參數(shù)資料
型號(hào): L5971
廠商: 意法半導(dǎo)體
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Isolated Flyback Switching Regulator with 9V Output
中文描述: 隔離反激式開(kāi)關(guān)穩(wěn)壓9V輸出
文件頁(yè)數(shù): 7/11頁(yè)
文件大?。?/td> 96K
代理商: L5971
0
5
10
15
20
25
V
O
(V)
82
84
86
88
90
92
94
96
η
(%)
D98IN948
100KHz
V
CC
=20V
I
O
=1.5A
200KHz
Figure11. Efficiencyvs output voltage.
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4 I
O
(A)
0.0
0.1
0.2
0.3
0.4
0.5
V
(V)
T=25
°
C
Tj=125
°
C
D97IN736
Tj=-25
°
C
Figure 10. Dropout voltage between pin 5
and 4.
-50
0
50
100
Tj(
°
C)
90
95
100
105
fsw
(KHz)
D97IN785
Figure9. Switchingfrequency vs. junction
temperature.
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4 I
O
(A)
75
80
85
90
η
(%)
D98IN950
V
CC
=8V
fsw=200KHz
V
O
=3.36V
V
CC
=12V
V
CC
=18V
Figure13. Efficiencyvs output current.
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4 I
O
(A)
75
80
85
90
η
(%)
D98IN949
V
CC
=8V
fsw=200KHz
V
O
=5.1V
V
CC
=12V
V
CC
=18V
Figure 12. Efficiency vs. output current.
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4 Io(A)
60
65
70
75
80
85
90
η
(%)
Vcc=8V
Vcc=12V
Vcc=18V
Fsw=200KHz
Vo=2.5V
D98IN941
Figure 14. Efficiency vs. output current.
L5971
7/11
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