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Delphi Series S48SS, 15W Family
DC/DC Power Module: 48V in, 12V/1.25A out
The Delphi Series S48SS, surface mountable, 48V input, single output,
isolated DC/DC converter, is the latest offering from a world leader in
power system and technology and manufacturing－ Delta Electronics,
Inc. This product family provides up to 15 watts of power or up to 4.5A
of output current (for 3.3V and below) in an industry standard footprint.
With creative design technology and optimization of component
placement, the Delphi Series Small Power converters possess
outstanding electrical and thermal performance, as well as extremely
high reliability under highly stressful operating conditions. All models
are protected from abnormal input/output voltage and current
conditions. An encapsulated version is available for the most robust
performance in harsh environments.
DATASHEET
DS_S48SS12001_06082006
DS_S48SS12001_06082006
1
FEATURES
High efficiency: 86.5% @ 12V/1.25A
Standard footprint
Surface mountable
Industry standard pin out
Low profile: 0.48"
Fixed frequency operation
Input UVLO, Output OCP, OVP
No minimum load required
2:1 input voltage range
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
Applications
Telecom/DataCom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Test Equipment
Delta Electronics, Inc.
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Related Manuals for Delta Electronics Delphi Series S48SS
Summary of Contents for Delta Electronics Delphi Series S48SS
- Page 1 Delphi Series S48SS, 15W Family DC/DC Power Module: 48V in, 12V/1.25A out The Delphi Series S48SS, surface mountable, 48V input, single output, isolated DC/DC converter, is 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 =25°C, airflow rate=300 LFM, V 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... - Page 3 ELECTRICAL CHARACTERISTICS CURVES 36Vin 48Vin 0.25 Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25 ° Figure 3: Typical input characteristics at room temperature. DS_s48SS12001_06082006 75Vin 0.75 1.25 OUTPUT CURRENT (A) Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25 Io=1.25A Io=0.75A...
- Page 4 ELECTRICAL CHARACTERISTICS CURVES Turn-on transient at zero load current (10 ms/div). Top Figure5 Trace: Vout (5V/div); Bottom Trace: ON/OFF Control (2V/div). TEST 12uH Cs:68uF/100V ESR< 0.3 Ω 100KHz ﹫ ℃ Test set-up diagram showing measurement points for Figure 7 Input Reflected Ripple Current (Figure 8). Note: Measured input reflected-ripple current with a simulated source Inductance (L ) of 12 µH.
- Page 5 ELECTRICAL CHARACTERISTICS CURVES Copper Strip Vo(+) Vo(-) Output voltage noise and ripple measurement test Figure 9 setup. Scope measurement should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module.
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Page 6: Thermal Curves
THERMAL CURVES: Top View Figure 12: Case temperature measurement location. Pin locations are for reference only. S48SS12001NR A Output Current vs. Ambient Temperature and Air Velocity @Vin = 75V Output Current(A) Natural Convection 100LFM 200LFM 300LFM Figure 14: Output current vs. ambient temperature and air velocity (Vin=75V) DS_s48SS12001_06082006 S48SS12001NR A Output Current vs. -
Page 7: Design Consideration
DESIGN CONSIDERATION 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 8: 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 9: Thermal Considerations
THERMAL CONSIDERATIONS Thermal management is an important part of the system FACING PWB design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire MODULE temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to characterize the AIR VELOCITY thermal performance of the power module is a wind... -
Page 10: Mechanical Drawing
MECHANICAL DRAWING Pin No. Name +Vout -Vout Trim ON/OFF -Vin +Vin DS_s48SS12001_06082006 Function Positive output voltage Negative output voltage Output voltage trim No Connection No Connection No Connection No Connection ON/OFF Logic No Connection No Connection Negative input voltage Positive input voltage... -
Page 11: Part Numbering System
PART NUMBERING SYSTEM Form Input Number of Factor Voltage Outputs S- Small 48V- S- Single Power 36V~75V MODEL LIST MODEL NAME S48SS1R805NRFA S48SS2R504NRFA S48SS3R303NRFA S48SS3R304NRFA S48SS05002NRFA S48SS05003NRFA S48SS12001NRFA 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...
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