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Delphi Series H48SA, Half Brick Family
DC/DC Power Modules: 48V in, 12V/25A out
The Delphi Series H48SA Half Brick, 48V input, single output, isolated,
open frame DC/DC converters are the latest offering from a world
leader in power systems technology and manufacturing — Delta
Electronics, Inc. This product family provides up to 300 watts of power
or up to 25A of output current in an industry standard footprint. This
product represents the next generation of design technology required
by today's leading-edge circuitry. 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.
efficiency of the 12V, 300W module is better than 93.2% and all
modules are fully protected from abnormal input/output voltage, current
and temperature conditions. The Delphi Series converters meet all
safety requirements with basic insulation. A variety of optional
heatsinks are available for extended thermal operation.
DATASHEET
DS_H48SA12025_05052008
FEATURES
OPTIONS
Typical
APPLICATIONS
1
High efficiency: 93.2% @ 12V/ 25A
Standard footprint: 58.4 x 61.0 x 11.2 mm
(2.30" x2.40"x0.44")
Industry standard pin out
Single board construction
Fixed frequency operation
2250V Isolation
Basic insulation
Monotonic startup into normal and pre-
bias loads
Fully protected: input UVLO, output OVP,
OCP, OTP
No minimum load required
Wide output trim range: -20%, +10%
ISO 9001, TL 9000, ISO 14001, QS
9000, OHSAS 18001 certified
manufacturing facility
UL/cUL 60950-1 (US & Canada)
Recognized, and TUV (EN60950-1)
Certified
CE mark meets 73/23/EEC and
93/68/EEC directives
Positive on/off
Heatspreader available for extended
operation
Telecom / DataCom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial / Test Equipment
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Related Manuals for Delta Electronics Series H48SA
Summary of Contents for Delta Electronics Series H48SA
- Page 1 Delphi Series H48SA, Half Brick Family DC/DC Power Modules: 48V in, 12V/25A out The Delphi Series H48SA Half Brick, 48V input, single output, isolated, open frame DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing — Delta Electronics, Inc.
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Page 2: Technical Specifications
TECHNICAL SPECIFICATIONS =25°C, airflow rate=300 LFM, V =48Vdc, nominal Vout unless otherwise noted.) PARAMETER ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Transient (100ms) Operating Device Temperature(Openframe) Operating Device Temperature(Heatspreader) 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... - Page 3 ELECTRICAL CHARACTERISTICS CURVES 36Vin OUTPUT CURRENT (A) Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C. Vout=12V. 36Vin OUTPUT CURRENT (A) Figure 3: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C. Vout=9.6V. DS_H48SA12025_05052008 75Vin 48Vin...
- Page 4 ELECTRICAL CHARACTERISTICS CURVES 36Vin OUTPUT CURRENT (A) Figure 5: Efficiency vs. output voltage for minimum, nominal, and maximum input voltage at 25°C, Vout= 30.0 31.3 33.6 35.0 40.0 45.0 Output Current (A) Figure 7: Typical input characteristics at room temperature. DS_H48SA12025_05052008 75Vin 48Vin...
- Page 5 ELECTRICAL CHARACTERISTICS CURVES Figure 9: Turn-on transient at zero load current, 4 ms/div; Top Trace: Vout, 5V/div; Bottom Trace: ON/OFF input, 5V/div. Figure 11: Output voltage response to step-change in load current, 200mV/div, 1ms/div. 75%-50%-75% of Io, max, di/dt = 1A/µs. Load cap: 5000µF tantalum capacitor and 1µF ceramic capacitor.
- Page 6 ELECTRICAL CHARACTERISTICS CURVES Figure 13: Input Terminal Ripple Current, i voltage and rated load current with 12µH source impedance and 100µF electrolytic capacitor, 500 mA/div, 2us/div. Copper Strip Vo(+) Vo(-) Figure 15: Output voltage noise and ripple measurement test setup Output Current (A) Figure 17: Output voltage vs.
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Page 7: 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 33 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. If the output current exceeds the OCP set point, the modules will automatically shut down, and enter hiccup mode or latch mode, which is optional. For hiccup mode, the module will try to restart after shutdown. - Page 9 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 10: 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 11: Thermal Curves
THERMAL CURVES Figure 24: Temperature measurement location for openframe version - The allowed maximum hot spot temperature is defined at 122 ℃ Figure 25: Temperature measurement location for heatspreader version - The allowed maximum hot spot temperature is defined at 109 ℃... - Page 12 MECHANICAL DRAWING (WITHOUT HEATSPREADER) Pin No. Name +Vin ON/OFF CASE -Vin -Vout -SENSE TRIM +SENSE +Vout Notes: Pins 1-4, 6-8 are 1.00mm (0.040”) diameter Pins 5 and 9 are 2.00mm (0.079”) diameter All pins are copper with Tin plating. DS_H48SA12025_05052008 Function Positive input voltage Remote ON/OFF...
- Page 13 MECHANICAL DRAWING (WITH HEATSPREADER) DS_H48SA12025_05052008...
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Page 14: Part Numbering System
PART NUMBERING SYSTEM Form Input Number of Factor Voltage Outputs H - Half- S- Single Brick MODEL LIST Part Number H48SA12025NNFA 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 WARRANTY Delta offers a two (2) year limited warranty.