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Texas Instruments DRV8871DDA
- Part No.:
- DRV8871DDA
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
DRV8871DDA.pdf
- Description:
- IC MOTOR DRVR UNIPLR 8SO PWRPAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,977
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Product details
Overview
DRV8871DDA from Texas Instruments is a monolithic H-bridge brushed DC motor driver IC designed for bidirectional control of one DC motor or one winding of a stepper motor. It operates from 6.5 V to 45 V, delivers up to 3.6-A peak output current, features integrated current regulation without external sense resistors, and includes VM undervoltage lockout, overcurrent protection, and thermal shutdown. It is used in printer paper feed mechanisms, appliance pump actuators, and industrial valve positioners.
For engineers reviewing the DRV8871DDA datasheet, DRV8871DDA pinout, DRV8871DDA application, or DRV8871DDA equivalent, key selection criteria include its 8-pin HSOP package with PowerPAD™, internal current-sense architecture using ILIM resistor programming, PWM-compatible dual logic inputs (IN1/IN2), and fault-recovery behavior under OCP/TSD/UVLO conditions.
Technical Context
The DRV8871DDA integrates four N-channel MOSFETs in an H-bridge configuration with typical combined RDS(on) of 565 mΩ (HS + LS), enabling efficient 3.6-A peak drive at up to 45 V. Its charge pump fully enhances high-side FETs, eliminating need for external bootstrap circuitry.
Current regulation is implemented via an internal analog circuit that converts voltage on ILIM pin (set by external resistor) into a precise current trip threshold (ITRIP), with blanking time (tBLANK = 2 µs) and off-time (tOFF = 25 µs) fixed internally. Fault recovery is automatic: after UVLO, OCP, or TSD events, normal operation resumes once the condition clears.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 6.5 V to 45 V - supports wide-input industrial and appliance power rails without external regulators |
| Peak Output Current | 3.6 A - enables direct driving of medium-torque DC motors (e.g., 24-V, 10-W class) without external current amplification |
| RDS(on) (HS + LS) | 565 mΩ typical - limits conduction loss to ≤5.1 W at 3.6-A peak, reducing heatsink requirements |
| PWM Frequency Support | 0–200 kHz - allows fine-speed resolution and noise avoidance in audible range (e.g., 25 kHz switching) |
| Thermal Resistance (RθJA) | 41.1 °C/W - achievable with 4.9 × 6 mm HSOP PowerPAD™ soldered to ≥2-layer ground plane and ≥6 thermal vias |
| Protection Features | UVLO (6.1–6.5 V), OCP (3.7–6.4 A), TSD (150–175 °C) - all auto-recover without host intervention |
| Sleep Current | 10 µA at 12 V - enables ultra-low-power standby in battery-backed systems (e.g., smart home actuators) |
Pinout & Package
Package: 8-pin HSOP (4.9 mm × 6.0 mm) with exposed thermal pad (PowerPAD™), requiring solder connection to PCB ground plane and ≥6 thermal vias for thermal compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Logic ground reference | Connects to system digital ground; must be low-impedance path to avoid logic noise coupling into control signals |
| IN2 (Pin 2) | H-bridge control input | Accepts 0–5.5 V logic; internal 100-kΩ pulldown enables coast mode when floating or low |
| IN1 (Pin 3) | H-bridge control input | Paired with IN2 to define forward/reverse/brake/coast states per truth table; compatible with MCU GPIO |
| ILIM (Pin 4) | Current limit programming node | Voltage sets ITRIP via RILIM; e.g., 30 kΩ yields ~2.1 A trip - eliminates need for precision shunt resistor |
| VM (Pin 5) | Main power supply input | 6.5–45 V motor supply and IC bias source; requires local 0.1-µF ceramic + bulk capacitor (≥47 µF) |
| OUT1 (Pin 6) | H-bridge output terminal | Connects directly to one motor terminal; handles bidirectional current up to 3.6 A peak |
| PGND (Pin 7) | High-current power ground | Separate return path for motor current; must be routed low-inductance to OUT1/OUT2 and tied to GND at single point |
| OUT2 (Pin 8) | H-bridge output terminal | Connects directly to second motor terminal; complements OUT1 to complete full H-bridge path |
| Thermal Pad | Die thermal interface | Exposed copper pad beneath package; must be soldered to PCB ground plane for RθJA = 41.1 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current regulation | Eliminates external current-sense resistor and op-amp, reducing BOM count and board area while maintaining ±10% ITRIP accuracy across temperature |
| Auto-recovering fault protection | Resumes operation within 3 ms after OCP or UVLO clearance - avoids system-level watchdog resets in embedded controllers |
| Charge-pump high-side drive | Enables 100% duty-cycle operation with N-channel-only FETs, removing need for external bootstrap diode/capacitor |
| Low-power sleep mode | Enters <10 µA quiescent state when both IN1 and IN2 held low >1 ms - critical for always-on IoT actuators |
| Programmable decay modes | Brake (slow decay) and coast (fast decay) selected via IN1/IN2 combinations - optimizes torque ripple and EMI in motion profiles |
Applications
| Printer Paper Feed System | Appliance Water Pump Control |
|---|---|
|
Use Scenario: Bidirectional transport of paper through rollers with stall detection during jam conditions. IC Role / Device Role / Timing Role: H-bridge driver controlling DC motor direction/speed via PWM; current regulation prevents overcurrent during paper jams. Use Value: Integrated OCP and auto-recovery allow continued operation after transient jams without firmware intervention. |
Use Scenario: Variable-speed water circulation in dishwashers or washing machines, requiring quiet operation and dry-run protection. IC Role / Device Role / Timing Role: Motor driver with programmable ITRIP to limit startup surge and maintain consistent flow rate across voltage variations. Use Value: 6.5–45 V input range accommodates universal AC-DC adapter outputs (e.g., 24 V nominal, ±20% tolerance). |
| Industrial Linear Actuator | Automated HVAC Damper |
|
Use Scenario: Precise positioning of valves or slides using DC motor with feedback-less open-loop control. IC Role / Device Role / Timing Role: Current-regulated H-bridge delivering repeatable torque independent of battery voltage sag. Use Value: Internal current sense eliminates calibration drift from external shunt resistor temperature coefficients. |
