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Delphi Series F48SA, 700W Full Brick Family
DC/DC Power Module: 48Vin, 28Vout
The Delphi Series F48SA, 48V input, single output, full brick sized
isolated DC/DC converter is the latest offering from a world leader in
power systems technology and manufacturing ― Delta Electronics,
Inc. The Delphi F48SA series provides up to 700 watts of power or
up to 25A of output current. This product family operates from a wide
input range of 36V to 75V. 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 protected from abnormal input/output voltage and current
conditions, and feature 2250V input/output isolation and basic
insulation. An optional heatsink is available for extended operation.
DATASHEET
DS_F48SA28025_12072007
FEATURES
High efficiency: 91.5% @ 28V/25A
Industry standard size and pinout:
61.0 x 116.8 x 12.7mm (2.40"x 4.60"x 0.50")
Fixed frequency operation
Remote sense
Input UVLO, Output OCP, OVP & OTP
Auxiliary bias power
Basic insulation
2250V isolation
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950 (US & Canada) recognized, and
TUV (EN60950) certified
CE mark meets 73/23/EEC and 93/68/EEC
directive
OPTIONS
Heatsink for
extended operation
Output current monitoring
Delayed overcurrent shutdo
Parallel operation using forced
current sharing
APPLICATIONS
Telecom / DataCom
Wireless Networks
Optical Network Equ
ipment
Server and Data Storage
Industrial / Test Equipmen
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Related Manuals for Delta Electronics Delphi F48SA
Summary of Contents for Delta Electronics Delphi F48SA
- Page 1 DC/DC converter is the latest offering from a world leader in power systems technology and manufacturing ― Delta Electronics, Inc. The Delphi F48SA series provides up to 700 watts of power or up to 25A of output current. This product family operates from a wide input range of 36V to 75V.
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Page 2: Technical Specifications
TECHNICAL SPECIFICATIONS =25°C, V =48Vdc, nominal Vout unless otherwise noted.) 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 Input Over-Voltage Lockout Turn-On Voltage Threshold... - Page 3 ELECTRICAL CHARACTERISTICS CURVES 36Vin 48Vin Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C. DS_F48SA28025_12072007 75Vin OUTPUT CURRENT (A) Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C.
- Page 4 ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic Figure 3: Turn-on transient at full rated load current (resistive load). CH3: Vout;5V/div; CH1: ON/OFF input: 5V/div For Positive Remote On/Off Logic Figure 5: Turn-on transient at full rated load current (resistive load) (10ms/div).
- Page 5 ELECTRICAL CHARACTERISTICS CURVES Figure 7: Output voltage response to step-change in load current (75%-50% of Io, max; di/dt = 1A/µs). Load cap: 470µF aluminum ,10uF Low ESR capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div), Bottom Trace: Iout (10A/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches).
- Page 6 ELECTRICAL CHARACTERISTICS CURVES Figure 10: Input Terminal Ripple Current, i current and nominal input voltage with 15µH source impedance and 220µF electrolytic capacitor (1A/div). Copper Strip Vo(+) Vo(-) Figure 12: Output voltage noise and ripple measurement test setup DS_F48SA28025_12072007 , at full rated output Figure 11: Input reflected ripple current, i source inductor at nominal input voltage and rated load current (10 mA/div)
- Page 7 ELECTRICAL CHARACTERISTICS CURVES Figure 13: Output voltage ripple at nominal input voltage and rated load current (100 mV/div). Load capacitance:470uF aluminum, 1µF ceramic capacitor and 10µFlow ESR capacitor. Bandwidth: 20 MHz. 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 8: 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 220 to 470 μF electrolytic capacitor (ESR <... -
Page 9: 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 10 FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) To increase or decrease the output voltage set point, the modules may be connected with an external resistor between the TRIM pin and either the SENSE(+) or SENSE(-). The TRIM pin should be left open if this feature is not used.
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Page 11: 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 12: Mechanical Drawing
MECHANICAL DRAWING Pin No. Name -Vin +Vin -ON/OFF +ON/OFF +Vout +Vout +Vout -Vout -Vout -Vout Pin S ecificatio Pins 3-4, 11-16 1.00mm (0.040”) diameter Pins 1-2, 6-10 2.00mm (0.0 All pins are coppe r with Ti n plating. DS_F48SA28025_12072007 Function gative input volt sitive input v oltage... -
Page 13: Part Numbering System
PART NUMBERING SYSTEM Form Input Number of Product Factor Voltage Outputs Series F- Full Brick S- Single A- Advanced MODEL LIST MODEL NAME F48SA28025PRFA 36V~75V For different remote on/off logic and pin length options, please contact Delta local sales CONTACT www.delta.com.tw/dcdc USA: Telephone:...