LTC1728E データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LTC1728E
Linear Technology
LTC1728E Datasheet PDF : 18 Pages
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LTC1727/LTC1728
TYPICAL APPLICATION
Triple Supply Monitor with Manual Reset Button
12V (±5%)
VTRIP = 11.2V
(±0.17V)
5V 3.3V
MANUAL
RESET BUTTON
(NORMALLY OPEN)
5
VCC3
1
RST
100nF
LTC1728-5
R3*
R1
4
VCC5
10k
1.07M
100nF
5%
0.1%
3
VCCA
2
GND
R2
105k
1727/28 TA02
0.1%
*OPTIONAL RESISTOR RECOMMENDED
TO EXTEND ESD TOLERANCE
VTRIP
=
VCCA
R2
(R1
+
R2)
( ) R1 = R2
VTRIP
VCCA
–
1
RELATED PARTS
PART NUMBER
LTC690
LTC694-3.3
LTC699
LTC1232
LTC1326
LTC1326-2.5
LTC1443/LTC1444
LTC1445
LTC1536
LTC1540
LTC1726-2.5
LTC1726-5
LTC1985-1.8
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
Micropower Quad Comparators with 1% Reference
Precision Triple Supply Monitor for PCI Applications
Nanopower Comparator with 2% Reference
Micropower Triple Supply Monitor for 2.5V, 3.3V and ADJ
Micropower Triple Supply Monitor for 5V, 3.3V and ADJ
Micropower Triple Supply Monitor for 3.3V, 1.8V and ADJ
COMMENTS
4.65V Threshold
2.9V Threshold
4.65V Threshold
4.37V/4.62V Threshold
4.725V, 3.118V, 1V Thresholds (± 0.75%)
2.363V, 3.118V, 1V Thresholds (±0.75%)
LTC1443 Has 1.182V Reference, LTC1444/LTC1445
Have 1.221V Reference and Adjustable Hysteresis
Meets PCI tFAIL Timing Specifications
1.182V Reference, 300nA Supply Current, 8-Pin MSOP
Adjustable RESET and Watchdog Time Outs
Adjustable RESET and Watchdog Time Outs
Push-Pull RESET Output, SOT-23
18 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95F0o3r5m-7or4e1in7formation www.linear.com/LTC1727
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC1727
17278fd
LT 1016 REV D • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1999
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