A300R
Series
Compact,
Regulated, 3W
Single & Dual Output
DC/DC Convert
ers
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Key Features:
Parameter
Conditions
●
3W Output Power
Input Voltage Range
●
Compact DIP Case
●
500 VDC Isolation
●
Tight Line/Load Regulation
Input Filter
Reverse Polarity Input Current
●
Single & Dual Outputs
Short Circuit Input Power
●
20 Standard Models
Output
●
1.0 MH MTBF
Parameter
●
Industry Standard Pin-Out
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
Min.
5 VDC Input
4.5
12 VDC Input 10.8
24 VDC Input 21.6
48 VDC Input 43.2
π (Pi) Filter
Typ.
5.0
12.0
24.0
48.0
Max.
5.5
13.2
26.4
52.8
0.5
2,500
Units
VDC
A
mW
Units
%
%
%
%
mV P - P
mV P - P
mV rms
%
μSec
%
%/ºC
Conditions
Dual Output , Balanced Loads
Vin = Min to Max
Iout = 10% to 100%
Over Line, Load & Temp.
Min.
Typ.
±2.0
±1.0
±0.2
±0.2
40
Max.
±4.0
±3.0
±0.3
±0.5
50
75
5
50
±6.0
±0.02
120
50% Load Step Change
±0.01
Continuous
Conditions
60 Seconds
500 VDC
100 kHz, 1V
Min.
500
1,000
40
Conditions
Typ.
Max.
General
Parameter
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
Units
VDC
MΩ
pF
kHz
Units
ºC
ºC
ºC
%
100
80
150
Environmental
Parameter
Operating Temperature Range
Storage Temperature Range
Cooling
Humidity
Min.
Typ.
-25
-25
-40
Free Air Convection
RH, Non-condensing
Max.
+71
+90
+125
95
MicroPower Direct
232 Tosca Drive
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)
Non-Conductive Black Plastic (UL94-V0)
0.42 Oz (12g)
Conditions
MIL HDBK 217F, 25ºC, Gnd Benign
Conditions
5 VDC Input
12 VDC Input
24 VDC Input
48 VDC Input
1.5 mm From Case For 10 Sec.
All Models
Min.
600
Min.
-0.7
-0.7
-0.7
-0.7
Typ.
Max.
Units
kHours
Units
VDC
ºC
mW
Reliability Specifications
Parameter
MTBF
Absolute Maximum Ratings
Parameter
Input Voltage Surge (1 Sec)
Lead Temperature
Internal Power Dissipation
Typ.
Max.
7.5
15.0
30.0
55.0
260
3,000
Caution:
Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
Model Selection Guide
Model
Number
A301R
A302R
A303R
A304R
A305R
A311R
A312R
A313R
A314R
A315R
A321R
A322R
A323R
A324R
A325R
A331R
A332R
A333R
A334R
A335R
Notes:
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 - 5.5
4.5 - 5.5
4.5 - 5.5
4.5 - 5.5
4.5 - 5.5
10.8 - 13.2
10.8 - 13.2
10.8 - 13.2
10.8 - 13.2
10.8 - 13.2
21.6 - 26.4
21.6 - 26.4
21.6 - 26.4
21.6 - 26.4
21.6 - 26.4
43.2 - 52.8
43.2 - 52.8
43.2 - 52.8
43.2 - 52.8
43.2 - 52.8
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
1,000
960
960
1,000
1,000
420
400
400
420
420
210
195
195
210
210
105
100
100
105
105
100
100
100
100
100
50
50
50
50
50
25
25
25
25
25
15
15
15
15
15
100
100
100
100
100
40
40
40
40
40
25
25
25
25
25
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
0.0
0.0
0.0
±0.0
±0.0
0.0
0.0
0.0
±0.0
±0.0
0.0
0.0
0.0
±0.0
±0.0
0.0
0.0
0.0
±0.0
±0.0
60
62
62
60
60
60
62
62
60
60
60
64
64
60
60
60
62
62
60
60
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
1.
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. For noise sensitive applications, the use
of 1.5 μF capacitors will reduce the output ripple.
2.
Transient recovery is measured to within a 1% error band for a load step change of
50% 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 <1.0Ω at 100 kHz) capacitor be
mounted close to the converter. For 5V input units a 2.2 μF is recommended, for 12V
input units, a 1.0 μF; and for 24V & 48V units a 0.47 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
Pin Connections
Pin
1, 24
2, 23
3, 22
10, 15
11, 14
12, 13
Single
+Vin
NC
NC
-Vout
+Vout
-Vin
Dual
+Vin
-Vout
Common
Common
+Vout
-Vin
Mechanical Dimensions
NC: No Connection
Capacitive Load
Single Output
470 μF Max
Dual Output
±220 μF Max
Mechanical Notes:
• All dimensions are typical in inches (mm)
• Tolerance x.xx = ±0.01 (±0.25)
• Leads are tin plated for improved solderability.
MicroPower Direct
www.micropowerdirect.com
232 Tosca Drive Stoughton, MA 02072
■
TEL:
(781) 344-8226
■
FAX:
(781) 344-8481
■
E-Mail:
sales@micropowerdirect.com
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