Texas Instruments DRV8803PWP

Overview

DRV8803PWP from Texas Instruments is a 4-channel protected low-side NMOS driver IC with integrated clamp diodes, 500 mΩ typical R_DS(on), 8.2–60 V operating supply range, and 2 A single-channel / 1 A four-channel continuous output current (at 25°C with proper PCB heatsinking). It serves as a parallel-controlled load switch for unipolar stepper motors, solenoids, and relays in industrial motion control systems.

For engineers reviewing the DRV8803PWP datasheet, DRV8803PWP pinout, DRV8803PWP application, or DRV8803PWP equivalent, key selection considerations include thermal performance in HTSSOP-16 package, overcurrent protection trip level (2.3–3.8 A), fault reporting via open-drain nFAULT, and compatibility with PWM-based hold-current regulation for inductive loads.

Technical Context

The DRV8803PWP implements four independent low-side N-channel MOSFET drivers with per-channel analog overcurrent protection, thermal shutdown (150–180°C trip), and undervoltage lockout (8.2 V). Each channel features an integrated clamp diode connected to the VCLAMP pin, enabling fast inductive energy recirculation.

Control uses a simple parallel interface with Schmitt-trigger inputs (IN1–IN4, nENBL, RESET), all featuring internal pulldowns. The device draws only 1.6–2.1 mA quiescent current at 24 V and supports propagation delays under 800 ns (INx to OUTx) and enable timing under 50 ns.

Key Specifications

Pinout & Package

DRV8803PWP is housed in a thermally enhanced 16-pin HTSSOP package (5.00 mm × 4.40 mm body size) with exposed thermal pad (PPAD) for direct PCB heatsinking. The package requires soldering the thermal pad to a large copper area with multiple vias to ground plane for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DRV8802PWP, the DRV8803PWP provides double the channel count in identical footprint and thermal performance; versus TB9051FTG, it offers lower conduction loss and simpler parallel control but lacks automotive qualification and serial diagnostics.

Availability

DRV8803PWP is available at Aetrix Electronics and suitable for industrial motion control, automated valve actuation, and relay-based power distribution systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for DRV8803PWP 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 industrial interface solutions.

The DRV8803PWP belongs to TI's high-voltage motor driver product line, designed specifically for robust, thermally efficient low-side switching of inductive loads in factory automation, building systems, and instrumentation.

FAQ

What is the maximum continuous output current per channel for DRV8803PWP?

The DRV8803PWP supports up to 2 A continuous current per channel when only one channel is active, and 1 A per channel when all four channels operate simultaneously - both values measured at 25°C ambient with proper PCB heatsinking (exposed thermal pad connected to ground plane via ≥6 vias). Derating is required above 25°C based on R_θJA = 39.6 °C/W.

Does DRV8803PWP require external flyback diodes when driving inductive loads?

No, the DRV8803PWP integrates clamp diodes for each output channel. These diodes connect to the VCLAMP pin, which must be tied to VM or a zener/TVS diode referenced to VM. This eliminates the need for external flyback diodes and reduces board space and component count in solenoid, relay, and stepper motor designs.

How does the overcurrent protection (OCP) function in DRV8803PWP?

The DRV8803PWP implements per-channel analog current limiting with a trip threshold of 2.3–3.8 A. If overcurrent persists beyond a 3.5 µs deglitch window, the affected channel disables and nFAULT pulls low. After a 1.2 ms retry interval, the channel automatically recovers - or recovery occurs immediately upon RESET assertion or VM cycling.

What is the role of the VCLAMP pin on DRV8803PWP?

The VCLAMP pin serves as the common cathode node for all four integrated clamp diodes. It must be connected to VM (for standard flyback) or to a zener/TVS diode referenced to VM (to allow output voltage overshoot beyond VM). This configuration enables fast current decay in unipolar stepper motors and protects against inductive voltage spikes.

Can DRV8803PWP be used with PWM for solenoid hold-current control?

Yes, the DRV8803PWP supports PWM frequencies up to 100 kHz and is commonly used to implement peak-and-hold current profiles for solenoids. Its low 50–300 ns rise/fall times and precise OCP ensure stable regulation of hold current (e.g., 100 mA) after initial peak (e.g., 200 mA), extending solenoid life and reducing power consumption in DRV8803PWP-based valve drivers.