Produktdetails

Number of full bridges 2 Vs (min) (V) 4.9 Vs ABS (max) (V) 40 Sleep current (µA) 5 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Inline Current sense Amplifier, Open-Load Detection, Smart Gate Drive Rating Automotive Operating temperature range (°C) -40 to 125
Number of full bridges 2 Vs (min) (V) 4.9 Vs ABS (max) (V) 40 Sleep current (µA) 5 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Inline Current sense Amplifier, Open-Load Detection, Smart Gate Drive Rating Automotive Operating temperature range (°C) -40 to 125
HTQFP (PHP) 48 81 mm² 9 x 9 VQFN (RHA) 40 36 mm² 6 x 6 VQFN (RVJ) 56 64 mm² 8 x 8
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Multi-channel half-bridge gate drivers
    • Pin to pin 4 and 8 half-bridge driver variants
    • 4.9V to 37V (40V abs. max) operating range
    • 4 PWM inputs with output mapping
    • Tripler charge pump for 100% PWM
    • Half-bridge, H-bridge, and SPI control modes
  • Smart multi-stage gate drive architecture
    • Adjustable slew rate control
    • Adaptive propagation delay control
    • 50µA to 62mA peak source current output
    • 50µA to 62mA peak sink current output
    • Integrated dead-time handshaking
  • 2x wide common mode current shunt amplifiers
    • Supports inline, high-side, or low-side
    • Adjustable gain settings (10, 20, 40, 80V/V)
  • Multiple interface options available
    • SPI: Detailed configuration and diagnostics
    • H/W: Simplified control and less MCU pins
  • Compact VQFN packages with wettable flanks
  • Integrated protection features
    • Dedicated driver disable pin (DRVOFF)
    • Low IQ, sleep mode motor braking (BRAKE)
    • Supply and regulator voltage monitors
    • MOSFET VDS overcurrent monitors
    • MOSFET VGS gate fault monitors
    • Charge pump for reverse polarity MOSFET
    • Offline open load and short circuit diagnostics
    • Device thermal warning and shutdown
    • Window watchdog timer
    • Fault condition interrupt pin (nFAULT)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Multi-channel half-bridge gate drivers
    • Pin to pin 4 and 8 half-bridge driver variants
    • 4.9V to 37V (40V abs. max) operating range
    • 4 PWM inputs with output mapping
    • Tripler charge pump for 100% PWM
    • Half-bridge, H-bridge, and SPI control modes
  • Smart multi-stage gate drive architecture
    • Adjustable slew rate control
    • Adaptive propagation delay control
    • 50µA to 62mA peak source current output
    • 50µA to 62mA peak sink current output
    • Integrated dead-time handshaking
  • 2x wide common mode current shunt amplifiers
    • Supports inline, high-side, or low-side
    • Adjustable gain settings (10, 20, 40, 80V/V)
  • Multiple interface options available
    • SPI: Detailed configuration and diagnostics
    • H/W: Simplified control and less MCU pins
  • Compact VQFN packages with wettable flanks
  • Integrated protection features
    • Dedicated driver disable pin (DRVOFF)
    • Low IQ, sleep mode motor braking (BRAKE)
    • Supply and regulator voltage monitors
    • MOSFET VDS overcurrent monitors
    • MOSFET VGS gate fault monitors
    • Charge pump for reverse polarity MOSFET
    • Offline open load and short circuit diagnostics
    • Device thermal warning and shutdown
    • Window watchdog timer
    • Fault condition interrupt pin (nFAULT)

The DRV871x-Q1 family of devices are highly integrated, multi-channel gate drivers intended for driving multiple motors or loads. The devices integrate either 4 (DRV8714-Q1) or 8 (DRV8718-Q1) half-bridge gate drivers, driver power supplies, current shunt amplifiers, and protection monitors reducing total system complexity, size, and cost.

A smart gate drive architecture manages dead time to prevent shoot-through, controls slew rate to decrease electromagnetic interference (EMI), and optimizes propagation delay for enhanced performance.

