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DATASHEET 
DS_S48SA1R812_06012006 

 

Delta Electronics, Inc. 

Delphi Series S48SA, 33W Family 
DC/DC Power Modules: 48V in, 1.8V/12A out

 

 

The Delphi Series S48SA, 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 33 watts of power
or up to 12A of output current (for output voltage 1.8V or below). 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.

 

 

APPLICATIONS  

 

Telecom/DataCom 

 

Wireless Networks 

 

Optical Network Equipment 

 

Server and Data Storage

 

 

Industrial/Test Equipment

 

OPTIONS 

 

Positive on/off logic

 

 

Through hole version

 

 

FEATURES  

 

High efficiency: 88.5% @ 1.8V/ 12A 

 

Size: 47.2mm x 29.5mm x 8.35mm  

(1.86" x 1.16" x 0.33") 

 

Low profile: 0.33"  

 

Industry standard footprint and pin out  

 

Surface mountable 

 

Fixed frequency operation 

 

Input UVLO, Output OCP, OVP 

 

No minimum load required 

 

2:1 input voltage range 

 

Basic insulation 

 

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

 

 

Summary of Contents for 33W Family

Page 1: ...as extremely high reliability under highly stressful operating conditions All models are protected from abnormal input output voltage and current conditions APPLICATIONS Telecom DataCom Wireless Netw...

Page 2: ...and Noise 5Hz to 20MHz bandwidth Peak to Peak Full Load 1 F ceramic 10 F tantalum 30 75 mV RMS Full Load 1 F ceramic 10 F tantalum 5 20 mV Operating Output Current Range 0 12 A Output DC Current Limi...

Page 3: ...Efficiency vs load current for minimum nominal and maximum input voltage at 25 C Figure 2 Power dissipation vs load current for minimum nominal and maximum input voltage at 25 C 0 0 0 1 0 2 0 3 0 4 0...

Page 4: ...ceramic capacitor Top Trace Vout 50mV div Bottom Trace Iout 5A div Figure 7 Output voltage response to step change in load current 75 50 of Io max di dt 0 1A s Load cap 10 F 100 m ESR tantalum capacit...

Page 5: ...urement 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 0 0 0 3 0 6 0 9 1 2 1 5 1 8 2 1 0 0 2 0 4 0 6 0 8 0...

Page 6: ...elta s DC DC power modules are designed to operate in a wide variety of systems and applications For design assistance with EMC compliance and related PWB layout issues please contact Delta s technica...

Page 7: ...will automatically shut down hiccup mode The modules will try to restart after shutdown If the overload condition still exists the module will shut down again This restart trial will continue until th...

Page 8: ...n if this feature is not used Figure 15 Circuit configuration for trim down decrease output the external resistor is connected between the TRIM voltage If and Vo pins the output voltage set point decr...

Page 9: ...n the neighboring PWB and the top of the power module or a heat sink is 6 35mm 0 25 Thermal Derating Heat can be removed by increasing airflow over the module Figure 18 and 19 show maximum output is a...

Page 10: ...DS_S48SA1R812_06012006 10 PICK AND PLACE LOCATION SURFACE MOUNT TAPE REEL RECOMMENDED PAD LAYOUT SMD...

Page 11: ...the pin Vout joint 11 LEADED Sn Pb PROCESS RECOMMEND TEMP PROFILE Time sec Pre heat temp 140 180 C 60 120 sec Peak temp 210 230 C 5sec Ramp up temp 0 5 3 0 C sec Temperature C 50 100 150 200 250 300...

Page 12: ...ut Positive output voltage 2 Vout Negative output voltage 6 Trim Output voltage trim 8 ON OFF ON OFF logic 11 Vin Negative input voltage 12 Vin Positive input voltage Optional Pin Name Function 4 Sens...

Page 13: ...FA 36V 75V 1 3A 2 5V 10A 88 5 S48SA3R310NRFA 36V 75V 1 3A 3 3V 10A 90 5 S48SA05006NRFA 36V 75V 1 3A 5 0V 6 6A 90 5 S48SA12003NRFB 36V 75V 1 3A 12V 3 0A 90 0 CONTACT www delta com tw dcdc USA Telephone...

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