Specifications
| Type | Description |
|---|---|
| Part Number | DRV8311 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | 24-pin WQFN, 3.00 mm x 3.00 mm body |
| Motor Driver Topology | Three integrated MOSFET half-H-bridges; for three-phase BLDC motor drive |
| Supported Motor Type | 3-phase brushless DC motors; application/use case |
| Operating Voltage | 3 V to 20 V; VM motor supply operating range |
| Absolute Maximum Voltage | 24 V; VM supply absolute maximum |
| Peak Output Current | 5 A; output current drive capability |
| MOSFET On-State Resistance | 210 mOhm typ; high-side plus low-side RDS(ON), TA=25°C |
| Sleep Mode Current | 1.5 uA; VM=12 V, TA=25°C |
| PWM Control Interfaces | 6x PWM, 3x PWM, PWM generation mode; PWM generation mode via SPI/tSPI |
| PWM Frequency Support | Up to 200 kHz; PWM operation |
| Current Sensing | Integrated current sensing, no external resistor required; sense amplifier output provided per half-bridge |
| Current Sense Amplifier Outputs | 3 outputs: SOA, SOB, SOC; one CSA output for OUTA, OUTB, and OUTC |
| SPI Communication Speed | 10 MHz; SPI/tSPI communication |
| Logic Input Compatibility | 1.8 V, 3.3 V, and 5 V logic inputs; digital interface inputs |
| Integrated LDO Output Voltage | 3.3 V ±4.5%; built-in regulator output AVDD |
| Integrated LDO Output Current | Up to 100 mA; AVDD regulator external load capability |
| Protection Feature | VM undervoltage lockout; integrated protection |
| Protection Feature | Charge pump undervoltage protection; integrated protection |
| Protection Feature | Overcurrent protection; integrated protection |
| Protection Feature | Thermal warning and thermal shutdown; OTW/OTSD integrated protection |
| Fault Indication | nFAULT pin, open-drain active-low output; pulled logic-low with fault condition; requires external pullup to AVDD |
| Device Variants | DRV8311H, DRV8311S, DRV8311P; 24-pin WQFN variants |
| DRV8311P Interface | SPI / tSPI; device comparison table |
| DRV8311S Interface | SPI; device comparison table |
| DRV8311H Interface | Hardware; device comparison table |
| DRV8311P nSLEEP Input | Yes; device comparison table |
| DRV8311S nSLEEP Input | No; device comparison table |
| DRV8311H nSLEEP Input | Yes; device comparison table |
| DRV8311P tSPI Capability | Available; Texas Instruments SPI motor-control interface |
| DRV8311P Address Pins | AD0 and AD1; address selection for tSPI |
| DRV8311P PWM Synchronization Pin | PWM_SYNC; synchronizes internally generated PWM signals to MCU in PWM generation mode |
| DRV8311H PWM Mode Configuration | MODE pin, 2 settings; PWM control mode settings |
| DRV8311S PWM Mode Configuration | PWM_MODE register, 3 settings; PWM control mode settings |
| DRV8311P PWM Mode Configuration | PWM_MODE register, 3 settings; PWM control mode settings |
| DRV8311H Slew Rate Configuration | SLEW pin, 4 settings; OUTx voltage slew rate control |
| DRV8311S Slew Rate Configuration | SLEW_RATE register, 4 settings; slew rate settings |
| DRV8311P Slew Rate Configuration | SLEW_RATE register, 4 settings; slew rate settings |
| DRV8311H CSA Gain Configuration | GAIN pin, 4 settings; current sense amplifier gain setting |
| DRV8311S CSA Gain Configuration | CSA_GAIN register, 4 settings; current sense amplifier gain setting |
| DRV8311P CSA Gain Configuration | CSA_GAIN register, 4 settings; current sense amplifier gain setting |
| DRV8311H OCP Level Configuration | MODE pin, 2 settings; overcurrent protection level settings |
| DRV8311S OCP Level Configuration | OCP_LVL register, 2 settings; overcurrent protection level settings |
| DRV8311P OCP Level Configuration | OCP_LVL register, 2 settings; overcurrent protection level settings |
| DRV8311H OCP Blanking Time | 0.2 us fixed; overcurrent protection blanking time |
| DRV8311S OCP Blanking Time | OCP_TBLANK register, 4 settings; overcurrent protection blanking time |
| DRV8311P OCP Blanking Time | OCP_TBLANK register, 4 settings; overcurrent protection blanking time |
| DRV8311H OCP Deglitch Time | 1 us fixed; overcurrent protection deglitch time |
| DRV8311S OCP Deglitch Time | OCP_DEG register, 4 settings; overcurrent protection deglitch time |
| DRV8311P OCP Deglitch Time | OCP_DEG register, 4 settings; overcurrent protection deglitch time |
| DRV8311H OCP Mode | Fast retry with 5-ms automatic retry; overcurrent protection response mode |
| DRV8311S OCP Mode | OCP_MODE register, 4 settings; configurable retry time; overcurrent protection response mode |
| DRV8311P OCP Mode | OCP_MODE register, 4 settings; configurable retry time; overcurrent protection response mode |
| DRV8311H Dead Time | Fixed based on SLEW pin setting; half-bridge switching dead time |