Use Scenario: Low-duty-cycle airflow control in commercial HVAC systems powered from 24-VAC rectified supplies. IC Role / Device Role / Timing Role: Motor driver operating in intermittent sleep mode between position adjustments to minimize standby power. Use Value: 10 µA sleep current extends battery life in wireless damper controllers beyond 5 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar brushed DC motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6612FNG | Lower voltage (2.7–13.5 V), lower peak current (1.2 A), no integrated current regulation - requires external sense resistor and comparator | Better suited for low-voltage robotics (e.g., 3.3/5 V microcontrollers) but unsuitable for 24/48 V industrial loads | Select TB6612FNG only if supply voltage ≤13.5 V and design can accommodate external current sensing. |
| DRV8876PWPR | Same 6.5–45 V range and 3.6-A peak, but uses smaller 16-pin HTSSOP package with enhanced thermal performance (RθJA = 30.5 °C/W) | Preferred for high-ambient-temperature environments (>85 °C) or higher continuous RMS current (>1.5 A) | Choose DRV8876PWPR when PCB layout allows larger footprint and thermal management demands exceed DRV8871DDA's 41.1 °C/W capability. |
Compared with TB6612FNG, DRV8871DDA supports 3.5× higher supply voltage and eliminates external current-sense components; compared with DRV8876PWPR, it offers identical electrical specs in a smaller 8-pin HSOP footprint but with 26% higher thermal resistance - making it optimal for space-constrained 24-V applications with moderate duty cycles.
Availability
DRV8871DDA is available at Aetrix Electronics and suitable for printer mechanisms, appliance pumps, industrial linear actuators, and HVAC damper controls requiring stable component supply across multi-year production cycles.
Supply support for DRV8871DDA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in motor control, power management, and signal chain solutions.
The DRV8871DDA belongs to TI's brushed DC motor driver product line, engineered for cost-sensitive, space-constrained industrial and consumer motion control applications where integration, protection, and ease of use are prioritized over ultra-high efficiency or multi-axis coordination.
FAQ
What is the maximum continuous RMS current supported by the DRV8871DDA?
The DRV8871DDA supports up to 2-A RMS continuous current at 25°C on standard FR-4 PCBs with proper thermal layout (PowerPAD™ soldered, ≥6 vias, multi-layer ground). This value decreases with rising ambient temperature or reduced copper area - for example, derating to ~1.3 A at 85°C ambient. The 3.6-A rating is peak (non-repetitive), limited by OCP threshold and thermal shutdown behavior.
How does the ILIM pin set current regulation on the DRV8871DDA?
The ILIM pin on the DRV8871DDA accepts a voltage derived from an external resistor (RILIM) connected between ILIM and GND. Using VILIM = 64 kV (typical) and ITRIP = VILIM / RILIM, a 30-kΩ resistor sets ITRIP ≈ 2.13 A. The device then enforces this limit by forcing slow-decay brake mode for 25 µs whenever current exceeds the threshold, independent of external sensing components.
Does the DRV8871DDA require external bootstrap components for high-side drive?
No, the DRV8871DDA does not require external bootstrap diodes or capacitors. It integrates a charge pump that generates gate-drive voltage above VM, enabling full enhancement of its N-channel high-side MOSFETs across the entire 6.5–45 V supply range. This simplifies layout and improves reliability versus discrete bootstrap solutions.
What happens when both IN1 and IN2 are held low on the DRV8871DDA?
When both IN1 and IN2 are held low for ≥1 ms, the DRV8871DDA enters low-power sleep mode, disabling all FETs and reducing VM supply current to ≤10 µA. Outputs go to high-impedance (coast), and internal logic clocks halt. The device wakes within 50 µs after either input rises above VIH (1.5 V), resuming full operation without reset or configuration reload.
Can the DRV8871DDA drive a stepper motor?
Yes, the DRV8871DDA can drive one winding of a bipolar stepper motor (e.g., in half-step or microstepping drivers with external current control), but it is not a dedicated stepper driver. It provides full H-bridge control for unidirectional or bidirectional current in a single coil, requiring external sequencing logic for full 2-phase operation. Its 3.6-A peak rating suits NEMA-17 class steppers at reduced torque.
DRV8871DDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Motor Type - Stepper:
- Unipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Full Bridge
- Interface:
- PWM
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- DC Motors, General Purpose, Stepper Motors
- Current - Output:
- 3.6A
- Voltage - Supply:
- 6.5V ~ 45V
- Voltage - Load:
- 6.5V ~ 45V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
DRV8871DDA FAQ
1.How can I place an order for DRV8871DDA through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8871DDA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8871DDA reliable?
The price and inventory of DRV8871DDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8871DDA is usually 5 days.
3.What payment methods are accepted for DRV8871DDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8871DDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8871DDA?
DRV8871DDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8871DDA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8871DDA?
For technical support, including DRV8871DDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8871DDA requirements.
6.How does Aetrix verify that DRV8871DDA is sourced from the original manufacturer or authorized distributors?
All DRV8871DDA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8871DDA meets industry standards.
7.What is the process for return or replacement of DRV8871DDA?
All DRV8871DDA units undergo pre-shipment inspection (PSI). If there is an issue with DRV8871DDA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8871DDA part is unused and in its original packaging.
Return procedure for DRV8871DDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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