Texas Instruments DRV8813PWPR

Overview

DRV8813PWPR from Texas Instruments is a dual H-bridge motor controller IC designed to drive bipolar stepper motors or two independent brushed DC motors in automated equipment. It operates from 8.2 V to 45 V, delivers up to 2.5 A peak output current per bridge at 24 V/25°C, supports four-level winding current control (100%/71%/38%/0%), and implements programmable decay modes (fast, slow, mixed) for precise torque and motion control - used in printers, scanners, and video security cameras.

For engineers reviewing the DRV8813PWPR datasheet, DRV8813PWPR pinout, DRV8813PWPR application, or DRV8813PWPR equivalent, this page provides verified technical context, validated pin functions, confirmed current regulation behavior, thermal shutdown and fault reporting implementation, and real-world selection guidance against comparable motor drivers.

Technical Context

The DRV8813PWPR integrates two independent NMOS H-bridge driver stages with integrated current-sense amplifiers (5 V/V gain), fixed-frequency PWM current regulation (50 kHz typical), and blanking time of 3.75 µs to suppress switching noise. Each bridge features separate phase/enabled logic (APHASE/AENBL, BPHASE/BENBL) and configurable current reference inputs (AVREF/BVREF) with 2-bit DAC scaling (0–100%).

Decay mode is globally controlled via the DECAY pin (low = slow, open = mixed, high = fast), and protection includes overcurrent detection (3 A trip level), thermal shutdown (150–180°C), and VM undervoltage lockout (7.8–8.2 V). The device uses an internal charge pump (CP1/CP2) to drive high-side NMOS FETs and provides a regulated 3.3 V output (V3P3OUT) with ±1 mA load capability.

Key Specifications

Pinout & Package

DRV8813PWPR is housed in a 28-pin HTSSOP package (9.70 mm × 4.40 mm) with PowerPAD™ thermal pad for enhanced heat dissipation. The exposed pad must be soldered to a large PCB copper area connected to GND for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual H-bridge motor control applications.

Compared with TB6600HG and DRV8825, the DRV8813PWPR offers balanced integration - combining dual-bridge drive, on-chip 3.3 V regulation, programmable decay, and fault reporting in a single HTSSOP package - making it optimal for cost-sensitive, thermally constrained industrial motion systems requiring moderate current and robust diagnostics.

Availability

DRV8813PWPR is available at Aetrix Electronics and suitable for printers, video security cameras, and factory automation systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for DRV8813PWPR 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 power management technologies, with decades of expertise in motor control IC design and industrial-grade reliability.

The DRV8813PWPR belongs to TI's high-voltage motor driver product line, engineered specifically for cost-effective, thermally efficient control of stepper and DC motors in automated office, security, and industrial equipment.

FAQ

What is the maximum continuous output current per bridge for DRV8813PWPR?

The DRV8813PWPR supports up to 2.5 A peak output current per H-bridge at 24 V and 25°C ambient with adequate heatsinking. Continuous RMS current is rated at 1.75 A under the same conditions. Actual sustained current depends on PCB thermal design - the HTSSOP PowerPAD must be connected to ≥4 cm² of 2-oz copper with ≥6 thermal vias to maintain junction temperature below 150°C.

Does DRV8813PWPR support microstepping, and how is it implemented?

The DRV8813PWPR supports basic microstepping through its four-level winding current control (100%/71%/38%/0%), configured via AI0/AI1 and BI0/BI1 pins. While not a dedicated microstepping driver like the DRV8825, it enables coarse microstepping by dynamically adjusting current levels between full/half/quarter steps - commonly used in printers and scanners where fine resolution is secondary to robustness and cost.

How does the DECAY pin affect motor performance in DRV8813PWPR?

The DECAY pin on DRV8813PWPR selects global decay behavior: low = slow decay (low power, higher torque ripple), high = fast decay (lower ripple, higher power loss), open = mixed decay (75% fast + 25% slow - optimal balance for most stepper applications). Mixed decay minimizes audible noise and improves step accuracy in printers and PTZ cameras without excessive heat generation.

Can DRV8813PWPR operate without external current sense resistors?

No - DRV8813PWPR requires external sense resistors connected to ISENA and ISENB pins to implement current regulation. The internal 5 V/V amplifier measures voltage across these resistors to generate the ITRIP threshold. For full-scale 2.5 A current with 2.5 V VREF, a 0.25 Ω resistor is required; omitting it disables PWM current control and risks overcurrent damage.

What protection features are built into DRV8813PWPR?

DRV8813PWPR includes overcurrent protection (3 A trip level, independent of sense resistor), thermal shutdown (150–180°C die temperature), and VM undervoltage lockout (7.8–8.2 V). All faults assert the open-drain nFAULT pin low, allowing host MCU to detect and respond. These protections operate autonomously without software intervention, ensuring fail-safe motor control in industrial environments.