Texas Instruments DRV8718SQRVJRQ1

Overview

DRV8718SQRVJRQ1 from Texas Instruments is an automotive multi-channel smart half-bridge gate driver designed for driving multiple brushed DC motors, actuators, solenoids, and other external MOSFET-based loads. The device integrates eight half-bridge gate drivers, two wide common-mode current shunt amplifiers, SPI configuration, smart gate-drive control, diagnostic monitoring, and protection functions in a 56-pin VQFN package.

As part of the Texas Instruments DRV871x-Q1 automotive gate-driver family, DRV8718SQRVJRQ1 supports a 4.9V to 37V operating supply range, 100% PWM duty-cycle operation through an integrated charge pump, adjustable source and sink gate-drive current, PWM input mapping, and advanced fault reporting. For engineers reviewing the DRV8718SQRVJRQ1 datasheet, DRV8718SQRVJRQ1 pinout, DRV8718SQRVJRQ1 application, or DRV8718SQRVJRQ1 equivalent, this device is widely used in automotive brushed DC motor modules, power seats, lift gates, door modules, body control modules, power sunroofs, and transmission or engine-control systems.

Technical Context

In automotive body and motor-control systems, DRV8718SQRVJRQ1 functions as an 8-channel half-bridge gate driver for external N-channel MOSFETs. It does not integrate the power MOSFETs themselves; instead, it provides the high-side and low-side gate-drive signals, current sensing, protection monitoring, and SPI-based control required to build flexible multi-motor or multi-load driver systems.

The smart gate-drive architecture manages dead time, supports adjustable slew-rate control, and provides adaptive propagation-delay behavior to reduce shoot-through risk, control EMI, and improve switching consistency. Gate-drive source and sink currents can be configured across a wide range, allowing designers to tune MOSFET switching speed according to board layout, MOSFET gate charge, EMI targets, and thermal requirements.

DRV8718SQRVJRQ1 also integrates two wide common-mode current shunt amplifiers that support inline, high-side, or low-side current sensing. This allows continuous motor-current measurement in systems where multiple loads or motor groups are controlled by the same driver IC. SPI configuration provides detailed register control, diagnostic readback, PWM mapping, watchdog support, and fault reporting for automotive control modules.

Key Specifications

Pinout & Package

The DRV8718SQRVJRQ1 pinout is based on the DRV8718S-Q1 56-pin VQFN RVJ package. It includes SPI communication pins, four PWM control inputs, eight half-bridge gate-driver output groups, two current-shunt amplifier channels, charge-pump pins, power-supply pins, driver disable and fault reporting, sleep control, and a thermal pad.

For PCB implementation, the gate-driver outputs should be routed with short, low-inductance paths to the external MOSFET gates. PVDD, VCP, CP1, CP2, DVDD, and AREF bypass capacitors should be placed close to the device. The thermal pad, PGND pins, and ground returns should be designed to support stable switching, current sensing, and automotive transient robustness.

Key Features

• Eight half-bridge smart gate drivers for external N-channel MOSFET power stages.
• AEC-Q100 qualified for automotive grade 1 operating environments.
• 4.9V to 37V operating supply range for automotive battery and actuator systems.
• SPI interface provides configuration control, diagnostic readback, and watchdog support.
• Four PWM inputs with mapping capability reduce controller PWM pin requirements.
• Adjustable source and sink gate-drive current supports EMI and slew-rate tuning.
• Integrated dead-time handshaking helps reduce shoot-through risk.
• Two wide common-mode current shunt amplifiers support inline, high-side, or low-side sensing.
• Integrated VDS overcurrent and VGS gate-fault monitoring for external MOSFET protection.
• Offline open-load and short-circuit diagnostics support automotive fault detection.
• Power-off braking support helps manage motor back-EMF conditions in sleep mode.
• 56-pin VQFN package with wettable flanks supports compact automotive PCB assembly.

