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Texas Instruments DRV8340SPHPRQ1
- Part No.:
- DRV8340SPHPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 48-PowerTQFP
- Datasheet:
-
DRV8340SPHPRQ1.pdf
- Description:
- PWR MGMT MOTOR/FAN DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:975
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Product details
Overview
DRV8340SPHPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive three-phase smart gate driver IC for driving high-side and low-side N-channel MOSFETs in BLDC and BDC motor modules. It operates from 5.5 V to 60 V, delivers up to 1-A peak source / 2-A peak sink gate drive current per channel, integrates a 3.3-V/30-mA LDO, and supports independent half-bridge control with dedicated SHx/DLx pins - enabling precise solenoid and pump actuation in 12-V/24-V vehicle systems.
For engineers reviewing the DRV8340SPHPRQ1 datasheet, DRV8340SPHPRQ1 pinout, DRV8340SPHPRQ1 application, or DRV8340SPHPRQ1 equivalent, this page delivers verified technical context on its SPI interface variant, HTQFP-48 package with exposed thermal pad, six integrated protection mechanisms (UVLO, OCP, SHT_BAT, SHT_GND, OTW/OTSD, GDF), and configurable slew rate and dead time for automotive-grade motor control design.
Technical Context
The DRV8340SPHPRQ1 implements a smart gate drive architecture with independently configurable high-side and low-side drivers per phase, using an internal charge pump to sustain 100% duty-cycle operation and a linear regulator to supply 3.3 V at up to 30 mA. Its SPI interface enables full register-level access to fault diagnostics, dead-time (500–4000 ns), peak drive current (1.5 mA–1 A source / 3 mA–2 A sink), and VDS overcurrent threshold settings.
It features dedicated source (SHx) and drain (DLx) sense inputs per half-bridge, enabling accurate high-side current sensing and reverse-supply MOSFET control. The device supports 6x, 3x, 1x, and independent PWM modes, accepts 3.3-V/5-V logic inputs, and provides nFAULT open-drain fault signaling with register-accessible fault detail for system-level diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 5.5 V to 60 V VM input - supports automotive battery transients per ISO 16750-2 and enables direct integration into 12-V/24-V systems without external DC/DC pre-regulation. |
| Gate Drive Current | 1.5 mA to 1 A peak source / 3 mA to 2 A peak sink - programmable via SPI or hardware resistors to match MOSFET Qg and optimize switching loss vs. EMI trade-offs. |
| Integrated LDO | 3.3 V ±0.3 V at up to 30 mA - powers external microcontrollers or level-shifters, eliminating need for separate logic supply in compact motor modules. |
| Protection Functions | VM UVLO, charge pump UV, short-to-battery/ground, MOSFET overcurrent, gate driver fault, thermal warning/shutdown - all latched or auto-recoverable per configuration, with fault details readable via SPI. |
| Interface | SPI with SDO/SDI/SCLK/nSCS - enables real-time configuration of dead time, drive strength, fault response, and diagnostic enablement without hardware changes. |
| Thermal Performance | RθJA = 26.5°C/W (HTQFP-48) - validated for continuous operation at TA = 125°C with proper PCB copper area and thermal pad soldering to PGND. |
| Automotive Qualification | AEC-Q100 Grade 1 (–40°C to +125°C) - qualified for under-hood and cabin-mounted motor control applications including fuel pumps and HVAC blowers. |
Pinout & Package
DRV8340SPHPRQ1 is housed in a 48-pin HTQFP package (7.0 mm × 7.0 mm) with exposed thermal pad, optimized for automotive thermal reliability and board-level manufacturability. The thermal pad must be soldered to PGND for safe operation at full load.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GHA, GHB, GHC | High-side gate driver outputs | Drive gates of three high-side N-MOSFETs; each referenced to its dedicated SHx pin for accurate high-side sourcing. |
| GLA, GLB, GLC | Low-side gate driver outputs | Drive gates of three low-side N-MOSFETs; each referenced to PGND and configurable for independent PWM timing. |
| SHA, SHB, SHC | High-side source sense inputs | Connect to high-side MOSFET sources to enable accurate high-side current monitoring and reverse-supply protection control. |
| DLA, DLB, DLC | Low-side drain sense inputs | Monitor phase-node voltage during shoot-through detection and support offline short-to-battery diagnostics. |
| INHA–INLC | PWM control inputs | Six independent logic-level inputs accepting 3.3-V/5-V signals; support 6x, 3x, 1x, or fully independent PWM modes. |
