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參數(shù)資料
| 型號： | TC52 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Dual Channel Voltage Detector |
| 中文描述： | 雙通道電壓檢測器 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大小： | 445K |
| 代理商： | TC52 |
2002 Microchip Technology Inc.
DS21430B-page 3
TC52
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
3.0
DETAILED DESCRIPTION
In normal steady-state operation and for either
channel, when V
IN
> V
DET
-, the output is high, see
Figure 3-1. (In the case of the TC52N, this is an open-
drain condition.) 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 voltages. (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
MIN
<
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 (open-drain for TC52N).
FIGURE 3-1:
TIMING DIAGRAM
Pin No.
(5-Pin SOT-23A)
Symbol
Description
1
2
3
4
5
V
OUT1
V
IN
GND
V
IN2
V
OUT2
Detector #1 output.
Supply voltage input, detect voltage 1.
Ground terminal.
Detect voltage 2.
Detector #2 output.
V
INx
Detect Voltage V
DET
–
Minimum Operating
Voltage
V
HYST
V
DET
+
Output Voltage
Release Voltage
or RESET Voltage
Ground Level
Ground Level
V
OUTx
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