Texas Instruments DRV8932PPWPR

Overview

DRV8932PPWPR from Texas Instruments is a quad half-bridge motor driver IC designed for industrial load control. It integrates four independent N-channel half-bridges, supports 4.5–33 V supply, delivers up to 1.5-A peak current per channel at 24 V/25°C, features integrated current sensing with VREF-based regulation, and drives solenoids, DC motors, or stepper motors in compact HTSSOP-28 packaging.

For engineers reviewing the DRV8932PPWPR datasheet, DRV8932PPWPR pinout, DRV8932PPWPR application, or DRV8932PPWPR equivalent, key selection criteria include its 900 mΩ total R_DS(ON), configurable 7/16/24/32 μs PWM off-time, 1.8–5.0 V logic compatibility, spread-spectrum clocking for EMI reduction, and comprehensive protection suite (UVLO, OCP, OTSD, CPUV) with open-drain nFAULT reporting.

Technical Context

The DRV8932PPWPR implements four independent half-bridge output stages using N-channel MOSFETs, each with dedicated high-side and low-side drivers powered by an internal charge pump. Current regulation is achieved via external VREF12/VREF34 voltage inputs controlling I_TRIP = V_REF/2.2 V/A, enabling precise per-pair current limiting.

It operates in two primary functional modes: active mode (nSLEEP = high) with full PWM control and protection monitoring, and ultra-low-power sleep mode (nSLEEP = low, 2 µA quiescent current) disabling all outputs and the charge pump. Fault conditions-including VM undervoltage, VCP undervoltage, overcurrent, and thermal shutdown-are reported via the open-drain nFAULT pin with latched or automatic recovery behavior per fault type.

Key Specifications

Pinout & Package

DRV8932PPWPR uses the HTSSOP-28 (PWP) package with 9.7 mm × 4.4 mm body size and exposed thermal pad for enhanced power dissipation. Pin numbering follows TI's standard top-view layout with PowerPAD™ thermal connection to PGND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad half-bridge driver applications.

Compared with DRV8932PPWPR, DRV8935PWPR offers significantly lower R_DS(ON) and higher current rating in identical packaging-ideal for thermally demanding applications-while DRV8955PWPR extends operational voltage to 48 V for next-generation industrial platforms, both retaining pin compatibility but requiring revalidation of current-sense resistor values and thermal management.

Availability

DRV8932PPWPR is available at Aetrix Electronics and suitable for refrigerator damper control, office automation actuators, and factory robotics grippers requiring stable component supply, long-term manufacturability, and automotive-grade reliability testing.

Supply support for DRV8932PPWPR 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 experience in industrial motor control solutions.

The DRV8932PPWPR belongs to TI's high-integration motor driver portfolio, engineered specifically for compact, cost-sensitive industrial actuators requiring robust protection, flexible current regulation, and minimal external components.

FAQ

What is the maximum continuous output current per channel for the DRV8932PPWPR?

The DRV8932PPWPR supports up to 1.05-A RMS continuous output current per channel under typical PCB thermal conditions at 25°C ambient. Peak current capability is rated at 1.5 A, but sustained operation above RMS limits requires careful thermal design using the exposed PowerPAD™ and recommended copper pour per TI's layout guidelines. Derating applies above 25°C ambient per the R_θJA = 33.0°C/W specification.

How does the DRV8932PPWPR implement current regulation without external sense resistors?

The DRV8932PPWPR uses internal current-sense FETs and transimpedance amplifiers referenced to VREF12 and VREF34 pins. The regulated trip current is calculated as I_TRIP = V_REF / 2.2 V/A, allowing precise setting via external resistor dividers. This eliminates discrete sense resistors and associated signal conditioning, reducing board space and component count while maintaining ±5% accuracy over temperature.

Can the DRV8932PPWPR drive a bipolar stepper motor?

Yes, the DRV8932PPWPR can drive a bipolar stepper motor by configuring two half-bridges (e.g., OUT1/OUT2 for phase A, OUT3/OUT4 for phase B) in H-bridge mode using complementary INx signals. Its 1.5-A peak current and 900-mΩ R_DS(ON) support NEMA 11–17 size steppers at up to 24 V; microstepping requires external controller timing, as the device provides only current-regulated full/half-step drive.

What is the purpose of the TOFF pin on the DRV8932PPWPR, and how is it configured?

TOFF on the DRV8932PPWPR selects one of four fixed PWM off-times (7, 16, 24, or 32 μs) to control current decay rate in inductive loads. Configuration is achieved by applying specific voltages: GND (7 μs), 330kΩ-to-GND (32 μs), Hi-Z (24 μs), or DVDD (16 μs). This hardware-selectable feature simplifies current-loop tuning without firmware intervention or external timers.

Does the DRV8932PPWPR require external capacitors, and which ones are mandatory?

Yes, the DRV8932PPWPR requires five mandatory external capacitors: two 0.01-μF X7R ceramics from VM to PGND (pins 2 & 13), one 0.22-μF X7R from VCP to VM, one 0.022-μF X7R from CPH to CPL, and one 0.47–1-μF X7R from DVDD to GND. These ensure stable charge pump operation, low-noise logic regulation, and robust VM bypassing-omitting any compromises protection integrity or current regulation accuracy.