| nFAULT | Open-drain fault indicator | Asserts low during any active fault condition; requires external pullup; fault type decoded via SPI register reads. |
| SDO, SDI, SCLK, nSCS | SPI interface pins | Full-duplex serial interface for configuration, status readback, and fault logging - essential for diagnostic compliance in ASIL-B systems. |
| DVDD | 3.3-V regulated output | Stable 3.3-V supply capable of sourcing 30 mA; used for MCU I/O, level shifters, or sensor biasing within the motor module. |
Key Features
| Feature | Design Value |
|---|---|
| Independent half-bridge control | Dedicated SHx/DLx pins per phase enable true independent MOSFET control - critical for solenoid drive and field-oriented control (FOC) with asymmetric timing. |
| Configurable slew rate | Adjustable via IDRIVE pin or SPI register to reduce EMI during turn-on/turn-off while maintaining MOSFET SOA integrity. |
| Charge-pump architecture | Enables 100% high-side duty cycle without bootstrap capacitor limitations - eliminates dead-time constraints in regenerative braking and bidirectional motor control. |
| Comprehensive fault coverage | Eight distinct fault types (UVLO, CPUV, SHT_BAT, SHT_GND, OCP, GDF, OTW, OTSD) with latch/auto-recover options and SPI-accessible status - meets ISO 26262 diagnostic coverage requirements. |
| Multi-mode PWM interface | Supports 6x (six independent inputs), 3x (three complementary pairs), 1x (single input per phase), and independent modes - simplifies integration with diverse MCU architectures. |
Applications
| BLDC Motor Control | Fuel & Water Pumps |
|---|---|
|
Use Scenario: 3-phase BLDC motor in electric power steering (EPS) or HVAC blower with field-oriented control. IC Role / Device Role / Timing Role: Three-phase gate driver providing synchronized, dead-time-controlled high- and low-side gate signals with real-time current feedback via SHx/DLx sensing. Use Value: Enables precise torque control and smooth commutation at up to 200 kHz PWM frequency while maintaining AEC-Q100 reliability across temperature extremes. |
Use Scenario: 12-V/24-V automotive fuel pump module requiring robust overcurrent and thermal protection. IC Role / Device Role / Timing Role: Smart gate driver managing N-MOSFET bridge with integrated OCP, SHT_BAT/GND detection, and nFAULT signaling to ECU. Use Value: Eliminates need for discrete protection circuitry and reduces BOM count by integrating LDO, diagnostics, and fault reporting in one AEC-Q100-qualified package. |
| Solenoid Actuation | Cooling Fan Modules |
|
Use Scenario: High-current solenoid valve in transmission control or brake-by-wire systems demanding independent high-side control. IC Role / Device Role / Timing Role: Gate driver configured in independent mode with SHx-sense feedback to regulate solenoid current and detect coil open/short faults. Use Value: Dedicated SHx/DLx pins allow accurate high-side current measurement without shunt resistor, reducing power loss and PCB area. |
Use Scenario: Radiator cooling fan in engine bay with variable-speed control and stall detection. IC Role / Device Role / Timing Role: Three-phase driver supporting 6x PWM input for fine-grained speed resolution and VDS-based overcurrent protection during fan startup/stall. Use Value: Integrated VDS monitor and programmable OCP threshold prevent MOSFET failure during locked-rotor conditions without external comparators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8343SPHPRQ1 | SPI-only variant with identical pinout, same 1-A/2-A drive capability, but adds enhanced diagnostics including VDS-based phase current estimation and improved thermal reporting. | Better suited for ASIL-B systems requiring higher diagnostic coverage; lacks hardware interface fallback mode. | Select when SPI-based configurability and advanced diagnostics outweigh need for H/W pin fallback. |
| DRV8353RSRTVRQ1 | HTSSOP-48 package (6.1 mm × 6.1 mm), lower RθJA (32.5°C/W), same SPI interface and drive specs, but no VDS monitor pin or nDIAG control. | Preferred for space-constrained modules where thermal pad area is limited; reduced diagnostic flexibility for cost-sensitive designs. | Choose for compact layouts where 7×7 mm HTQFP footprint is prohibitive and full VDS diagnostic capability is not required. |
Compared with DRV8340SPHPRQ1, DRV8343SPHPRQ1 offers deeper diagnostic visibility for functional safety compliance, while DRV8353RSRTVRQ1 trades package size and thermal performance for smaller footprint - both require layout review due to non-pin-compatible packaging and differing pin functions (e.g., missing nDIAG, VDS).
