Inicio Administración de potencia Supervisor & reset ICs Circuitos integrados de restablecimiento y vigilancia
Inicio
Administración de potencia
Supervisor & reset ICs
Circuitos integrados de restablecimiento y vigilancia

TPS3813K33-EP

ACTIVO

Circuitos mejorados de supervisión de procesador con vigilancia de ventana

Haga su pedido ahora
Hoja de datos

TPS3813K33-EP

ACTIVO
Haga su pedido ahora

Detalles del producto

Rating HiRel Enhanced Product Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93 Features Reset time delay, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Open-drain Time delay (ms) 25 Watchdog timer WDI (s) Programmable Operating temperature range (°C) -55 to 125
Rating HiRel Enhanced Product Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93 Features Reset time delay, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Open-drain Time delay (ms) 25 Watchdog timer WDI (s) Programmable Operating temperature range (°C) -55 to 125
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree(1)
  • Window-Watchdog With Programmable Delay and Window Ratio
  • 6-Pin SOT-23 Package
  • Supply Current of 9 µA (Typ)
  • Power On Reset Generator With a Fixed Delay Time of 25 ms
  • Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V
  • Open-Drain Reset Output
  • APPLICATIONS
    • Applications Using DSPs, Microcontrollers, or Microprocessors
    • Safety Critical Systems
    • Automotive Systems
    • Healing Systems

(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree(1)
  • Window-Watchdog With Programmable Delay and Window Ratio
  • 6-Pin SOT-23 Package
  • Supply Current of 9 µA (Typ)
  • Power On Reset Generator With a Fixed Delay Time of 25 ms
  • Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V
  • Open-Drain Reset Output
  • APPLICATIONS
    • Applications Using DSPs, Microcontrollers, or Microprocessors
    • Safety Critical Systems
    • Automotive Systems
    • Healing Systems

(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

The TPS3813 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

During power on, RESET is asserted when supply voltage (VDD) becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td = 25 ms typical, starts after VDD has risen above the threshold voltage (VIT). When the supply voltage drops below the threshold voltage (VIT), the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider.

For safety critical applications the TPS3813 family incorporates a so-called window-watchdog with programmable delay and window ratio. The upper limit of the watchdog time-out can be set by either connecting WDT to GND, VDD, or using an external capacitor. The lower limit and thus the window ratio is set by connecting WDR to GND or VDD. The supervised processor now needs to trigger the TPS3813 within this window not to assert a RESET.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 6-pin SOT-23 package.

The TPS3813 devices are characterized for operation over a temperature range of -55°C to 125°C.

The TPS3813 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

During power on, RESET is asserted when supply voltage (VDD) becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td = 25 ms typical, starts after VDD has risen above the threshold voltage (VIT). When the supply voltage drops below the threshold voltage (VIT), the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider.

For safety critical applications the TPS3813 family incorporates a so-called window-watchdog with programmable delay and window ratio. The upper limit of the watchdog time-out can be set by either connecting WDT to GND, VDD, or using an external capacitor. The lower limit and thus the window ratio is set by connecting WDR to GND or VDD. The supervised processor now needs to trigger the TPS3813 within this window not to assert a RESET.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 6-pin SOT-23 package.

The TPS3813 devices are characterized for operation over a temperature range of -55°C to 125°C.
filter Buscar otro/a Circuitos integrados de restablecimiento y vigilancia
Descargar Ver vídeo con transcripción Video

Consulte productos similares en el inventario de TI.com

Productos con especificaciones similares, ordenados por inventario disponible en TI.com.

Ver ahora

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS35-Q1 ACTIVO Supervisor de precisión con corriente de nanoquiescencia y temporizador de vigilancia de tiempo de e Improved accuracy and lower quiescent current

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 5
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS3813J25-EP, TPS3813L30-EP, TPS3813K33-EP, TPS3813I50-EP datasheet (Rev. A) 24/05/2006
* Informe de radiación y confiabilidad TPS3813K33MDBVREP Reliability Report 5/10/2016
* VID TPS3813K33-EP VID V6206627 21/06/2016
Libro electrónico Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28/06/2019
Nota sobre la aplicación All Window Watchdog Supervisors 9/09/2009

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.

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOT-23 (DBV) 6 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Soporte y capacitación

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

Ver todos los temas del foro en inglés

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 alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos