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Texas Instruments DRV8702DQRHBTQ1
- Part No.:
- DRV8702DQRHBTQ1
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
DRV8702DQRHBTQ1.pdf
- Description:
- IC MOTOR DRIVER 5.5V-45V 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
DRV8702DQRHBTQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive half-bridge gate driver that drives two external N-channel MOSFETs for unidirectional brushed-DC motor, fuel pump, or solenoid control. It operates from 5.5 V to 45 V, supports 100% PWM duty cycle, integrates PWM current regulation with fixed off-time chopping, and features Smart Gate Drive architecture with adjustable slew-rate control and active pulldowns.
For engineers reviewing the DRV8702DQRHBTQ1 datasheet, DRV8702DQRHBTQ1 pinout, DRV8702DQRHBTQ1 application, or DRV8702DQRHBTQ1 equivalent, key selection criteria include its 32-pin VQFN (5.0 × 5.0 mm) package, dual-gate drive capability with programmable IDRIVE current, integrated shunt amplifier (gain = 19.8 V/V), VDS-based overcurrent protection threshold tuning, and automotive-grade thermal shutdown at 150°C.
Technical Context
The DRV8702DQRHBTQ1 implements a fixed off-time PWM current regulation loop using internal shunt-amplifier feedback and VREF-set reference voltage, enabling precise winding current control without external controllers. Its Smart Gate Drive architecture dynamically optimizes dead time (typ. 240 ns), provides programmable slew-rate control via IDRIVE pin configuration, and includes active and passive pulldowns to prevent dv/dt-induced turn-on.
Unlike the SPI-configurable DRV8703D-Q1, the DRV8702DQRHBTQ1 uses only PWM and analog control inputs (IN1/IN2, MODE, VREF, VDS), eliminating serial interface overhead while retaining full gate-drive functionality, current sensing, and comprehensive protection including UVLO, CPUV, OCP, GDF, and thermal shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.5 V to 45 V - supports wide automotive battery range including cold-crank (5.5 V) and load-dump (45 V) conditions. |
| Gate Drive Current (HS Sink) | Up to 440 mA - configurable via IDRIVE pin resistor to match external FET gate charge and switching loss requirements. |
| Shunt Amplifier Gain | 19.8 V/V - enables accurate current sensing with standard 10–225 mV sense resistor drops and low offset (10 µV/°C drift). |
| PWM Current Regulation | Fixed off-time chopping - sets motor current limit via VREF voltage (0.3–3.6 V), independent of supply or temperature variation. |
| Overcurrent Protection | VDS-based trip level (0.06–0.96 V) - selectable via external resistor on VDS pin to match FET RDS(on) and desired fault threshold. |
| Thermal Shutdown | 150°C with 20°C hysteresis - ensures safe operation under sustained overload or poor heatsinking in engine bay environments. |
| Package | VQFN-32 (5.0 × 5.0 mm, wettable flanks) - supports automated optical inspection and high-power density PCB layout with exposed thermal pad. |
Pinout & Package
VQFN-32 package with 5.0 mm × 5.0 mm body size and wettable flanks for enhanced solder joint reliability in automotive applications. Exposed thermal pad improves power dissipation (RθJB = 6.8°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GH / GL | High-side / Low-side gate outputs | Drive external N-MOSFET gates with up to 440 mA sink current; include internal clamping (±0.7 V) and strong pulldown (750 mA GH, 1000 mA GL). |
| SH / SP / SN | High-side source / Shunt+ / Shunt− | Connect to external current-sense resistor; SH ties to high-side FET source, SP/SN form differential input to integrated 19.8× amplifier. |
| VREF | Current regulation reference input | Analog voltage (0.3–3.6 V) sets PWM chopping current threshold; determines ICHOP = VREF × 10 A/V with typical 25 µΩ sense resistor. |
| VDS | VDS monitor threshold setting | Resistor-connected pin configures overcurrent trip level (0.06–0.96 V) to match external FET RDS(on) and system safety margin. |
| nFAULT | Open-drain fault indicator | Asserts low on UVLO, OCP, TSD, or GDF faults; requires external pullup; latched until nSLEEP toggle or power cycle. |
| nSLEEP | Logic-controlled sleep enable | Pull low to enter ultra-low-power mode (14 µA VM current); wakes in 1 ms; places GH/GL in high-impedance state. |
| IN1 / IN2 | PWM control inputs | Direct logic-level interface (1.8/3.3/5 V compatible); internal pulldowns ensure defined state during MCU reset or floating condition. |
