Detalles del producto

Control interface Hardware (GPIO), SPI Features Fault output, Overcurrent protection, Short circuit protection, Voltage monitoring Vs (max) (V) 28 Vs ABS (max) (V) 40 Operating temperature range (°C) -40 to 125 Rating Automotive
Control interface Hardware (GPIO), SPI Features Fault output, Overcurrent protection, Short circuit protection, Voltage monitoring Vs (max) (V) 28 Vs ABS (max) (V) 40 Operating temperature range (°C) -40 to 125 Rating Automotive
HVSSOP (DGQ) 28 34.79 mm² 7.1 x 4.9
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, T A
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation to aid ISO26262 system design up to ASIL C
  • Highly integrated squib driver solution targeted at automotive EV pyro-fuse application
    • Integration of power supplies, current regulation, diagnostics, and safety functions
    • SPI or HW pin-based triggering for flexible interface options and rapid firing reaction
    • Diagnostic functions for system energy reservoir capacitor and squib health monitoring
    • Built-in-self-test and diagnostic functions for power supplies, interfaces, drivers, and monitors
    • Architecture for reliable operation with redundant power supplies, low-side and high-driver drivers, and secondary monitoring logic
  • Up to 28-V (40-V abs. max) operating voltage
  • Compact HVSSOP-28 (DGQ) leaded package
  • Two-wire load interface with protected, current controlled high-side and protected secondary low-side switches
  • Integrated charge pump for minimal MOSFET drop out voltage
  • 4-wire, addressable, 24-bit SPI with CRC protection
    • Allows multiple device to operate on the same SPI
    • Allows for broadcast commands to multiple devices.
  • Configurable deployment currents (1.2 A / 2 ms, 1.75 A / 0.5 ms, up to 3.4 A / 0.5 ms)
  • Configurable deployment interface options
    • 2-pin HW trigger with PWM or level signaling
    • Protected SPI command with CRC
  • Comprehensive off-state diagnostics
    • Device built-in-self-test
    • Driver output and switch test
    • Interface test
    • Energy reservoir capacitor test
    • Squib resistance test
  • Configurable fault indicator (nFAULT)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, T A
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation to aid ISO26262 system design up to ASIL C
  • Highly integrated squib driver solution targeted at automotive EV pyro-fuse application
    • Integration of power supplies, current regulation, diagnostics, and safety functions
    • SPI or HW pin-based triggering for flexible interface options and rapid firing reaction
    • Diagnostic functions for system energy reservoir capacitor and squib health monitoring
    • Built-in-self-test and diagnostic functions for power supplies, interfaces, drivers, and monitors
    • Architecture for reliable operation with redundant power supplies, low-side and high-driver drivers, and secondary monitoring logic
  • Up to 28-V (40-V abs. max) operating voltage
  • Compact HVSSOP-28 (DGQ) leaded package
  • Two-wire load interface with protected, current controlled high-side and protected secondary low-side switches
  • Integrated charge pump for minimal MOSFET drop out voltage
  • 4-wire, addressable, 24-bit SPI with CRC protection
    • Allows multiple device to operate on the same SPI
    • Allows for broadcast commands to multiple devices.
  • Configurable deployment currents (1.2 A / 2 ms, 1.75 A / 0.5 ms, up to 3.4 A / 0.5 ms)
  • Configurable deployment interface options
    • 2-pin HW trigger with PWM or level signaling
    • Protected SPI command with CRC
  • Comprehensive off-state diagnostics
    • Device built-in-self-test
    • Driver output and switch test
    • Interface test
    • Energy reservoir capacitor test
    • Squib resistance test
  • Configurable fault indicator (nFAULT)

The DRV3901-Q1 is a highly integrated squib driver intended for automotive EV pyro-fuse applications. It includes the power supplies, current sensing and regulation, and diagnostics and protection functions needed to drive a squib load. It incorporates several key functions unique to the device that are different from traditional squib drivers. These functions include a hardware pin trigger interface, an energy reservoir capacitor diagnostic, an addressable SPI, and optimized driver stage with integrated charge pump and additional deployment current options.

The hardware pin trigger (TRGx) interface allows for a deployment command to be issued directly in hardware to the DRV3901-Q1. This allows the flexiblity to either trigger the deployment with MCU hardware pins, directly with an overcurrent sensor, or through other external hardware circuit monitors. The hardware trigger pins support a 2-pin interface with both threshold or PWM based options to ensure robustness against miss deployment while still providing flexiblity to support a variety of interface options. Additionally, CRC protected deployment commands can be sent through the SPI bus as a secondary method.

To support a diagnostic for the system energy reservoir capacitor, the DRV3901-Q1 integrates a switch and monitor circuit to be able to bias and monitor the discharge voltage of the reservoir capacitor. This enables the device and the external MCU to detect a loss/failure of the reservoir capacitor or its approximate value in normal operation.

An addressable SPI, allow multiple devices to be controlled on a shared SPI bus. In addition to reducing required MCU resources, the addressable SPI incorporates a broadcast command structure that allows multiple drivers to be coordinated to trigger simultaneously or with staggered delays. The SPI incorporate multiple robustness functions including a CRC, address readback capability, and various bus fault detection mechanisms.

