Inicio Gestión de la energía Supervisor & reset ICs

Supervisor de subtensión de nanoalimentación de 42 V y tamaño reducido, con retardo y desconexión pr

Detalles del producto

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) Adjustable Features Low Quiescent Current, Reset time delay, Separate VDD & sense, Undervoltage monitor only Iq (typ) (mA) 0.00085 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 1.9 Supply voltage (max) (V) 42 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) Adjustable Features Low Quiescent Current, Reset time delay, Separate VDD & sense, Undervoltage monitor only Iq (typ) (mA) 0.00085 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 1.9 Supply voltage (max) (V) 42 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-5X3 (DRL) 6 2.56 mm² 1.6 x 1.6
  • Wide supply voltage range: 1.9V to 42V
  • VDD, SENSE, and RESET are rated to 42V
  • Low quiescent current: 850nA (typical)
  • High threshold accuracy: 0.5% (typical)
  • Fixed internal threshold voltages: 2.7V to 9.5V
  • Adjustable voltage variant: 0.7V
  • Capacitor programmable adjustable delay time with CTR pin
  • Capacitor programmable deglitch delay time with CTS pin
  • Open-drain, active-low output
  • Temperature range: –40°C to 125°C
  • Small size: SOT563 (DRL)
  • Wide supply voltage range: 1.9V to 42V
  • VDD, SENSE, and RESET are rated to 42V
  • Low quiescent current: 850nA (typical)
  • High threshold accuracy: 0.5% (typical)
  • Fixed internal threshold voltages: 2.7V to 9.5V
  • Adjustable voltage variant: 0.7V
  • Capacitor programmable adjustable delay time with CTR pin
  • Capacitor programmable deglitch delay time with CTS pin
  • Open-drain, active-low output
  • Temperature range: –40°C to 125°C
  • Small size: SOT563 (DRL)

The TPS3842 is a 42V voltage supervisor with 850nA IDD and 0.5% accuracy, and a fast detection time. This device can be connected directly to 12V / 24V voltage rail for continuous monitoring of undervoltage (UV) conditions. The TPS3842 comes in a small DRL package for size constraint applications. Built-in hysteresis on the SENSE pin prevents false reset signals when monitoring a supply voltage rail. 1%, 5%, and 10% hysteresis voltage options are available to offer design flexibility to support voltage transients.

SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Fixed threshold variants provide accurate low-Iq voltage monitoring. Adjustable threshold variants offer flexible undervoltage threshold setting with external resistors. TPS3842 offers capacitor programable de-glitch on the SENSE with the CTS pin and capacitor programmable reset delay timing with the CTR pin.

The TPS3842 is a 42V voltage supervisor with 850nA IDD and 0.5% accuracy, and a fast detection time. This device can be connected directly to 12V / 24V voltage rail for continuous monitoring of undervoltage (UV) conditions. The TPS3842 comes in a small DRL package for size constraint applications. Built-in hysteresis on the SENSE pin prevents false reset signals when monitoring a supply voltage rail. 1%, 5%, and 10% hysteresis voltage options are available to offer design flexibility to support voltage transients.

SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Fixed threshold variants provide accurate low-Iq voltage monitoring. Adjustable threshold variants offer flexible undervoltage threshold setting with external resistors. TPS3842 offers capacitor programable de-glitch on the SENSE with the CTS pin and capacitor programmable reset delay timing with the CTR pin.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS3760 ACTIVO Supervisor de sobretensión o subtensión de 65 V con sensor, corriente quiescente ultrabaja y retardo Supports up to 42V input in a smaller package and lower IQ
TPS3808 ACTIVO Supervisor de corriente quiescente baja con retardo programable y reinicio manual Supports up to 42V input in a smaller package and lower IQ
NUEVO TPS3808E ACTIVO Supervisor de corriente quiescente ultrabaja de 600 nA con retardo programable y reinicio manual Supports up to 42V input in a smaller package and lower IQ

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 1
Tipo Título Fecha
* Data sheet TPS3842 42V Small Size, 850nA Undervoltage Supervisor With Programmable Delay and De-Glitch datasheet PDF | HTML 01 abr 2024

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.

Herramienta de simulación

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

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Paquete Pasadores Descargar
SOT-5X3 (DRL) 6 Ver opciones

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

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. ​​​​​​​​​​​​​​

Videos