Delta Electronics H48SA12025 Datasheet Download Page 1

FEATURES  

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High efficiency: 93.2% @ 12V/ 25A  

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Standard footprint: 58.4 x 61.0 x 11.2 mm

(2.30” x2.40”x0.44”) 

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Industry standard pin out 

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Single board construction 

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 Fixed 

frequency 

operation 

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 2250V 

Isolation 

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 Basic 

insulation 

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Monotonic startup into normal and pre-

bias loads 

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Fully protected: input UVLO, output OVP, 

OCP, OTP 

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No minimum load required 

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Wide output trim range: -20%, +10% 

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ISO 9001, TL 9000, ISO 14001, QS 

9000, OHSAS 18001 certified 

manufacturing facility 

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UL/cUL 60950-1 (US & Canada) 

Recognized, and TUV (EN60950-1) 

Certified 

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CE mark meets 73/23/EEC and 

93/68/EEC directives 

OPTIONS 

 

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 Positive 

on/off

 

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Heatspreader available for extended 

operation

 

APPLICATIONS 

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Telecom / DataCom 

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 Wireless 

Networks 

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 Optical 

Network 

Equipment 

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Server and Data Storage

 

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Industrial / Test Equipment

 

 

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.  Typical 
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

 

 

Summary of Contents for H48SA12025

Page 1: ...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 Electro...

Page 2: ...mV Operating Output Current Range Full input range 0 25 A Operating Output Power Range Full input range 0 300 W Output DC Current Protection Full input range 110 150 DYNAMIC CHARACTERISTICS Output Vol...

Page 3: ...age at 25 C Vout 12V Figure 2 Power dissipation vs load current for minimum nominal and maximum input voltage at 25 C Vout 12V 60 65 70 75 80 85 90 95 5 10 15 20 25 OUTPUT CURRENT A EFFICIENCY 36Vin 7...

Page 4: ...ge for minimum nominal and maximum input voltage at 25 C Vout 13 2V Figure 6 Power dissipation vs output voltage for minimum nominal and maximum input voltage at 25 C Vout 13 2V 0 2 4 6 8 10 12 30 0 3...

Page 5: ...ESR 0 2 ohm 25oC 100KHz Cs 220uF Vin Vin is ic 100uF ESR 0 2 ohm 25oC 100KHz Cs 220uF Figure 11 Output voltage response to step change in load current 200mV div 1ms div 75 50 75 of Io max di dt 1A s L...

Page 6: ...STIVE LOAD Figure 15 Output voltage noise and ripple measurement test setup Figure 16 Output voltage ripple at nominal input voltage and rated load current 50mV div 2us div Load capacitance 1 F cerami...

Page 7: ...e power module meets SELV safety extra low voltage requirements If the input source is a hazardous voltage which is greater than 60 Vdc and less than or equal to 75 Vdc for the module s output to meet...

Page 8: ...o restarted Auto restart mode is default mode For latch mode the module will latch off once it shutdown The latch is reset by either cycling the input power or by toggling the on off signal for one se...

Page 9: ...th When using remote sense and trim the output voltage of the module is usually increased which increases the power output of the module with the same output current Care should be taken to ensure tha...

Page 10: ...ules are mounted The following figure shows the wind tunnel characterization setup The power module is mounted on a test PWB and is vertically positioned within the wind tunnel The space between the n...

Page 11: ...put current vs ambient temperature and air velocity Vin 48V Vout 12V Openframe Version Either Orientation H48SA12025 standard Output Current vs Ambient Temperature and Air Velocity Vin 48V Either Orie...

Page 12: ...SENSE TRIM SENSE Vout Positive input voltage Remote ON OFF Case pin Negative input voltage Negative output voltage Negative remote sense Output voltage trim Positive remote sense Positive output volta...

Page 13: ...DS_H48SA12025_05052008 MECHANICAL DRAWING WITH HEATSPREADER 13...

Page 14: ...DCDC delta corp com Europe Phone 41 31 998 53 11 Fax 41 31 998 53 53 Email DCDC delta es com Asia the rest of world Telephone 886 3 4526107 ext 6220 Fax 886 3 4513485 Email DCDC delta com tw WARRANTY...

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