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ISL735BEH

更新时间： 2024-11-19 14:57:19
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
23页 984K
描述
Rad-Hard, 5.0V/3.3V Microprocessor Supervisory Circuits

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ISL735BEH 数据手册

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DATASHEET  
ISL705xRH, ISL705xEH, ISL706xRH, ISL706xEH, ISL735xEH, ISL736xEH  
Radiation Hardened, 5.0V/3.3V µ-Processor Supervisory Circuits  
FN7662  
Rev.6.01  
Mar 2, 2022  
The devices in this family (ISL705AEH, ISL705BEH,  
Features  
ISL705CEH, ISL705ARH, ISL705BRH, ISL705CRH,  
• Electrically screened to SMD 5962-11213  
ISL706AEH, ISL706BEH, ISL706CEH, ISL706ARH, ISL706BRH,  
ISL706CRH, ISL735AEH, ISL735BEH, ISL735CEH, ISL736AEH,  
ISL736BEH, ISL736CEH) are radiation hardened 5.0V/3.3V  
supervisory circuits that reduce the complexity required to  
monitor supply voltages in microprocessor systems. These  
devices significantly improve accuracy and reliability relative to  
discrete solutions. Each IC provides four key functions.  
• QML qualified per MIL-PRF-38535 requirements  
• Radiation acceptance testing - ISL705xRH, ISL706xRH  
- High dose rate . . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)  
• Radiation acceptance testing - ISL705xEH, ISL706xEH  
- High dose rate . . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)  
- Low dose rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . .50krad(Si)  
• Radiation acceptance testing - ISL735xEH, ISL736xEH  
- Low dose rate (EH) . . . . . . . . . . . . . . . . . . . . . . . .50krad(Si)  
• A reset output during power-up, power-down, and brownout  
conditions.  
• An independent watchdog output that goes low if the  
watchdog input has not been toggled within 1.6s.  
• SEE hardness (see SEE report for details)  
2/  
- SEL/SEB LET . . . . . . . . . . . . . . . . . . . . . 86MeV•cm mg  
TH  
• A precision threshold detector for monitoring a power supply  
other than V  
.
DD  
• Precision supply voltage monitor  
• An active-low, manual-reset input.  
- 4.65V threshold in the ISL7x5AxH/BxH/CxH  
- 3.08V threshold in the ISL7x6AxH/BxH/CxH  
Applications  
• Supervisor for µ-processors, µ-controllers, FPGAs, and DSPs  
• 200ms (typical) reset pulse width  
- Active high, active low, and open-drain options  
• Critical power supply monitoring  
• Independent watchdog timer with 1.6s (typical) timeout  
• Reliable replacement of discrete solutions  
• Precision threshold detector  
- 1.25V threshold in the ISL7x5AxH/BxH/CxH  
- 0.6V threshold in the ISL7x6AxH/BxH/CxH  
• Debounced TTL/CMOS compatible manual-reset input  
• Reset output valid at V = 1.2V  
DD  
1.4  
1.2  
5V POWER SUPPLY  
ISL7x5xxH  
ISL7x6xxH  
1.0  
0.8  
0.6  
0.4  
0.2  
0
VCC  
1
2
3
4
MR  
VDD  
GND  
PFI  
WDO  
RST  
WDI  
PFO  
8
7
6
5
NMI  
RST  
I/O  
µP  
165k  
49.9k  
  
ISL7X5AxH  
-80 -60 -40 -20  
0
20  
40 60 80 100 120 140  
TEMPERATURE (°C)  
5V SUPERVISOR APPLICATION WITH OVERVOLTAGE PROTECTION  
FIGURE 1. TYPICAL APPLICATION  
FIGURE 2. PRECISION THRESHOLD DETECTOR TEMPERATURE  
CHARACTERISTICS CURVE  
FN7662 Rev.6.01  
Mar 2, 2022  
Page 1 of 22  
© 2011-2022 Renesas Electronics  
1234567...23

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