B&B Electronics SD-50 Series - Datasheet - Manual (Page 2)

Mechanical Specification
Derating Curve Static Characteristics(SD-50C-24V)
File Name:SD-50-SPEC 2010-10-18
Case No. 901 Unit:mm
AMBIENT TEMPERATURE ( )
L
O
A
D(
%
)
100
10 0
0
20
40
60
80
-10
-10 20 30 40 50
45 60
55
SD-50A
SD-50B,C
INPUT VOLTAGE (V)
25 30 35 40 45 50 55 60 65 70 72
350 32
300 28
250 24
200 20
150 16
100 12
50 8
O
U
T
P
U
TV
O
LT
A
G
E(
V
)
O
U
T
P
U
TR
IP
P
L
E(
m
V
p
-p
)
Ta=25
(VERTICAL)
( ) HORIZONTAL
Block Diagram
fosc : 83KHz
CIRCUIT
DETECTION
O.L.P.
O.V.P.
EMI
FILTER
RECTIFIERS
&
FILTER
POWER
SWITCHING
FILTER
&
RECTIFIERS
+V
-V
I/P
FG
CONTROL
PWM
Terminal Pin No. Assignment
Pin No. Pin No.
1
2
4
3
5
Assignment Assignment
DC OUTPUT -V
DC OUTPUT +V
FG
DC INPUT V+
DC INPUT V-
4.5
9
152.5
7
150 6.5
1
8
.5
3.5
3.5
78 24
159
22 117
9
5
4
3
2
8
.2
6
5
2-M
3
9
.5
1
2
8
.5
3
.5
1
8 3-M
3
3
8
9
7
8
4
.5
3
.5
50W Single Output DC-DC Converter
S D - 5 0
s e r i e s