DRV3901-Q1
Automotive, 40V, 3.4A single-channel pyro-fuse driver
DRV3901-Q1
- 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.
Solicitar más información
La hoja de datos completa está disponible. Solicitar ahora
La documentación de seguridad funcional está disponible. Solicitar ahora
Documentación técnica
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.
DRV3901-Q1EVM — Módulo de evaluación DRV3901-Q1
DRV3901-Q1EVM-FW — DRV3901-Q1EVM firmware
Productos y hardware compatibles
Productos
Drivers de solenoides
Desarrollo de hardware
Placa de evaluación
DRV3901-Q1EVM-GUI — DRV3901-Q1EVM GUI
Productos y hardware compatibles
Productos
Drivers de solenoides
Desarrollo de hardware
Placa de evaluación
DRV3901-Q1EVM-GUI-FW-DF — DRV3901-Q1EVM GUI, MCU FW on EVM, and EVM design files
Productos y hardware compatibles
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
HVSSOP (DGQ) | 28 | Ultra Librarian |
Pedidos y calidad
- 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
- Lugar de fabricación
- Lugar de ensamblaje
Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.
Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI.