S-1000 SII [Seiko Instruments Inc], S-1000 Datasheet - Page 13

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

Rev.2.3
1. Basic operation: CMOS output (Active “L”)
Operation
(1) When the power supply voltage (V
(2) When the V
(3) When the V
(4) The V
(5) When the V
*1. Parasiteic diode
Pch transistor is ON to provide V
comparator input voltage is
voltage − V
transistor becomes OFF, and the V
becomes ON, the comparator input voltage is changed to
output is pulled up to the V
when the V
becomes ON to provide V
_00
SS
level appears when the V
DET
DD
DD
DD
DD
. When the V
falls below the minimum operating voltage, the output becomes undefined, or goes to the V
surpasses −V
goes below + V
rises above +V
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
VDD
VSS
DD
DD
DET
DD
R (
level at the output.
.
DET
R
B
DET
, as long as it does not exceed the release voltage +V
A
falls below − V
, the output provides the V
+
+
*1
R
(point B in Figure 15 ), the Nch transistor becomes OFF and the Pch transistor
DD
R
DD
DD
C
SS
V
B
) is higher than the release voltage ( + V
)
rises above the minimum operating voltage. The V
REF
(“H”) at the output. Since the Nch transistor N1 in Figure 14 is OFF, the
+
•
level appears at the output. At this time the Nch transistor N1 in Figure 14
V
R
Seiko Instruments Inc.
DD
C
R
R
R
Figure 14 Operation 1
.
A
B
C
DET
(point A in Figure 15 ), the Nch transistor becomes ON, the Pch
−
+
N1
R
DD
R
B
A
level, as long as the V
•
+
V
R
DD
B
.
Pch
Nch
DET
), the Nch transistor is OFF and the
DD
*1
*1
DET
remains above the detection
.
OUT
SS
level still appears even
S-1000 Series
DD
when the
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