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DS1819BR-5+T&R PDF预览

DS1819BR-5+T&R

更新时间: 2024-09-16 15:44:47
品牌 Logo 应用领域
美信 - MAXIM 光电二极管
页数 文件大小 规格书
8页 143K
描述
Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO5, LEAD FREE, SOT-23, 5 PIN

DS1819BR-5+T&R 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:SOT-23
包装说明:LSSOP, TSOP5/6,.11,37针数:5
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.66
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码:R-PDSO-G5JESD-609代码:e3
长度:2.9 mm湿度敏感等级:1
信道数量:1功能数量:1
端子数量:5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:LSSOP封装等效代码:TSOP5/6,.11,37
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:1.2/5.5 V
认证状态:Not Qualified座面最大高度:1.45 mm
子类别:Power Management Circuits最大供电电流 (Isup):0.012 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):1.2 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:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:1.625 mm
Base Number Matches:1

DS1819BR-5+T&R 数据手册

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DS1814/DS1819  
5V and 3.3V MicroMonitor  
www.maxim-ic.com  
FEATURES  
PIN ASSIGNMENT  
C Halts and restarts an out-of-control  
microprocessor  
3
2
1
C Holds microprocessor in check during power  
transients  
C Automatically restarts microprocessor after  
power failure  
4
5
C Monitors pushbutton for external override  
C Accurate 5%, 10%, or 20% (3V only)  
microprocessor power monitoring  
C Eliminates the need for discrete components  
C 20% tolerance for use with 3.0V systems  
C Pin- and function-compatible with the  
MAX823/24/25 products  
SOT-23-5 PACKAGE  
See Mech. Drawing  
PIN DESCRIPTION  
DS181xA  
1
RST  
GND  
Active Low Reset Output  
Ground  
C Low cost SOT-23-5 package  
C Industrial temperature range: -40LC to +85LC  
2
3
PBRST  
Pushbutton Reset Input  
4
ST  
VCC  
Strobe Input  
DEVICE  
RST  
WD  
RST  
X
X
PBRST  
5
Power Supply  
DS181xA  
DS181xB  
DS181xC  
X
X
X
DS181xB  
X
X
1
2
3
RST  
Active Low Reset Output  
Ground  
X
X
GND  
x = "DS1814" for 5V devices  
RST  
Active High Reset Output  
x = "DS1819" for 3V devices  
4
ST  
VCC  
Strobe Input  
5
Power Supply  
DS181xC  
1
2
3
RST  
Active Low Reset Output  
Ground  
GND  
RST  
Active High Reset Output  
4
PBRST  
VCC  
Pushbutton Reset Input  
5
Power Supply  
DESCRIPTION  
The DS1814 5-Volt MicroMonitor and the DS1819 3.3V MicroMonitor monitor three vital conditions for  
a microprocessor: power supply, software execution, and external override. First, a precision temperature-  
compensated reference and comparator circuit monitor the status of VCC. When an out-of-tolerance  
condition occurs, an internal power-fail signal is generated which forces the reset(s) to an active state.  
When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for a minimum of  
140ms to allow the power supply and processor to stabilize.  
1 of 8  
122001  

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