ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 12 Vdc / 8.33 A - 30 A Output, 1/8 Brick
Converter
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
Active High
Active Low
-0.3 V
2.4 V
-0.3 V
2.4 V
0 mA
-
-
-
-
-
0.8 V
18 V
0.8 V
18 V
0.75 mA
0RCY-85TxxL. The remote
on/off pin open, Unit off.
0RCY-85Txx0. The remote
on/off pin open, Unit on.
Min
Typ
Max
Notes
Output Trim Equations
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected
between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim pin and the
Vout. Only one of the resistors should be used for any given application.
511
Rtrim
down
�½
10.22
k
delta
Vo=1.5 V-12 V:
Vout
Module
Trim
Rtrim-down
GND
Rtrim
up
�½
(100
delta
)
Vo
5.11
626
10.22
k
1.225
delta
Module
Vout
Rtrim-up
Vo=1.2 V:
Trim
Rtrim
up
�½
(100
delta
)
Vo
5.11
313
10.22
k
0.6125
delta
GND
Notes:
delta
�½
Vo
_
req
Vo
100
%
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=1.202 V for 1.2 V output; Vo=1.503 V for 1.5 V output; Vo=1.804 V for 1.8 V; Vo=2.505 V for
2.5 V output; Vo=3.308 V for 3.3 V output; Vo=5.000 V for 5.0 V; Vo=12.000 V for 12 V output
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
BEL [ BEL FUSE INC. ]
