Specifications
| Type | Description |
|---|---|
| Part Number | DRV8871 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | 8-pin HSOP DDA with PowerPAD, 4.90 mm x 6.00 mm body |
| Motor Driver Topology | H-bridge with four N-channel MOSFETs; condition: Brushed DC motor bidirectional control |
| Motor Channels | 1 DC motor or 1 winding of a stepper motor; condition: Supported load types |
| Operating Supply Voltage | 6.5-45 V; condition: Recommended operating conditions, VM |
| Absolute Maximum Supply Voltage | -0.3 to 50 V; condition: VM, absolute maximum rating |
| Peak Output Current | 0-3.6 A; condition: Recommended operating conditions; thermal limits must be observed |
| Output Current | 0-3.5 A; condition: 100% duty cycle, absolute maximum rating |
| Typical Total RDS(on) | 565 mOhm; condition: High-side plus low-side FET typical resistance |
| High-Side FET On Resistance | 307 mOhm typ, 360 mOhm max; condition: VM=24 V, I=1 A, fPWM=25 kHz, TA=25°C |
| Low-Side FET On Resistance | 258 mOhm typ, 320 mOhm max; condition: VM=24 V, I=1 A, fPWM=25 kHz, TA=25°C |
| Logic Input Voltage | 0-5.5 V; condition: IN1, IN2 recommended operating conditions |
| Absolute Maximum Logic Input Voltage | -0.3 to 7 V; condition: IN1, IN2 absolute maximum rating |
| Logic Input PWM Frequency | 0-200 kHz; condition: IN1, IN2; minimum 800 ns pulse width for detection |
| Usable Duty Cycle Range | 16%-84%; condition: fPWM=200 kHz |
| Input Logic Low Voltage | 0.5 V max; condition: IN1, IN2, TA=25°C |
| Input Logic High Voltage | 1.5 V min; condition: IN1, IN2, TA=25°C |
| Input Logic Hysteresis | 0.5 V typ; condition: IN1, IN2, TA=25°C |
| Input Logic Low Current | -1 to 1 uA; condition: VIN=0 V, TA=25°C |
| Input Logic High Current | 33 uA typ, 100 uA max; condition: VIN=3.3 V, TA=25°C |
| Input Pulldown Resistance | 100 kOhm typ; condition: To GND, IN1/IN2 |
| Propagation Delay | 0.7 us typ, 1 us max; condition: INx to OUTx change |
| Time To Sleep | 1 ms typ, 1.5 ms max; condition: Inputs low to sleep |
| Sleep Mode Entry | Both IN1 and IN2 low; condition: Outputs High-Z; sleep entered after approximately 1 ms |
| VM Operating Supply Current | 3 mA typ, 10 mA max; condition: VM=12 V, TA=25°C |
| VM Sleep Current | 10 uA typ; condition: VM=12 V, TA=25°C |
| Turn-On Time | 40 us typ, 50 us max; condition: VM > VUVLO with IN1 or IN2 high; applies at power-up or exiting sleep mode |
| Output Dead Time | 220 ns typ; condition: Motor driver outputs |
| Body Diode Forward Voltage | 0.8 V typ, 1 V max; condition: IOUT=1 A |
| Current Regulation Constant | 59 kV min, 64 kV typ, 69 kV max; condition: VILIM for calculating current regulation, IOUT=1 A |
| PWM Off-Time | 25 us typ; condition: Current regulation |
| PWM Blanking Time | 2 us typ; condition: Current regulation |
| VM Undervoltage Lockout Falling Threshold | 6.1 V min, 6.4 V typ; condition: VM falls until UVLO triggers |
| VM Undervoltage Lockout Rising Threshold | 6.3 V min, 6.5 V typ; condition: VM rises until operation recovers |
| VM Undervoltage Hysteresis | 100 mV min, 180 mV typ; condition: Rising-to-falling threshold |
| Overcurrent Protection Trip Level | 3.7 A min, 4.5 A typ, 6.4 A max; condition: Protection circuits |
| Overcurrent Deglitch Time | 1.5 us typ; condition: Protection circuits |
| Overcurrent Retry Time | 3 ms typ; condition: Automatic fault recovery |
| Thermal Shutdown Temperature | 150°C min, 175°C typ; condition: Protection circuits |
| Thermal Shutdown Hysteresis | 40°C typ; condition: Protection circuits |
| Operating Ambient Temperature | -40 to 125°C; condition: Recommended operating conditions; thermal limits must be observed |
| Operating Junction Temperature | -40 to 150°C; condition: Absolute maximum rating |
| Storage Temperature | -65 to 150°C; condition: Absolute maximum rating |
| Continuous Phase Node Pin Voltage | -0.7 V to VM+0.7 V; condition: OUT1, OUT2 absolute maximum rating |
| HBM ESD Rating | +/-6000 V; condition: Human-body model per ANSI/ESDA/JEDEC JS-001 |
| CDM ESD Rating | +/-750 V; condition: Charged-device model per JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance | 41.1°C/W; condition: DDA HSOP 8-pin package |