| MODE | Half-bridge operation mode select | No-connect enables internal current regulation; tie high disables regulation for external controller use - latched at power-up or wake. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Gate Drive Architecture | Eliminates need for external gate resistors/Zeners by integrating programmable slew-rate control, dynamic dead-time optimization (240 ns typ), and gate-clamp protection (±0.7 V). |
| Integrated PWM Current Regulation | Fixed off-time chopping loop uses internal shunt amplifier and VREF to maintain precise motor current without external microcontroller intervention. |
| Configurable Overcurrent Protection | VDS-based OCP threshold set via single external resistor on VDS pin - supports wide range of external FET RDS(on) values (e.g., 0.06 V for 2 mΩ, 0.96 V for 32 mΩ). |
| Automotive-Grade Protection Suite | Includes UVLO (5.45 V trip), charge-pump UV (VVM+1.5 V), thermal shutdown (150°C), gate-driver fault detection, and watchdog-free fault reporting via nFAULT. |
| Low-Power Sleep Mode | Reduces VM supply current to 14 µA at 25°C - enables always-on systems (e.g., fuel pumps) with minimal quiescent drain on vehicle battery. |
Applications
| Fuel Pump Control | Brushed DC Motor Drive |
|---|---|
Use Scenario: Regulated 12-V fuel pump operation in gasoline direct injection (GDI) systems requiring variable flow rate and stall protection. IC Role / Device Role / Timing Role: Half-bridge gate driver controlling high-side and low-side N-MOSFETs; implements fixed off-time PWM current regulation to limit inrush and stall current. Use Value: Prevents pump burnout during clogged filter or dry-start conditions via VDS-based OCP and thermal shutdown, while maintaining EMC compliance via slew-rate control. | Use Scenario: Bidirectional speed control of HVAC blower motors in passenger compartment, operating across 8–16 V battery range. IC Role / Device Role / Timing Role: PWM-driven half-bridge driver with integrated current sensing; uses VREF-set chopping to maintain constant torque across voltage transients. Use Value: Eliminates need for external current-sense amplifier and controller, reducing BOM count and PCB area while meeting AEC-Q100 Grade 1 ambient (–40°C to +125°C). |
| Solenoid Actuation | Unipolar Load Switching |
Use Scenario: Precise timing and current-limited activation of transmission shift solenoids in automatic gearboxes. IC Role / Device Role / Timing Role: High-current half-bridge driver with fast gate drive (2.5 µs tDRIVE) and programmable IDRIVE to match solenoid inductance and resistance. Use Value: Ensures consistent mechanical response by regulating peak current (via VREF) and preventing coil overheating via thermal shutdown and OCP. | Use Scenario: Power switching for automotive lighting modules (e.g., headlamp leveling actuators) requiring high-side or low-side control with diagnostics. IC Role / Device Role / Timing Role: Configurable half-bridge supporting unipolar loads; MODE pin disables internal regulation for external PWM control when needed. Use Value: Provides built-in fault reporting (nFAULT), sleep mode for low quiescent current, and robust protection against load dump and reverse battery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8703DQRHBTQ1 | Includes SPI interface, watchdog timer, and programmable gain shunt amplifier (4 gain options vs. fixed 19.8×); identical pinout and package. | Required where firmware-based configuration, diagnostics logging, or multi-gain current sensing is needed - e.g., adaptive motor control in ADAS actuators. | Select DRV8703DQRHBTQ1 when serial configurability and enhanced diagnostics justify added software complexity and cost. |
| TPS65381AQDKRQ1 | Integrated buck regulator + dual half-bridge + current sense; wider VIN (4.5–40 V); no VDS OCP; lower gate drive current (200 mA max sink). | Targets space-constrained systems needing power management integration - e.g., small solenoid drivers in body control modules. | Choose TPS65381AQDKRQ1 only if combined power + gate drive integration reduces total solution size more than discrete design flexibility. |
Compared with DRV8703DQRHBTQ1, DRV8702DQRHBTQ1 offers simpler PWM-only control and lower system-level software overhead, while TPS65381AQDKRQ1 trades gate-drive performance and VDS-based OCP for integrated power conversion - making DRV8702DQRHBTQ1 optimal for cost-sensitive, high-reliability brushed-DC actuation where analog control suffices.
