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 MULTI-FUNCTION (M) Pin (cont.)
+
Q
R
can be an optocoupler
output or can be replaced by
a manual switch.
+
Q
R
can be an optocoupler
output or can be replaced
by a manual switch.
DC
Input
Voltage
D
Q
R
ON/OFF
47 kΩ
M
CONTROL
DC
ON/OFF
Input
47 kΩ
Voltage
D
C
S
PI-2519-040501
Q
R
R
MC
M
45 kΩ
C
CONTROL
-
-
S
PI-2522-040501
Figure 36. Active-on (Fail Safe) Remote ON/OFF.
Figure 37. Active-off Remote ON/OFF. Maximum Duty Cycle will
be Reduced.
+
Q
R
can be an optocoupler
output or can be replaced
by a manual switch.
For R
IL
= 12 kΩ
I
LIMIT
= 69 %
For R
IL
= 25 kΩ
R
IL
Q
R
ON/OFF
47 kΩ
D
M
CONTROL
+
Q
R
can be an optocoupler
output or can be replaced
by a manual switch.
Q
R
DC
Input
Voltage
I
LIMIT
= 43 %
C
DC
Input
Voltage
ON/OFF
47 kΩ
R
MC
D
R
IL
12 kΩ
S
PI-2521-040501
24 kΩ
R
MC
= 2R
IL
M
CONTROL
C
-
S
PI-2520-040501
-
Figure 38. Active-on Remote ON/OFF with Externally Set
Current Limit.
Figure 39. Active-off Remote ON/OFF with Externally Set
Current Limit.
+
R
LS
2 MΩ
Q
R
can be an optocoupler
output or can be replaced
by a manual switch.
DC
ON/OFF
Input
47 kΩ
Voltage
D
Q
R
For R
LS
= 2 MΩ
M
CONTROL
C
S
V
UV
= 100 VDC
V
OV
= 450 VDC
-
PI-2523-040501
Figure 40. Active-off Remote ON/OFF with LINE-SENSE.
20
E
7/01
August 8, 2000
