Texas Instruments DRV8880RHRR

Overview

DRV8880RHRR from Texas Instruments is a bipolar stepper motor driver IC with integrated H-bridge power stages, microstepping indexer, and Smart Tune current regulation. It delivers 2.0 A full-scale / 1.4 A RMS output current, operates from 6.5 V to 45 V, supports STEP/DIR control up to 1 MHz, and enables 1/16 microstepping for precision motion in compact industrial actuators.

For engineers reviewing the DRV8880RHRR datasheet, DRV8880RHRR pinout, DRV8880RHRR application, or DRV8880RHRR equivalent, this page provides verified electrical specs, thermal performance data, decay mode configuration options, Smart Tune behavior, and real-world stepper motor interface guidance - all specific to the RHR (28-pin WQFN) package variant.

Technical Context

The DRV8880RHRR implements dual N-channel H-bridge drivers with adaptive blanking time and configurable PWM off-time (10/20/30 µs). Its indexer executes full-step through 1/16 microstep modes using M0/M1 tri-level inputs and supports non-circular 1/2-step for higher torque at speed.

Smart Tune dynamically selects decay mode (slow/mixed/fast) per step transition to minimize current ripple while maintaining responsiveness. Current regulation relies on VREF input, AISEN/BISEN sense resistors, and TRQ0/TRQ1 torque DAC scaling (100%/75%/50%/25%), enabling digital current adjustment without analog voltage reprogramming.

Key Specifications

Pinout & Package

DRV8880RHRR uses a 28-pin WQFN package (5.50 mm × 3.50 mm) with exposed thermal pad (connected to GND). Pin numbering follows TI's RHR top-view layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar stepper motor driver applications.

Compared with DRV8881RHRR, the DRV8880RHRR retains external sense resistors for greater flexibility in current calibration and fault threshold tuning; versus STSPIN820TR, it offers proven STEP/DIR simplicity and Smart Tune's motor-agnostic decay optimization - making it preferable for industrial motion systems where reliability and ease of integration outweigh ultra-fine resolution needs.

Availability

DRV8880RHRR is available at Aetrix Electronics and suitable for automatic teller machines, video security cameras, and 3D printers requiring stable component supply, long-term industrial lifecycle support, and consistent thermal performance across ambient temperatures from –40°C to +125°C.

Supply support for DRV8880RHRR 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 leader specializing in analog, embedded processing, and high-reliability power management solutions for industrial, automotive, and communications markets.

The DRV8880RHRR belongs to TI's high-voltage stepper motor driver product line, engineered for robust motion control in factory automation, office equipment, and surveillance systems where wide input voltage range, integrated protection, and microstepping precision are essential.

FAQ

What is the maximum microstepping resolution supported by the DRV8880RHRR?

The DRV8880RHRR supports up to 1/16 microstepping via its internal indexer. This resolution is selected using the M0 and M1 tri-level pins. The device also offers non-circular 1/2-step mode for improved torque at higher speeds. Full-step through 1/16-step configurations are detailed in Table 2 of the DRV8880RHRR datasheet, and no external clock or waveform generator is required to achieve these modes.

How does Smart Tune function in the DRV8880RHRR, and what benefit does it provide?

Smart Tune in the DRV8880RHRR automatically selects the optimal decay mode (slow, mixed, or fast) for each individual step transition based on real-time current error and motor dynamics. It minimizes current ripple while preserving responsiveness to step commands - eliminating manual decay tuning across different motor types, supply voltages, and temperatures. This feature significantly simplifies system integration and improves motion smoothness without firmware overhead.

What are the thermal limitations of the DRV8880RHRR in its WQFN (RHR) package?

The DRV8880RHRR in the 28-pin WQFN package has a junction-to-board thermal resistance (RθJB) of 8.0 °C/W. At 24 V and TA = 25°C with adequate PCB copper area, it sustains 1.4 A RMS current. Derating is required above 25°C ambient: for example, at TA = 85°C, maximum sustainable RMS current drops to approximately 1.0 A. Thermal shutdown activates at TJ = 150°C with 35°C hysteresis, ensuring safe recovery after overload conditions.

Can the DRV8880RHRR operate from a 12-V supply, and what performance changes occur?

Yes, the DRV8880RHRR operates from 6.5 V to 45 V, including standard 12-V industrial rails. At 12 V, RDS(ON) increases (e.g., high-side FET rises from 330 mΩ at 24 V/25°C to 430 mΩ), reducing efficiency and increasing conduction loss. Full-scale current remains 2.0 A, but RMS current capability decreases due to higher thermal rise - design must ensure sufficient PCB copper area and airflow to maintain TJ < 150°C under continuous load.

What protection features are integrated into the DRV8880RHRR, and how are faults reported?

The DRV8880RHRR integrates VM undervoltage lockout (UVLO2), logic undervoltage (UVLO1), charge pump undervoltage (CPUV), overcurrent protection (OCP) with latched/retry modes, and thermal shutdown (TSD) with 35°C hysteresis. All faults are reported via the open-drain nFAULT pin, which pulls low during any active fault condition. An external pullup resistor (to V3P3 or VM) is required to generate a valid logic-high signal during normal operation.