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參數(shù)資料
| 型號： | TC51 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 1レA Voltage Detector with Output Delay |
| 中文描述： | 1レ電壓檢測器的輸出延遲 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 499K |
| 代理商： | TC51 |
TC51
DS21429B-page 4
2002 Microchip Technology Inc.
3.0
DETAILED DESCRIPTION
In normal steady-state operation, when V
IN
> V
DET
-,
the output is high, see Figure 3-1. If and when the
input falls below V
DET
-, the output pulls down (Logic 0)
to V
SS
. Generally, V
OUT
can pull down to within 0.5V of
V
SS
at rated output current and input voltage. (Also see
Section 1.0, Electrical Characteristics).
The output, V
OUT
, stays valid until the input voltage falls
below the minimum operating voltage, V
IN
, of 0.7V.
Below this minimum operating voltage, the output is
undefined. During power-up or anytime V
IN
has fallen
below V
IN
MIN
, V
OUT
will remain undefined until V
IN
rises
above V
IN
MIN
, at which time the output becomes valid.
V
OUT
is maintained in its active low state while
V
IN
< V
IN
< V
DET
+. (V
DET
+
= V
DET
- + V
HYST
). If and
when the input rises above V
DET
+, the output will
assume its inactive state after Delay Time (T
DLY
).
FIGURE 3-1:
TIMING DIAGRAM
V
IN
Detect Voltage V
DET
-
Minimum Operating
Voltage
V
HYST
V
DET
+
Output Voltage
Release
Voltage
Ground Level
Ground Level
Delay Time (T
DLY
)
V
OUT
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