TPS3610U18, TPS3610T50
BATTERY BACKUP SUPERVISORS FOR RAM RETENTION
SLVS327B 鈥?DECEMBER 2000 鈥?REVISED DECEMBER 2002
features
typical applications
D
Supply Current of 40
碌A(chǔ)
(Max)
D
Battery Supply Current of 100 nA (Max)
D
Precision Supply-Voltage Monitor,
D
D
D
D
D
D
D
D
D
D
1.8 V, 5 V; Other 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
Battery-OK Output
Voltage Monitor for Power-Fail or
Low-Battery Monitoring
Manual Switchover to Battery-Backup
Mode
Chip-Enable Gating . . . 3 ns (at V
DD
= 5 V)
Max Propagation Delay
Battery-Freshness Seal
14-pin TSSOP 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
TPS3610
TSSOP (PW) Package
(TOP VIEW)
VOUT
VDD
GND
MSWITCH
CEIN
BATTON
PFI
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VBAT
RESET
WDI
LOWLINE
CEOUT
BATTOK
PFO
typical operating circuit
Power
Supply
0.1
碌F
External
Source
Rx
CEIN
CEOUT
Backup
Battery
Address Bus
Address
Decoder
ACTUAL SIZE
(5,10mm x 6,60mm)
VDD
VBAT
TPS3610
PFI
RESET
WDI
PFO
BATTOK
BATTON
LOWLINE
MSWITCH V
OUT
GND
uC
RESET
I/O
I/O
I/O
Switchover
Capacitor
0.1
碌F
I/O
I/O
VCC
GND
Data Bus
16
CE
CMOS
RAM
VCC
8
CE
CMOS
RAM
VCC
8
Real-
Time
Clock
VCC
Ry
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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