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: Parameter Conditions Min. Typ. Max. Units
· 3W Output Power 24 VDC Input 6.0 7.5 9.0
Input Start Voltage VDC
· 4:1 Input Voltage Range 48 VDC Input 12.0 15.0 18.0
· 1,500 VDC Isolation 24 VDC Input 8.5
Under Voltage Shutdown VDC
· EN60950 Compliant 48 VDC Input 16.0
Input Filter (Pi) Filter (Meets EN55022 Class "A")
· Meets EN55022 "A"
Reverse Polarity Input Current 0.5 A
· Single & Dual Outputs
Short Circuit Input Power 2,000 mW
· 1.0 MH MTBF Output
· Industry Standard Pin-Out Parameter Conditions Min. Typ. Max. Units
Output Voltage Accuracy ±0.5 ±2.0 %
Output Voltage Balance Dual Output , Balanced Loads ±0.5 ±3.0 %
Line Regulation Vin = Min to Max ±0.2 ±1.0 %
Load Regulation Iout = 10% to 100% ±0.3 ±1.0 %
Ripple & Noise (20 MHz) See Note 1 40 75 mV P - P
Ripple & Noise (20 MHz) Over Line, Load & Temp 150 mV P - P
Ripple & Noise (20 MHz) 15 mV rms
Output Power Protection Vin = Min 110 %
Transient Recovery Time (Note 2) 150 500 µSec
25% Load Step Change
Transient Response Deviation ±2.0 %
Temperature Coefficient ±0.01 ±0.02 %/ºC
Output Short Circuit Continuous (Autorecovery)
General
Parameter Conditions Min. Typ. Max. Units
Isolation Voltage 60 Seconds 1,500 VDC
Isolation Resistance 500 VDC 1,000 M
Isolation Capacitance 100 kHz/1V 380 500 pF
Switching Frequency 350 kHz
Environmental
Parameter Conditions Min. Typ. Max. Units
Operating Temperature Range Ambient -40 +71 ºC
Operating Temperature Range Case +90 ºC
Storage Temperature Range -55 +125 ºC
Cooling Free Air Convection
Humidity RH, Non-condensing 95 %
Physical
MicroPower Direct Case Size 1.25 x 0.80 x 0.40 Inches (31.8 x 20.3 x 10.2 mm)
292 Page Street
Case Material Non-Conductive Black Plastic (UL94V-0)
Suite D
Stoughton, MA 02072 Weight 0.42 Oz (12.2g)
USA Reliability Specifications
Parameter Conditions Min. Typ. Max. Units
T: (781) 344-8226 MTBF MIL HDBK 217F, 25ºC, Gnd Benign 1.0 MHours
F: (781) 344-8481 Absolute Maximum Ratings
E: sales@micropowerdirect.com Parameter Conditions Min. Typ. Max. Units
W: www.micropowerdirect.com
24 VDC Input -0.7 50.0
Input Voltage Surge (1 Sec) VDC
48 VDC Input -0.7 100.0
Lead Temperature 1.5 mm From Case For 10 Sec 260 ºC
Internal Power Dissipation All Models 2,500 mW
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
www.micropowerdirect.com
CompuMess Elektronik GmbH · Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11
info@compumess.de · www.compumess.de · www.netzteile.de
CompuMess Elektronik GmbH · Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11
Model Selection Guide www.micropowerdirect.com
info@compumess.de · www.compumess.de · www.netzteile.de
Input Output
Voltage (VDC) Current (mA) Reflected Fuse Rating
Model Efficiency
Ripple Voltage Current Current Slow-Blow
Number (%, Typ)
Nominal Range Full-Load No-Load Current (VDC) (mA, Max) (mA, Min) (mA)
(mA, Typ)
A301RU 24 9.0 - 36.0 138 20 10 3.3 750 93.0 75 1,000
A302RU 24 9.0 - 36.0 158 20 10 5.0 600 75.0 79 1,000
A303RU 24 9.0 - 36.0 154 20 10 12.0 250 32.0 81 1,000
A304RU 24 9.0 - 36.0 152 20 10 15.0 200 25.0 82 1,000
A305RU 24 9.0 - 36.0 156 20 10 ±12.0 ±125 ±16.0 80 1,000
A306RU 24 9.0 - 36.0 156 20 10 ±15.0 ±100 ±13.0 80 1,000
A311RU 48 18.0 - 75.0 68 10 10 3.3 750 93.0 76 500
A312RU 48 18.0 - 75.0 78 10 10 5.0 600 75.0 80 500
A313RU 48 18.0 - 75.0 75 10 10 12.0 250 32.0 83 500
A314RU 48 18.0 - 75.0 74 10 10 15.0 200 25.0 84 500
A315RU 48 18.0 - 75.0 76 10 10 ±12.0 ±125 ±16.0 82 500
A316RU 48 18.0 - 75.0 76 10 10 ±15.0 ±100 ±13.0 82 500
Notes:
1. When measuring output ripple, it is recommended that an external 0.47 µF ceramic capacitor be Derating Curve
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.
Capacitive Load
Maximum Maximum
Vout Load Vout Load
Capacitance Capacitance
Mechanical Dimensions
3.3 VDC 680 µF ±12 VDC 150 µF
5 VDC 470 µF ±15 VDC 100 µF
12 VDC 330 µF
15 VDC 220 µF
Pin Connections
Pin Single Dual
2, 3 -Vin -Vin
9 No Pin Common
11 NC -Vout
14 +Vout +Vout
16 -Vout Common
22, 23 +Vin +Vin
NC: No Connection
Mechanical Notes:
MicroPower Direct · All dimensions are typical in inches (mm)
· Tolerance x.xx = ±0.01 (±0.25)
We Power Your Success - For Less!
292 Page Street Ste D Stoughton, MA 02072 TEL: (781) 344-8226
·
CompuMess Elektronik GmbH 344-8481 · E-Mail: sales@micropowerdirect.com
· FAX: (781)
· Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11
info@compumess.de · www.compumess.de · www.netzteile.de