DRV8871-Q1 Series
Automotive 50-V, 3.6-A H-bridge motor driver with integrated current sensing
Manufacturer: Texas Instruments
Catalog
Automotive 50-V, 3.6-A H-bridge motor driver with integrated current sensing
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Motor Type - Stepper | Voltage - Load [Min] | Voltage - Load [Max] | Technology | Mounting Type | Applications | Interface | Output Configuration | Supplier Device Package | Voltage - Supply [Min] | Voltage - Supply [Max] | Package / Case [y] | Package / Case [x] | Package / Case | Function | Motor Type - AC, DC | Qualification | Grade | Primary Attributes | Utilized IC / Part | Type | Supplied Contents | Secondary Attributes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | -40 °C | 125 °C | Unipolar | 6.5 V | 45 V | NMOS | Surface Mount | DC Motors General Purpose Stepper Motors | PWM | Full Bridge | 8-SO PowerPad | 6.5 VDC | 45 V | 3.9 mm | 0.154 in | 8-PowerSOIC | Driver - Fully Integrated Control and Power Stage | Brushed DC | |||||||
Texas Instruments | -40 °C | 125 ¯C | Unipolar | 6.8 V | 45 V | NMOS | Surface Mount | PWM | Full Bridge | 8-SO PowerPad | 6.8 V | 45 V | 3.9 mm | 0.154 in | 8-PowerSOIC | Driver - Fully Integrated Control and Power Stage | Brushed DC | AEC-Q100 | Automotive | ||||||
 Texas Instruments | Motor Controller/Driver | Single-H-Bridge Driver | DRV8871 | Power Management | Board(s) | Potentiometer Speed Control | |||||||||||||||||||
 Texas Instruments | -40 °C | 150 °C | Unipolar | 6.5 V | 45 V | NMOS | Surface Mount | DC Motors General Purpose Stepper Motors | PWM | Full Bridge | 8-SO PowerPad | 6.5 VDC | 45 V | 3.9 mm | 0.154 in | 8-PowerSOIC | Driver - Fully Integrated Control and Power Stage | Brushed DC |
Key Features
• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BH-Bridge Motor DriverDrives One DC Motor, One Winding of a Stepper Motor, or Other LoadsWide 6.8-V to 45-V Operating Voltage565-mΩ Typical RDS(on)(HS + LS)3.6-A Peak Current DrivePWM Control InterfaceCurrent Regulation Without a Sense ResistorLow-Power Sleep ModeSmall Package and Footprint8-Pin HSOP With PowerPAD™4.9 × 6 mmIntegrated Protection FeaturesVM Undervoltage Lockout (UVLO)Overcurrent Protection (OCP)Thermal Shutdown (TSD)Automatic Fault RecoveryQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BH-Bridge Motor DriverDrives One DC Motor, One Winding of a Stepper Motor, or Other LoadsWide 6.8-V to 45-V Operating Voltage565-mΩ Typical RDS(on)(HS + LS)3.6-A Peak Current DrivePWM Control InterfaceCurrent Regulation Without a Sense ResistorLow-Power Sleep ModeSmall Package and Footprint8-Pin HSOP With PowerPAD™4.9 × 6 mmIntegrated Protection FeaturesVM Undervoltage Lockout (UVLO)Overcurrent Protection (OCP)Thermal Shutdown (TSD)Automatic Fault Recovery
Description
AI
The DRV8871-Q1 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.
The DRV8871-Q1 device has advanced current-regulation circuitry that does not use an analog voltage reference or external sense resistor. This novel solution uses a standard low-cost, low-power resistor to set the current threshold. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.
The device is fully protected from faults and short circuits, including undervoltage (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.
The DRV8871-Q1 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.
The DRV8871-Q1 device has advanced current-regulation circuitry that does not use an analog voltage reference or external sense resistor. This novel solution uses a standard low-cost, low-power resistor to set the current threshold. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.
The device is fully protected from faults and short circuits, including undervoltage (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.