ltc1726-5 Linear Technology Corporation, ltc1726-5 Datasheet - Page 12

• Manufacturer Part Number: ltc1726-5
• Description: Triple Supply Monitor And ?p Supervisor With Adjustable Reset And Watchdog Timer
• Manufacturer: Linear Technology Corporation

RELATED PARTS
TYPICAL APPLICATIO
LTC1726
PART NUMBER
LTC690
LTC694-3.3
LTC699
LTC1232
LTC1326
LTC1326-2.5
LTC1536
LTC1727-5
LTC1727-2.5
LTC1728-5
LTC1728-2.5
LTC1728-1.8
LTC1985-1.8
LTC2900
LTC2901
LTC2902
LTC2903
LTC2908
LTC2910
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
5V Supply Monitor, Watchdog Timer and Battery Backup
3.3V Supply Monitor, Watchdog Timer and Battery Backup
5V Supply Monitor and Watchdog Timer
5V Supply Monitor, Watchdog Timer and Push-Button Reset
Micropower Precision Triple Supply Monitor for 5V, 3.3V and ADJ
Micropower Precision Triple Supply Monitor for 2.5V, 3.3V and ADJ
Precision Triple Supply Monitor for PCI Applications
Micropower Triple Supply Monitor with Individual Outputs
Micropower Triple Supply Monitor with Individual Outputs
Micropower Triple Supply Monitor in 5-Pin SOT-23 Package
Micropower Triple Supply Monitor in 5-Pin SOT-23 Package
Micropower Triple Supply Monitor in 5-Pin SOT-23 Package
Micropower Triple Supply Monitor for 3V, 1.8V and ADJ
Quad Supply Monitor
Quad Supply Monitor with Watchdog Timer
Quad Supply Monitor with Selectable Supply Tolerance
Precision Quad Supply Monitor in SOT-23
Precision Six Supply Monitor
Octal Positive/Negative Voltage Monitor
(NORMALLY OPEN)
RESET BUTTON
●
FAX: [phone]
MANUAL
Triple Supply Monitor with Watchdog Timer and Manual Reset Button
*OPTIONAL RESISTOR RECOMMENDED
TO EXTEND ESD TOLERANCE
U
10k
5%
R3*
V
●
12V (± 5%)
TRIP
(± 0.17V)
www.linear.com
= 11.2V
R1
1.07M
0.1%
R2
105k
0.1%
5V
100nF
3.3V
100nF
V
R1 = R2
TRIP
V
V
V
GND
CC3
CC5
CCA
=
LTC1726-5
V
(
R2
CCA
V
V
TRIP
CCA
(R1 + R2)
COMMENTS
4.65V Threshold
2.9V Threshold
4.65V Threshold
4.37V/4.62V Threshold
4.725V, 3.118V, 1V Thresholds (±0.75%) 5V, 3.3V, ADJ
2.363V, 3.118V, 1V Thresholds (±0.75%) 2.5V, 3.3V, ADJ
Meets PCI t
4.675V, 3.086V, 1V Thresholds (±1.5%) 5V, 3.3V, ADJ
2.338V, 3.086V, 1V Thresholds (±1.5%) 2.5V, 3.3V, ADJ
4.675V, 3.086V, 1V Thresholds (±1.5%) 5V, 3.3V, ADJ
2.338V, 3.086V, 1V Thresholds (±1.5%) 2.5V, 3.3V, ADJ
2.805V, 1.683V, 1V Thresholds (±1.5%) 3V, 1.8V, ADJ
Push-Pull RESET Output, SOT-23
Adjustable Reset Timer
Adjustable Watchdog and Reset Timers
Reset Disable for Margining Applications
Fixed and Adjustable Threshold Combinations
8-Lead ThinSOT and 3mm × 2mm DFN Packages
8 Low Voltage Adjustable Inputs (0.5V)
WDI
RST
– 1
WT
RT
)
47nF
FAIL
t
t
RESET
I/O
47nF
RT
WT
Timing Specifications
µP
= 155ms
= 1s
1726 TA09
© LINEAR TECHNOLOGY CORPORATION 2000
LT/LWI 1106 REV B • PRINTED IN USA
1726fb