Inicio Gestión de la energía Supervisor & reset ICs

TPS3305

ACTIVO

Supervisor de tensión de procesador doble con temporizador de vigilancia

Detalles del producto

Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 1.68, 2.25, 2.93, 4.55 Features Complimentary output, Manual reset capable, Separate VDD & sense, Timeout watchdog, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 3 Iq (typ) (mA) 0.04 Output driver type/reset output Active-high, Active-low, Push-Pull Time delay (ms) 200 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) 1.6 Operating temperature range (°C) -40 to 85
Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 1.68, 2.25, 2.93, 4.55 Features Complimentary output, Manual reset capable, Separate VDD & sense, Timeout watchdog, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 3 Iq (typ) (mA) 0.04 Output driver type/reset output Active-high, Active-low, Push-Pull Time delay (ms) 200 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) 1.6 Operating temperature range (°C) -40 to 85
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6
  • Dual Supervisory Circuits for DSP- and Processor-Based Systems
  • Power-On Reset Generator with Fixed Delay Time of 200ms; no External Capacitor Needed
  • Watchdog Timer Retriggers the RESET Output at SENSEn ≥ VIT+
  • Temperature-Compensated Voltage Reference
  • Maximum Supply Current of 40µA
  • Supply Voltage Range: 2.7V to 6V
  • Defined RESET Output From VDD ≥ 1.1V
  • MSOP-8 and SO-8 Packages
  • Temperature Range: -40°C to +85°C
  • APPLICATIONS
    • Processor Supply Monitoring
    • Industrial Equipment
    • Automotive Systems
    • Portable/Battery-Powered Equipment
    • Wireless Communication Systems
    • Notebook/Desktop Computers
  • Dual Supervisory Circuits for DSP- and Processor-Based Systems
  • Power-On Reset Generator with Fixed Delay Time of 200ms; no External Capacitor Needed
  • Watchdog Timer Retriggers the RESET Output at SENSEn ≥ VIT+
  • Temperature-Compensated Voltage Reference
  • Maximum Supply Current of 40µA
  • Supply Voltage Range: 2.7V to 6V
  • Defined RESET Output From VDD ≥ 1.1V
  • MSOP-8 and SO-8 Packages
  • Temperature Range: -40°C to +85°C
  • APPLICATIONS
    • Processor Supply Monitoring
    • Industrial Equipment
    • Automotive Systems
    • Portable/Battery-Powered Equipment
    • Wireless Communication Systems
    • Notebook/Desktop Computers

The TPS3305 family is a series of micropower supply voltage supervisors designed for circuit initialization. Its dual monitor topology is well-suited to use in DSP and processor-based systems, which often require two supply voltages, core and I/O.

RESET is asserted when the voltage at either SENSEn pin falls below its threshold voltage, VIT. When both SENSEn pins are again above their respective threshold voltages, RESET is held low for the factory-programmed delay time (200ms typ). RESET is also asserted if the watchdog input (WDI) is not toggled for more than 1.6s typ.

The TPS3305-xx devices are available in either 8-pin MSOP or SO packages, and are specified for operation over a temperature range of -40°C to +85°C.

The TPS3305 family is a series of micropower supply voltage supervisors designed for circuit initialization. Its dual monitor topology is well-suited to use in DSP and processor-based systems, which often require two supply voltages, core and I/O.

RESET is asserted when the voltage at either SENSEn pin falls below its threshold voltage, VIT. When both SENSEn pins are again above their respective threshold voltages, RESET is held low for the factory-programmed delay time (200ms typ). RESET is also asserted if the watchdog input (WDI) is not toggled for more than 1.6s typ.

The TPS3305-xx devices are available in either 8-pin MSOP or SO packages, and are specified for operation over a temperature range of -40°C to +85°C.

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Documentación técnica

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Ver todo 4
Tipo Título Fecha
* Data sheet Dual Processor Supervisors datasheet (Rev. C) 27 mar 2008
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) 28 feb 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 jun 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018

Diseño y desarrollo

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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 (...)
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HVSSOP (DGN) 8 Ver opciones
SOIC (D) 8 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

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