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MAX818MESA+T

更新时间： 2024-09-18 13:11:07
品牌 Logo 应用领域
美信 - MAXIM 微处理器监控
页数 文件大小 规格书
16页 276K
描述
Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, ROHS COMPLIANT, SOP-8

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MAX818MESA+T 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：15 weeks
风险等级：5.12Is Samacsys：N
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.9 mm湿度敏感等级：1
信道数量：1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）：260电源：5 V
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Power Management Circuits最大供电电流 (Isup)：0.06 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：
标称供电电压 (Vsup)：4.5 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

MAX818MESA+T 数据手册

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19-0486; Rev 3; 12/05  
+5V Microprocessor Supervisory Circuits  
General Description  
____________________________Features  
♦ Precision Supply-Voltage Monitor:  
4.65V (MAX81_L)  
The MAX817/MAX818/MAX819 microprocessor (µP)  
supervisory circuits simplify power-supply monitoring,  
battery control, and chip-enable gating in µP systems  
by reducing the number of components required.  
These devices are designed for use in +5V-powered  
systems. Low supply current (11µA typical) and small  
package size make these devices ideal for portable  
applications. The MAX817/MAX818/MAX819 are specif-  
4.40V (MAX81_M)  
♦ 11µA Quiescent Supply Current  
♦ 200ms Reset Time Delay  
♦ Watchdog Timer with 1.6sec Timeout  
(MAX817/MAX818)  
ically designed to ignore fast transients on V . Other  
CC  
♦ Battery-Backup Power Switching; Battery Voltage  
supervisory functions include active-low reset, backup-  
battery switchover, watchdog input, battery freshness  
seal, and chip-enable gating. The Selector Guide below  
lists the specific functions available from each device.  
Can Exceed V  
CC  
♦ Battery Freshness Seal  
♦ On-Board, 3ns Gating of Chip-Enable Signals  
These devices offer two pretrimmed reset threshold volt-  
ages for ±5ꢀ or ±1±ꢀ power suppliesꢁ :.45V for the L  
versions and :.:±V for the M versions. The MAX817/  
MAX818/MAX819 are available in space-saving µMAX  
packages, as well as 8-pin DIP/SO.  
(MAX818)  
♦ Uncommitted Voltage Monitor for Power-Fail or  
Low-Battery Warning (MAX817/MAX819)  
♦ Manual Reset Input (MAX819)  
______________Ordering Information  
_____________________Selector Guide  
†
PART  
TEMP. RANGE  
±°C to +7±°C  
±°C to +7±°C  
±°C to +7±°C  
PIN-PACKAGE  
8 Plastic DIP  
8 SO  
MAX817 MAX818 MAX819  
FEATURE  
MAX817_CPA  
MAX817_CSA  
MAX817_CUA  
L/M  
✔
L/M  
✔
L/M  
✔
Active-Low Reset  
8 µMAX  
✔
✔
✔
Backup-Battery Switchover  
Power-Fail Comparator  
Watchdog Input  
Ordering Information continued on last page.  
✔
✔
—
✔
✔
†
These parts offer a choice of reset threshold voltage. From the  
table below, select the suffix corresponding to the desired  
threshold and insert it into the blank to complete the part number.  
Devices are available in both leaded and lead-free packaging.  
Specify lead free by adding the + symbol at the end of the part  
number when ordering.  
✔
—
✔
✔
✔
Battery Freshness Seal  
Manual Reset Input  
Chip-Enable Gating  
—
—
—
✔
—
8-DIP/SO/ 8-DIP/SO/ 8-DIP/SO/  
Pin-Package  
µMAX  
µMAX  
µMAX  
SUFFIX  
RESET THRESHOLD (V)  
L
:.45  
:.:±  
Low-Power, Pin-  
Compatible Upgrades forꢁ MAX492A  
MAX49±A/  
MAX7±3/  
MAX7±:  
—
M
_________________Pin Configurations  
________________________Applications  
Battery-Powered Computers and Controllers  
Embedded Controllers  
TOP VIEW  
1
2
3
4
8
7
6
5
BATT  
RESET  
WDI  
OUT  
Intelligent Instruments  
V
CC  
Critical µP Monitoring  
MAX817  
GND  
PFI  
Portable Equipment  
PFO  
Typical Operating Circuit appears at end of data sheet.  
DIP/SO/µMAX  
Pin Configurations continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...16

中文翻译

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MAX818MESA+T 替代型号

型号 品牌 替代类型 描述 数据表
MAX818MESA MAXIM

完全替代

 +5V Microprocessor Supervisory Circuits
MAX818LCSA+ MAXIM

类似代替

 Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, 0.150 INCH, ROHS COMPLIANT

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