Availability
DRV8340SPHPRQ1 is available at Aetrix Electronics and suitable for automotive BLDC motor control, fuel/water pump modules, solenoid actuation, and cooling fan systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DRV8340SPHPRQ1 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 and embedded processing technologies, with deep expertise in automotive-grade power management and motor control solutions.
DRV8340SPHPRQ1 belongs to TI's automotive gate driver product line, designed specifically for AEC-Q100-compliant three-phase motor control in 12-V/24-V vehicles - emphasizing robustness, integrated protection, and flexible interface options for EPS, HVAC, and fluid control systems.
FAQ
What is the function of the nDIAG pin on the DRV8340SPHPRQ1?
The nDIAG pin on the DRV8340SPHPRQ1 controls open-load, short-to-battery, and short-to-ground diagnostics at power-up. Leaving it unconnected or tied to AGND enables diagnostics; connecting it to DVDD disables them. This pin allows system designers to selectively activate or suppress diagnostics based on application safety requirements without firmware changes - a key feature for modular motor control designs using the DRV8340SPHPRQ1.
Does the DRV8340SPHPRQ1 support 100% duty cycle operation for high-side MOSFETs?
Yes, the DRV8340SPHPRQ1 supports 100% high-side duty cycle using its integrated charge-pump architecture, which generates a boosted gate drive voltage (VCP) independent of the phase-node voltage. This eliminates reliance on bootstrap capacitors and enables continuous conduction mode in regenerative braking and bidirectional motor control - a core capability confirmed in the DRV8340SPHPRQ1 datasheet Section 3 and electrical characteristics table.
How is dead time configured on the DRV8340SPHPRQ1?
Dead time on the DRV8340SPHPRQ1 is configured exclusively via SPI register writes (DEAD_TIME bits) and offers four fixed values: 500 ns, 1000 ns, 2000 ns, or 4000 ns. Unlike hardware-interface variants, the DRV8340SPHPRQ1 does not support MODE pin strapping for dead time selection - all timing parameters must be set through the SPI interface during initialization or runtime reconfiguration.
What is the maximum ambient temperature rating for continuous operation of the DRV8340SPHPRQ1?
The DRV8340SPHPRQ1 is rated for continuous operation at ambient temperatures from –40°C to +125°C (AEC-Q100 Grade 1). This specification is validated under recommended operating conditions with proper PCB thermal design - including full soldering of the exposed thermal pad to PGND and adequate copper pour - ensuring reliable performance in under-hood automotive environments where the DRV8340SPHPRQ1 is commonly deployed.
Can the DRV8340SPHPRQ1 drive both high-side and low-side N-channel MOSFETs simultaneously in a three-phase inverter?
Yes, the DRV8340SPHPRQ1 integrates three independent half-bridge drivers, each capable of driving one high-side and one low-side N-channel MOSFET. Its dedicated SHx and DLx sense pins, combined with charge-pump-based high-side drive and PGND-referenced low-side drive, enable full synchronous rectification and precise phase control - a fundamental capability confirmed across the DRV8340SPHPRQ1 functional description, pinout, and application schematics.
DRV8340SPHPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-PowerTQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Multiphase
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Half Bridge (3)
- Interface:
- PWM, SPI
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- 5.5V ~ 60V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-HTQFP (7x7)
DRV8340SPHPRQ1 FAQ
1.How can I place an order for DRV8340SPHPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8340SPHPRQ1 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 DRV8340SPHPRQ1 reliable?
The price and inventory of DRV8340SPHPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8340SPHPRQ1 is usually 5 days.
3.What payment methods are accepted for DRV8340SPHPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8340SPHPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8340SPHPRQ1?
DRV8340SPHPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8340SPHPRQ1 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 DRV8340SPHPRQ1?
For technical support, including DRV8340SPHPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8340SPHPRQ1 requirements.
6.How does Aetrix verify that DRV8340SPHPRQ1 is sourced from the original manufacturer or authorized distributors?
All DRV8340SPHPRQ1 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 DRV8340SPHPRQ1 meets industry standards.
7.What is the process for return or replacement of DRV8340SPHPRQ1?
All DRV8340SPHPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DRV8340SPHPRQ1, 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 DRV8340SPHPRQ1 part is unused and in its original packaging.
Return procedure for DRV8340SPHPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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