TPS3606 33
BATTERY BACKUP SUPERVISOR FOR LOW POWER PROCESSORS
SLVS335B 鈥?DECEMBER 2000 鈥?REVISED DECEMBER 2002
features
typical applications
D
Supply Current of 40
碌A
(Max)
D
Precision 3.3-V Supply Voltage Monitor
D
D
D
D
D
D
D
D
D
Other Voltage Options on Request
Watchdog Timer With 800-ms Time-Out
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
Manual Switchover to Battery-Backup
Mode
Manual Reset
Battery Freshness Seal
10-Pin MSOP Package
Temperature Range . . . 鈥?0擄C to 85擄C
D
D
D
D
D
D
D
D
D
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
MSOP (DGS) Package
(TOP VIEW)
VOUT
VDD
GND
MSWITCH
PFI
VBAT
RESET
WDI
MR
PFO
description
The TPS3606-33 supervisory circuit monitors and
controls the processor activity. In case of power-
fail or brownout conditions, the backup-battery
switchover function of the TPS3606-33 allows a
low-power processor and its peripherals to run
from the installed backup battery without
asserting a reset beforehand.
ACTUAL SIZE
3,05 mm x 4,98 mm
typical operating circuit
Power
Supply
0.1
碌F
External
Source
Rx
Backup
Battery
uC
RESET
I/O
I/O
VDD
VBAT
TPS3606
PFI
RESET
WDI
PFO
MR
Ry
Manual
Reset
MSWITCH V
OUT
GND
Switchover
Capacitor
0.1
碌F
VCC
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.
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.
Copyright
錚?/div>
2002, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
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