| Junction-to-Case Top Thermal Resistance | 53.1°C/W; condition: DDA HSOP 8-pin package |
| Junction-to-Board Thermal Resistance | 23.1°C/W; condition: DDA HSOP 8-pin package |
| Junction-to-Top Characterization Parameter | 8.2°C/W; condition: DDA HSOP 8-pin package |
| Junction-to-Board Characterization Parameter | 23°C/W; condition: DDA HSOP 8-pin package |
| Junction-to-Case Bottom Thermal Resistance | 2.7°C/W; condition: DDA HSOP 8-pin package |
| H-Bridge Control Coast Mode | IN1=0, IN2=0, OUT1=High-Z, OUT2=High-Z; condition: H-bridge disabled; sleep entered after 1 ms |
| H-Bridge Control Reverse Mode | IN1=0, IN2=1, OUT1=L, OUT2=H; condition: Current OUT2 to OUT1 |
| H-Bridge Control Forward Mode | IN1=1, IN2=0, OUT1=H, OUT2=L; condition: Current OUT1 to OUT2 |
| H-Bridge Control Brake Mode | IN1=1, IN2=1, OUT1=L, OUT2=L; condition: Low-side slow decay |
| VM Pin Requirement | 0.1 uF bypass capacitor plus sufficient bulk capacitance; condition: Capacitance rated for VM voltage |
| Current Limit Setting | External resistor from ILIM to ground; condition: Sets current chopping threshold |
| Datasheet Status | request_only |
Product Overview
The DRV8871 is a Texas Instruments brushed DC motor driver classified under Power_Management. Its motor-driver topology is an H-bridge built with four N-channel MOSFETs, supporting bidirectional control of 1 DC motor or 1 winding of a stepper motor. Control is provided through IN1 and IN2 logic inputs with forward, reverse, brake, and coast operating states defined by the input combinations.
The device operates from a recommended VM supply range of 6.5-45 V and supports 0-3.6 A peak output current when thermal limits are observed. The total typical high-side plus low-side RDS(on) is 565 mOhm, with specified high-side and low-side on-resistance values at VM=24 V, I=1 A, fPWM=25 kHz, and TA=25°C. Logic inputs support 0-5.5 V operation and 0-200 kHz PWM, with a 16%-84% usable duty-cycle range at 200 kHz.
The package is an 8-pin HSOP DDA with PowerPAD and a 4.90 mm x 6.00 mm body. The VM pin requires a 0.1 uF bypass capacitor plus sufficient bulk capacitance rated for the VM voltage, and current chopping threshold is set using an external resistor from ILIM to ground.
Key Features
- H-bridge with four N-channel MOSFETs
- Drives 1 DC motor or 1 stepper winding
- 6.5-45 V recommended VM operating range
- 0-3.6 A peak output current range
- 565 mOhm typical total RDS(on)
- 0-200 kHz IN1 and IN2 PWM input
- Forward, reverse, coast, and brake control modes
- Sleep mode when IN1 and IN2 are low
- External ILIM resistor sets current chopping threshold
- UVLO, overcurrent, and thermal shutdown protection
Typical Applications
- Bidirectional brushed DC motor control
- Single DC motor drives
- One stepper motor winding drive
- PWM-controlled motor speed control
- Current-regulated motor outputs
- Low-side slow-decay braking circuits
Procurement Notes
When requesting a quote for DRV8871, 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 loads does the DRV8871 support?
The DRV8871 supports 1 DC motor or 1 winding of a stepper motor. Its H-bridge uses four N-channel MOSFETs and provides bidirectional brushed DC motor control through IN1 and IN2 logic inputs.
What VM supply range is recommended for DRV8871 operation?
The recommended operating supply voltage for VM is 6.5-45 V. The absolute maximum VM rating is -0.3 to 50 V, so operation should remain within the recommended range for normal use.
How is sleep mode entered on the DRV8871?
Sleep mode is entered when both IN1 and IN2 are low. In this state OUT1 and OUT2 are High-Z, and sleep is entered after approximately 1 ms, with a typical VM sleep current of 10 uA at VM=12 V.
How is the DRV8871 current limit set?
The current chopping threshold is set with an external resistor from ILIM to ground. The current regulation constant is specified as 59 kV minimum, 64 kV typical, and 69 kV maximum for VILIM calculation at IOUT=1 A.
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.