Applications

Equivalent & Alternatives

When evaluating DRV8718SQRVJRQ1 equivalent devices, engineers should compare the number of half-bridge channels, SPI versus hardware interface, gate-drive current range, current-sense amplifier architecture, package compatibility, automotive qualification, diagnostic coverage, and MOSFET protection features.

Compared with DRV8714SQRVJRQ1, DRV8718SQRVJRQ1 is optimized for systems requiring eight half-bridge gate-driver channels while maintaining SPI control, current sensing, and advanced diagnostics. DRV8718SQRVJRQ1 vs DRV8908-Q1 selection depends on whether the application requires external MOSFET flexibility, current scalability, gate-drive tuning, package constraints, and power-stage architecture.

Quality

DRV8718SQRVJRQ1 should be sourced as original Texas Instruments components through traceable and controlled supply channels. Quality verification procedures may include package inspection, top-mark validation, wettable-flank inspection, solderability testing, SPI communication checks, gate-drive function testing, current-sense amplifier validation, and incoming inspection according to automotive electronics production requirements.

Because the device is used in automotive motor-control environments, PCB layout, external MOSFET selection, charge-pump capacitor placement, gate-loop inductance, shunt-resistor routing, thermal design, transient protection, and diagnostic validation help maintain reliable long-term operation. Traceable sourcing supports automotive manufacturing quality and reduces counterfeit supply-chain risk.

Availability

DRV8718SQRVJRQ1 available at Aetrix Electronics and suitable for automotive brushed DC motor control, power seats, power trunk and lift-gate systems, door modules, body control modules, power sunroofs, and transmission or engine-control electronics requiring stable component supply and repeatable production support.

Supply support may include scheduled delivery planning, volume procurement support, BOM continuity assistance, traceable sourcing management, and long-term availability support for automotive module manufacturers, motor-control developers, Tier suppliers, and electronics production programs.

For production deployment, confirming package type, channel count, SPI configuration needs, MOSFET gate-drive requirements, current-sense architecture, automotive qualification, and sourcing continuity helps reduce procurement risk and improve manufacturing stability.

Manufacturer

Texas Instruments is a semiconductor manufacturer specializing in analog ICs, embedded processors, power-management devices, motor drivers, automotive interface devices, sensing technologies, and signal-chain products for automotive, industrial, communication, consumer, and embedded-system applications.

The Texas Instruments automotive motor-driver portfolio focuses on smart gate-driver technology, integrated protection, current sensing, diagnostic coverage, configurable control interfaces, and robust power-stage management for body electronics, actuator modules, powertrain electronics, and distributed automotive control systems.

FAQ

What is DRV8718SQRVJRQ1 used for?

DRV8718SQRVJRQ1 is used for automotive multi-channel brushed DC motor control, actuator control, power seats, lift gates, door modules, body control systems, power sunroofs, and other external MOSFET half-bridge applications.

Where can I find the DRV8718SQRVJRQ1 datasheet download?

The DRV8718SQRVJRQ1 datasheet is available from Texas Instruments and includes electrical specifications, pin configuration, register maps, SPI control details, gate-drive behavior, diagnostics, protection features, application circuits, and layout guidance.

What should be considered in DRV8718SQRVJRQ1 PCB design?

PCB implementation should prioritize short gate-drive loops, proper charge-pump capacitor placement, low-inductance power and ground routing, shunt-resistor Kelvin routing, thermal-pad connection, PVDD bulk capacitance, and clean separation between high-current switching paths and sensing signals.

Does DRV8718SQRVJRQ1 include power MOSFETs?

No. DRV8718SQRVJRQ1 is a smart gate driver for external N-channel MOSFETs. The external MOSFETs must be selected according to motor current, voltage, thermal, switching, and automotive qualification requirements.

What are common DRV8718SQRVJRQ1 equivalent solutions?

Common alternatives include DRV8714SQRVJRQ1, DRV8714H-Q1, and DRV8908-Q1 depending on half-bridge channel count, SPI or hardware interface requirements, external MOSFET architecture, integrated driver preference, diagnostics, and automotive system design needs.