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TPS37

ACTIVO

Supervisor de ventana de 65 V con corriente quiescente ultrabaja y función de retardo

Detalles del producto

Rating Catalog Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.8, 5, adjustable Features Detection time delay, Latching, Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.001 Output driver type/reset output Active-high, Active-low, Open-drain, Push-Pull Watchdog timer WDI (s) None Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 65 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Rating Catalog Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.8, 5, adjustable Features Detection time delay, Latching, Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.001 Output driver type/reset output Active-high, Active-low, Open-drain, Push-Pull Watchdog timer WDI (s) None Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 65 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
WSON (DSK) 10 6.25 mm² 2.5 x 2.5
  • Functional Safety - Capable
    • Documentation available to functional safety system design
  • Wide supply voltage range: 2.7 V to 65 V
  • SENSE and RESET pins are 65 V graded
  • Low quiescent current: 1 µA (typical)
  • Flexible and wide voltage threshold options
    • 2.7 V to 36 V (1.5% maximum accuracy)
    • 800 mV option (1% maximum accuracy)
  • Built-in hysteresis (V HYS)
    • Percentage options: 2% to 13% (1% steps)
    • Fixed options: V TH < 8 V = 0.5 V, 1 V, 1.5 V, 2 V, 2.5 V
  • Programmable reset time delay
    • 10 nF = 12.8 ms, 10 µF = 12.8 s
  • Programmable sense time delay
    • 10 nF = 1.28 ms, 10 µF = 1.28 s
  • Manual Reset ( MR) feature
  • Output topology: Open-Drain or Push-Pull
  • Functional Safety - Capable
    • Documentation available to functional safety system design
  • Wide supply voltage range: 2.7 V to 65 V
  • SENSE and RESET pins are 65 V graded
  • Low quiescent current: 1 µA (typical)
  • Flexible and wide voltage threshold options
    • 2.7 V to 36 V (1.5% maximum accuracy)
    • 800 mV option (1% maximum accuracy)
  • Built-in hysteresis (V HYS)
    • Percentage options: 2% to 13% (1% steps)
    • Fixed options: V TH < 8 V = 0.5 V, 1 V, 1.5 V, 2 V, 2.5 V
  • Programmable reset time delay
    • 10 nF = 12.8 ms, 10 µF = 12.8 s
  • Programmable sense time delay
    • 10 nF = 1.28 ms, 10 µF = 1.28 s
  • Manual Reset ( MR) feature
  • Output topology: Open-Drain or Push-Pull

The TPS37 is a family of wide input range and low quiescent current window supervisors for fast detection of overvoltage (OV) and undervoltage (UV) conditions. Each device includes a precision internal reference, two independent and configurable voltage comparators and integrated resistor dividers. The TPS37 can be connected directly to and monitor 12 V / 24 V supply rails in a variety of industrial applications including factory automation, motor drives, building automation and others. Built-in hysteresis on the SENSE pins prevents false reset signals when monitoring a supply voltage rail.

The separate VDD and SENSE pins allow redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pins. CTSx and CTRx pins allow delay adjustability on the rising and falling edges of the RESET signals. Also, CTSx functions as a debouncer by ignoring voltage glitches on the monitored voltage rails; CTRx operates as a manual reset ( MR) that can be used to force a system reset.

TPS37 is available in a WSON or SOT-23 package. The central pad is non-conductive to increase the creepage between VDD and GND per guidelines in IEC60664. TPS37 operates over –40°C to +125°C T A.

The TPS37 is a family of wide input range and low quiescent current window supervisors for fast detection of overvoltage (OV) and undervoltage (UV) conditions. Each device includes a precision internal reference, two independent and configurable voltage comparators and integrated resistor dividers. The TPS37 can be connected directly to and monitor 12 V / 24 V supply rails in a variety of industrial applications including factory automation, motor drives, building automation and others. Built-in hysteresis on the SENSE pins prevents false reset signals when monitoring a supply voltage rail.

The separate VDD and SENSE pins allow redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pins. CTSx and CTRx pins allow delay adjustability on the rising and falling edges of the RESET signals. Also, CTSx functions as a debouncer by ignoring voltage glitches on the monitored voltage rails; CTRx operates as a manual reset ( MR) that can be used to force a system reset.

TPS37 is available in a WSON or SOT-23 package. The central pad is non-conductive to increase the creepage between VDD and GND per guidelines in IEC60664. TPS37 operates over –40°C to +125°C T A.

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Documentación técnica

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* Data sheet TPS37 Wide VIN 65 V Dual Channel Overvoltage & Undervoltage (OV & UV) Detector with Programmable Sense and Reset Delay Function datasheet (Rev. E) PDF | HTML 24 ago 2023
Application note Common Applications of Wide VIN Overvoltage and Undervoltage Supervisors PDF | HTML 19 sep 2023
Application brief Using Voltage Supervisors in High Voltage Applications (Rev. B) PDF | HTML 20 feb 2023
Functional safety information TPS37 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 12 may 2021
Application brief High Voltage – Fast Power Fault Detection by Monitoring 24V AC Systems Using TPS PDF | HTML 12 abr 2021

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

TPS37AQ1EVM — Módulo de evaluación TPS37 para supervisor de ventana de 65 V con IQ ultrabaja y función de retardo

El módulo de evaluación (EVM) TPS37 es una plataforma para evaluar la familia de productos TPS37 y TPS38. Con un funcionamiento de hasta 65 V, estos productos mantienen una corriente inactiva baja y ofrecen umbrales de tensión ajustables, tiempos de retardo de detección, reinicio ajustable y (...)

Guía del usuario: PDF | HTML
Modelo de simulación

TPS37 and TPS37-Q1 PSpice Transient Model

SNVMC68.ZIP (662 KB) - PSpice Model
Herramienta de diseño

TPS37-ADJ-CALC TPS37, TPS38, and TPS3760 adjustable-resistor and time-delay calculator

This calculator tool guides the user through the design process for the adjustable variants of the TPS37/38 dual-channel supervisors. The default voltage threshold and hysteresis level for these devices are set to 800 mV and 2% respectively, but can be adjusted through the addition of resistors. (...)
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Supervisores de tensión de suministro
TPS37 Supervisor de ventana de 65 V con corriente quiescente ultrabaja y función de retardo TPS37-Q1 Supervisor automotriz de ventana de 65 V con corriente quiescente ultrabaja y función de retardo TPS3760 Supervisor de sobretensión o subtensión de 65 V con sensor, corriente quiescente ultrabaja y retardo TPS3760-Q1 Supervisor de sobretensión o subtensión de 65 V para automoción con sensor, IQ ultrabaja y retardo TPS38-Q1 Supervisor automotriz de doble canal de 65 V con corriente quiescente ultrabaja y función de retardo
Desarrollo de hardware
Placa de evaluación
TPS37AQ1EVM Módulo de evaluación TPS37 para supervisor de ventana de 65 V con IQ ultrabaja y función de retardo TPS3760EVM Módulo de evaluación TPS3760 para supervisor de sobretensión o subtensión de 65 V con detección, IQ
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (DSK) 10 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

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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