Model Selection Guide
Input
Model
Number
C4001ERW
C4002ERW
C4003ERW
C4004ERW
C4011ERW
C4012ERW
C4013ERW
C4014ERW
C4021ERW
C4022ERW
C4023ERW
C4024ERW
Voltage (VDC)
Nominal
12
12
12
12
24
24
24
24
48
48
48
48
Range
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
36.0 - 75.0
36.0 - 75.0
36.0 - 75.0
36.0 - 75.0
Current (mA)
Full-Load No-Load
2,558
3,876
3,876
3,831
1,264
1,873
1,894
1,873
625
926
926
926
20
20
20
20
15
15
15
15
10
10
10
10
Output
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Voltage Current
Current
(VDC) (mA, Max) (mA, Min)
3.3
5.0
12.0
15.0
3.3
5.0
12.0
15.0
3.3
5.0
12.0
15.0
8,000
8,000
3,300
2,666
8,000
8,000
3,300
2,666
8,000
8,000
3,300
2,666
400.0
400.0
165.0
133.0
400.0
400.0
165.0
133.0
400.0
400.0
165.0
133.0
Efficiency
(%, Typ)
86
86
86
87
87
89
88
88
88
90
90
90
Capaci-
tive
Load
(µF Max)
21,000
13,600
2,360
1,510
21,000
13,600
2,360
1,510
21,000
13,600
2,360
1,510
Fuse Rating
Slow-Blow
(mA)
5,000
5,000
5,000
5,000
3,000
3,000
3,000
3,000
1,500
1,500
1,500
1,500
Notes:
1. When measuring output ripple, it is recommended that an external 10.0
µF
ceramic capacitor
be placed from the +Vout pin to the -Vout pin. For noise sensitive applications, the use of
47
µF
capacitors will reduce the output ripple.
2. Transient recovery is measured to within a 1% error band for a load step change of 75% to
100%.
3. The Remote On/Off Control input (Pin 3) is referenced to -Vin (Pin 1). Connection to the
pin should be made through a 1k resistor and diode (1N4148). If it is not used, the
control pin should be left open.
4. Operation at no-load will not damage these units. However, they may not meet all specifica-
tions.
5. The +sense and -sense connections will compensate for up to 5% of Vout. When not used,
they should be connected directly to the appropriate output pin (+sense to +Vout and -sense
to -Vout).
6. To improve performance and stability, a simple external LC filter can be added to the unit
input. Typical component values would be 1.0
µH/10A
& 1,000
µF/25V
for 12V input models;
2.2
µH/10A
& 1,000
µF/50V
for 24V input models; and 74.7
µH/5A
& 1,000
µF/100V
for 48V
input models.
7. It is recommended that a fuse be used on the input of a power supply for protection. See the
table above for the correct rating.
External Trim
A simple external circuit may be used to adjust the converter
output. To adjust the output DOWN, connect a 5%, 3W resistor
between the plus output pin and the Vout trim pin. To adjust the
output UP, connect a 5%, 3W resistor between the minus output
pin and the Vout trim pin. To calculate the correct resistor value
(in k) use:
3.3 V
OUT
UP
Other V
OUT
UP
3.3 V
OUT
R
ADJ
=
R
ADJ
=
(V
OUT
- 1.24) x (2.87)
V
ADJ
- V
OUT
(V
OUT
- 2.5) x (2.87)
V
ADJ
- V
OUT
- 10
- 10
Down R
ADJ
=
(V
ADJ
- 1.24) (V
OUT
- 1.24) x 2.87
- 10
V
OUT
- V
ADJ
(V
ADJ
- 2.5) (V
OUT
- 2.5) x 2.87
- 10
V
OUT
- V
ADJ
Other V
OUT
Down R
ADJ
=
For UP/Down trimming capability, connect a 10 kW potentiometer
between the plus and minus outputs with the wiper arm con-
nected to the Vout trim pin.
Mechanical Dimensions
Derating Curves
Pin Connections
Pin Single
1
+Vin
2
-Vin
4 ON/OFF
5
-Sense
Pin
6
7
8
9
Single
+Sense
+Vout
-Vout
Trim
Mechanical Notes:
•
All dimensions are typical
in inches (mm)
•
Tolerance x.xx = ±0.01 (±0.25)
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292 Page Street Ste D Stoughton, MA 02072
•
TEL: (781) 344-8226
•
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•
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