Datasheet

300W Railway Single Output DC-DC Converter
R SD-300
s eries
File Name:RSD-300-SPEC 2014-05-07
Input Terminal Pin No. Assignment : Output Terminal Pin No. Assignment :
(For 12V, 24V, 48V) (For 5V)
Pin No.
Pin No. Pin No.
1
1 1,2
2
2 3,4
3
Assignment
Assignment Assignment
DC INPUT V+
DC OUTPUT -V DC OUTPUT -V
DC INPUT V-
DC OUTPUT +V DC OUTPUT +V
O/P
I/P
1
2
3
4-R2.1
4
208
216
1
2
LED
4
208
15max.
15max.
Input Fuse
There are one or two fuses connected in series to the positive input line, which are used to protect against abnormal surge. Fuse specifications of each model are shown
as below.
Type
B
C
E
D
F
Fuse Type
Fast
Time-Lag
Time-Lag
Time-Lag
Time-Lag
Reference and Rating
Littelfuse 257, 30A, 32V
Conquer UDA-A, 16A, 250V
Conquer UDA-A, 20A, 250V
Conquer UDA-A, 8A, 250V
Conquer UDA-A, 10A, 250V
Mechanical Specification
Case No.205A Unit:mm
fosc : 130KHz
Block Diagram
CIRCUIT
DET ECTION
O.V.P.
EMI
FILTER
POWER
SWITC HING
FILTER
&
REC TIFIERS
+V
-V
I/P
FG
CO NTROL
PWM
FG
O.L.P.
O.T.P.
1
2
3
4