Delta Q48DC - Manual
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Table of Contents:
- Page 2 – TECHNICAL SPECIFICATIONS; PARAMETER
- Page 3 – ELECTRICAL CHARACTERISTICS CURVES; maximum input voltage at 25
- Page 4 – Turn-on transient at full rated load current (resistive
- Page 5 – Figure
- Page 7 – Copper Strip; Output voltage noise and ripple measurement; Output voltage vs. load current showing typical
- Page 9 – Trim; Remote on/off implementation
- Page 10 – Circuit configuration for trim-down (decrease; down; Circuit configuration for trim-up (increase output
- Page 11 – THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind Tunnel Test Setup; THERMAL CURVES; Temperature measurement location; Output current vs. ambient temperature and air velocity
- Page 12 – MECHANICAL DRAWING; Function
- Page 13 – MODEL NAME; CONTACT
FEATURES
High efficiency: 88%@
±
12.1V/2.7A
Size: 57.9mm x 36.8mm x 9.7mm
(2.28”×1.45”×0.38”)
Industry standard pin out
Fixed
frequency
operation
Input UVLO, Output OCP, OVP, OTP
2250V
isolation
No minimum load required
Adjustable output voltage
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing
facility
UL/cUL 60950-1 (US & Canada), and TUV
(EN60950-1) - pending
Delphi Series Q48DC, 65W Quarter Brick Dual Output
DC/DC Power Modules: 48V in,
±
12.1V, 2.7A Output
The Delphi Series Q48DC second generation Quarter Brick, 48V
input, positive and negative bipolar dual output, and isolated DC/DC
converters are the latest offering from a world leader in power system
and technology and manufacturing
―
Delta Electronics, Inc. The
Q48DC product family is the second generation in the bipolar dual
output series and it provides even more cost effective solution of
positive and negative bipolar output (output voltage is 12.1V) and up
to 65 watts of power in an industry standard quarter brick package
size. Both output channels can be used independently. With creative
design technology and optimization of component placement, these
converters possess outstanding electrical and thermal performance,
as well as extremely high reliability under highly stressful operating
conditions.
All models are fully protected from abnormal input/output
voltage, current, and temperature conditions. The Delphi Series
converters meet all safety requirements with basic insulation.
PRELIMINARY DATASHEET
DS_ Q48DC12003_03112008
OPTIONS
Positive On/Off logic
Output OVP hiccup available
APPLICATIONS
Telecom / DataCom
Wireless
Networks
Optical
Network
Equipment
Server and Data Storage
Industrial / Test Equipment
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Summary
DS_Q48DC12003_03112008 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS Q48DC12003NR A Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient 100ms 100 Vdc Operating Tempera...
DS_Q48DC12003_03112008 3 ELECTRICAL CHARACTERISTICS CURVES 60 63 66 69 72 75 78 81 84 87 90 0.3 0.7 1.1 1.5 1.9 2.3 2.7 OUTPUT CURRENT(A ) E F F IC IE N C Y (% ) 1 48Vin 75Vin 36V in 3.0 3.8 4.6 5.4 6.2 7.0 7.8 8.6 9.4 10.2 0.3 0.7 1.1 1.5 1.9 2.3 2.7 OUTPUT CURRENT(A ) PO W E R D ISSI PAT IO N (W )...
DS_Q48DC12003_03112008 4 ELECTRICAL CHARACTERISTICS CURVES Figure 4: Turn-on transient at zero load current (10ms/div). Vin=48V. Top Trace: Vout: 5V/div; Bottom Trace: ON/OFF input: 5V/div. Figure 5: Turn-on transient at full rated load current (resistive load) (10 ms/div). Vin=48V. Top Trace: Vout;...
