
3x current feedback
5-A peak output current
nFAULT
Integrated Current Sensing
Figure 3-1. DRV8317S/H Simplified Schematic
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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