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L5991D 数据表(PDF) 5 Page - STMicroelectronics

部件名 L5991D
功能描述  PRIMARY CONTROLLER WITH STANDBY
PDF  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5991D 数据表(HTML) 5 Page - STMicroelectronics

  L5991D Datasheet HTML 1Page - STMicroelectronics L5991D Datasheet HTML 2Page - STMicroelectronics L5991D Datasheet HTML 3Page - STMicroelectronics L5991D Datasheet HTML 4Page - STMicroelectronics L5991D Datasheet HTML 5Page - STMicroelectronics L5991D Datasheet HTML 6Page - STMicroelectronics L5991D Datasheet HTML 7Page - STMicroelectronics L5991D Datasheet HTML 8Page - STMicroelectronics L5991D Datasheet HTML 9Page - STMicroelectronics Next Button
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8
1 01 2
1 41 61 82 0
2 2
2 4
7.0
7.5
8.0
8.5
9.0
Vc c
[V ]
Iq [m A ]
V1 4 = 0 , V 5 = V re f
R t = 4 .5 K o h m ,T j = 2 5
°C
5 00K hz
300K hz
1M hz
100K hz
Figure 3. Quiescent current vs. input voltage.
0
5
10
15
20
25
4.9
4.95
5
5.05
5.1
Iref [mA]
Vref [V]
Vcc=15V
Tj = 25
°C
Figure 6. Reference voltage vs. load current.
-50
-25
0
25
50
75
100
125
150
4.9
4.95
5
5.05
5.1
Tj (
°C)
Vref [V])
Vcc = 15V
Iref = 1mA
Figure 7. Vref vs. junction temperature.
-50
-25
0
25
50
75
100
125
150
4.9
4.95
5
5.05
5.1
Tj (
°C)
Vref [V]
Vcc = 15V
Iref= 20mA
Figure 8. Vref vs. junction temperature.
8
1 0121 4161 8
2 02 2
0
6
12
18
24
30
36
V cc [V]
Iq [m A]
C o = 1nF, T j = 25
°C
DC = 0 %
1M Hz
500KHz
300K Hz
100K Hz
Figure 4. Quiescent current vs. input voltage
and switching frequency.
8
10121416
18
20
22
0
6
12
18
24
30
36
Vcc [V]
Iq [mA]
Co= 1nF, Tj = 25
°C
DC = 100%
1MHz
500KHz
300KHz
100KHz
Figure 5. Quiescent current vs. input voltage
and switching frequency.
L5991 - L5991A
5/23



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