Texas Instruments DRV8802QPWPRQ1

Overview

DRV8802QPWPRQ1 from Texas Instruments is a dual H-bridge brushed DC motor driver IC designed for precision current-controlled motion control in automotive-qualified applications. It operates from 8.2 V to 45 V, delivers up to 1.6-A peak output per bridge at 24 V/25°C, supports four-level winding current regulation (100%/71%/38%/0%), and integrates fault reporting via open-drain nFAULT. It is used in automotive HVAC actuators and electronic throttle control modules requiring robust overcurrent, thermal, and UVLO protection.

For engineers reviewing the DRV8802QPWPRQ1 datasheet, DRV8802QPWPRQ1 pinout, DRV8802QPWPRQ1 application, or DRV8802QPWPRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 2 qualification, programmable decay mode (fast/slow), integrated 3.3-V reference (V3P3OUT), dual independent current scaling (AI[1:0]/BI[1:0]), and thermally enhanced HTSSOP-28 PowerPAD™ package with RθJA = 38.9°C/W.

Technical Context

The DRV8802QPWPRQ1 implements two independent NMOS H-bridge drivers with fixed-frequency PWM current regulation (50 kHz), using external sense resistors (ISENA/ISENB) and internal 5× gain amplifiers to compare scaled sense voltage against user-programmable AVREF/BVREF inputs. Current magnitude is set by 2-bit DACs (AI1/AI0 and BI1/BI0), enabling discrete current levels without microcontroller PWM overhead.

Decay mode is globally controlled by the DECAY pin: logic low enables slow decay (brake) via simultaneous low-side FET activation; logic high enables fast decay (coast) via H-bridge reversal. Fault detection includes independent overcurrent protection (OCP trip at 1.8–5 A), thermal shutdown (TSD at 150–180°C), and VM undervoltage lockout (UVLO at 7.8–8.2 V), all signaled through nFAULT.

Key Specifications

Pinout & Package

DRV8802QPWPRQ1 is housed in a thermally enhanced 28-pin HTSSOP package (9.70 mm × 4.40 mm) with exposed PowerPAD™ thermal pad (GND-connected) for efficient heat dissipation. The package is RoHS-compliant and AEC-Q100 qualified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DRV8802QPWPRQ1, DRV8876QPWPRQ1 offers higher drive strength but less granular current control, while TB9051FTG adds safety diagnostics at the cost of interface complexity and thermal performance-making DRV8802QPWPRQ1 optimal for cost-sensitive, AEC-Q100-compliant dual-motor applications requiring simple parallel control and predictable decay behavior.

Availability

DRV8802QPWPRQ1 is available at Aetrix Electronics and suitable for automotive HVAC systems, electronic throttle control modules, and power seat adjusters requiring stable component supply across long production lifecycles and rigorous environmental qualification.

Supply support for DRV8802QPWPRQ1 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 automotive electronics.

DRV8802QPWPRQ1 belongs to TI's automotive-qualified motor driver portfolio, engineered specifically for AEC-Q100 Grade 2 applications in body electronics-emphasizing reliability, thermal robustness, and hardware-based fault containment in harsh environments.

FAQ

What is the AEC-Q100 qualification level of DRV8802QPWPRQ1?

DRV8802QPWPRQ1 is qualified to AEC-Q100 Grade 2, meaning it is rated for operation from −40°C to +105°C ambient temperature and has passed stress tests including HTOL, TC, UHAST, and ESD per automotive standards. This makes DRV8802QPWPRQ1 suitable for under-dash and engine-compartment-adjacent applications where thermal and reliability margins are critical.

How does the current regulation work in DRV8802QPWPRQ1?

DRV8802QPWPRQ1 uses internal 5× gain amplifiers to monitor voltage across external sense resistors (ISENA/ISENB), comparing it to AVREF/BVREF inputs. When the amplified sense voltage exceeds the reference, the PWM cycle terminates. Current level is selected via AI[1:0]/BI[1:0] pins, setting 100%/71%/38%/0% of full-scale-enabling precise torque control without software-based current loops in DRV8802QPWPRQ1.

Can DRV8802QPWPRQ1 drive stepper motors?

DRV8802QPWPRQ1 is not optimized for stepper motor control. It lacks microstepping, coil phasing logic, or indexer functionality. While it can drive unipolar or bipolar stepper windings as two independent DC loads, DRV8802QPWPRQ1 does not provide synchronized phase sequencing or current balancing between coils-making dedicated stepper drivers like DRV8825 or DRV8711 more appropriate for true stepper applications.

What is the purpose of the nSLEEP pin on DRV8802QPWPRQ1?

The nSLEEP pin on DRV8802QPWPRQ1 enables ultra-low-power standby mode: when pulled low, it disables H-bridges, stops the charge pump (VCP), shuts down the V3P3OUT regulator, and halts internal clocks, reducing VM supply current to ≤20 µA. DRV8802QPWPRQ1 requires ~1 ms to fully reinitialize after nSLEEP returns high, making it ideal for intermittent-actuation systems like door lock modules.

Does DRV8802QPWPRQ1 require external flyback diodes?

No, DRV8802QPWPRQ1 does not require external flyback diodes. Its NMOS H-bridge architecture uses intrinsic body diodes of the power FETs for recirculation during decay modes. The device's slow decay (brake) mode actively turns on both low-side FETs, while fast decay (coast) relies on body diode conduction-eliminating discrete diode placement and associated layout area in DRV8802QPWPRQ1 designs.