Texas Instruments DRV8340HPHPRQ1

Overview

DRV8340HPHPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive three-phase smart gate driver IC for driving six N-channel MOSFETs in independent half-bridge configurations. It operates from 5.5 V to 60 V, delivers up to 1-A peak source and 2-A peak sink gate drive current, integrates a 3.3-V/30-mA LDO, and supports hardware-configurable PWM modes (6x/3x/1x/independent) for BLDC motor control in 12-V/24-V vehicle systems.

For engineers reviewing the DRV8340HPHPRQ1 datasheet, DRV8340HPHPRQ1 pinout, DRV8340HPHPRQ1 application, or DRV8340HPHPRQ1 equivalent, this page provides verified technical context on its independent high-side/low-side control architecture, charge-pump-based 100% duty-cycle capability, fault reporting via nFAULT, thermal shutdown, and configurable slew rate - all critical for automotive solenoid, pump, and fan module designs.

Technical Context

The DRV8340HPHPRQ1 implements a hardware-interface (H/W) variant of the DRV8340-Q1 family with dedicated SHx/DLx sense pins enabling true independent MOSFET control per phase - essential for solenoid drive where high-side and low-side switching must be decoupled. Its integrated charge pump generates VCP up to 12.5 V (at VM = 13 V) to sustain high-side NMOS gate drive across full duty cycle.

Protection is implemented at silicon level: VM undervoltage lockout (UVLO), charge pump UV (CPUV), short-to-battery/ground detection, MOSFET overcurrent (OCP), gate driver fault (GDF), and thermal warning/shutdown (OTW/OTSD) are all monitored and signaled via the open-drain nFAULT pin. Configuration is set via external resistors on MODE, IDRIVE, and VDS pins - no SPI required.

Key Specifications

Pinout & Package

DRV8340HPHPRQ1 is housed in a 48-pin HTQFP package (7.00 mm × 7.00 mm) with exposed thermal pad soldered to PCB ground for thermal management. Pin functions are defined for the H/W variant (DRV8340H), confirmed in TI SLVSDZ9 datasheet Section 6.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar three-phase gate driver applications.

Compared with DRV8340HPHPRQ1, DRV8343HPHPRQ1 offers identical hardware configurability and footprint but with factory-set dead time, while DRV8323RSRTVRQ1 trades H/W simplicity for richer SPI-controlled diagnostics and current sensing - making it more complex but higher-fidelity for demanding FOC applications.

Availability

DRV8340HPHPRQ1 is available at Aetrix Electronics and suitable for automotive BLDC motor control, fuel/water pump modules, HVAC fan drivers, and solenoid actuation systems requiring stable component supply across extended temperature ranges and automotive qualification.

Supply support for DRV8340HPHPRQ1 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 DRV8340-Q1 product line delivers AEC-Q100 qualified three-phase gate drivers optimized for 12-V/24-V automotive motor-control applications - emphasizing independent half-bridge control, robust protection, and hardware-first configuration for functional safety and design simplicity.

FAQ

What is the maximum operating voltage for DRV8340HPHPRQ1?

The DRV8340HPHPRQ1 supports a continuous VM supply range of 5.5 V to 50 V and withstands transient overvoltage up to 60 V per ISO 16750-2. This allows reliable operation during automotive load-dump events and cold-crank conditions down to 5.5 V, ensuring uninterrupted gate drive for N-channel MOSFETs in 12-V and 24-V systems. The charge pump remains functional across this full range.

Does DRV8340HPHPRQ1 require an external microcontroller to configure settings?

No, DRV8340HPHPRQ1 does not require an external microcontroller for configuration. As a hardware-interface (H/W) variant, all key parameters - including PWM mode (6x/3x/1x/independent), gate drive current (1.5 mA–1 A source / 3 mA–2 A sink), and VDS overcurrent threshold - are set via external resistors on the MODE, IDRIVE, and VDS pins. This eliminates SPI communication overhead and firmware dependencies.

How does the nFAULT pin function on DRV8340HPHPRQ1?

The nFAULT pin on DRV8340HPHPRQ1 is an open-drain output that pulls logic low during any detected fault condition - including VM undervoltage, charge pump fault, short-to-battery/ground, MOSFET overcurrent, gate driver fault, or thermal warning/shutdown. It requires an external pullup resistor and enables immediate system-level fault response without reading internal registers, simplifying safety-critical diagnostics in automotive ECUs.

Can DRV8340HPHPRQ1 drive both high-side and low-side N-channel MOSFETs independently?

Yes, DRV8340HPHPRQ1 provides three independent half-bridge drivers with dedicated source (SHx) and drain (DLx) sense pins per phase, enabling true independent control of high-side and low-side N-channel MOSFETs. This architecture supports advanced timing schemes such as independent PWM for solenoid drive or regenerative braking, and prevents shoot-through via hardware-enforced dead time.

What thermal performance can be expected from DRV8340HPHPRQ1 in a typical automotive PCB layout?

In a standard 4-layer automotive PCB with the exposed thermal pad soldered to a 250 mm² copper pour tied to ground, DRV8340HPHPRQ1 achieves a junction-to-board thermal resistance (RθJB) of 6.7°C/W. At 125°C ambient and 1-W power dissipation, this yields ~132°C junction temperature - within the 150°C absolute maximum. Proper thermal pad soldering and local copper area are essential to maintain AEC-Q100 Grade 1 operation.