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PDF IS-705RH Data sheet ( Hoja de datos )
| Número de pieza | IS-705RH | |
| Descripción | Radiation Hardened Power-Up/Down Microprocessor Reset Circuit | |
| Fabricantes | Intersil Corporation | |
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TM
Data Sheet
December 2001
IS-705RH
FN4703.4
Radiation Hardened Power-Up/Down
Microprocessor Reset Circuit
The Radiation Hardened IS-705RH is
a monolithic device that monitors the
TM
power supply voltage used by
satellite control units and provides a
reset output pulse during power-up and power-down. The
reset threshold is 4.65V (Typ) and the reset pulse width is set
at 200ms (Typ). A watchdog circuit is incorporated for easy
interfacing with microprocessors and controllers. If the
watchdog input has not been toggled within a preset
1.6s (Typ) time period, an output signal is generated, which
can be used as an interupt. The power function input (PFI)
may be used to monitor other voltage levels. The circuit has a
1.25V (Typ) threshold and provides a PFO output when low
voltage is detected. An active-low manual reset input in also
provided for direct control of the reset function.
Constructed with the Intersil UHF2X-CMOS process, these
devices have been specifically designed to provide highly
reliable performance in harsh radiation environments. This
process has been tested for single event latch-up and has
demonstrated an immunity to 90MeV/mg/cm2.
www.DataSheet4U.coSmpecifications for Rad Hard QML devices are controlled
by the Defense Supply Center in Columbus (DSCC). The
SMD numbers listed here must be used when ordering.
Detailed Electrical Specifications for these devices are
contained in SMD 5962-00538. A “hot-link” is provided
on our homepage for downloading.
Pinout
IS9-705RH
FLATPACK
TOP VIEW
MR 1
VCC 2
GND 3
PFI 4
8 WDO
7 RESET
6 WDI
5 PFO
Features
• Electrically Screened to SMD # 5962-00538
• QML Qualified per MIL-PRF-38535 Requirements
• Radiation Hardness
- Total Dose. . . . . . . . . . . . . . . . . . . . . 100 krad(Si) (Max)
- Single Event Latch-up . . . . . . . . . . . . >90MeV/mg/cm2
• Precision 4.65V Voltage Monitor
• Wide Operating Supply Range . . . . . . . . . . . 1.2V to 5.5V
• Low Supply Current . . . . . . . . . . . . . . . . . . . . 420µA (Typ)
• 200ms (Typ) RESET Pulse Width
Applications
• Flight Computers
• Controllers
• Critical Microprocessor Power Monitoring
• Reliable Replacement of Discrete Solutions
Ordering Information
ORDERING NUMBER
INTERNAL
MKT. NUMBER
5962R0053801QXC
IS9-705RH-8
5962R0053801VXC
IS9-705RH-Q
5962R0053801V9A
IS0-705RH-Q
IS9-705RH/Proto
IS9-705RH/Proto
TEMP. RANGE
(oC)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2001. All Rights Reserved
Star*Power™ is a trademark of Intersil Americas Inc.
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