TOP232-234
Typical Uses of MULTI-FUNCTION (M) Pin (cont.)
+
+
QR can be an optocoupler
output or can be replaced
by a manual switch.
QR can be an optocoupler
output or can be replaced by
a manual switch.
QR
47 kΩ
DC
Input
Voltage
DC
Input
Voltage
ON/OFF
RMC
45 kΩ
M
D
S
M
D
CONTROL
CONTROL
C
QR
C
ON/OFF
47 kΩ
-
S
-
PI-2519-040401
PI-2522-040401
Figure 19. Active-on (Fail Safe) Remote ON/OFF.
Figure 20. Active-off Remote ON/OFF.
+
+
QR 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.
For RIL = 12 kΩ
QR
ON/OFF
ILIMIT = 67 %
DC
Input
DC
Input
Voltage
47 kΩ
For RIL = 25 kΩ
Voltage
RMC
24 kΩ
RMC = 2RIL
ILIMIT = 40 %
D
S
M
RIL
QR
D
S
M
CONTROL
CONTROL
C
RIL
C
12 kΩ
ON/OFF
47 kΩ
-
-
PI-2520-040401
PI-2521-040401
Figure 21. Active-on Remote ON/OFF with Externally Set Current
Limit.
Figure 22. Active-off Remote ON/OFF with Externally Set Current
Limit.
QR can be an optocoupler
output or can be replaced
by a manual switch.
+
RLS
2 MΩ
QR
DC
Input
ON/OFF
47 kΩ
For RLS = 2 MΩ
Voltage
D
M
VUV = 100 VDC
VOV = 450 VDC
CONTROL
C
S
-
PI-2523-040401
Figure 23. Active-off Remote ON/OFF with Line Sense.
B
7/01
13
PAM [ POWER ANALOG MICOELECTRONICS ]
