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ADM705AN

更新时间： 2024-01-04 12:35:29
品牌 Logo 应用领域
亚德诺 - ADI 电源电路电源管理电路光电二极管监控输入元件
页数 文件大小 规格书
8页 144K
描述
Low Cost uP Supervisory Circuits

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ADM705AN 技术参数

是否无铅： 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：8542.39.00.01风险等级：0.67
其他特性：RESET THRESHOLD VOLTAGE IS 4.65V; MANUAL RESET INPUT可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：1信道数量：2
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)：0.25 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：1 V标称供电电压 (Vsup)：5 V
表面贴装：YES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：30宽度：3.9 mm
Base Number Matches：1

ADM705AN 数据手册

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Low Cost ␮P  
Supervisory Circuits  
a
ADM705–ADM708  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
Guaranteed RESET Valid with VCC = 1 V  
190 ␮A Quiescent Current  
Precision Supply-Voltage Monitor  
4.65 V (ADM705/ADM707)  
4.40 V (ADM706/ADM708)  
WATCHDOG  
TRANSITION  
DETECTOR  
WATCHDOG  
INPUT (WDI)  
WATCHDOG  
TIMER  
WATCHDOG  
OUTPUT (WDO)  
200 ms Reset Pulsewidth  
V
RESET &  
WATCHDOG  
TIMEBASE  
CC  
Debounced TTL/CMOS Manual Reset Input (MR)  
Independent Watchdog Timer—1.6 sec Timeout  
(ADM705/ADM706)  
Active High Reset Output (ADM707/ADM708)  
Voltage Monitor for Power-Fail or Low Battery  
Warning  
250␮A  
MR  
RESET  
GENERATOR  
RESET  
V
CC  
4.65V*  
ADM705/  
ADM706  
Superior Upgrade for MAX705–MAX708  
Also Available in MicroSOIC Packages  
POWER-FAIL  
INPUT (PFI)  
POWER-FAIL  
OUTPUT (PFO)  
1.25V  
APPLICATIONS  
Microprocessor Systems  
Computers  
*VOLTAGE REFERENCE = 4.65V (ADM705), 4.40V (ADM706)  
Controllers  
V
CC  
Intelligent Instruments  
Critical ␮P Monitoring  
Automotive Systems  
Critical ␮P Power Monitoring  
250␮A  
RESET  
MR  
RESET  
GENERATOR  
RESET  
V
CC  
GENERAL DESCRIPTION  
4.65V*  
ADM707/  
ADM708  
The ADM705–ADM708 are low cost µP supervisory circuits.  
They are suitable for monitoring the 5 V power supply/battery  
and can also monitor microprocessor activity.  
POWER-FAIL  
INPUT (PFI)  
POWER-FAIL  
OUTPUT (PFO)  
1.25V  
The ADM705/ADM706 provide the following functions:  
1. Power-On Reset output during power-up, power-down and  
brownout conditions. The RESET output remains opera-  
tional with VCC as low as 1 V.  
*VOLTAGE REFERENCE = 4.65V (ADM707), 4.40V (ADM708)  
Two supply-voltage monitor levels are available. The ADM705/  
ADM707 generate a reset when the supply voltage falls below  
4.65 V, while the ADM706/ADM708 require that the supply  
fall below 4.40 V before a reset is issued.  
2. Independent watchdog timeout, WDO, that goes low if the  
watchdog input has not been toggled within 1.6 seconds.  
3. A 1.25 V threshold detector for power-fail warning, low  
battery detection or to monitor a power supply other than  
5 V.  
All parts are available in 8-lead DIP and SOIC packages. The  
ADM707 and ADM708 are also available in space-saving  
microSOIC packages.  
4. An active low debounced manual reset input (MR).  
The ADM707/ADM708 differ in that:  
1. A watchdog timer function is not available.  
2. An active high reset output in addition to the active low  
output is available.  
REV. B  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 2000  
12345678

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