A300RU
Series
Single & Dual Output, 3W
Ultra-Wide Input Range
DC/DC Converters
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Key Features:
•
3W Output Power
•
4:1 Input Voltage Range
•
1,500 VDC Isolation
•
EN60950 Compliant
•
Meets EN55022 “A”
•
Single & Dual Outputs
•
1.0 MH MTBF
•
Industry Standard Pin-Out
Parameter
Input Start Voltage
Under Voltage Shutdown
Input Filter
Reverse Polarity Input Current
Short Circuit Input Power
Conditions
Min.
Typ.
Max.
24 VDC Input
6.0
7.5
9.0
48 VDC Input 12.0
15.0
18.0
24 VDC Input
8.5
48 VDC Input
16.0
(Pi) Filter (Meets EN55022 Class “A”)
0.5
2,000
Conditions
Dual Output , Balanced Loads
Vin = Min to Max
Iout = 10% to 100%
See Note 1
Over Line, Load & Temp
Vin = Min
25% Load Step Change
110
500
±0.02
Min.
Typ.
±0.5
±0.5
±0.2
±0.3
40
Max.
±2.0
±3.0
±1.0
±1.0
75
150
15
Units
VDC
VDC
A
mW
Units
%
%
%
%
mV P - P
mV P - P
mV rms
%
µSec
%
%/ºC
Output
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20 MHz)
Ripple & Noise (20 MHz)
Ripple & Noise (20 MHz)
Output Power Protection
Transient Recovery Time (Note 2)
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
150
±2.0
±0.01
Continuous (Autorecovery)
Min.
1,500
1,000
Typ.
General
Parameter
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
Conditions
60 Seconds
500 VDC
100 kHz/1V
Max.
Units
VDC
M
pF
kHz
Units
ºC
ºC
ºC
%
380
350
Min.
-40
Typ.
500
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Cooling
Humidity
Physical
Case Size
Case Material
Weight
Conditions
Ambient
Case
Max.
+71
+90
+125
-55
Free Air Convection
RH, Non-condensing
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
1.25 x 0.80 x 0.40 Inches (31.8 x 20.3 x 10.2 mm)
Non-Conductive Black Plastic (UL94V-0)
0.42 Oz (12.2g)
Conditions
MIL HDBK 217F, 25ºC, Gnd Benign
Conditions
24 VDC Input
48 VDC Input
1.5 mm From Case For 10 Sec
All Models
Min.
1.0
Min.
-0.7
-0.7
Typ.
Max.
Units
MHours
Units
VDC
ºC
mW
Reliability Specifications
Parameter
MTBF
Absolute Maximum Ratings
Parameter
Input Voltage Surge (1 Sec)
Lead Temperature
Internal Power Dissipation
Typ.
Max.
50.0
100.0
260
2,500
Caution:
Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
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Model Selection Guide
Model
Number
A301RU
A302RU
A303RU
A304RU
A305RU
A306RU
A311RU
A312RU
A313RU
A314RU
A315RU
A316RU
Voltage (VDC)
Nominal
24
24
24
24
24
24
48
48
48
48
48
48
Range
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
Input
Current (mA)
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Output
Fuse Rating
Reflected
Efficiency
Slow-Blow
Voltage Current
Current
Ripple
(%, Typ)
(mA)
(VDC) (mA, Max) (mA, Min)
Full-Load No-Load Current
(mA, Typ)
138
158
154
152
156
156
68
78
75
74
76
76
20
20
20
20
20
20
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
3.3
5.0
12.0
15.0
±12.0
±15.0
3.3
5.0
12.0
15.0
±12.0
±15.0
750
600
250
200
±125
±100
750
600
250
200
±125
±100
93.0
75.0
32.0
25.0
±16.0
±13.0
93.0
75.0
32.0
25.0
±16.0
±13.0
75
79
81
82
80
80
76
80
83
84
82
82
1,000
1,000
1,000
1,000
1,000
1,000
500
500
500
500
500
500
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 output. 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 <1.0 at 100 kHz) capacitor be mounted
close to the converter. For 24V input units a 4.7 µF is recommended; and for 48V units a 2.2 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
Capacitive Load
Vout
3.3 VDC
5 VDC
12 VDC
15 VDC
Maximum
Load
Capacitance
680
µF
470
µF
330
µF
220
µF
Vout
±12
VDC
±15
VDC
Maximum
Load
Capacitance
150
µF
100
µF
Mechanical Dimensions
Pin Connections
Pin
2, 3
9
11
14
16
22, 23
Single
-Vin
No Pin
NC
+Vout
-Vout
+Vin
Dual
-Vin
Common
-Vout
+Vout
Common
+Vin
NC: No Connection
Mechanical Notes:
MicroPower Direct
We Power Your Success - For Less!
292 Page Street Ste D Stoughton, MA 02072
•
•
All dimensions are typical in inches (mm)
•
Tolerance x.xx = ±0.01 (±0.25)
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
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