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PDF ISL706CRH Data sheet ( Hoja de datos )
| Número de pieza | ISL706CRH | |
| Descripción | 5.0V/3.3V u-Processor Supervisory Circuits | |
| Fabricantes | Intersil | |
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DATASHEET
Radiation Hardened, 5.0V/3.3V µ-Processor
Supervisory Circuits
ISL705AEH, ISL705BEH, ISL705CEH, ISL706AEH, ISL706BEH,
ISL706CEH, ISL705ARH, ISL705BRH, ISL705CRH, ISL706ARH,
ISL706BRH, ISL706CRH
The devices in this family 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.
• 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.
• A precision threshold detector for monitoring a power supply
other than VDD.
• An active-low, manual-reset input.
Applications
• Supervisor for µ-processors, µ-controllers, FPGAs, and DSPs
• Critical power supply monitoring
• Reliable replacement of discrete solutions
Related Literature
• For a full list of related documents, visit our website
- ISL705AEH, ISL705BEH, ISL705CEH, ISL705ARH,
ISL705BRH, ISL705CRH, ISL706AEH, ISL706BEH,
ISL706CEH, ISL706ARH, ISL706BRH, ISL706CRH
product pages
Features
• Electrically screened to SMD 5962-11213
• QML qualified per MIL-PRF-38535 requirements
• Radiation hardness
- High dose rate (EH and RH) . . . . . . . . . . . . . . . 100krad(Si)
- Low dose rate (EH only) . . . . . . . . . . . . . . . .100krad(Si) (*)
- SEL/SEB LETTH. . . . . . . . . . . . . . . . . . . . . 86MeV•cm2/mg
*Product capability established by initial characterization. The
EH version is acceptance tested on a wafer-by-wafer basis to
50krad(Si) at low dose rate.
• Precision supply voltage monitor
- 4.65V threshold in the ISL705AxH/BxH/CxH
- 3.08V threshold in the ISL706AxH/BxH/CxH
• 200ms (typical) reset pulse width
- Active high, active low, and open-drain options
• Independent watchdog timer with 1.6s (typical) timeout
• Precision threshold detector
- 1.25V threshold in the ISL705AxH/BxH/CxH
- 0.6V threshold in the ISL706AxH/BxH/CxH
• Debounced TTL/CMOS compatible manual-reset input
• Reset output valid at VDD = 1.2V
5V POWER SUPPLY
VCC
1 MR
WDO 8
NMI
165k
2 VDD
3 GND
RST 7
WDI 6
RST µP
I/O
4 PFI
PFO 5
49.9k
ISL705AxH
5V SUPERVISOR APPLICATION WITH OVERVOLTAGE PROTECTION
FIGURE 1. TYPICAL APPLICATION
1.4
1.2
1.0 ISL705xxH
0.8
0.6
0.4 ISL706xxH
0.2
0
-80 -60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
FIGURE 2. PRECISION THRESHOLD DETECTOR TEMPERATURE
CHARACTERISTICS CURVE
February 21, 2017
FN7662.5
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2011, 2014, 2015, 2016, 2017. 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.
1 page  
ISL705AEH, ISL705BEH, ISL705CEH, ISL706AEH, ISL706BEH, ISL706CEH,
ISL705ARH, ISL705BRH, ISL705CRH, ISL706ARH, ISL706BRH, ISL706CRH
Timing Diagrams
VDD
VRST
1.2V
MR
>tMR
RST
tRST
tRST
tRST
RST
<tMD
WDI
FIGURE 4. RST, RST, MR TIMING DIAGRAM
VDD
VRST
1.2V
WDI
WDO
<tWD
tRST
<tWD
>tWP
<tWD
no WDI transitions
tWD
RST
FIGURE 5. WATCHDOG TIMING DIAGRAM
tRST
Submit Document Feedback
5
FN7662.5
February 21, 2017
5 Page 
ISL705AEH, ISL705BEH, ISL705CEH, ISL706AEH, ISL706BEH, ISL706CEH,
ISL705ARH, ISL705BRH, ISL705CRH, ISL706ARH, ISL706BRH, ISL706CRH
Post Radiation Characteristics Unless otherwise specified, VDD = 4.75V to 5.5V for the ISL705AEH/BEH/CEH only, VDD = 3.15V to
3.6V for the ISL706AEH/BEH/CEH, only TA = +25°C. This data is typical mean test data post radiation exposure at a rate of <10mrad(Si)/s. This data is
intended to show typical parameter shifts due to low dose rate radiation. These are not limits nor are they guaranteed.
540
530
520
510
500
490
480
470
460
450
0
BIASED
GROUNDED
25 50 75 100 125 150
krad(Si)
4.80
4.75
4.70
4.65
4.60
4.55
4.50
4.45
0
BIASED
GROUNDED
25 50 75 100 125 150
krad(Si)
FIGURE 17. ISL705xEH IDD vs LOW DOSE RATE RADIATION
FIGURE 18. ISL705xEH VRST vs LOW DOSE RATE RADIATION
100
90
80
70
60
50
40
30
20
10
0
0
BIASED
GROUNDED
25 50 75 100 125 150
krad(Si)
FIGURE 19. ISL705xEH VHYS vs LOW DOSE RATE RADIATION
240
220
GROUNDED
200
180
BIASED
160
140
120
0
25 50 75 100 125 150
krad(Si)
FIGURE 20. ISL705xEH tRST vs LOW DOSE RATE RADIATION
2.0
1.8
1.6 GROUNDED
1.4
1.2 BIASED
1.0
0
25 50 75 100 125 150
krad(Si)
FIGURE 21. ISL705xEH tWD vs LOW DOSE RATE RADIATION
40
35
30 GROUNDED
25
20
0
BIASED
25 50 75 100 125 150
krad(Si)
FIGURE 22. ISL705xEH tMD vs LOW DOSE RATE RADIATION
Submit Document Feedback 11
FN7662.5
February 21, 2017
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