DRV8231A Series
35-V, 3.7-A H-bridge motor driver with integrated current regulation & current-sense feedback
Manufacturer: Texas Instruments
Catalog
35-V, 3.7-A H-bridge motor driver with integrated current regulation & current-sense feedback
| Part | Interface | Function | Package / Case | Voltage - Supply [Max] | Voltage - Supply [Min] | Technology | Supplier Device Package | Motor Type - AC, DC | Operating Temperature [Min] | Operating Temperature [Max] | Mounting Type | Voltage - Load [Max] | Voltage - Load [Min] | Motor Type - Stepper | Current - Output | Applications | Output Configuration | Package / Case [y] | Package / Case [x] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | PWM | Driver - Fully Integrated Control and Power Stage | 8-WFDFN Exposed Pad | 33 V | 4.5 V | NMOS | 8-WSON (2x2) | Brushed DC | -40 °C | 125 °C | Surface Mount | 33 V | 4.5 V | Bipolar | 3.7 A | Printer | Half Bridge (2) | ||
 Texas Instruments | PWM | Driver - Fully Integrated Control and Power Stage | 8-PowerSOIC | 33 V | 4.5 V | NMOS | 8-SO PowerPad | Brushed DC | -40 °C | 150 °C | Surface Mount | 33 V | 4.5 V | Bipolar | 3.7 A | Printer | Half Bridge (2) | 3.9 mm | 0.154 in |
Texas Instruments | PWM | Driver - Fully Integrated Control and Power Stage | 8-WFDFN Exposed Pad | 33 V | 4.5 V | NMOS | 8-WSON (2x2) | Brushed DC | -40 °C | 125 °C | Surface Mount | 33 V | 4.5 V | Bipolar | 3.7 A | Printer | Half Bridge (2) | ||
Texas Instruments | PWM | Driver - Fully Integrated Control and Power Stage | 8-PowerSOIC | 33 V | 4.5 V | NMOS | 8-SO PowerPad | Brushed DC | -40 °C | 150 °C | Surface Mount | 33 V | 4.5 V | Bipolar | 3.7 A | Printer | Half Bridge (2) | 3.9 mm | 0.154 in |
Key Features
• N-channel H-bridge brushed DC motor driver4.5-V to 33-V operating supply voltage rangePin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror)DRV8870: 6.5-V to 45-V, 565-mΩ, shuntDRV8251: 4.5-V to 48-V, 450-mΩ, shuntDRV8251A: 4.5-V to 48-V, 450-mΩ, mirrorDRV8231: 4.5-V to 33-V, 600-mΩ, shuntDRV8231A: 4.5-V to 33-V, 600-mΩ, mirrorHigh output current capability: 3.7-A PeakPWM control interfaceSupports 1.8-V, 3.3-V, and 5-V logic inputsIntegrated IPROPI current sensing for stall detection and current regulationLow-power sleep mode<1-µA at VVM= 24-V, TJ= 25°CSmall package and footprint8-Pin WSON with PowerPAD™, 2.0 × 2.0 mm8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mmIntegrated protection featuresVM undervoltage lockout (UVLO)Auto-retry overcurrent protection (OCP)Thermal shutdown (TSD)N-channel H-bridge brushed DC motor driver4.5-V to 33-V operating supply voltage rangePin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror)DRV8870: 6.5-V to 45-V, 565-mΩ, shuntDRV8251: 4.5-V to 48-V, 450-mΩ, shuntDRV8251A: 4.5-V to 48-V, 450-mΩ, mirrorDRV8231: 4.5-V to 33-V, 600-mΩ, shuntDRV8231A: 4.5-V to 33-V, 600-mΩ, mirrorHigh output current capability: 3.7-A PeakPWM control interfaceSupports 1.8-V, 3.3-V, and 5-V logic inputsIntegrated IPROPI current sensing for stall detection and current regulationLow-power sleep mode<1-µA at VVM= 24-V, TJ= 25°CSmall package and footprint8-Pin WSON with PowerPAD™, 2.0 × 2.0 mm8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mmIntegrated protection featuresVM undervoltage lockout (UVLO)Auto-retry overcurrent protection (OCP)Thermal shutdown (TSD)
Description
AI
The DRV8231A device is an integrated motor driver with N-channel H-bridge, charge pump, current sense feedback, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.
An internal current mirror architecture on the IPROPI pin implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current-sense output allows a microcontroller to detect motor stall or changes in load conditions. The external voltage reference pin, VREF, determines the threshold of current regulation during start-up and stall events without interaction from a microcontroller.
A low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, output overcurrent, and device overtemperature.
The DRV8231A is part of a family of devices which come in pin-to-pin, scalable RDS(on)and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio ofbrushed motor driverson ti.com.
The DRV8231A device is an integrated motor driver with N-channel H-bridge, charge pump, current sense feedback, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.
An internal current mirror architecture on the IPROPI pin implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current-sense output allows a microcontroller to detect motor stall or changes in load conditions. The external voltage reference pin, VREF, determines the threshold of current regulation during start-up and stall events without interaction from a microcontroller.
A low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, output overcurrent, and device overtemperature.
The DRV8231A is part of a family of devices which come in pin-to-pin, scalable RDS(on)and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio ofbrushed motor driverson ti.com.