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參數(shù)資料
| 型號： | AN5452 |
| 廠商： | PANASONIC CORP |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | IC for landing correction |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PSFM12 |
| 封裝： | HSIP-12 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 69K |
| 代理商： | AN5452 |
ICs for TV
AN5452
7
I
Usage Notes
1. The order of power supply turning on and off
1) Turning on sequence
1st time pin 2, pin 3 (12 V power supply)
2nd time pin 1
(12 V power supply)
2) Turning off sequence
1st time pin 1
2nd time pin 2, pin 3 (12 V power supply)
(12 V power supply)
In the state that the pin 1 has been established, if pin 2 or pin 3 is decreased to under 5 V, an abnormal current of
50 mA to 300 mA flows to pin 1, so that there is a possibility of breakdown of the IC. The above setting sequence should
be observed.
It is confirmed that the IC operates normally after turning on and off SW 100 times at the interval of 1 second using
the following circuit. Therefore, there will be no problem even if a current of 100 mA or less is allowed to flow to pin
1 for only about 50 ms at turning on and turning off the set power supply. However, we do not give guarantee by
shipping test.
2. Circuit for checking abnormal current
3. The change in output voltage by the V
CC2
and V
CC3
voltage change
If pin 3 (V
CC3
) becomes a voltage of 8 V or less by making resistance value of R3 larger, the upper limit of output
voltage for pin 7 and pin 8 is restricted and then the output becomes as shown in figure 1.
Similarly, if pin 2 (V
CC2
) voltage becomes 8 V or less by making resistance value R2 larger, the output voltage of
pin 10 and pin 11 becomes as shown in figure 2.
A care must be taken in case of using V
CC2
and V
CC3
at a voltage of 8 V or less.
1
V
C
2
V
C
3
V
C
4
5
6
7
8
9
1
1
1
12 V
V
CC1
A
A
A
B
B
SW
B
G
G
G
55
100 mA
1 s
1 s
1
V
C
2
V
C
3
V
C
4
5
6
7
8
9
1
1
1
12 V
V
CC
V
4
V
5
60
60
G
G
G
R
2
R
2
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