Input modes are provided for independent half-bridge or H-bridge control. Four PWM inputs can be multiplexed between the different drivers in combination with SPI control.

Wide common mode shunt amplifiers provide inline current sensing to continuously measure motor current even during recirculating windows. The amplifier can be used in low-side or high-side sense configurations if inline sensing is not required.

The devices provide an array of protection features to promote robust system operation. These include under and overvoltage monitors, VDS overcurrent and VGS gate fault monitors for the external MOSFETs, offline open load and short circuit diagnostics, and internal thermal warning and shutdown protection.

The DRV871x-Q1 family of devices are highly integrated, multi-channel gate drivers intended for driving multiple motors or loads. The devices integrate either 4 (DRV8714-Q1) or 8 (DRV8718-Q1) half-bridge gate drivers, driver power supplies, current shunt amplifiers, and protection monitors reducing total system complexity, size, and cost.

A smart gate drive architecture manages dead time to prevent shoot-through, controls slew rate to decrease electromagnetic interference (EMI), and optimizes propagation delay for enhanced performance.

Input modes are provided for independent half-bridge or H-bridge control. Four PWM inputs can be multiplexed between the different drivers in combination with SPI control.

Wide common mode shunt amplifiers provide inline current sensing to continuously measure motor current even during recirculating windows. The amplifier can be used in low-side or high-side sense configurations if inline sensing is not required.

The devices provide an array of protection features to promote robust system operation. These include under and overvoltage monitors, VDS overcurrent and VGS gate fault monitors for the external MOSFETs, offline open load and short circuit diagnostics, and internal thermal warning and shutdown protection.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet DRV871x-Q1 Automotive Multi-Channel Smart Half-Bridge Gate Drivers With Wide Common Mode Inline Current Sense Amplifiers datasheet (Rev. D) PDF | HTML 17 Apr 2024
White paper Driving High-Voltage Contactors in EV and HEVs (Rev. A) PDF | HTML 11 Jul 2024
Application note Bulk Capacitor Sizing for DC Motor Drive Applications PDF | HTML 02 Jul 2024
Technical article Exploring the benefits of multichannel gate drivers in automotive power seats PDF | HTML 29 Mär 2022
More literature TI Motor Drives Automotive Body Motors Webinar 02 Jul 2021
Application note Daisy Chain Implementation for Serial Peripheral Interface (Rev. A) 07 Apr 2021
Application note Understanding Smart Gate Drive (Rev. D) 01 Mär 2021
Application brief Integrated Protection Against Back EMF Overvoltage in Motor Drive Systems (Rev. A) PDF | HTML 04 Feb 2021
Technical article How analog integration simplifies automotive body motor controller designs PDF | HTML 23 Okt 2020
Application brief Benefits of a Wide Common Mode, Differential Current Shunt Amplifier PDF | HTML 08 Sep 2020
White paper Smart Gate Drive 02 Jul 2019
Application note Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) 19 Feb 2019
Application note External or internal FETs for motor drive in automotive applications (Rev. A) 11 Feb 2019
Application note Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) 20 Aug 2018
Application note Relay Replacement for Brushed DC Motor Drive in Automotive Applications 14 Nov 2016

Design und Entwicklung

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Benutzerhandbuch: PDF
Evaluierungsplatine

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Das DRV8714S-Q1-Evaluierungsmodul (EVM) ermöglicht eine einfache Evaluierung des DRV8714S-Q1-4-Kanal-Gate-Treibers mit Inline-Strommessung. Der Baustein auf diesem EVM ist die 56-polige RVJ-Gehäusevariante (8 mm x 8 mm) mit SPI-Schnittstelle, die einen breiten Versorgungseingangsbereich von 4,9 V (...)

Benutzerhandbuch: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HTQFP (PHP) 48 Ultra Librarian
VQFN (RHA) 40 Ultra Librarian
VQFN (RVJ) 56 Ultra Librarian

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  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
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