T0P243G
| Model | T0P243G |
| Description | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| PDF file | Total 48 pages (File size: 769K) |
| Chip Manufacturer | POWERINT |
TOP242-249
Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins (cont.)
+
R
LS
2 MΩ
V
UV
= I
UV
x R
LS
V
OV
= I
OV
x R
LS
For R
LS
= 2 MΩ
V
UV
= 100 VDC
V
OV
= 450 VDC
L
CONTROL
+
Q
R
can be an optocoupler
output or can be replaced by
a manual switch.
DC
Input
Voltage
D
DC
MAX
@100 VDC = 78%
DC
MAX
@375 VDC = 38%
C
DC
Input
Voltage
D
L
300 kΩ
C
CONTROL
S
X
R
IL
12 kΩ
For R
IL
= 12 kΩ
I
LIMIT
= 69%
See fig. 55 for other
resistor values (R
IL
)
to select different I
LIMIT
values
PI-2629-040501
S
Q
R
ON/OFF
47 kΩ
PI-2640-040501
-
-
Figure 29. Active-on Remote ON/OFF.
Figure 28. Line-Sensing and Externally Set Current Limit.
18
E
7/01
August 8, 2000
