Texas Instruments DRV8311 Handleiding
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DRV8311 Three-Phase PWM Motor Driver
1 Features
•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 R
DS(ON)
(HS + LS) at T
A
= 25°C
•Low power sleep mode
–1.5-µA at V
VM
= 12-V, T
A
= 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
•tSPI interface (DRV8311P)
–PWM duty and frequency update over SPI
–Control multiple DRV8311P devices using
standard 4-wire SPI interface
•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
•Brushless-DC (BLDC) Motor Modules
•Drones and Handheld Gimbal
•Coffee Machines
•Vacuum Robots
•Washer and Dryer Pumps
•Laptop, Desktop, and Server Fans
3 Description
The DRV8311 provides three integrated MOSFET
half-H-bridges for driving a three-phase brushless DC
(BLDC) motor for 5-V, 9-V, 12-V, or 18-V 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 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 interface. This feature
reduces the number of required I/O ports from the
primary controller to control multiple motors.
Device Information
(1)
PART NUMBERPACKAGEBODY SIZE (NOM)
DRV8311HWQFN (24)3.00 mm × 3.00 mm
DRV8311S
(2)
WQFN (24)3.00 mm × 3.00 mm
DRV8311PWQFN (24)3.00 mm × 3.00 mm
(1)For all available packages, see the orderable addendum at
the end of the data sheet.
(2)Device available for preview only.
nSLEEP
PWM input
6x / 3x PWM
CSA out
3x voltage feedback
nFAULT
A
B
C
3- to 20-V (24-V abs max)
5-A peak output current
LDO out
3.3V up to 100mA
DRV8311H/S
MOSFETs
LDO Regulator
Integrated Current Sensing
Built-in Protec
on
Charge Pump
MCU
Only on H variant
SPI
Only on SPI variant
DRV8311H/S Simplified Schematic
nSLEEP
CSA out
3x voltage feedback
nFAULT
A
B
C
3- to 20-V (24-V abs max)
5-A peak output current
LDO out
3.3V up to 100mA
DRV8311P
MOSFETs
LDO Regulator
Integrated Current Sensing
Built-in Protec
on
Charge Pump
MCU
tSPI
Motor control
DRV8311P Simplified Schematic
DRV8311
SLVSFN2B – SEPTEMBER 2021 – REVISED FEBRUARY 2022
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.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | DRV8311 |
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