TPS3600D20, TPS3600D25, TPS3600D33, TPS3600D50
BATTERY-BACKUP SUPERVISORS FOR LOW-POWER PROCESSORS
SLVS336A – DECEMBER 2000 – REVISED APRIL 2001
features
typical applications
Supply Current of 40 µA (Max)
Precision Supply Voltage Monitor
Fax Machines
Set-Top Boxes
– 2.0 V, 2.5 V, 3.3 V, 5.0 V
– Other Versions on Request
Advanced Voice Mail Systems
Portable Battery Powered Equipment
Computer Equipment
Watchdog Timer With 800-ms Time-Out
Backup-Battery Voltage Can Exceed V
DD
Advanced Modems
Power-On Reset Generator With Fixed
100-ms Reset Delay Time
Automotive Systems
Portable Long-Time Monitoring Equipment
Point of Sale Equipment
Battery OK Output
Voltage Monitor for Power-Fail or
Low-Battery Monitoring
TSSOP (PW) Package
(TOP VIEW)
Manual Switchover to Battery-Backup
Mode
V
1
2
3
4
5
6
7
14
13
12
11
10
9
V
BAT
RESET
OUT
Chip-Enable Gating –3 ns (at V
Max. Propagation Delay
= 5 V)
V
DD
DD
GND
MSWITCH
CEIN
WDI
MR
CEOUT
BATTOK
PFO
Manual Reset
BATTON
PFI
8
Battery Freshness Seal
14-Pin TSSOP Package
Temperature Range . . . –40°C to 85°C
ACTUAL SIZE
(5,10mm x 6,60mm)
typical operating circuit
Address
Power
Decoder
Supply
0.1 µF
External
Source
CE
CMOS
RAM
CE
CMOS
RAM
CEIN
CEOUT
Address Bus
uC
Real-
Time
Clock
Backup
Battery
V
DD
V
BAT
R
R
x
y
TPS3600
V
CC
V
CC
V
CC
PFI
8
8
RESET
I/O
RESET
WDI
Data Bus
16
I/O
I/O
I/O
PFO
BATTOK
BATTON
MR
Switchover
Capacitor
Manual
Reset
MSWITCH
GND
V
OUT
V
CC
0.1 µF
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 2001, 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.
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