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DRV8311S

更新时间： 2024-11-06 02:50:55
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德州仪器 - TI /
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DRV8311 Three-Phase PWM Motor Driver

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DRV8311  
SLVSFN2 – SEPTEMBER 2021  
DRV8311 Three-Phase PWM Motor Driver  
1 Features  
3 Description  
•
•
•
•
•
•
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  
– 200-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  
The DRV8311 provides three integrated MOSFET  
half-H-bridges for driving a three-phase brushless DC  
(BLDC) motor for 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.  
– 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-H  
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)  
Device Information(1)  
•
PART NUMBER  
DRV8311H  
PACKAGE  
BODY SIZE (NOM)  
3.00 mm × 3.00 mm  
3.00 mm × 3.00 mm  
3.00 mm × 3.00 mm  
WQFN (24)  
DRV8311S(2)  
WQFN (24)  
WQFN (24)  
DRV8311P  
•
•
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
(2) Device available for preview only.  
•
3- to 20-V (24-V abs max)  
LDO out  
3.3V up to 100mA  
6x / 3x PWM  
PWM input  
DRV8311H/S  
•
•
•
A
B
C
nSLEEP  
Only on H variant  
Charge Pump  
SPI  
Only on SPI variant  
Built-in Protec on  
LDO Regulator  
MCU  
CSA out  
3x voltage feedback  
nFAULT  
5-A peak output current  
Integrated Current Sensing  
– Thermal warning and shutdown (OTW/OTSD)  
– Fault condition indication pin (nFAULT)  
DRV8311H/S Simplified Schematic  
2 Applications  
3- to 20-V (24-V abs max)  
LDO out  
•
•
•
•
•
•
Brushless-DC (BLDC) Motor Modules  
Drones and Handheld Gimbal  
Coffee Machines  
Vacuum Robots  
Washer and Dryer Pumps  
Laptop, Desktop, and Server Fans  
3.3V up to 100mA  
nSLEEP  
DRV8311P  
A
B
C
Charge Pump  
tSPI  
Motor control  
Built-in Protec on  
LDO Regulator  
MCU  
CSA out  
3x voltage feedback  
5-A peak output current  
nFAULT  
Integrated Current Sensing  
DRV8311P 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. ADVANCE INFORMATION for preproduction products; subject to change  
without notice.  
 
 
 
 
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