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Supervisores de tensión de suministro

TPS3702-Q1

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Detector automotriz de tensión de ventana de alta precisión para monitorización de sobretensión y su

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TPS3702-Q1

ACTIVO
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Detalles del producto

Rating Automotive Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.91, 1, 1.09, 1.2, 1.64, 1.69, 1.8, 3, 3.1, 3.3, 4.55, 5 Features Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 0.9 Iq (typ) (mA) 0.006 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0, 5, 10, 100, 200 Watchdog timer WDI (s) None TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Rating Automotive Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.91, 1, 1.09, 1.2, 1.64, 1.69, 1.8, 3, 3.1, 3.3, 4.55, 5 Features Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 0.9 Iq (typ) (mA) 0.006 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0, 5, 10, 100, 200 Watchdog timer WDI (s) None TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
SOT-23-THN (DDC) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • AEC-Q100 Qualified:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Input Voltage Range: 2V to 18V
  • High threshold accuracy:
    • 0.25% (typical)
    • 0.9% (–40°C to 125°C)
  • Fixed window thresholds optimized for nominal rails between 1V and 5V
  • Open-drain outputs for overvoltage and undervoltage indication
  • Internal glitch immunity
  • Threshold adjust using the SET pin
  • Low quiescent current: 7µA (typical)
  • Internal threshold hysteresis: 0.55%, 1.0%
  • SOT-6 package
  • AEC-Q100 Qualified:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Input Voltage Range: 2V to 18V
  • High threshold accuracy:
    • 0.25% (typical)
    • 0.9% (–40°C to 125°C)
  • Fixed window thresholds optimized for nominal rails between 1V and 5V
  • Open-drain outputs for overvoltage and undervoltage indication
  • Internal glitch immunity
  • Threshold adjust using the SET pin
  • Low quiescent current: 7µA (typical)
  • Internal threshold hysteresis: 0.55%, 1.0%
  • SOT-6 package

The TPS3702-Q1 is an integrated overvoltage and undervoltage window voltage detector in a small SOT-6 package. This highly accurate voltage detector is an excellent choice for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Low threshold hysteresis options of 0.55% and 1.0% prevent false reset signals when the monitored voltage supply is in the normal range of operation. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals.

The TPS3702-Q1 does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further increases overall accuracy and reduces solution size and cost. The SET pin is used to select between the two available threshold voltages designed into each device. A separate SENSE input pin and VDD pin allow for the redundancy sought by safety-critical and high-reliability systems. This device also features independent reset outputs for the OV and UV pins; as a result of the open-drain configuration, UV and OV can be tied together.

This device has a low typical quiescent current specification of 7µA . The TPS3702-Q1 is designed for automotive applications and is qualified for AEC-Q100 Grade 1.

The TPS3702-Q1 is an integrated overvoltage and undervoltage window voltage detector in a small SOT-6 package. This highly accurate voltage detector is an excellent choice for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Low threshold hysteresis options of 0.55% and 1.0% prevent false reset signals when the monitored voltage supply is in the normal range of operation. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals.

The TPS3702-Q1 does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further increases overall accuracy and reduces solution size and cost. The SET pin is used to select between the two available threshold voltages designed into each device. A separate SENSE input pin and VDD pin allow for the redundancy sought by safety-critical and high-reliability systems. This device also features independent reset outputs for the OV and UV pins; as a result of the open-drain configuration, UV and OV can be tied together.

This device has a low typical quiescent current specification of 7µA . The TPS3702-Q1 is designed for automotive applications and is qualified for AEC-Q100 Grade 1.
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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 TPS3702-Q1 Automotive High -Accuracy Over and Undervoltage Monitoring datasheet (Rev. C) PDF | HTML 4/03/2024
Información sobre seguridad funcional TPS3702-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 1/03/2021
Libro electrónico Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28/06/2019
Guía de selección Automotive Supervisor and Reset IC Selection Guide PDF | HTML 22/02/2016

Diseño y desarrollo

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Placa de evaluación

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Modelo de simulación

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SBVM438A.ZIP (91 KB) - Modelo PSpice
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Diseño de referencia

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Este diseño de referencia del módulo de cámara aborda la necesidad de cámaras pequeñas en sistemas automotrices al combinar una cámara de imagen de 2 megapíxeles con un serializador de 4 Gbps. Además, proporciona fuentes de alimentación y supervisión de tensión para ambos dispositivos en un factor (...)
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