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
•
-40ºC to +85ºC Temp Range
•
Compact DIP Case
•
Single & Dual Outputs
•
1.0 MH MTBF
•
Industry Standard Pin-Out
Parameter
Input Voltage Range (See Note 1)
Input Filter
Short Circuit Input Power
Conditions
24 VDC Input
48 VDC Input
Min.
9.0
36.0
Typ.
24.0
48.0
2,000
Max.
36.0
72.0
Units
VDC
Capacitors
mW
Max.
±3.0
±0.5
±1.0
100
50
120
±0.01
Continuous (Autorecovery)
Conditions
60 Seconds
500 VDC
Single Output
Dual Output
Conditions
Ambient
Min.
-40
-55
Free Air Convection
RH, Non-condensing
95
%
Min.
1,500
1,000
100
300
Typ.
Max.
+85
+125
500
Typ.
Max.
Units
VDC
MΩ
kHz
±0.02
Units
%
%
%
%
mV P - P
mV P - P
%
%/ºC
Output
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Noise (20 Hz - 300 kHz)
Ripple (DC - 20 MHz)
Output Power Protection
Temperature Coefficient
Output Short Circuit
Dual Output , Balanced Loads
Vin = Min to Max
Iout = 10% to 100%
See Note 2
Conditions
Min.
Typ.
±1.0
±3.0
±0.2
±0.5
50
RoHS Compliant
General
Parameter
Isolation Voltage
Isolation Resistance
Switching Frequency
Environmental
Parameter
Operating Temperature Range
Storage Temperature Range
Cooling
Units
ºC
ºC
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
Humidity
Physical
Case Size
Case Material
Weight
1.25 x 0.80 x 0.37 Inches (31.8 x 20.3 x 9.5 mm)
Non-Conductive Black Plastic (UL94V-0)
0.52 Oz (15g)
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.
40.0
80.0
300
2,500
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
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
Model Selection Guide
Model
Number
A301RU
A302RU
A303RU
A304RU
A305RU
A306RU
A307RU
A311RU
A312RU
A313RU
A314RU
A315RU
A316RU
A317RU
Voltage (VDC)
Nominal
24
24
24
24
24
24
24
48
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
9.0 - 36.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
Input
Current (mA)
Full-Load
172
163
157
157
174
161
165
87
83
79
79
87
80
83
Output
Reflected
Efficiency
Current
Ripple Voltage Current
(%, Typ)
(VDC) (mA, Max) (mA, Min)
No-Load Current
(mA, Typ)
Fuse Rating
Slow-Blow
(mA)
750
750
750
750
750
750
750
500
500
500
500
500
500
500
20
20
20
20
20
20
20
10
10
10
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
±5.0
±12.0
±15.0
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
909
600
250
200
±300
±125
±100
909
600
250
200
±300
±125
±100
90.0
60.0
25.0
20.0
±30.0
±12.0
±10.0
90.0
60.0
25.0
20.0
±30.0
±12.0
±10.0
73
77
80
80
72
78
76
72
76
79
79
72
78
76
For models with a metal case, add an “M”
to the model number (ie: A315RUM)
Notes:
1. Exceeding the input range by a significant margin may damage the
units. For 24V input the input voltage should not exceed 40V; for 48V
models it should not exceed 80V.
2. Maximum ouput noise for dual output units is 150 mV P-P. When measuring
output ripple, it is recommended that an external 0.33
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.
3. These units should not be operated with a load under the specified minimum.
Operation at no-load will increase ripple significantly and may cause damage
to the unit.
4. These converters are specified for operation without external components.
However, in some applications the addition of input/output capacitors will
enhance stability and reduce output ripple. Recommended capacitor values
are:Recommended capacitor values are:
Vin
Input
Capacitor
Output Capacitor
Vout
0ºC to +70ºC -40ºC to +85ºC
(Electrolytic)
(Tantalum)
100
µF
100
µF
100
µF
100
µF
47
µF
47
µF
47
µF
47
µF
Derating Curve
Mechanical Dimensions
24 VDC
48 VDC
Sing
10
µF
3.3 VDC
Dual 10 ~ 47
µF
5 VDC
Sing
10
µF
12 VDC
Dual 10 ~ 47
µF
15 VDC
For applications requiring very low output noise levels,
a simple LC filter should be effective.
5. It is recommended that a fuse be used on the input of
a power supply for protection. See the Model Selection
table above for the correct rating.
Pin Connections
Pin
2, 3
9
10
11
14
15
16
22, 23
Single
-Vin
No Pin
NC
NC
+Vout
NC
-Vout
+Vin
Dual
-Vin
Common
NC
-Vout
+Vout
NC
Common
+Vin
NC: No Connection
MicroPower Direct
www.micropowerdirect.com
•
TEL: (781) 344-8226
Mechanica
Mechanical Notes:
•
All dimensions are typical in inches (mm)
dimens
•
Tolerance x.xx = ±0.01 (±0.25)
292 Page Street, STE D, Stoughton, MA 02072
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
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