Industrial Environment
DC/DC Converters < 40W
IMS6 Series
Functional Description
The IMS 6 DC-DC modules are feedback controlled flyback
converters using current mode PWM (Pulse Width Modula-
tion).
The converter input is protected against transients by
means of a suppressor diode.
The output voltage is monitored by a separate transformer
winding close to the secondary windings and fed back to
the control circuit.
03044
Current limitation is provided by the primary circuit, thus
limiting the total output current (I
o nom
for the single and
I
o1 nom
+
I
o2 nom
for the dual output types).
The close magnetic coupling provided by the planar con-
struction ensures very good regulation and allows for flex-
ible load distribution on dual output types.
03045
Vi+
22
23
14
Vo+
Vi+
22
23
14
Vo+
PWM
PWM
16
Vo–
16
Go
2
2
10
Vi–
3
Vi–
3
11
Vo–
Fig. 1
Block diagram for single output types.
Standard industrial pinout.
03046
Fig. 2
Block diagram for dual output types.
Standard industrial pinout.
03047
Vi+
1
n.c.
2
PWM
13
Vo+
Vi+
1
PWM
15
Vo+
10
12
Vo–
11
Go
Vi–
24
Vi–
24
13
Vo–
Fig. 3
Block diagram for single output types.
Special pinout (Option K).
03048
Fig. 4
Block diagram for dual output types.
Special pinout (Option K).
03049
Vi+
22
23
1
24
3
13
14
Vo+
Vi+
22
23
14
Vo+
15
PWM
15
11
12
Vo–
16
10
n.c.
9
n.c.
1
PWM
9
n.c.
10
24
3
16
13
Go
Vi–
2
Vi–
2
12
Vo–
11
Fig. 5
Block diagram for single output types.
SMD pinout (Option M).
Fig. 6
Block diagram for dual output types.
SMD pinout (Option M).
Edition 1 06.00
POWER-ONE [ POWER-ONE ]
