TPS3619

AKTIV

Batterie-Backup-Überwachung zur RAM-Aufbewahrung

Jetzt bestellen

Datenblatt

document-pdfAcrobat Backup-Battery Supervisors for RAM Retention datasheet (Rev. H) (Englisch)

TPS3619

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

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

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

Rating

Catalog

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

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

VSSOP (DGK)

8

14.7 mm² (3 mm × 4.9 mm)

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 V_DD
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 V_DD
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 (V_DD or V_BAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors V_DD and keeps RESET output active as long as V_DD remains below the threshold voltage (V_IT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after V_DD has risen above V_IT. When the supply voltage drops below V_IT, 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 (V_DD or V_BAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors V_DD and keeps RESET output active as long as V_DD remains below the threshold voltage (V_IT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after V_DD has risen above V_IT. When the supply voltage drops below V_IT, 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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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	Backup-Battery Supervisors for RAM Retention datasheet (Rev. H)		04.12.2007
	Anwendungshinweis	Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A)		17.03.2020
	Auswahlhilfe	Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H)		28.02.2020
	E-book	Voltage Supervisor and Reset ICs: Tips, Tricks and Basics		28.06.2019
	Anwendungshinweis	Using the TPS3619 With MSP430 Microcontrollers (Rev. B)	PDF \| HTML	06.08.2018
	Auswahlhilfe	Power Management Guide 2018 (Rev. R)		25.06.2018
	Technischer Artikel	Charge pumps: An often unconsidered method of DC/DC conversion	PDF \| HTML	17.07.2015

Design und Entwicklung

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
VSSOP (DGK)	8	Ultra Librarian

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TPS3619

Batterie-Backup-Überwachung zur RAM-Aufbewahrung

TPS3619

Produktdetails

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