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FM810LES3 Datasheet

  • FM810LES3

  • Voltage Detector

  • 7頁

  • ETC

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FM809/810 3-Pin
碌
C Supervisor Circuits
June 2001
FM809/810
3-Pin
碌
C Supervisor Circuits
General Description
The FM809/810 are supervisor circuits that monitor power supply
or other system voltages and issue reset pulses (FM809 =
RESET, FM810 = RESET) when a fault condition exists. Several
threshold voltages are offered to accommodate system voltages
of 5.0V, 3.3V, 3.0V and 2.7V with different tolerances.
The low supply current (typically 2碌A) recommends the devices
for portable designs or wherever power saving is primary.
The minimum RESET delay is 140ms, but this may be changed to
a value between 32-256ms. Contact the factory for more informa-
tion.
I
140ms power-on RESET delay (minimum)
I
RESET operation guaranteed to 1.0V
I
Supply current only 2碌A
I
No external components
I
-40擄C to +105擄C Operating Range
I
SOT23-3 package
Applications
I
Microcontrollers and Microprocessors
I
Appliances
I
Power-Supply Monitoring
I
Portable Equipment
I
Automotive Systems
Features
I
V
TH
voltages of 4.63V, 4.38V, 4.00V, 3.08V, 2.93V and
2.63V (contact factory for lower values of V
TH
)
I
RESET (FM809) or RESET (FM810) output
Typical Operating Circuit
V
CC
V
CC
FM809
碌C
RESET
RESET
I/P
GND
GND
Connection Diagram
GND
1
3
RESET (809) or
RESET (810)
2
V
CC
FM809/810
SOT23-3 Package
漏 2001 Fairchild Semiconductor Corporation
FM809/810 Rev. C
1
www.fairchildsemi.com

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