The power stage utilizes a protected high-side and low-side switch to ensure robustness against unintended driving due to a variety of fault conditions. An integrated charge pump ensures minimal drop out voltage across the switches during deployment to enable operation down to low supply voltages. A wide variety of deployment options are available to optimize for different types of squib loads or for specific application requirements.

The DRV3901-Q1 is a highly integrated squib driver intended for automotive EV pyro-fuse applications. It includes the power supplies, current sensing and regulation, and diagnostics and protection functions needed to drive a squib load. It incorporates several key functions unique to the device that are different from traditional squib drivers. These functions include a hardware pin trigger interface, an energy reservoir capacitor diagnostic, an addressable SPI, and optimized driver stage with integrated charge pump and additional deployment current options.

The hardware pin trigger (TRGx) interface allows for a deployment command to be issued directly in hardware to the DRV3901-Q1. This allows the flexiblity to either trigger the deployment with MCU hardware pins, directly with an overcurrent sensor, or through other external hardware circuit monitors. The hardware trigger pins support a 2-pin interface with both threshold or PWM based options to ensure robustness against miss deployment while still providing flexiblity to support a variety of interface options. Additionally, CRC protected deployment commands can be sent through the SPI bus as a secondary method.

To support a diagnostic for the system energy reservoir capacitor, the DRV3901-Q1 integrates a switch and monitor circuit to be able to bias and monitor the discharge voltage of the reservoir capacitor. This enables the device and the external MCU to detect a loss/failure of the reservoir capacitor or its approximate value in normal operation.

An addressable SPI, allow multiple devices to be controlled on a shared SPI bus. In addition to reducing required MCU resources, the addressable SPI incorporates a broadcast command structure that allows multiple drivers to be coordinated to trigger simultaneously or with staggered delays. The SPI incorporate multiple robustness functions including a CRC, address readback capability, and various bus fault detection mechanisms.

The power stage utilizes a protected high-side and low-side switch to ensure robustness against unintended driving due to a variety of fault conditions. An integrated charge pump ensures minimal drop out voltage across the switches during deployment to enable operation down to low supply voltages. A wide variety of deployment options are available to optimize for different types of squib loads or for specific application requirements.

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Documentación técnica

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Tipo Título Fecha
* Data sheet DRV3901-Q1 Single Channel Squib Driver For Automotive EV Pyro-Fuse datasheet PDF | HTML 12 oct 2023
EVM User's guide DRV3901-Q1EVM-GUI User's Guide (Rev. A) PDF | HTML 09 sep 2024
White paper Designing Safer, Smarter and More Connected Battery Management Systems PDF | HTML 23 ene 2024
Technical article How squib and contactor drivers help improve safety and efficiency in HEV/EV battery disconnect systems PDF | HTML 08 ene 2024
Certificate DRV3901Q1EVM EU Declaration of Conformity (DoC) 27 sep 2023

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

DRV3901-Q1EVM — Módulo de evaluación DRV3901-Q1

El DRV3901-Q1 es un dispositivo totalmente integrado para accionar un iniciador pirofusible en un sistema automotriz de 12 V. El DRV3901-Q1EVM presenta dos dispositivos DRV3901-Q1 para ofrecer flexibilidad en la comprobación de sistemas paralelos o redundantes. El dispositivo es compatible con una (...)
Guía del usuario: PDF | HTML
Controlador o biblioteca

DRV3901-Q1-SAFETY-DOCS DRV3901-Q1 safety documentation

DRV3901-Q1 safety documentation which includes safety manual, FMEDAs, and FS summary.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Drivers de solenoides
DRV3901-Q1 Automotive, 40V, 3.4A single-channel pyro-fuse driver
Firmware

DRV3901-Q1EVM-FW DRV3901-Q1EVM firmware

Zipped folder containing manifest and firmware source code for the evaluation modules of the DRV3901-Q1.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Drivers de solenoides
DRV3901-Q1 Automotive, 40V, 3.4A single-channel pyro-fuse driver
Desarrollo de hardware
Placa de evaluación
DRV3901-Q1EVM Módulo de evaluación DRV3901-Q1
Opciones de descarga
GUI para el módulo de evaluación (EVM)

DRV3901-Q1EVM-GUI DRV3901-Q1EVM GUI

Zipped folder containing the installers for the GUI. Detailed instructions on how to use the GUI can be found in the User's Guide of the DRV3901-Q1EVM GUI.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Drivers de solenoides
DRV3901-Q1 Automotive, 40V, 3.4A single-channel pyro-fuse driver
Desarrollo de hardware
Placa de evaluación
DRV3901-Q1EVM Módulo de evaluación DRV3901-Q1
Iniciar Opciones de descarga
Herramienta de diseño

DRV3901-Q1EVM-GUI-FW-DF DRV3901-Q1EVM GUI, MCU FW on EVM, and EVM design files

DRV3901-Q1 evaluation module
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Drivers de solenoides
DRV3901-Q1 Automotive, 40V, 3.4A single-channel pyro-fuse driver
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HVSSOP (DGQ) 28 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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