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Delphi Series Q48DR, 87W-100W, Quarter Brick
Dual Output, DC/DC Power Modules:
48V in, 1.5V and 3.3V, 15A out each channel
The Delphi Series Q48DR Quarter Brick Dual, 48V input, dual output,
isolated DC/DC converters are the latest offering from a world leader in
power system and technology and manufacturing -- Delta Electronics,
Inc. This product family provides up to 100 watts of power or 15A of
output current (each channel simultaneously) in an industry standard
footprint. Both output channels can be used independently of each other
with option to trim each channel either in the same direction or in
reversion direction. With creative design technology and optimized
circuit, these converters possess outstanding electrical and thermal
performance, as well as extremely high reliability under highly stressful
operating conditions. All the models are fully protected from abnormal
input/output voltage, current, and temperature conditions. The Delphi
Series converters meet all safety requirements with basic insulation.
DATASHEET
DS_Q48DR1R533_03152007
FEATURES
1
High Efficiency: 87.5%@1.5V/15A, 3.3V/15A
Standard footprint: 57.9mmx36.8mmx8.5mm
(2.28"×1.45"×0.33")
Industry standard pin out
2:1 input voltage range
Fixed frequency operation
Fully protected: OTP, OCP, OVP, UVLO
No minimum load required
1500 V isolation and Basic insulation
Two independent power train and separate
trim for each output
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing facility
UL/cUL 60950 (US & Canada) Recognized,
and TUV (EN60950) Certified
CE mark meets 73/23/EEC and 93/68/EEC
directives
OPTIONS
Optional second trim pin for
independent trim of the two outputs.
Positive On/Off logic
Short pin lengths available
APPLICATIONS
Telecom/DataCom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Test Equipment
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Table of Contents
Related Manuals for Delta Electronics Delphi Q48DR
Summary of Contents for Delta Electronics Delphi Q48DR
- Page 1 Dual Output, DC/DC Power Modules: 48V in, 1.5V and 3.3V, 15A out each channel The Delphi Series Q48DR Quarter Brick Dual, 48V input, dual output, isolated DC/DC converters are the latest offering from a world leader in power system and technology and manufacturing -- Delta Electronics, Inc.
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Page 2: Technical Specifications
TECHNICAL SPECIFICATIONS PARAMETER ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Transient (100ms) Operating Temperature Storage Temperature Input/Output Isolation Voltage INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage Maximum Input Current No-Load Input Current Off Converter Input Current Inrush Current(I Input Reflected-Ripple Current... - Page 3 ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. load current Iout1 for minimum, nominal, and maximum input voltage at 25 Figure 3: Efficiency vs. load current Iout1 and Iout2 for minimum, nominal, and maximum input voltage at 25 Iout1=Iout2 DS_Q48DR1R533_03152007 Figure 2: Efficiency vs. load current Iout2 for minimum, C, for Iout2=7.5A.
- Page 4 ELECTRICAL CHARACTERISTICS CURVES Figure 5: Turn-on transient at zero load current(2ms/div). Vin=48V. Negative logic turn on. Bottom Trace: ON/OFF input: 5V/div Figure 7: Turn-on transient at zero load current (2ms/div). Vin=48V. Positive logic turns on. Top Trace: Vout; 1V/div; Bottom Trace: ON/OFF input: 5V/div DS_Q48DR1R533_03152007 Vout2 Vout1...
- Page 5 ELECTRICAL CHARACTERISTICS CURVES Figure 9: Typical full load input characteristics at room temperature Figure 11: Output voltage response to step-change in load current Iout1 (75%-50%-75% of Io, max; di/dt = 0.1A/µs) at Iout2=7.5A. Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor.
- Page 6 ELECTRICAL CHARACTERISTICS CURVES Figure 13: Output voltage response to step-change in load current Iout2 (75%-50%-75% of Io, max; di/dt = 2.5A/µs) at Iout1=7.5A. Load cap: 470µF, 35m capacitor 1µF ceramic (200mV/div), Ch2=Iout2 (7.5A/div), Ch3=Vout1 (200mV/div), Ch4=Iout1 (7.5A/div) Scope measurement should be made using a BNC cable (length shorter than 20 inches).
- Page 7 ELECTRICAL CHARACTERISTICS CURVES Figure 17: Input Terminal Ripple Current-i output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (500 mA/div, 2us/div). Copper Strip Vo(+) Vo(-) Figure 19: Output voltage noise and ripple measurement test setup DS_Q48DR1R533_03152007 , at full rated Figure 18: Input reflected ripple current-i...
- Page 8 ELECTRICAL CHARACTERISTICS CURVES Figure 21: Output voltage vs. load current Iout1 showing typical current limit curves and converter shutdown points. DS_Q48DR1R533_03152007 Figure 22: Output voltage vs. load current Iout2 showing typical current limit curves and converter shutdown points.
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Page 9: Design Considerations
DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will interact with the modules and affect the stability. A low ac-impedance input source is recommended. If the source inductance is more than a few µH, we advise adding a 10 to 100 µF electrolytic capacitor (ESR <... -
Page 10: Features Descriptions
FEATURES DESCRIPTIONS Over-Current Protection The modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will automatically shut down (hiccup mode). The modules will try to restart after shutdown. - Page 11 FEATURES DESCRIPTIONS (CON.) Figure 25: Circuit configuration for trim-up (increase output voltage) If the external resistor is connected between the TRIM and RTN, the output voltage set point increases (Fig. 25). The external resistor value is from table below. Trim Resistor (Vout Increase) Δ...
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Page 12: Thermal Considerations
THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. -
Page 13: Mechanical Drawing
MECHANICAL DRAWING Pin No. Name -Vin ON/OFF +Vin +Vout2 TRIM Output RTN +Vout1 Optional Notes: Pins 1-8 are 1.00mm (0.040”) diameter All pins are copper with Tin plating. DS_Q48DR1R533_03152007 Function Negative input voltage Remote ON/OFF Positive input voltage Positive output voltage2 Output voltage trim Positive output voltage1 Trim 2... -
Page 14: Part Numbering System
PART NUMBERING SYSTEM Form Factor Input Number of Voltage Outputs Q – Quarter 36V~75V D- Dual Brick Output MODEL LIST MODEL NAME Q48DR1R533NRFA Q48DR1R833NRFA Q48DR2R533NRFA Q48DR3R350NRFA CONTACT: www.delta.com.tw/dcdc USA: Telephone: East Coast: (888) 335 8201 West Coast: (888) 335 8208 Fax: (978) 656 3964 Email: DCDC@delta-corp.com...