S-1000 SII [Seiko Instruments Inc], S-1000 Datasheet - Page 23

• Manufacturer Part Number: S-1000
• Description: ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
• Manufacturer: SII [Seiko Instruments Inc]

Caution If R
Rev.2.3
*1. R
3. Change of detection voltage
VDD
VSS
If C is not connected, R
or more to prevent oscillation.
In Nch open-drain output products of the S-1000 series, detection voltage can be changed using resistance dividers or
diodes as shown in Figures 29 to 30 . In Figure 29 , hysteresis width also changes.
Caution The above connection diagram and constants do not guarantee correct operation. Perform sufficient
A
should be 75 kΩ or less, and C should be 0.01 µF
may also 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).
Detection
R
_00
Hysterisis
R
A
*1
A
B
evaluation using the actual application to set the constants.
and R
VIN
C
*1
voltagae
width
B
Figure 29
are large, the hysteresis width
+
−
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
=
A
S-1000N
=
should be 800 Ω or less.
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
f2
Figure 30
+(−V
S-1000N
DET
)
(Nch open-drain
output product)
S-1000 Series
OUT
23