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HPQ-12-25-D48 Datasheet, PDF (6/12 Pages) Murata Manufacturing Co., Ltd. – Isolated 300-Watt Quarter Brick DC/DC Converters | |||
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HPQ-12/25-D48 Series
Isolated 300-Watt Quarter Brick DC/DC Converters
Notes
â Unless otherwise noted, all speciï¬cations apply over the input voltage range, full temperature
range, nominal output voltage and full output load. General conditions are near sea level altitude,
no base plate installed and natural convection airï¬ow unless otherwise speciï¬ed. All models are
tested and speciï¬ed with external parallel 1 μF and 10 μF multi-layer ceramic output capacitors.
No external input capacitor is used (see Application Notes). All capacitors are low-ESR types wired
close to the converter. These capacitors are necessary for our test equipment and may not be
needed in the userâs application.
â Input (back) ripple current is tested and speciï¬ed over 5 Hz to 20 MHz bandwidth. Input ï¬ltering is
Cin = 33 μF, Cbus = 220μF and Lbus = 4.7 μH.
â All models are stable and regulate to speciï¬cation under no load.
â The Remote On/Off Control is referred to -Vin.
â Regulation speciï¬cations describe the output voltage changes as the line voltage or load current
is varied from its nominal or midpoint value to either extreme. The load step is ±25% of full load
current.
â
Output Ripple and Noise is measured with Cout = 1μF MLCC paralleled with 10μF tantalum, 20
MHz oscilloscope bandwidth and full resistive load.
â The Sense and Trim pins are removed for the âXâ model option.
â NOTICEâPlease use only this customer data sheet as product documentation when laying out your
printed circuit boards and applying this product into your application. Do NOT use other materials as
ofï¬cial documentation such as advertisements, product announcements, or website graphics.
We strive to have all technical data in this customer data sheet highly accurate and complete. This cus-
tomer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally
on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be
especially careful using any data sheets labeled âPreliminaryâ since data may change without notice.
The pinout (Pxx) and case (Cxx) designations (typically P65 or C59) refer to a generic family of
closely related information. It may not be a single pinout or unique case outline. Please be aware
of small details (such as Sense pins, Power Good pins, etc.) or slightly different dimensions
(baseplates, heat sinks, etc.) which may affect your application and PC board layouts. Study the
Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully.
Please contact Murata Power Solutions if you have any questions.
TYPICAL PERFORMANCE DATA
Efï¬ciency and Power Dissipation @ +25°C
100
40
95
35
90
30
VIN = 75 V
85
VIN = 48 V
25
VIN = 36 V
80
20
75
15
Power Dissipation
VIN = 48 V
70
10
65
5
3 5 7 9 11 13 15 17 19 21 23 25
Iout (Amps)
Maximum Current Temperature Derating vs. Airï¬ow (Vin=Vnom., airï¬ow direction is
from -Vin to +Vin, with baseplate, at sea level)
30
25
20
100 LFM
200 LFM
15
300 LFM
400 LFM
10
5
0
30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (°C)
Maximum Current Temperature Derating vs. Airï¬ow (Vin=Vnom., airï¬ow direction is
from Vin to Vout, no baseplate, at sea level)
30
25
20
100 LFM
200 LFM
15
300 LFM
400 LFM
10
5
0
30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (°C)
Power On Startup Delay Output
(Vin = 0 to 48V, Iout = 25A, Cload = 0, Ta = +25°C)
www.murata-ps.com
email: sales@murata-ps.com
09 Nov 2010 MDC_HPQ-12/25-D48 Series.A03 Page 6 of 12
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