25W�½Dual�½Output�½Switching�½Power�½Supply
2 5 W D u al O u tpu t with 3.3V output
Mechanical Specification
107
6.35
94
pD
P D -
-
2
2
5
5
0
0
3
3
Unit:mm
1
2
3
CN1
4-3.5�½Dia
Mounting�½Holes
AC�½FUSE
2.5A/250V
1
2
3
4
CN2
61
3.81
53
To�½Chassis�½Grounding
AC�½Input�½Connector�½(CN1)�½:�½Molex�½41791-03�½�½or�½equivalent
Pin�½No.
1
2
3
Assignment
AC/L
No�½Pin
AC/N
Mating�½Housing
Molex�½2139
or�½equivalent
Terminal
Molex�½2478
or�½equivalent
28
DC�½Output�½Connector�½(CN2)�½:�½Molex�½41791-04�½or�½equivalent
Pin�½No.
1
2,3
4
Assignment
+5V
COM
+3.3V
Mating�½Housing
Molex�½2139
or�½equivalent
Terminal
Molex�½2478
or�½equivalent
Block Diagram
RECTIFIERS
&
FILTER
POWER
SWITCH-
ING
PWM
CONTROL
FG
RECTIFIERS
&
FILTER
fosc�½:�½100KHz
+V1
+V2
COM
I/P
EMI
FILTER
DETECTION
CIRCUIT
Output Derating
Static Characteristics
Ta=25
100
5.7
5.1
4.5
3.9
3.3
2.7
2.1
140
120
100
80
80
60
LOAD (%)
+3.3V
40
60
40
20
+5V
+3.3V
20
-10
-10
0
0
10
20
30
40
50
45
60
55
70 (HORIZONTAL)
65 (VERTICAL)
60
80
100
120
140
160
180
200
220
240
260
AMBIENT TEMPERATURE ( )
WWW.AsTRODYNE.COM
300 Myles standish Blvd., Taunton, MA 02780
ph: 1-800-823-8082
Fax: 508-823-8181
File Name:PD-2503-SPEC 2004-12-01
OUTPUT RIPPLE (mVp-p)
+5V
OUTPUT VOLTAGE (V)
ASTRODYNE [ ASTRODYNE CORPORATION ]