| DRV8311S Dead Time | TDEAD_CTRL register, 8 settings; half-bridge switching dead time |
| DRV8311P Dead Time | TDEAD_CTRL register, 8 settings; half-bridge switching dead time |
| DRV8311H Driver Delay Compensation | Disabled; configuration comparison table |
| DRV8311S Driver Delay Compensation | DLYCMP_EN register, 2 settings; configuration comparison table |
| DRV8311P Driver Delay Compensation | DLYCMP_EN register, 2 settings; configuration comparison table |
| DRV8311H Spread Spectrum Modulation | Enabled; internal oscillator spread spectrum modulation |
| DRV8311S Spread Spectrum Modulation | SSC_DIS register, 2 settings; internal oscillator spread spectrum modulation |
| DRV8311P Spread Spectrum Modulation | SSC_DIS register, 2 settings; internal oscillator spread spectrum modulation |
| AVDD Capacitor Recommendation | 0.7 uF to 7 uF, 6.3 V ceramic capacitor; X5R or X7R capacitor between AVDD and AGND |
| CP Capacitor Recommendation | 0.1 uF, 16 V ceramic capacitor; X5R or X7R capacitor between CP and VM |
| CSAREF Capacitor Recommendation | 0.1 uF, 6.3 V ceramic capacitor; X5R or X7R capacitor between CSAREF and AGND |
| VM Bypass Capacitor Recommendation | 0.1 uF VM-rated ceramic plus >=10 uF VM-rated bulk capacitor; between VM and PGND |
| VIN_AVDD Bypass Capacitor Recommendation | 0.1 uF VIN_AVDD-rated ceramic plus >=10 uF VIN_AVDD-rated bulk capacitor; between VIN_AVDD and PGND |
| Datasheet Status | request_only |
Product Overview
The DRV8311 is a Texas Instruments three-phase PWM motor driver for 3-phase brushless DC motors. Its power stage uses three integrated MOSFET half-H-bridges, with a VM motor supply operating range of 3 V to 20 V and a VM absolute maximum of 24 V. Output current drive capability is specified at 5 A peak, and the typical high-side plus low-side MOSFET on-state resistance is 210 mOhm at TA=25°C.
The device is supplied in a 24-pin WQFN package with a 3.00 mm x 3.00 mm body. Control options include 6x PWM, 3x PWM, and PWM generation mode, with PWM operation up to 200 kHz. Integrated current sensing provides SOA, SOB, and SOC outputs for OUTA, OUTB, and OUTC, without requiring external sense resistors.
DRV8311 variants include DRV8311H, DRV8311S, and DRV8311P. DRV8311H uses hardware configuration, DRV8311S uses SPI, and DRV8311P supports SPI/tSPI with AD0 and AD1 address pins. Integrated protection includes VM undervoltage lockout, charge pump undervoltage protection, overcurrent protection, and thermal warning and shutdown.
Key Features
- Three integrated MOSFET half-H-bridges for BLDC drive
- 3 V to 20 V VM motor supply range
- 5 A peak output current drive capability
- 210 mOhm typical combined high-side and low-side RDS(ON)
- 6x PWM, 3x PWM, and PWM generation modes
- PWM operation supported up to 200 kHz
- Integrated current sensing without external sense resistors
- 10 MHz SPI/tSPI communication support
- 1.8 V, 3.3 V, and 5 V logic inputs
- 3.3 V ±4.5% AVDD regulator up to 100 mA
- nFAULT open-drain active-low fault indication
- VM undervoltage, OCP, and thermal protection
Typical Applications
- 3-phase BLDC motor drive
- PWM-controlled BLDC motor systems
- SPI motor-control designs
- tSPI motor-control designs
- Hardware-configured BLDC drivers
- Integrated current-sense motor control
- Low-voltage VM motor supplies
Procurement Notes
When requesting a quote for DRV8311, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What motor type does the DRV8311 support?
The DRV8311 is specified for 3-phase brushless DC motors. Its topology uses three integrated MOSFET half-H-bridges for three-phase BLDC motor drive.
What is the DRV8311 VM operating voltage range?
The VM motor supply operating range is 3 V to 20 V. The VM supply absolute maximum voltage is 24 V, based on the extracted datasheet facts.
Which control interfaces are available for DRV8311 devices?
The DRV8311 supports 6x PWM, 3x PWM, and PWM generation mode. Variant interfaces differ: DRV8311H is hardware configured, DRV8311S uses SPI, and DRV8311P supports SPI/tSPI.
Does the DRV8311 require external current-sense resistors?
The extracted facts state that the DRV8311 includes integrated current sensing with no external resistor required. It provides SOA, SOB, and SOC current sense amplifier outputs for OUTA, OUTB, and OUTC.
What protection functions are integrated in the DRV8311?
Integrated protection includes VM undervoltage lockout, charge pump undervoltage protection, overcurrent protection, and thermal warning and thermal shutdown. Fault conditions can be indicated through the open-drain active-low nFAULT pin.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.