MicroPower
Direct
3W, Ultra-Wide Input
High Isolation
DC/DC Converters
Key Features
4:1 Input Range
3W Output Power
Tight Line/Load Regulation
3.5 kVDC I/O Isolation
Single & Dual Outputs
Low Cost
A300RUI Series
Electrical Specifications
Specifications typical @ +251C with nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Parameter
Input Start Voltage
Input Filter
Short Circuit Input Power
Conditions
24 VDC Input
48 VDC Input
Min.
4.5
8.5
Typ.
6.0
12.0
Max.
8.5
17.0
2,000
Conditions
Dual Output , Balanced Loads
Vin = Min to Max
Iout = 10% to 100%
120
25% Load Step Change
150
!2.0
!0.01
Continuous
Conditions
60 Seconds
500 VDC
100 kHz, 1V
Min.
3,500
1,000
390
1.0
300
Conditions
Min.
-40
-40
Free Air Convection
RH, Non-condensing
90
%
Typ.
Max.
+85
+125
Typ.
Max.
Units
VDC
MΩ
pF
mA
kHz
Units
1C
1C
!0.02
500
Min.
Typ.
!0.5
!0.5
!0.2
!0.2
Max.
!1.0
!1.0
!0.5
!0.5
60
Units
VDC
π
(Pi) Filter
mW
Units
%
%
%
%
mV P - P
%
µSec
%
%/1C
Output
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20 MHz)
Output Power Protection
Transient Recovery Time (Note 1)
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
General
Parameter
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Leakage Current
Switching Frequency
Environmental
Parameter
Operating Temperature Range
Storage Temperature Range
Cooling
Humidity
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
0.74 Oz (21g)
Conditions
MIL HDBK 217F, 251C, Gnd Benign
Conditions
24 VDC Input
48 VDC Input
All Models
Min.
950
Min.
-0.7
-0.7
Typ.
Max.
50.0
100.0
2,500
Typ.
Max.
Units
kHours
Units
VDC
mW
Reliability Specifications
Parameter
MTBF
Absolute Maximum Ratings
Parameter
Input Voltage Surge (1 Sec)
Internal Power Dissipation
MicroPower Direct
Caution:
Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
TEL: (781) 344-8226
FAX: (781) 344-8481
E-Mail: sales@micropowerdirect.com
WEB: www/micropowerdirect.com
Model Selection Guide
Model
Number
A301RUI
A302RUI
A303RUI
A304RUI
A305RUI
A306RUI
A311RUI
A312RUI
A313RUI
A314RUI
A315RUI
A316RUI
Notes:
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 - 72.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
18.0 - 72.0
Fuse Rating
Reflected
Efficiency
Slow-Blow
Current
Ripple Voltage Current
(%, Typ)
(mA)
(VDC) (mA, Max) (mA, Min)
Full-Load No-Load Current
(mA, Typ)
Input
Current (mA)
Output
166
158
158
166
158
158
83
80
79
83
80
80
12
12
12
12
12
12
7
7
7
7
7
7
5
5
5
5
5
5
5
5
5
5
5
5
5.0
12.0
15.0
!5.0
!12.0
!15.0
5.0
12.0
15.0
!5.0
!12.0
!15.0
600
250
200
!300
!125
!100
600
250
200
!300
!125
!100
60.0
25.0
20.0
!30.0
!12.0
!10.0
60.0
25.0
20.0
!30.0
!12.0
!10.0
75
79
79
75
79
79
75
78
78
76
79
79
1,000
1,000
1,000
1,000
1,000
1,000
500
500
500
500
500
500
1. Transient recovery is measured to within a 1% error band for a load step change of 75% tp 100%.
2. Dual output units may be connected to provide a 10V, 24V or 30V output. To do this connect the load across the
positive (+Vout) and negative (-Vout) outputs and float the output common.
Derating Curve
Capacitive Load
Output Power %
Single Output
(µF
Max)
1,000
-5%/
1
C
Dual Output
(µF
Max)
!220
Ambient Temperature ( C)
Mechanical Dimensions
0.18
(4.6)
23
22
2
3
0.10
(2.54)
Pin Connections
Pin
2, 3
9
11
14
Single
-Vin
No Pin
NC
+Vout
-Vout
+Vin
Dual
-Vin
Common
-Vout
+Vout
Common
+Vin
Bottom
16
14
9
11
1.25
(31.8)
Side
16
22, 23
NC: No Connection
0.02 DIA
(0.5)
Notes:
0.60
(15.2)
0.80
(20.3)
0.10
(2.54)
0.15
(3.8)
0.40
(10.2)
All dimensions are typical in inches (mm)
Tolerance x.xx =
!0.01
(!0.25)
Pin 1 is marked by a “dot” or indentation on the top of the unit
MicroPower
Direct
232 Tosca Drive, Stoughton, MA 02072
www.micropowerdirect.com
sales@micropowerdirect.com
phone: (781) 344 - 8226
*
fax: (781) 344 - 8481
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