Availability
DRV8702DQRHBTQ1 is available at Aetrix Electronics and suitable for fuel pump control, brushed DC motor drive, solenoid actuation, and unipolar load switching requiring stable component supply in automotive production programs.
Supply support for DRV8702DQRHBTQ1 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 automotive ICs, with decades of experience in high-reliability power management solutions.
The DRV870x-Q1 product line was designed specifically for automotive brushed-DC motor and solenoid actuation, emphasizing AEC-Q100 compliance, integrated protection, and simplified current regulation to reduce system complexity in engine, chassis, and body electronics.
FAQ
What is the maximum gate drive current supported by the DRV8702DQRHBTQ1?
The DRV8702DQRHBTQ1 supports up to 440 mA peak sink current on the high-side gate (GH) and 430 mA on the low-side gate (GL) when configured with 1 kΩ to AVDD on the IDRIVE pin at VVM = 13.5 V. Source currents reach up to 260 mA (GH) and 225 mA (GL) under same conditions. These values scale with supply voltage and IDRIVE resistor selection per datasheet Table 6.5.
How does the DRV8702DQRHBTQ1 implement current regulation without a microcontroller?
The DRV8702DQRHBTQ1 uses an internal fixed off-time PWM current regulation loop: the shunt amplifier measures motor current via SP/SN, compares it to VREF-set threshold, and automatically chops the gate drive to maintain average current. This analog closed-loop operates autonomously - no firmware or external controller required - and is enabled by leaving the MODE pin unconnected.
Can the DRV8702DQRHBTQ1 drive both high-side and low-side N-channel MOSFETs in a half-bridge configuration?
Yes, the DRV8702DQRHBTQ1 is explicitly designed to drive two external N-channel MOSFETs in a half-bridge topology. It provides dedicated GH and GL outputs with integrated charge pump (VCP) enabling 100% duty cycle operation, and includes SH pin for high-side source sensing - all confirmed in the device description, pin functions, and functional block diagram of the DRV8702D-Q1 datasheet.
What protection features are integrated into the DRV8702DQRHBTQ1?
The DRV8702DQRHBTQ1 integrates supply undervoltage lockout (UVLO), charge-pump undervoltage (CPUV), overcurrent protection (OCP) via VDS monitoring or shunt amplifier, gate-driver fault (GDF), thermal shutdown (TSD) at 150°C, and fault reporting via open-drain nFAULT pin. All protections are hardware-based and operate independently of external control logic.
Is the DRV8702DQRHBTQ1 pin-compatible with the DRV8703DQRHBTQ1?
Yes, the DRV8702DQRHBTQ1 and DRV8703DQRHBTQ1 share identical VQFN-32 (RHB) packaging, pin assignment, and mechanical footprint - confirmed in the "Device Information" table and Pin Configuration section of the SLVSDX8B datasheet. However, SPI-related pins (SDI, SDO, SCLK, nSCS, nWDFLT) are no-connect on DRV8702DQRHBTQ1 and must remain unconnected in layout.
DRV8702DQRHBTQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Brushed DC
- Current - Output:
- -
- Voltage - Supply:
- 5.5V ~ 45V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 32-VQFN (5x5)
DRV8702DQRHBTQ1 FAQ
1.How can I place an order for DRV8702DQRHBTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8702DQRHBTQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8702DQRHBTQ1 reliable?
The price and inventory of DRV8702DQRHBTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8702DQRHBTQ1 is usually 5 days.
3.What payment methods are accepted for DRV8702DQRHBTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8702DQRHBTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8702DQRHBTQ1?
DRV8702DQRHBTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8702DQRHBTQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8702DQRHBTQ1?
For technical support, including DRV8702DQRHBTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8702DQRHBTQ1 requirements.
6.How does Aetrix verify that DRV8702DQRHBTQ1 is sourced from the original manufacturer or authorized distributors?
All DRV8702DQRHBTQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8702DQRHBTQ1 meets industry standards.
7.What is the process for return or replacement of DRV8702DQRHBTQ1?
All DRV8702DQRHBTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DRV8702DQRHBTQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8702DQRHBTQ1 part is unused and in its original packaging.
Return procedure for DRV8702DQRHBTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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