TPS3613-01
ADJUSTABLE BATTERY-BACKUP SUPERVISOR
FOR RAM RETENTION
SLVS340 – DECEMBER 2000
D
D
D
Supply Current of 40 µA (Max)
typical applications
Battery Supply Current of 100 nA (Max)
D
D
D
D
D
D
D
D
D
Fax Machines
Supply Voltage Supervision Range:
– Adjustable
– Other Versions Available on Request
Set-Top Boxes
Advanced Voice Mail Systems
Portable Battery Powered Equipment
Computer Equipment
D
D
Backup-Battery Voltage Can Exceed V
DD
Power-On Reset Generator With Fixed
100-ms Reset Delay Time
Advanced Modems
Automotive Systems
D
Active-High and Active-Low Reset Output
Portable Long-Time Monitoring Equipment
Point of Sale Equipment
D
Chip-Enable Gating . . . 3 ns (at V
Max Propagation Delay
= 5 V)
DD
D
D
10-Pin MSOP Package
DGS PACKAGE
(TOP VIEW)
Temperature Range . . . –40°C to 85°C
description
V
V
BAT
1
2
3
4
5
10
9
OUT
V
RESET
SENSE
RESET
CEOUT
The TPS3613-01 supervisory circuit monitors and
DD
controls processor activity by providing backup-
battery switchover for data retention of CMOS
RAM.
GND
MR
8
7
6
CEIN
ACTUAL SIZE
3,05 mm x 4,98 mm
typical operating circuit
Address
Power
Decoder
Supply
0.1 µF
Monitored
CE
CMOS
RAM
CE
CMOS
RAM
CEIN
CEOUT
Address Bus
uC
Real-
Time
Clock
Backup
Battery
Voltage
V
DD
V
BAT
R
R
x
y
TPS3613
SENSE
V
V
CC
V
CC
CC
8
8
RESET
RESET
Data Bus
16
MR
Switchover
Capacitor
Manual
Reset
V
OUT
V
CC
0.1 µF
GND
GND
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.
Copyright 2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
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