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參數(shù)資料
| 型號： | MM1548 |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Secondary Control for Energy-Saving AC Adaptor Monolithic IC |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | SOT-26A, 6 PIN |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 132K |
| 代理商： | MM1548 |
MITSUMI
Secondary Control for Energy-Saving AC Adaptor MM1548
5.1V
4.9V
V
CC
OUT
0V
0mA
ON
OFF
5.1V
4.9V
3.5V
V
CC
OUT
0V
0mA
ON
OFF
V
CC
, OUT PIN
(secondary side output)
1
PO1 current
(load det. + constant
voltage control output)
3
Primary side switching
4
2
Normal mode
Normal mode
Energy saving mode
Energy saving mode
Normal mode
Constant voltage control
Normal mode [Io>115mV / R
L
S]
Energy saving mode [Io<115mV / R
L
S]
2V
OUT
0V
0mA
ON
114.4mV
0mV
200mV
OFF
2V
OUT
V
CC
0V
0mA
ON
0mV
34mV
over 0.6V
OFF
V
CC
, OUT PIN
(secondary side output)
1
PO1 current
(load det. + constant
voltage control output)
3
Primary side switching
4
CS terminal
(constant current
control input)
5
2
Constant current control
Normal control [V
CC
>2.0V]
Drop control [V
CC
<2.0V]
AC input
output
Delay circuit
Switching
interruption
control
Switching
circuit
Smoothing
circuit
MM1548
PO1 GND CS
+
–
Signal detection
circuit
Photocoupler
R
L
S
V
CC
CNT OUT
RCS
4
1
2
3
5
Rectifying
circuit
Timing Chart
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