ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 12 Vdc / 8.33 A - 30 A Output, 1/8 Brick
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
-0.3 V
2.4 V
-0.3 V
2.4 V
0 mA
-
-
-
-
-
0.8 V
18 V
0RCY-85TxxL. The remote
on/off pin open, Unit off.
Active Low
Active High
0.8 V
0RCY-85Txx0. The remote
on/off pin open, Unit on.
18 V
0.75 mA
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.
Vout
511
Rtrim down
10.22 k
delta
Module
Module
Trim
GND
Rtrim-down
Vo=1.5 V-12 V:
(100 delta)Vo5.11 626
1.225delta
Rtrim up
10.22 k
Vout
Trim
GND
Rtrim-up
Vo=1.2 V:
(100 delta)Vo5.11 313
0.6125delta
Rtrim up
10.22
k
Notes:
Vo _ req Vo
delta
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. ]
