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FM803JP3X Datasheet

  • FM803JP3X

  • 3-Pin レC Supervisor Device

  • 7頁

  • FAIRCHILD

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FM803 3-Pin
碌
C Supervisor Device
October 2002
FM803
3-Pin
碌
C Supervisor Device
General Description
The FM803 is a supervisory device designed to monitor power
supply or other system voltage. FM803 generates a reset pulse
whenever the voltage being monitored is out of tolerance. Once
asserted, the reset pulse is guaranteed to be valid for a minimum
of 140ms (256ms typical ). The reset output of FM803 is of active
low Open-Drain type and has an internal pull-up resistor.
Several threshold voltages are offered to accommodate 5.0V,
3.3V, 3.0V and 2.7V system voltages.
These devices are offered in space saving 3-pin SOT23 and SC70
packages.
Features
I
Automatic reset generation on power-up
I
Minimum 140 ms reset pulse
I
Internal 5k鈩?pull-up resistor
I
Other reset pulse choices available: 32 - 256 ms
I
Operating temperature
-40擄C to + 105擄C (SOT-23)
-40擄C to +85擄C (SC70)
I
Choice of Reset Thresholds: 4.63V, 4.38V, 4.00V, 3.08V,
2.93V, 2.63V
I
SOT23-3 and SC70-3 Packages
Typical Operating Circuit
V
CC
3
FM803
Controller
1
2
/RESET
GND
Connection Diagram
GND 1
FM803 3 V
CC
/RESET 2
SC70-3 & SOT23-3 Packages
漏 2000 Fairchild Semiconductor International
FM803 Rev. C.3
1
www.fairchildsemi.com

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