S-801 Datasheet, PDF (17/33 Pages) Seiko Instruments Inc – ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR WITH DELAY CIRCUIT (INTERNAL DELAY TIME SETTING)

ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR WITH DELAY CIRCUIT (INTERNAL DELAY TIME SETTING)
Rev.3.3_00
S-801 Series
„ Technical Terms
1. Detection Voltage (–V_DET), Release Voltage (+V_DET)
The detection voltage (–V_DET) is a voltage at which the output turns to low. The detection voltage varies
slightly among products of the same specification. The variation of detection voltage between the
specified minimum (–V_DET) Min. and the maximum (–V_DET) Max. is called the detection voltage range
(Refer to Figure 14).
e.g. For the S-80122AN, the detection voltage lies in the range of 2.156 ≤ (–V_DET) ≤ 2.244.
This means that some S-80122ANs have 2.156 V for –V_DET and some have 2.244 V.
The release voltage (+V_DET) is a voltage at which the output turns to high. The release voltage varies
slightly among products of the same specification. The variation of release voltages between the
specified minimum (+V_DET) Min. and the maximum (+V_DET) Max. is called the release voltage range
(Refer to Figure 15).
e.g. For the S-80122AN, the release voltage lies in the range of 2.186 ≤ (+V_DET) ≤ 2.344.
This means that some S-80122ANs have 2.186 V for +V_DET and some have 2.344 V.
V_DD
(−V_DET) Max.
(−V_DET) Min.
Detection voltage
Detection voltage
range
Release voltage
(+V_DET) Max.
(+V_DET) Min.
V_DD
Release voltage
range
OUT
OUT
Delay time
Figure 14 Detection Voltage
Figure 15 Release Voltage
Remark Although the detection voltage and release voltage overlap in the range of 2.186 V to 2.244 V,
+V_DET is always larger than –V_DET.
Seiko Instruments Inc.
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