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參數(shù)資料
| 型號： | LTC1726IS8-5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer |
| 中文描述： | 3-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 172K |
| 代理商： | LTC1726IS8-5 |
1
LTC1726
Final Electrical Specifications
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Triple Supply Monitor and
μ
P Supervisor with Adjustable
Reset and Watchdog Timer
January 2000
I
Monitors Three Inputs Simultaneously
LTC1726-5: 5V, 3.3V and ADJ
LTC1726-2.5: 2.5V, 3.3V and ADJ
I
±
1.5% Threshold Accuracy Over Temperature
I
Low Supply Current: 16
μ
A Typ
I
Adjustable Reset Timeout
I
Adjustable Watchdog Timeout
I
Active Low Open-Drain Reset Output
I
Power Supply Glitch Immunity
I
Guaranteed RESET for V
CC3
≥
1V or V
CC25
/V
CC5
≥
1V
I
MS8 and SO-8 Packages
The LTC
1726 is a triple supply monitor and microproces-
sor supervisory circuit with adjustable reset and watchdog
functions intended for systems with multiple supply volt-
ages. The part has a common open-drain reset output with
an adjustable delay. The reset and watchdog time-out
periods are both adjustable using external capacitors.
Tight 1.5% accuracy specifications and glitch immunity
ensure reliable reset operation without false triggering.
The RST output is guaranteed to be in the correct state for
V
CC5
/V
CC25
or V
CC3
down to 1V. The LTC1726 may also be
configured to monitor any one or two V
CC
inputs instead
of three, depending on system requirements.
The low (16
μ
A typical) supply current makes the LTC1726
ideal for power-conscious systems.
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Desktop Computers
I
Notebook Computers
I
Intelligent Instruments
I
Portable Battery-Powered Equipment
I
Network Servers
V
CC5
RT
C
RT
47nF
C
47nF
2
1
4
3
6
R1
66.5k
1%
t
RT
= 155ms
t
WT
= 1s
R2
100k
1%
5
8
0.1
μ
F
7
1726 TA01
LTC1726-5
WT
RST
WDI
V
CC3
5V
3.3V
1.8V
(V
TRIP
= 1.665V)
GND
V
CCA
μ
P
RESET
I/O
0.1
μ
F
V
CC25
RT
C
47nF
C
47nF
2
1
4
3
6
t
RT
= 155ms
t
WT
= 1s
R2
100k
1%
5
8
0.1
μ
F
7
1726 TA02
LTC1726-2.5
WT
RST
WDI
V
CC3
2.5V
3.3V
1.8V
(V
TRIP
= 1.665V)
GND
V
CCA
μ
P
RESET
I/O
0.1
μ
F
R1
66.5k
1%
A 3.3V, 5V and 1.8V Monitor
A 3.3V, 2.5V and 1.8V Monitor
FEATURES
DESCRIPTIOU
DESCRIPTIOU
TYPICAL APPLICATIO S
相關PDF資料 |
PDF描述 |
|---|---|
| LTC1726-2.5 | Precision Quad Supply Monitor in 6-Lead SOT-23 |
| LTC1727IS8-5 | Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages |
| LTC1727-5 | Precision Quad Supply Monitor in 6-Lead SOT-23 |
| LTC1727EMS8-2.5 | Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages |
| LTC1727ES8-2.5 | Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages |
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