MINT1275
275W Single Output
Medical Series
Fan Output – J301
J301 provides a 12V@1A output to support a system cooling fan.
AC Power Failure/DC OK, Current Shaare and Inhibit Signals – J201
2.
Inhibit
Remote inhibit control of the DC output.
J201 pin 5 open
J201 pin 5 LOW or GND
= ON
= OFF
3.
Current Sharing/Remote Sense
Vo+
Vo-
The outputs of N+1 (N=1,2…5) models can be shared. It is shown in Figure 3, one
load-share controller is required for each model and circuits are identical when
N+ 1 identical models are used.
J302
J303
Terminals J302 and J303 are connected to the Vo+ and Vo-, respectively, of the
first power model. The Vo+ and Vo- correspond to the other models positive and
Power Supply 1
J201 pin 1
J201 pin 3
S+
S-
negative output pins. The Vo+ connects to positive output bus to the load and Vo-
connects the negative output bus to the load.
J201 pin 4
J302
The J201 pin1 and pin3 connects to the S+ and S-, respectively, of the first power
models. The S+ and S- correspond to the other models J201 pin1 and pin3. The
J303
Load -
S+ connects to positive output bus and S- connects to negative output bus.
Remote Sense < 250mV drop compensation:
Power Supply 2
J201 pin 1
J201 pin 3
S+
S-
Load +
The J201 Pin4 connects to current sharing bus that it connects to
other models J201 pin4.
J201 pin 4
J302
J303
Power Supply 3
J201 pin 1
J201 pin 3
S+
S-
Figure 3: Current Share Method
J201 pin 4
Current Sharing Bus
www.slpower.com
MINT1275 REV 1.6, 22-Jan-14
4
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