TOP234G-TL Datasheet, PDF (13/36 Pages) Power Integrations, Inc. – nullDesign Flexible, EcoSmart, Integrated Off-line Switcher

Typical Uses of MULTI-FUNCTION (M) Pin (cont.)
TOP232-234
+
Q_R can be an optocoupler
output or can be replaced by
a manual switch.
DC
Input
Voltage
ON/OFF
Q_R
47 kΩ
-
D
M
CONTROL
C
S
Figure 19. Active-on (Fail Safe) Remote ON/OFF.
PI-2519-040401
+
Q_R can be an optocoupler
output or can be replaced
by a manual switch.
DC _ON/OFF
Input
Voltage
Q_R
47 kΩ
D
R_MC
M ^{45 kΩ}
CONTROL
C
-
S
Figure 20. Active-off Remote ON/OFF.
PI-2522-040401
+
DC
Input
Voltage
R_IL
ON/OFF
Q_R
4_-7 kΩ
Q_R can be an optocoupler
output or can be replaced
by a manual switch.
For R_IL = 12 kΩ
I_LIMIT = 67 %
D
M
For R_IL = 25 kΩ
I_LIMIT = 40 %
CONTROL
C
S
PI-2520-040401
Figure 21. Active-on Remote ON/OFF with Externally Set Current
Limit.
+
Q_R can be an optocoupler
output or can be replaced
by a manual switch.
Q_R
DC
ON/OFF
47 kΩ
Input
Voltage
R_MC
D
M
R_IL 12 kΩ
CONTROL
C
24 kΩ
R_MC = 2R_IL
-
S
PI-2521-040401
Figure 22. Active-off Remote ON/OFF with Externally Set Current
Limit.
+
Q_R can be an optocoupler
output or can be replaced
R_LS 2 MΩ
by a manual switch.
Q_R
DC _ON/OFF
Input
47 kΩ
Voltage
D
M
CONTROL
C
For R_LS = 2 MΩ
V_UV = 100 VDC
V_OV = 450 VDC
-
S
PI-2523-040401
Figure 23. Active-off Remote ON/OFF with Line Sense.
13 ^B
7/01