A300ERW
Series
Low Cost, Wide Input, 3W
Single & Dual Output
DC/DC Converters
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Key Features:
•
3W Output Power
•
UL Approved
(File E245422)
•
2:1 Input Voltage Range
•
1,500 VDC Isolation
•
Compact DIP Case
•
Single & Dual Outputs
•
Meets EN55022 Class A
•
1.0 MH MTBF
•
Industry Standard Pin-Out
•
LOW COST!
Input
Parameter
Input Start Voltage
Input Filter
Reverse Polarity Input Current
Short Circuit Input Power
Conditions
Min.
Typ.
Max.
5 VDC Input
3.5
4.0
4.5
12 VDC Input
4.5
7.0
9.0
24 VDC Input
8.0
12.0
18.0
48 VDC Input 16.0
24.0
36.0
π
(Pi) Filter (Meets EN55022 Class “A”)
1.0
1,000 1,500
Min.
Typ.
±0.5
±0.5
±0.2
±0.2
45
Max.
±2.0
±2.0
±0.5
±0.5
50
100
15
500
±5.0
±0.02
Units
VDC
A
mW
Units
%
%
%
%
mV P - P
mV P - P
mV rms
%
µSec
%
%/
º
C
Output
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20 MHz) (Note 1)
Ripple & Noise (20 MHz)
Ripple & Noise (20 MHz)
Output Power Protection
Transient Recovery Time (Note 2)
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
Conditions
Dual Output , Balanced Loads
Vin = Min to Max
Iout = 10% to 100%
Over Line, Load & Temp.
120
25% Load Step Change
300
±2.0
±0.01
Continuous (Autorecovery)
Min.
1,500
1,000
Typ.
General
RoHS Compliant
Parameter
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
Conditions
60 Seconds
500 VDC
100 kHz, 1V
Max.
500
300
Units
VDC
MΩ
pF
kHz
Units
º
C
º
C
º
C
%
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Cooling
Humidity
RFI
Conducted EMI
Conditions
Min.
Typ.
-40
+25
-40
-40
Free Air Convection
RH, Non-condensing
Six-Side Shielded Metal Case
EN55022 Class “A”
Ambient
Case
Max.
+71
+90
+125
95
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
T:
(781) 344-8226
F:
(781) 344-8481
E:
sales@micropowerdirect.com
W:
www.micropowerdirect.com
Physical
Case Size
Case Material
Weight
1.25 x 0.80 x 0.40 Inches (31.8 x 20.3 x 10.2 mm)
Metal with Non-Conductive Base (UL94-V0)
0.42 Oz (12g)
Conditions
Min.
Typ.
MIL HDBK 217F, 25
º
C, Gnd Benign
1.0
UL 1950, EN 60950, IEC 60950
UL, cUL; File No. E245422
Conditions
5 VDC Input
12 VDC Input
24 VDC Input
48 VDC Input
1.5 mm From Case For 10 Sec
All Models
Min.
-0.7
-0.7
-0.7
-0.7
Typ.
Max.
Units
MHours
Reliability Specifications
Parameter
MTBF
Safety Standards
Safety Approvals
Absolute Maximum Ratings
Parameter
Input Voltage Surge (1 Sec)
Lead Temperature
Internal Power Dissipation
Max.
11.0
25.0
50.0
100.0
260
2,500
Units
VDC
º
C
mW
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
Model Selection Guide
Model
Number
A301ERW
A302ERW
A303ERW
A304ERW
A305ERW
A311ERW
A312ERW
A313ERW
A314ERW
A315ERW
A321ERW
A322ERW
A323ERW
A324ERW
A325ERW
A331ERW
A332ERW
A333ERW
A334ERW
A335ERW
Voltage (VDC)
Nominal
5
5
5
5
5
12
12
12
12
12
24
24
24
24
24
48
48
48
48
48
Range
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
9.0 - 18.0
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
18.0 - 36.0
36.0 - 75.0
36.0 - 75.0
36.0 - 75.0
36.0 - 75.0
36.0 - 75.0
Input
Current (mA)
Full-Load
857
811
811
811
811
329
313
313
313
313
162
154
154
154
154
81
77
77
77
77
Output
Fuse Rating
Slow-Blow
(mA)
1,500
1,500
1,500
1,500
1,500
700
700
700
700
700
350
350
350
350
350
135
135
135
135
135
Reflected
Efficiency
Current
Ripple Voltage Current
(%, Typ)
(VDC) (mA, Max) (mA, Min)
No-Load Current
(mA, Typ)
40
40
40
40
40
20
20
20
20
20
5
5
5
5
5
3
3
3
3
3
100
100
100
100
100
30
30
30
30
30
15
15
15
15
15
10
10
10
10
10
5.0
12.0
15.0
±12.0
±15.0
5.0
12.0
15.0
±12.0
±15.0
5.0
12.0
15.0
±12.0
±15.0
5.0
12.0
15.0
±12.0
±15.0
600
250
200
±125
±100
600
250
200
±125
±100
600
250
200
±125
±100
600
250
200
±125
±100
60
25
20
±12
±10
60
25
20
±12
±10
60
25
20
±12
±10
60
25
20
±12
±10
70
74
74
74
74
76
80
80
80
80
77
81
81
81
81
77
81
81
81
81
Notes:
1. When measuring output ripple, it is recommended that an external 0.47 µF
ceramic capacitor be placed from the +Vout pin to the -Vout pin for single
output units and from each output to common for dual output units. For
noise sensitive applications, the use of 3.3 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. Operation at no-load will not damage these units. However, they may not
meet all specifications.
4. Dual output units may be connected to provide a 24 VDC or 30 VDC out-
put. To do this, connect the load across the positive (+Vout) and negative
(-Vout) outputs and float the output common.
5. The converter should be connected to a low ac-impedance source. An
input source with a highly inductive impedance may affect the stability of
the converter. In applications where the converter output loading is high
and input power is supplied over long lines, it may be necessary to use a
capacitor on the input to insure start-up.
In this case, it is recommended that a low ESR (ESR <1.0Ω at 100 kHz)
capacitor be mounted close to the converter. For 5V input units a 8.2 µF is
recommended, for 12V input units, a 3.3 µF; and for 24V & 48V units a
1.5 µF.
6. 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.
Derating Curve
Mechanical Dimensions
Pin Connections
Pin
1, 24
Single
+Vin
NC
NC
-Vout
+Vout
-Vin
Dual
+Vin
-Vout
Common
Common
+Vout
-Vin
Capacitive Load
Single Output Dual Output
(µF Max)
(µF Max)
2,000
±1,000
2, 23
3, 22
10, 15
11, 14
12, 13
NC: No Connection
Mechanical Notes:
•
All dimensions are typical in inches (mm)
•
Tolerance x.xx = ±0.01 (±0.25)
•
Leads are gold plated for improved solderability.
MicroPower Direct
www.micropowerdirect.com
•
292 Page Street Ste D Stoughton, MA 02072
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
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