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LTC1726IS8-5#PBF

更新时间： 2024-11-12 13:09:43
品牌 Logo 应用领域
凌特 - Linear 光电二极管监控
页数 文件大小 规格书
12页 176K
描述
LTC1726 - Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watchdog Timer; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC1726IS8-5#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：2.86可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：1信道数量：3
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：250
电源：3.3,5 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Power Management Circuits
最大供电电压 (Vsup)：7 V最小供电电压 (Vsup)：1 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

LTC1726IS8-5#PBF 数据手册

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Final Electrical Specifications  
LTC1726  
Triple Supply Monitor and  
µP Supervisor with Adjustable  
Reset and Watchdog Timer  
January 2000  
U
FEATURES  
DESCRIPTIO  
TheLTC®1726 isatriplesupplymonitorandmicroproces-  
sorsupervisorycircuitwithadjustableresetandwatchdog  
functions intended for systems with multiple supply volt-  
ages. Theparthasacommonopen-drainresetoutputwith  
an adjustable delay. The reset and watchdog time-out  
periods are both adjustable using external capacitors.  
■
Monitors Three Inputs Simultaneously  
LTC1726-5: 5V, 3.3V and ADJ  
LTC1726-2.5: 2.5V, 3.3V and ADJ  
■
±1.5% Threshold Accuracy Over Temperature  
■
Low Supply Current: 16µA Typ  
■
Adjustable Reset Timeout  
■
Adjustable Watchdog Timeout  
Tight 1.5% accuracy specifications and glitch immunity  
ensure reliable reset operation without false triggering.  
■
Active Low Open-Drain Reset Output  
■
Power Supply Glitch Immunity  
■
■
The RST output is guaranteed to be in the correct state for  
CC5/VCC25 orVCC3 downto1V. TheLTC1726 mayalsobe  
configured to monitor any one or two VCC inputs instead  
of three, depending on system requirements.  
Guaranteed RESET for VCC3 ≥ 1V or VCC25/VCC5 ≥ 1V  
V
MS8 and SO-8 Packages  
U
DESCRIPTIO  
The low (16µA typical) supply current makes the LTC1726  
ideal for power-conscious systems.  
■
Desktop Computers  
■
Notebook Computers  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
■
Intelligent Instruments  
■
Portable Battery-Powered Equipment  
■
Network Servers  
U
TYPICAL APPLICATIO S  
A 3.3V, 5V and 1.8V Monitor  
A 3.3V, 2.5V and 1.8V Monitor  
1.8V  
TRIP  
1.8V  
TRIP  
(V  
= 1.665V)  
(V  
= 1.665V)  
R1  
66.5k  
1%  
3.3V  
5V  
3.3V  
2.5V  
R1  
66.5k  
1%  
0.1µF  
0.1µF  
0.1µF  
0.1µF  
R2  
100k  
1%  
R2  
100k  
1%  
2
1
3
2
1
3
C
C
RT  
47nF  
RT  
V
V
V
V
V V  
CC25 CC3 CCA  
47nF  
CC5 CC3 CCA  
8
7
6
5
8
7
6
5
RT  
RST  
LTC1726-5  
WDI  
RESET  
µP  
RT  
RST  
WDI  
RESET  
µP  
C
C
WT  
47nF  
WT  
LTC1726-2.5  
47nF  
WT  
I/O  
WT  
I/O  
GND  
4
GND  
4
1726 TA01  
1726 TA02  
t
t
= 155ms  
= 1s  
t
t
= 155ms  
= 1s  
RT  
WT  
RT  
WT  
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 ofits circuits as described herein willnotinfringe on existing patentrights.  
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