Inicio Gestión de la energía Supervisor & reset ICs
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Gestión de la energía
Supervisor & reset ICs

TPS3619

ACTIVO

Supervisor de batería de reserva para retención de RAM

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TPS3619

ACTIVO
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Detalles del producto

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93, 4.55 Features Battery backup switchover, Manual reset capable, PFI/PFO, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 2.4 Iq (typ) (mA) 0.04 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 100 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 5.5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.93, 4.55 Features Battery backup switchover, Manual reset capable, PFI/PFO, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 2.4 Iq (typ) (mA) 0.04 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 100 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 5.5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Supply Current of 40 µA (Max)
  • Battery-Supply Current of 100 nA (Max)
  • Precision Supply Voltage Monitor 3.3 V, 5 V, Other Options on Request
  • Backup-Battery Voltage Can Exceed VDD
  • Power On Reset Generator With Fixed 100-ms Reset Delay Time
  • Voltage Monitor For Power-Fail or Low-Battery Monitoring
  • Battery Freshness Seal (TPS3619)
  • Pin-For-Pin Compatible With MAX819, MAX703, and MAX704
  • 8-Pin MSOP Package
  • Temperature Range –40°C to +85°C
  • APPLICATIONS
    • Fax Machines
    • Set-Top Boxes
    • Advanced Voice Mail Systems
    • Portable Battery-Powered Equipment
    • Computer Equipment
    • Advanced Modems
    • Automotive Systems
    • Portable Long-Time Monitoring Equipment
    • Point-of-Sale Equipment

All other trademarks are the property of their respective owners
  • Supply Current of 40 µA (Max)
  • Battery-Supply Current of 100 nA (Max)
  • Precision Supply Voltage Monitor 3.3 V, 5 V, Other Options on Request
  • Backup-Battery Voltage Can Exceed VDD
  • Power On Reset Generator With Fixed 100-ms Reset Delay Time
  • Voltage Monitor For Power-Fail or Low-Battery Monitoring
  • Battery Freshness Seal (TPS3619)
  • Pin-For-Pin Compatible With MAX819, MAX703, and MAX704
  • 8-Pin MSOP Package
  • Temperature Range –40°C to +85°C
  • APPLICATIONS
    • Fax Machines
    • Set-Top Boxes
    • Advanced Voice Mail Systems
    • Portable Battery-Powered Equipment
    • Computer Equipment
    • Advanced Modems
    • Automotive Systems
    • Portable Long-Time Monitoring Equipment
    • Point-of-Sale Equipment

All other trademarks are the property of their respective owners

The TPS3619 and TPS3620 families of supervisory circuits monitor and control processor activity by providing backup-battery switchover for data retention of CMOS RAM.

During power on, RESET is asserted when the supply voltage (VDD or VBAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET output 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 starts after VDD has risen above VIT. When the supply voltage drops below VIT, the output becomes active (low) again.

The product spectrum is designed for supply voltages of 3.3 V and 5 V. The TPS3619 and TPS3620 are available in an 8-pin MSOP package and are characterized for operation over a temperature range of
–40°C to +85°C.

The TPS3619 and TPS3620 families of supervisory circuits monitor and control processor activity by providing backup-battery switchover for data retention of CMOS RAM.

During power on, RESET is asserted when the supply voltage (VDD or VBAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET output 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 starts after VDD has risen above VIT. When the supply voltage drops below VIT, the output becomes active (low) again.

The product spectrum is designed for supply voltages of 3.3 V and 5 V. The TPS3619 and TPS3620 are available in an 8-pin MSOP package and are characterized for operation over a temperature range of
–40°C to +85°C.
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Documentación técnica

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* Data sheet Backup-Battery Supervisors for RAM Retention datasheet (Rev. H) 04 dic 2007
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 17 mar 2020
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
Application note Using the TPS3619 With MSP430 Microcontrollers (Rev. B) PDF | HTML 06 ago 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Technical article Charge pumps: An often unconsidered method of DC/DC conversion PDF | HTML 17 jul 2015

Diseño y desarrollo

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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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Pedidos y calidad

Información incluida:
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  • 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
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  • Lugar de fabricación
  • Lugar de ensamblaje

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