DRV8343-Q1

AKTIV

Intelligenter 3-Phasen-Gate-Treiber, 12- bis 24-V-Batterie, Strom-Shunt-Verstärker, Automobil

Produktdetails

Rating Automotive Architecture Gate driver Control interface 1xPWM, 3xPWM, 6xPWM Gate drive (A) 1 Vs (min) (V) 5.5 Vs ABS (max) (V) 65 Features Current sense Amplifier, Hardware Management I/F, Independent FET Control, SPI/I2C, Smart Gate Drive Operating temperature range (°C) -40 to 125
Rating Automotive Architecture Gate driver Control interface 1xPWM, 3xPWM, 6xPWM Gate drive (A) 1 Vs (min) (V) 5.5 Vs ABS (max) (V) 65 Features Current sense Amplifier, Hardware Management I/F, Independent FET Control, SPI/I2C, Smart Gate Drive Operating temperature range (°C) -40 to 125
HTQFP (PHP) 48 81 mm² (9 mm × 9 mm)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
  • Three independent half-bridge gate driver
    • Dedicated source (SHx) and drain (DLx) pins to support independent MOSFET control
    • Drives 3 high-side and 3 low-side N-channel MOSFETs (NMOS)
  • Smart gate drive architecture
    • Adjustable slew rate control
    • 1.5-mA to 1-A peak source current
    • 3-mA to 2-A peak sink current
  • Charge-pump of gate driver for 100% Duty Cycle
  • 3 Integrated current sense amplifiers (CSAs)
    • Adjustable gain (5, 10, 20, 40 V/V)
    • Bidirectional or unidirectional support
  • SPI (S) and hardware (H) interface available
  • 6x, 3x, 1x, and independent PWM modes
  • Supports 3.3-V, and 5-V logic inputs
  • Charge pump output can be used to drive the reverse supply protection MOSFET
  • Linear voltage regulator, 3.3 V, 30 mA
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Short to battery (SHT_BAT)
    • Short to ground (SHT_GND)
    • MOSFET overcurrent protection (OCP)
    • Gate driver fault (GDF)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indicator (nFAULT)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
  • Three independent half-bridge gate driver
    • Dedicated source (SHx) and drain (DLx) pins to support independent MOSFET control
    • Drives 3 high-side and 3 low-side N-channel MOSFETs (NMOS)
  • Smart gate drive architecture
    • Adjustable slew rate control
    • 1.5-mA to 1-A peak source current
    • 3-mA to 2-A peak sink current
  • Charge-pump of gate driver for 100% Duty Cycle
  • 3 Integrated current sense amplifiers (CSAs)
    • Adjustable gain (5, 10, 20, 40 V/V)
    • Bidirectional or unidirectional support
  • SPI (S) and hardware (H) interface available
  • 6x, 3x, 1x, and independent PWM modes
  • Supports 3.3-V, and 5-V logic inputs
  • Charge pump output can be used to drive the reverse supply protection MOSFET
  • Linear voltage regulator, 3.3 V, 30 mA
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Short to battery (SHT_BAT)
    • Short to ground (SHT_GND)
    • MOSFET overcurrent protection (OCP)
    • Gate driver fault (GDF)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indicator (nFAULT)

The DRV8343-Q1 device is an integrated gate driver for three-phase applications. The device provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The dedicated Source and Drain pins enable the independent MOSFET control for solenoid application. The DRV8343-Q1 generates the correct gate drive voltages using an integrated charge pump sufficient for the high-side MOSFETs and a linear regulator for the low-side MOSFETs. The Smart Gate Drive architecture supports peak gate drive currents up to 1-A source and 2-A. The DRV8343-Q1 can operate from a single power supply and supports a wide input supply range of 5.5 to 60 V for the gate driver.

The 6x, 3x, 1x, and independent input PWM modes allow for simple interfacing to controller circuits. The configuration settings for the gate driver and device are highly configurable through the SPI or hardware (H/W) interface. The DRV8343-Q1 device integrates three low-side current sense amplifiers that allow bidirectional current sensing on all three phases of the drive stage.

A low-power sleep mode is provided to achieve low quiescent current. Internal protection functions are provided for undervoltage lockout, charge pump fault, MOSFET overcurrent, MOSFET short circuit, phase-node short to supply and ground, gate driver fault, and overtemperature. Fault conditions are indicated on the nFAULT pin with details through the device registers for the SPI device variant.

The DRV8343-Q1 device is an integrated gate driver for three-phase applications. The device provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The dedicated Source and Drain pins enable the independent MOSFET control for solenoid application. The DRV8343-Q1 generates the correct gate drive voltages using an integrated charge pump sufficient for the high-side MOSFETs and a linear regulator for the low-side MOSFETs. The Smart Gate Drive architecture supports peak gate drive currents up to 1-A source and 2-A. The DRV8343-Q1 can operate from a single power supply and supports a wide input supply range of 5.5 to 60 V for the gate driver.

The 6x, 3x, 1x, and independent input PWM modes allow for simple interfacing to controller circuits. The configuration settings for the gate driver and device are highly configurable through the SPI or hardware (H/W) interface. The DRV8343-Q1 device integrates three low-side current sense amplifiers that allow bidirectional current sensing on all three phases of the drive stage.

A low-power sleep mode is provided to achieve low quiescent current. Internal protection functions are provided for undervoltage lockout, charge pump fault, MOSFET overcurrent, MOSFET short circuit, phase-node short to supply and ground, gate driver fault, and overtemperature. Fault conditions are indicated on the nFAULT pin with details through the device registers for the SPI device variant.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt DRV8343-Q1 12-V / 24-V Automotive Gate Driver Unit (GDU) with Independent Half Bridge Control and Three Integrated Current Sense Amplifiers datasheet (Rev. A) PDF | HTML 09.04.2019
Application brief Understanding Gate Driver Slew Rate Control, MOSFET Switching Optimization and Protection Features (Rev. A) PDF | HTML 11.12.2025
Anwendungshinweis Using DRV to Drive Solenoids (Rev. A) PDF | HTML 24.04.2022
Anwendungshinweis Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14.10.2021
Anwendungshinweis Hardware Design Considerations for an Electric Bicycle using BLDC Motor (Rev. B) 23.06.2021
Anwendungshinweis System Design Considerations for High-Power Motor Driver Applications PDF | HTML 22.06.2021
Technischer Artikel A basic brushless gate driver design – part 3: integrated vs. discrete half bridge PDF | HTML 16.12.2020
Technischer Artikel How analog integration simplifies automotive body motor controller designs PDF | HTML 23.10.2020
Technischer Artikel How to efficiently drive 12-V and 24-V engine loads in automotive systems PDF | HTML 09.07.2020
Anwendungshinweis Switched Reluctance Motor (SRM) Inverter Design With the DRV8343-Q1 30.01.2020
Anwendungshinweis Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) 19.02.2019
Benutzerhandbuch DRV8343x-Q1EVM GUI User's Guide 29.01.2018

Design und Entwicklung

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Simulationsmodell

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Berechnungstool

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