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DS1833-5 PDF预览

DS1833-5

更新时间： 2024-11-20 22:50:47
品牌 Logo 应用领域
达拉斯 - DALLAS 电源电路电源管理电路
页数 文件大小 规格书
5页 60K
描述
5V EconoReset

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中文翻译

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DS1833-5 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：TO-92, 3 PINReach Compliance Code：unknown
风险等级：5.71Is 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：O-PBCY-T3JESD-609代码：e0
信道数量：1功能数量：1
端子数量：3最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装等效代码：SIP3,.1,50封装形状：ROUND
封装形式：CYLINDRICAL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)：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：1.27 mm
端子位置：BOTTOM阈值电压标称：+4.63V
Base Number Matches：1

DS1833-5 数据手册

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DS1233  
5V EconoReset  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
ꢀ Automatically restarts microprocessor after  
power failure  
DALLAS  
DS1233  
Econo  
ꢀ Monitors pushbutton for external override  
ꢀ Internal circuitry debounces pushbutton  
switch  
Reset  
ꢀ Maintains reset for 350 ms after VCC returns  
to an in-tolerance condition or pushbutton  
released  
ꢀ Accurate 5%, 10% or 15% microprocessor 5V  
power supply monitoring  
ꢀ Reduces need for discrete components  
ꢀ Precision temperature-compensated voltage  
reference and voltage sensor  
ꢀ Low-cost TO-92 package or surface-mount  
SOT-223 package  
1
4
1 2 3  
1 2 3  
2
3
TO-92 PACKAGE  
See Mech.  
Drawings Section  
SOT-223 PACKAGE  
See Mech.  
Drawings Section  
ꢀ Internal 5kΩ=pull-up resistor  
ꢀ Operating temperature of -40°C to +85°C  
PIN DESCRIPTION  
PIN 1  
GROUND  
PIN 2  
PIN 3  
PIN 4  
RESET  
VCC  
GROUND (SOT-223 ONLY)  
DESCRIPTION  
The DS1233 EconoReset monitors two vital conditions for a microprocessor: power supply and external  
override. A precision temperature compensated reference and comparator circuit are used to monitor the  
status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail  
signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition,  
the reset signal is kept in the active state for approximately 350 ms to allow the power supply and  
processor to stabilize. The second function of the DS1233 is pushbutton reset control. The DS1233  
debounces a pushbutton closure and will generate a 350 ms reset pulse upon release.  
OPERATION - POWER MONITOR  
The DS1233 provides the functions of detecting out-of-tolerance power supply conditions and warning a  
processor-based system of impending power failure. When VCC is detected as out-of-tolerance, as  
defined by the tolerance of the part selected, the RST signal is asserted. On power-up, RST is kept active  
for approximately 350 ms after the power supply has reached the selected tolerance. This allows the  
power supply and microprocessor to stabilize before RST is released.  
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