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DS1231-50IND PDF预览

DS1231-50IND

更新时间： 2024-11-29 13:07:23
品牌 Logo 应用领域
美信 - MAXIM 电源电路电源管理电路光电二极管监控
页数 文件大小 规格书
9页 70K
描述
Power Management Circuit, CMOS, PDIP8,

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中文翻译

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DS1231-50IND 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Contact ManufacturerReach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.31JESD-30 代码：R-PDIP-T8
JESD-609代码：e0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：DIP
封装等效代码：DIP8,.3封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：5 V认证状态：Not Qualified
子类别：Power Management Circuits最大供电电流 (Isup)：2 mA
标称供电电压 (Vsup)：5 V表面贴装：NO
技术：CMOS温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

DS1231-50IND 数据手册

 浏览型号DS1231-50IND的Datasheet PDF文件第2页浏览型号DS1231-50IND的Datasheet PDF文件第3页浏览型号DS1231-50IND的Datasheet PDF文件第4页浏览型号DS1231-50IND的Datasheet PDF文件第5页浏览型号DS1231-50IND的Datasheet PDF文件第6页浏览型号DS1231-50IND的Datasheet PDF文件第7页 
DS1231/S  
DS1231/S  
Power Monitor Chip  
FEATURES  
PIN ASSIGNMENT  
• Warns processor of an impending power failure  
1
2
3
4
8
7
VCC  
NMI  
IN  
MODE  
TOL  
• Provides time for an orderly shutdown  
• Prevents processor from destroying nonvolatile  
memory during power transients  
RST  
RST  
6
5
GND  
• Automatically restarts processor after power is  
restored  
DS1231 8–Pin DIP  
(300 MIL)  
See Mech. Drawings  
Section  
• Suitable for linear or switching power supplies  
• Adjusts to hold time of the power supply  
NC  
16  
15  
NC  
IN  
1
2
3
VCC  
NC  
• Supplies necessary signals for processor interface  
NC  
14  
13  
MODE  
NMI  
NC  
4
5
• Accurate 5% or 10% V monitoring  
CC  
NC  
12  
6
7
TOL  
• Replaces power-up reset circuitry  
• No external capacitors required  
11  
10  
RST  
NC  
NC  
9
GND  
8
RST  
• Optional 16-pin SOIC surface mount package  
DS1231S 16–Pin SOIC  
(300 MIL)  
See Mech. Drawings  
Section  
PIN DESCRIPTION  
IN  
–
–
–
–
–
–
–
–
–
Input  
MODE  
TOL  
GND  
RST  
RST  
NMI  
Selects input pin characteristics  
Selects 5% or 10% V detect  
Ground  
Reset (Active High)  
Reset (Active Low, open drain)  
Non–Maskable Interrupt  
+5V Supply  
CC  
V
CC  
NC  
No Connections  
DESCRIPTION  
The DS1231 Power Monitor Chip uses a precise tem-  
perature-compensatedreference circuit whichprovides  
an orderly shutdown and an automatic restart of a pro-  
cessor-basedsystem. Asignalwarningofanimpending  
power failure is generated well before regulated DC  
voltages go out of specification by monitoring high volt-  
age inputs to the power supply regulators. If line isola-  
tion is required a UL-approved opto-isolator can be di-  
rectly interfaced to the DS1231. The time for processor  
shutdown is directly proportional to the available  
hold-up time of the power supply. Just before the  
hold-up time is exhausted, the Power Monitor uncondi-  
tionally halts the processor to prevent spurious cycles  
by enabling Reset as V falls below a selectable 5 or  
CC  
10 percent threshold. When power returns, the proces-  
sor is held inactive until well after power conditions have  
stabilized, safeguarding any nonvolatile memory in the  
system from inadvertent data changes.  
022698 1/9  
1234567...9

中文翻译

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 		Analog IC

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