s-80857cny-n-g Seiko Instruments Inc., s-80857cny-n-g Datasheet - Page 37
s-80857cny-n-g
Manufacturer Part Number
s-80857cny-n-g
Description
Super-small Package High-precision Voltage Detector
Manufacturer
Seiko Instruments Inc.
Datasheet
1.S-80857CNY-N-G.pdf
(59 pages)
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*1. R
Caution If R
Rev.5.0
(RA≤75 kΩ)
3. Change of Detection Voltage
VSS
VDD
In Nch open-drain output products of the S-808xxC series, detection voltage can be changed using
resistance dividers or diodes as shown in Figures 32 to 33 . In Figure 32 , hysteresis width also changes.
Caution The above connection diagram and constants do not guarantee correct operation. Perform
A
should be 75 kΩ or less to prevent oscillation.
Detection
width may aloso be larger than the
value given by the above equation due
to the through-type current (which
flows slightly in an Nch open-drain
product).
Hysterisis
_00
R
R
A
*1
B
A
sufficient evaluation using the actual application to set the constants.
and R
VIN
voltagae
width
Figure 32
B
+
−
SUPER-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
are large, the hysteresis
=
S-
808xxCN
=
R
R
A
R
A
+
R
B
+
(Nch open-drain
output products)
R
B
R
B
B
•
•
V
−
HYS
V
DET
Seiko Instruments Inc.
OUT
Detection voltage=V
VSS
VDD
V
V
f1
f2
VIN
f1
+V
Figure 33
f2
+(−V
S-
808xxCN
DET
)
S-808xxC Series
(Nch open-drain
output product)
OUT
37
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