參數資料
型號： TOP243G-TL
英文描述： SMPS Controller
中文描述： 開關電源控制器
文件頁數： 16/52頁
文件大?。?/td> 457K
代理商： TOP243G-TL
TOP242-250
16
H
9/02
EXTERNAL CURRENT LIMIT Features Disabled.
FREQUENCY Pin can be tied to SOURCE or
CONTROL Pin).
Product Selector Guide 1
Data Sheets 2
2 M
Application Notes 3
R
LS
V
= 450 VDC
1N4148
Design Tools 5
Quality and Reliability 6
Figure 19. Line-Sensing for Overvoltage Only (Under-Voltage
Disabled). Maximum Duty Cycle will be reduced at
Low Line.
DPA-SwitchDC-DC Seminar 8
LinkSwitch & TinySwitch-IIAC-DC Seminar 9
LIMIT
TOPSwitch-GXAC-DC Seminar 10
Sales Representatives and Distributors 11
Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins
X
F
PI-2617-050100
DC
Input
Voltage
+
-
D
C S
D
S
C
CONTROL
L
C L X S F
D
PI-2618-040501
DC
Input
Voltage
+
-
D
S
C
CONTROL
L
2M
R
LS
V
UV
= I
UV
x R
LS
V
OV
=
I
OV
x
R
LS
For R
LS
= 2 M
V
UV
= 100 VDC
V
OV
=
450 VDC
DC
MAX
@100 VDC = 78%
DC
MAX
@375 VDC = 38%
PI-2510-040501
DC
Input
Voltage
+
-
D
M
S
C
V
UV
= R
LS
x I
UV
For Value Shown
V
UV
= 100 VDC
R
LS
6.2 V
2 M
22 k
CONTROL
PI-2620-040501
DC
Input
Voltage
+
-
D
S
CONTROL
L
30 k
V
OV
= I
OV
x
R
LS
For Values Shown
X
PI-2623-040501
DC
Input
Voltage
+
-
D
S
C
R
IL
For R
IL
= 12 k
I
= 69%
See fig. 55 for other
resistor values (R
IL
)
For R
IL
= 25 k
CONTROL
X
PI-2624-040501
Input
-
C
LS
6 k
R
IL
63% @ 300 VDC
I
LIMIT
=
LIMIT
Figure 16. Three Terminal Operation (LINE-SENSE and
Figure 17. Line-Sensing for Under-Voltage, Overvoltage and
Line Feed Forward.
Figure 18. Line-Sensing for Under-Voltage Only (Overvoltage
Disabled).
Figure 20. Externally Set Current Limit.
Figure 21. Current Limit Reduction with Line Voltage.
相關PDF資料
PDF描述
TOP250F SMPS Controller
TOP250R-TL SMPS Controller
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