Texas Instruments DRV8804PWPR

Overview

DRV8804PWPR from Texas Instruments is a quad-channel protected low-side driver IC integrating four N-channel MOSFETs, serial interface control, integrated clamp diodes, overcurrent protection, and thermal shutdown. It delivers up to 2 A per channel (single-channel on) or 1 A per channel (all four on) at 25°C with proper PCB heatsinking in the HTSSOP-16 package, and operates from 8.2 V to 60 V - ideal for unipolar stepper motor phase control in industrial automation systems.

For engineers reviewing the DRV8804PWPR datasheet, DRV8804PWPR pinout, DRV8804PWPR application, or DRV8804PWPR equivalent, key selection considerations include its daisy-chainable serial interface, fault reporting via open-drain nFAULT, R_DS(on) of 400 mΩ (typ), and thermal performance in the PWP package under sustained multi-channel load conditions.

Technical Context

The DRV8804PWPR implements a shift-register-based serial interface with SCLK, SDATIN, SDATOUT, and LATCH signals enabling daisy-chained configuration of multiple devices using one controller port. Its output stage uses four independent N-channel MOSFETs with integrated clamp diodes tied to VCLAMP, supporting fast inductive decay in solenoid and stepper applications.

Protection logic includes analog overcurrent detection (trip level 2.3–3.8 A, deglitch time 3.5 µs), thermal shutdown at ~150 °C, and undervoltage lockout at 8.2 V. Fault status is reported asynchronously on the open-drain nFAULT pin, while outputs remain controllable via nENBL (active-low enable) and RESET (active-high initialization).

Key Specifications

Pinout & Package

DRV8804PWPR is housed in a thermally enhanced 16-pin HTSSOP (PWP) package measuring 5.00 mm × 4.40 mm, featuring an exposed thermal pad (PPAD) connected to GND for efficient heat dissipation into the PCB ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-side driver applications.

Compared with TB9051FTG and TPIC2603DWR, DRV8804PWPR uniquely combines quad-channel integration, daisy-chain serial control, programmable clamp voltage via VCLAMP, and 2 A per channel capability - making it optimal for space-constrained industrial motion control where thermal efficiency and fault visibility are critical.

Availability

DRV8804PWPR is available at Aetrix Electronics and suitable for industrial automation, medical fluid control, and precision motion systems requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.

Supply support for DRV8804PWPR 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 U.S.-based semiconductor company specializing in analog and embedded processing technologies, with leadership in motor control, power management, and industrial interface solutions.

The DRV8804PWPR belongs to TI's high-voltage motor driver product line, designed specifically for robust, thermally efficient low-side switching in multi-load industrial and medical equipment where serial configurability and integrated protection reduce system-level design risk.

FAQ

What is the maximum continuous current per channel for DRV8804PWPR at 70°C ambient?

At 70°C ambient with standard FR-4 PCB heatsinking, DRV8804PWPR supports approximately 1.4 A per channel (single-channel on) and 700 mA per channel (all four on), based on its R_θJA = 39.6 °C/W and thermal shutdown threshold of ~150 °C. Derating curves in the datasheet confirm this linear reduction from the 25°C ratings of 2 A and 1 A respectively. Always verify with actual board thermal simulation or measurement for your layout.

Can DRV8804PWPR drive bipolar stepper motors?

No, DRV8804PWPR is a low-side-only driver and cannot directly drive bipolar stepper motors, which require H-bridge topology for bidirectional current control in each winding. It is explicitly designed for unipolar stepper motors, relays, solenoids, and other single-direction inductive loads. For bipolar steppers, TI recommends DRV8825 or DRV8880 as functionally appropriate alternatives.

How does the VCLAMP pin affect flyback voltage suppression in DRV8804PWPR?

The VCLAMP pin connects the anodes of all four integrated clamp diodes. When tied directly to VM, flyback energy recirculates through the supply. When connected to a zener diode referenced to VM, it clamps turn-off transients to VM + V_Z, enabling faster current decay - critical for unipolar stepper microstepping. The datasheet specifies VCLAMP must never exceed 65 V, and the zener must be rated for peak clamp diode current (2 A).

Is DRV8804PWPR pin-compatible with other packages in the DRV8804 family?

No, DRV8804PWPR (HTSSOP-16) is not pin-compatible with DRV8804DW (SOIC-20) or DRV8804DYZ (SOT-23-THN-16). Pin counts, layouts, and thermal pad configurations differ significantly - e.g., DW has 6 GND pins and no PPAD, while PWP uses a single large PPAD. PCB redesign is required when substituting between packages; only functional equivalence applies.

What happens to DRV8804PWPR outputs during an overcurrent fault?

During an overcurrent event exceeding 2.3–3.8 A for longer than 3.5 µs, DRV8804PWPR disables all affected output FETs, pulls nFAULT low, and enters a 1.2 ms auto-retry cycle. Outputs remain off during retry; if the fault persists, the cycle repeats. The fault clears immediately upon RESET assertion or VM power cycle - no manual intervention is needed for recovery in most industrial implementations.