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| 型號： | S-80810CNNB-B8A-T2 |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| 中文描述： | 超小型封裝高精度電壓檢測器 |
| 文件頁數(shù)： | 23/54頁 |
| 文件大?。?/td> | 672K |
| 代理商： | S-80810CNNB-B8A-T2 |
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Rev.3.2
_00
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
S-808xxC Series
Seiko Instruments Inc.
23
V
DD
OUT
(
V
DET
) Max.
(
V
DET
) Min.
Detection voltage
range
Detection voltage
(
+
V
DET
) Max.
(
+
V
DET
) Min.
Release voltage range
V
DD
Release voltage
OUT
Figure 19 Detection Voltage (CMOS Output Products)
Remark
Although the detection voltage and release voltage overlap in the range of 1.514 V to 1.530 V,
+
V
DET
is always larger than
V
DET
.
2. Hysteresis Width (V
HYS
)
Figure 20 Release Voltage (CMOS Output Products)
The hysteresis width is the voltage difference between the detection voltage and the release voltage (The
voltage at point B
The voltage at point A
=
V
HYS
in
Figure 16
). The existence of the hysteresis width
prevents malfunction caused by noise on input signal.
3. Through-type Current
The through-type current refers to the current that flows instantaneously at the time of detection and release
of a voltage detector. The through-type current is large in CMOS output products, small in Nch open-drain
output products.
4. Oscillation
In applications where a resistor is connected to the voltage detector input (
Figure 13
), taking a CMOS active
low product for example, the through-type current which is generated when the output goes from low to high
(release) causes a voltage drop equal to [through-type current]
×
[input resistance] across the resistor. When
the input voltage drops below the detection voltage (
V
DET
) as a result, the output voltage goes to low level.
In this state, the through-type current stops and its resultant voltage drop disappears, and the output goes
from low to high. A through-type current is again generated, a voltage drop appears, and repeating the
process finally induces oscillation.
OUT
VSS
VDD
R
B
R
A
V
IN
S-808xxCL
Figure 21 An Example for Bad Implementation of Input Voltage Divider
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-80870CNNB-B8A-T2 | ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80880CNNB-B8A-T2 | ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80808CLNB-B8A-T2 | ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80837CNNB-B8W-T2 | ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80837CNMC-B8W-T2 | ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-80810CNNB-B8B-T2 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80810CNNB-B8C-T2 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80810CNNB-B8M-T2 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80810CNNB-B8N-T2 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
| S-80810CNNB-B8Q-T2 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR |
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