Texas Instruments DRV8832DGQ

Overview

DRV8832DGQ from Texas Instruments is a low-voltage, single H-bridge brushed DC motor driver IC designed for battery-powered motion control. It delivers up to 1 A continuous/DC-RMS or 1.3 A peak output current, operates from 2.75 V to 6.8 V, integrates PWM voltage regulation with programmable VSET input, and features built-in current limiting, thermal shutdown, undervoltage lockout, and fault reporting via open-drain FAULTn pin - used in compact printers, robotic actuators, and camera focus mechanisms.

For engineers reviewing the DRV8832DGQ datasheet, DRV8832DGQ pinout, DRV8832DGQ application, or DRV8832DGQ equivalent, key selection considerations include its 10-pin MSOP PowerPAD™ package, 450 mΩ typical HS+LS R_DS(ON), 300-nA sleep current, integrated 1.285-V reference output (VREF), and voltage-regulated motor control architecture enabling constant speed across discharging battery rails.

Technical Context

The DRV8832DGQ implements a closed-loop PWM voltage regulation system: it senses the average motor voltage (OUT1–OUT2), divides it by 4 internally, compares it to the externally applied VSET voltage, and adjusts PWM duty cycle to maintain regulated output. This enables stable motor speed despite supply voltage drift from 2.75 V to 6.8 V.

Its protection architecture includes independent analog overcurrent detection per FET (OCP trip at 1.3–3 A), thermal shutdown at 150–180 °C, and UVLO activation below ~2.5 V. Current limiting is set via external sense resistor (RISENSE) referenced to 200-mV threshold, with 275-ms deglitch time before FAULTn assertion.

Key Specifications

Pinout & Package

The DRV8832DGQ is housed in a thermally enhanced 10-pin MSOP PowerPAD™ package (3.00 mm × 3.00 mm) with exposed thermal pad (GND-connected) on underside for efficient heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TB6612FNG and DRV8876N, the DRV8832DGQ uniquely combines ultra-low sleep current (300 nA), integrated voltage regulation (VSET/VREF), and compact 3-mm × 3-mm footprint - making it optimal for space-constrained, battery-sensitive single-motor applications where analog simplicity and long runtime are prioritized over multi-channel or digital configurability.

Availability

DRV8832DGQ is available at Aetrix Electronics and suitable for battery-powered printers, robotic actuators, camera focus modules, and portable medical devices requiring stable component supply across extended production lifecycles.

Supply support for DRV8832DGQ 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 delivering analog and embedded processing solutions, with core expertise in power management, signal chain, and motor control ICs.

The DRV8832DGQ belongs to TI's low-voltage brushed DC motor driver family, engineered specifically for compact, battery-operated motion systems demanding high integration, efficiency, and reliability in minimal board area.

FAQ

What is the maximum continuous output current supported by the DRV8832DGQ?

The DRV8832DGQ supports up to 1 A of continuous DC/RMS output current when mounted on a PCB with adequate copper heatsinking (e.g., 2 oz. copper, 1-in² thermal pad). This rating assumes ambient temperature ≤85°C and junction temperature ≤125°C. Peak current capability reaches 1.3 A for short durations, such as motor startup, before overcurrent protection engages. The actual deliverable current depends on layout, airflow, and thermal design - refer to R_θJB = 51.6 °C/W in the DGQ package datasheet for thermal modeling. DRV8832DGQ must not exceed its absolute maximum junction temperature of 150°C.

How does the DRV8832DGQ achieve constant motor speed across varying battery voltage?

The DRV8832DGQ uses an internal PWM voltage regulation loop that compares a divided version of the motor output voltage (OUT1–OUT2)/4 to the externally applied VSET voltage. When VCC drops due to battery discharge, the device automatically increases PWM duty cycle to maintain the programmed motor voltage - for example, setting VSET = 1.2 V yields ~4.8 V across the motor regardless of whether VCC is 5.5 V or 3.0 V. This closed-loop method avoids linear regulation losses and preserves battery life. DRV8832DGQ integrates the reference (VREF = 1.285 V) and comparator, eliminating external components required by discrete solutions.

What is the function of the ISENSE pin on the DRV8832DGQ, and how is current limit configured?

The ISENSE pin on the DRV8832DGQ connects to one end of an external current-sense resistor (RISENSE) tied to GND. The device monitors voltage across this resistor and triggers current limiting when it exceeds 200 mV (typical). To set a desired current limit ILIMIT, use RISENSE = 0.2 V / ILIMIT - e.g., 0.4 Ω for 500 mA. The current limit fault has a 275-ms deglitch timer before asserting FAULTn, allowing brief surges during startup. If current limiting is unnecessary, ISENSE may be tied directly to GND. DRV8832DGQ does not require calibration or trimming for this function.

Can the DRV8832DGQ operate in sleep mode, and what is its quiescent current?

Yes, the DRV8832DGQ enters ultra-low-power sleep mode when both IN1 and IN2 are held logic low. In this state, all H-bridge FETs are disabled (Hi-Z), internal regulators are gated, and supply current drops to 300 nA typical (1 μA max) at 25°C. Sleep mode clears any pending current-limit faults and resets internal logic. To wake the device, drive either IN1 or IN2 high - the FAULTn pin pulses low briefly during wake-up. DRV8832DGQ maintains full functionality after sleep entry/exit without requiring reinitialization or power cycling.

What protection features are integrated into the DRV8832DGQ?

The DRV8832DGQ integrates four key protections: (1) Undervoltage lockout (UVLO) disables operation below ~2.5 V to prevent erratic behavior; (2) Overcurrent protection (OCP) shuts down the H-bridge if instantaneous current exceeds ~1.3 A, independent of the programmable current limit; (3) Thermal shutdown (TSD) activates at 150–180 °C die temperature; and (4) Fault reporting via open-drain FAULTn pin, which pulls low during any active protection event. All protections are self-resetting except OCP, which requires VCC power cycle. DRV8832DGQ implements these without external components, simplifying system-level safety design.