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ISL705CRHX

更新时间： 2024-11-25 11:12:39
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英特矽尔 - INTERSIL 监控
页数 文件大小 规格书
15页 1069K
描述
Rad-Hard, 5.0V/3.3V μ-Processor Supervisory Circuits

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Rad-Hard, 5.0V/3.3V µ-Processor Supervisory Circuits  
ISL705ARH, ISL705BRH, ISL705CRH, ISL706ARH, ISL706BRH, ISL706CRH  
This family of devices are radiation hardened 5.0V/3.3V  
supervisory circuits that reduce the complexity required to  
Features  
• Electrically Screened to SMD 5962-11213  
• QML Qualified per MIL-PRF-38535 Requirements  
• Radiation Hardness  
monitor supply voltages in microprocessor systems. These  
devices significantly improve accuracy and reliability relative to  
discrete solutions. Each IC provides four key functions.  
1. A reset output during power-up, power-down, and brownout  
conditions.  
- High Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)  
2
- SEL/SEB LET . . . . . . . . . . . . . . . . . . . . . . 86MeV/mg/cm  
TH  
2. An independent watchdog output that goes low if the  
watchdog input has not been toggled within 1.6s.  
• Precision Supply Voltage Monitor  
- 4.65V Threshold in the ISL705ARH/BRH/CRH  
- 3.08V Threshold in the ISL706ARH/BRH/CRH  
• 200ms (Typ) Reset Pulse Width  
3. A precision threshold detector for monitoring a power  
supply other than V  
.
DD  
4. An active-low manual-reset input.  
- Active High, Active Low and Open Drain Options  
Specifications for Rad Hard QML devices are controlled by the  
Defense Supply Center in Columbus (DSCC). The SMD  
numbers listed in the “Ordering Information” table on page 3  
must be used when ordering.  
• Independent Watchdog Timer with 1.6s (Typ) Timeout  
• Precision Threshold Detector  
- 1.25V Threshold in the ISL705ARH/BRH/CRH  
- 0.6V Threshold in the ISL706ARH/BRH/CRH  
Detailed Electrical Specifications for the ISL705ARH,  
ISL705BRH, ISL705CRH, ISL706ARH, ISL706BRH and  
ISL706CRH are contained in SMD 5962-11213. A “hot-link” is  
provided on our website for downloading.  
• Debounced TTL/CMOS Compatible Manual-Reset Input  
• Reset Output Valid at V = 1.2V  
DD  
Applications  
Related Literature  
• ISL705RH Voltage Supervisory Circuit Evaluation Board  
User’s Guide  
• Supervisor for µ-Processors, µ-Controllers, FPGAs and DSPs  
• Critical Power Supply Monitoring  
• ISL706RH Voltage Supervisory Circuit Evaluation Board  
User’s Guide  
• Reliable Replacement of Discrete Solutions  
5V POWER SUPPLY  
1.4  
1.2  
VCC  
1
2
3
4
MR  
VDD  
WDO  
RST  
WDI  
PFO  
8
7
6
5
NMI  
RST  
I/O  
ISL705xRH  
1.0  
0.8  
0.6  
0.4  
0.2  
0
µP  
165k  
GND  
PFI  
ISL706xRH  
20 40  
49.9k  
ISL705ARH  
5V SUPERVISOR APPLICATION WITH OVERVOLTAGE PROTECTION  
FIGURE 1. TYPICAL APPLICATION  
-80 -60 -40 -20  
0
60 80 100 120 140  
TEMPERATURE (°C)  
FIGURE 2. PRECISION THRESHOLD DETECTOR TEMPERATURE  
CHARACTERISTICS CURVE  
September 15, 2011  
FN7662.0  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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