DRV8770

ACTIVO

Controlador de puente H de 100 V

Detalles del producto

Number of full bridges 1 Vs (min) (V) 5 Vs ABS (max) (V) 115 Control mode Independent 1/2-Bridge Control interface Hardware (GPIO) Topology External FET Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 1 Vs (min) (V) 5 Vs ABS (max) (V) 115 Control mode Independent 1/2-Bridge Control interface Hardware (GPIO) Topology External FET Rating Catalog Operating temperature range (°C) -40 to 125
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • 100-V H-bridge gate driver
    • Drives N-channel MOSFETs (NMOS)
    • Gate driver supply (GVDD): 5-20 V
    • MOSFET supply (SHx) support up to 100 V
  • Integrated bootstrap diodes
  • Supports inverting and non-inverting INLx inputs (QFN package)
  • Bootstrap gate drive architecture
    • 750-mA source current
    • 1.5-A Sink current
  • Supports up to 15s battery powered applications
  • Low leakage current on SHx pins (<55 µA)
  • Absolute maximum BSTx voltage upto 115-V
  • Supports negative transients down to -22 V on SHx pins
  • Adjustable deadtime through DT pin in QFN package

  • Fixed Deadtime insertion of 200 ns in TSSOP package
  • Supports 3.3-V, and 5-V logic inputs with 20-V abs max
  • 4-ns typical propogation delay matching
  • Compact QFN and TSSOP packages and footprints
  • Efficient system design with Power Blocks
  • Integrated protection features
    • BST undervoltage lockout (BSTUV)
    • GVDD undervoltage (GVDDUV)
  • 100-V H-bridge gate driver
    • Drives N-channel MOSFETs (NMOS)
    • Gate driver supply (GVDD): 5-20 V
    • MOSFET supply (SHx) support up to 100 V
  • Integrated bootstrap diodes
  • Supports inverting and non-inverting INLx inputs (QFN package)
  • Bootstrap gate drive architecture
    • 750-mA source current
    • 1.5-A Sink current
  • Supports up to 15s battery powered applications
  • Low leakage current on SHx pins (<55 µA)
  • Absolute maximum BSTx voltage upto 115-V
  • Supports negative transients down to -22 V on SHx pins
  • Adjustable deadtime through DT pin in QFN package

  • Fixed Deadtime insertion of 200 ns in TSSOP package
  • Supports 3.3-V, and 5-V logic inputs with 20-V abs max
  • 4-ns typical propogation delay matching
  • Compact QFN and TSSOP packages and footprints
  • Efficient system design with Power Blocks
  • Integrated protection features
    • BST undervoltage lockout (BSTUV)
    • GVDD undervoltage (GVDDUV)

The DRV8770 device provides two half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The integrated bootstrap diode and external capacitor generate the correct gate drive voltages for the high-side MOSFETs while the GVDD drives the gates of the low-side MOSFETs. The gate drive architecture supports gate drive currents up to 750-mA source and 1.5-A sink.

The high voltage tolerance of the gate drive pins improves system robustness. The SHx phase pins can tolerate significant negative voltage transients, while the high-side gate driver supply can support higher positive voltage transients (115-V absolute maximum) on the BSTx and GHx pins. Small propagation delay and delay matching specifications minimize the dead-time requirement which further improves efficiency. Undervoltage protection is provided for both low and high side through GVDD and BST undervoltage lockout.

The DRV8770 device provides two half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The integrated bootstrap diode and external capacitor generate the correct gate drive voltages for the high-side MOSFETs while the GVDD drives the gates of the low-side MOSFETs. The gate drive architecture supports gate drive currents up to 750-mA source and 1.5-A sink.

The high voltage tolerance of the gate drive pins improves system robustness. The SHx phase pins can tolerate significant negative voltage transients, while the high-side gate driver supply can support higher positive voltage transients (115-V absolute maximum) on the BSTx and GHx pins. Small propagation delay and delay matching specifications minimize the dead-time requirement which further improves efficiency. Undervoltage protection is provided for both low and high side through GVDD and BST undervoltage lockout.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos DRV8770: 100-V Brushed DC Gate Driver datasheet PDF | HTML 29/06/2021
Guía del usuario DRV8770 100-V Gate Driver Evaluation Module PDF | HTML 29/09/2021
Certificado DRV8770EVM EU RoHS Declaration of Conformity (DoC) 16/08/2021

Diseño y desarrollo

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Placa de evaluación

DRV8770EVM — Módulo de evaluación DRV8770 de controlador de puerta de 100 V

El módulo de evaluación DRV8770 (EVM) permite una fácil evaluación del dispositivo DRV8770.

El dispositivo DRV8770 proporciona dos controladores de puerta de medio puente, cada uno capaz de impulsar MOSFET de potencia de canal N de lado alto y lado bajo. DRV8770 está equipado con funciones de (...)

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