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LTC1726ES8-2.5 PDF预览

LTC1726ES8-2.5

更新时间： 2024-11-11 22:55:51
品牌 Logo 应用领域
凌特 - Linear 电源电路电源管理电路监控
页数 文件大小 规格书
12页 176K
描述
Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer

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LTC1726ES8-2.5 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOIC包装说明：0.150 INCH, PLASTIC, SOP-8
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.1其他特性：RESET THRESHOLD VOLTAGE IS 2.337V
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：R-PDSO-G8JESD-609代码：e0
长度：4.9025 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：70 °C
最低工作温度：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）：255电源：2.5,3.3 V
认证状态：Not Qualified座面最大高度：1.752 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)：2.5 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
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：40
宽度：3.899 mmBase Number Matches：1

LTC1726ES8-2.5 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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