BACKUP-BATTERY SUPERVISORS. TPS3620-50-EP Datasheet

TPS3620-50-EP Datasheet PDF, Equivalent


Part Number

TPS3620-50-EP

Description

BACKUP-BATTERY SUPERVISORS

Manufacture

etcTI

Total Page 19 Pages
PDF Download
Download TPS3620-50-EP Datasheet PDF


TPS3620-50-EP Datasheet
TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP
www.ti.com
SGLS350C – JULY 2006 – REVISED SEPTEMBER 2010
BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION
Check for Samples: TPS3619-33-EP, TPS3619-50-EP, TPS3620-33-EP, TPS3620-50-EP
FEATURES
1
• Supply Current of 40 mA (Max)
• Battery-Supply Current of 100 nA (Max)
• Precision Supply-Voltage Monitor 3.3 V, 5 V,
and 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-to-Pin Compatible With MAX819, MAX703,
and MAX704
• 8-Pin Mini Small-Outline Package (MSOP)
Package
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Military (–55°C/125°C)
Temperature Range(1)
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
(1) Additional temperature ranges available - contact factory
DGK PACKAGE
(TOP VIEW)
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
DESCRIPTION
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 –55°C to 125°C.
VOUT
VDD
GND
PFI
1
2
3
4
8 VBAT
7 RESET
ACTUAL SIZE
6 MR
3,05 mm x 4,98 mm
5 PFO
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2010, Texas Instruments Incorporated

TPS3620-50-EP Datasheet
TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP
SGLS350C – JULY 2006 – REVISED SEPTEMBER 2010
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
Power
Supply
0.1 µF
External
Source
TYPICAL OPERATING CIRCUIT
TPS3619
TPS3620
VDD
VBAT
Backup
Battery
Microcontroller
or
Microprocessor
Rx
Ry
Manual
Reset
RESET
PFI PFO
MR
VOUT
GND
RESET
Switchover
Capacitor
0.1 µF
I/O
VCC
GND
TA
–55°C to 125°C
PRODUCT
TPS3619-33
TPS3619-50
TPS3620-33
TPS3620-50
PACKAGE INFORMATION(1)
PACKAGE
MARKING
BZP
TBD
ORDERABLE PART NUMBER
TPS3619-33MDGKEP (2)
TPS3619-33MDGKREP
TPS3619-50MDGK (2)
TPS3619-50MDGKREP (2)
BTY
TBD
TPS3620-33MDGKTEP
TPS3620-33MDGKREP
TPS3620-50MDGKTEP (2)
TPS3620-50MDGKREP (2)
TRANSPORT MEDIA,
QUANTITY
Tube, 80
Tape and reel, 2500
Tube, 80
Tape and reel, 2500
Tape and reel, 250
Tape and reel, 2500
Tape and reel, 250
Tape and reel, 2500
(1) For the most current specifications and package information, see the Package Option Addendum located at the end of this data sheet or
see the TI web site at www.ti.com.
(2) Product Preview. Parameters in electrical characteristics are subject to change.
Standard and Application-Specific Versions
TPS361 9 33 M DGK R EP
Designator
Reel
Package
Temperature Range
Nominal Supply Voltage
Functionality
Family
DEVICE NAME
TPS3619-33 DGK
TPS3619-50 DGK
TPS3620-33 DGK
TPS3620-50 DGK
NOMINAL VOLTAGE(1), VNOM
3.3 V
5V
3.3 V
5V
(1) For other threshold voltage versions, contact the local TI sales
office for availability and lead time.
2 Submit Documentation Feedback
Copyright © 2006–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS3619-33-EP TPS3619-50-EP TPS3620-33-EP TPS3620-50-EP


Features Datasheet pdf TPS3619-33-EP, TPS3619-50-EP TPS3620-33- EP, TPS3620-50-EP www.ti.com SGLS350C – JULY 2006 – REVISED SEPTEMBER 20 10 BACKUP-BATTERY SUPERVISORS FOR RAM R ETENTION Check for Samples: TPS3619-33- EP, TPS3619-50-EP, TPS3620-33-EP, TPS36 20-50-EP FEATURES 1 • Supply Current of 40 mA (Max) • Battery-Supply Curr ent of 100 nA (Max) • Precision Suppl y-Voltage Monitor 3.3 V, 5 V, and Other Options on Request • Backup-Battery Voltage Can Exceed VDD • Power-On Res et Generator with Fixed 100-ms Reset De lay Time • Voltage Monitor for Power- Fail or Low-Battery Monitoring • Batt ery Freshness Seal (TPS3619) • Pin-to -Pin Compatible With MAX819, MAX703, an d MAX704 • 8-Pin Mini Small-Outline P ackage (MSOP) Package SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS Controlled Baseline • One Assembly/ Test Site • One Fabrication Site • Available in Military (–55°C/125°C) Temperature Range(1) • Extended Prod uct Life Cycle • Extended Product-Change Notification • Product Traceability (1) Additional tempera.
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