Delta Electronics S36SS User's Manual
Contents
1. be affected FACING PWB WB MODULE AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE 50 8 2 07 i AR FLOW ma o le 10 0 4 Note Wind Tunnel Test Setup Figure Dimensions are in millimeters and Inches Figure 15 Wind tunnel test setup THERMAL CURVES S36SS3R304 Standard Output Current vs Ambient Temperature and Air Velocity go Cvtput Current A Vin 60V 24mm Ta ee EN 0 94 Leenen Set eS cc ee LE ra c EN Natural Nm E 35 GConvectionzz gt c A fgg BB BH rc HA HE HE E N am n 80 ore ar ho ci 25 L 200LFM z2 af SPEC SABRL Pr d p LABEL n pm Li io acc ai EM AE Ns eee Keen Hr m 6 TS L 4 MS Meese ee NES HEE EE I ET kn H 10b B80bRM oF E a E EEE E LH He KI I3 E kt En Aud IL EH m f i i i p me i fi il i i a 40 45 50 55 60 65 70 75 80 85 Y 4 Ambient Temperature C Figure 16 Temperature measurement location Pin locations Figure 19 Output current vs ambient temperature and air are for reference only velocity Vin 60V The allowed maximum hot spot temperature is defined at 105 C S36SS3R304 Standard Output Current vs Ambient Temperature and Air Velocity o Quteut Current A2. FEATURES High efficiency 81 3 3V 4 5A Standard footprint Surface mountable Industry standard pin out Size 45 5mm x 28 0mm x 12 2mm 1 79 x 1 10 x 0 48 Fixed frequency operation Input UVLO OVLO Output OCP OVP No minimum load required Wide Input voltage range 18V 60V ISO 9001 TL 9000 ISO 14001 QS9000 OHSAS18001 certified manufacturing facility UL cUL 60950 US amp Canada recognized and TUV EN60950 certified CE mark meets 73 23 EEC and 93 68 EEC directive Delphi Series S36SS 15W Family m DC DC Power Modules 18Vin to 60Vin 3 3V 4 5A out OPTIONS Positive on off logic gg The Delphi Series S36SS surface mountable wide ranging 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 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 APPLICATIONS Telecom DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial Test E
3. TYP 10 00 0 394 30 00 1 181 BOTTOM VIEW pom mE i l i J i p LI Lit 5 Te 4 0 100 Ox x GEDE SIDE VIEW Fe S Pin No Name Function 1 Vout Positive output voltage 2 Vout Negative output voltage 3 Trim Output voltage trim 4 NC No Connection 5 NC No Connection 6 NC No Connection 7 NC No Connection 8 ON OFF ON OFF Logic 9 NC No Connection 10 NC No Connection 11 Vin Negative input voltage 12 Vin Positive input voltage X Xmm 0 5mm X XX in 0 02 in X XXmmzz0 25mm X XXX in 0 010 in PART NUMBERING SYSTEM S 36 S S 33 04 N R F A Form Input Number of Product Output Output ON OFF Pin Type Option E Factor Voltage Outputs Series Voltage Current Logic Code S Small 36 18V 60V S Single S SMD 3R3 3 3V 04 4 5A N Negative R SMD Pin Space RoHS 5 6 A Standard Power P Positive Function MODEL LIST MODEL NAME INPUT OUTPUT EFF 100 LOAD S36SS3R304NRFA 18V 60V 1 3A 3 3V 4 5A 81 CONTACT www delta com tw dcdc USA Europe Asia amp the rest of world Telephone Phone 41 31 998 53 11 Telephone 886 3 4526107 ext 6220 East Coast 888 335 8201 Fax 41 31 998 53 53 Fax 886 3 4513485 West Coast 888 335 8208 Email DCDC delta es com Email DCDC delta com tw Fax 978 656 3964 Email DCDC delta corp com WARRANTY Delta offers a two 2 year limited warranty Complete warranty information is listed on our web site or is availabl
4. Vin 24V 45 4b Fore mere ees nj ed I EILel ocoeeceucdccBccdcclem TE Se Sy She Se SS SS SR SS 25 P 20 Sart em Eme cte noue aS 15 LE HO EE sois sei oes e pr t 0 0 40 45 50 55 60 65 70 75 Albi Temperat amp Figure 17 Output current vs ambient temperature and air velocity Vin 24V S36SS3R304 Standard Output Current vs Ambient Temperature and Air Velocity Output Current A Vin 48V 45 io sss aBb c 30 f XEM 26S eec a Ss 20 40 45 50 55 60 65 70 75 jen 85 Ambient Temperature C Figure 18 Output current vs ambient temperature and air velocity Vin 48V MECHANICAL DRAWING 29 60 1 165 12 11 10 9 8 7 ean T LO fe S oo N zi 1 gos 4 5 6 N 3 30 0 150 5 00 0 197 5 00 0 197 __ 30 00 1 181 RECOMMENDED PWB LAYOUT NOTES DIMENSIONS ARE IN MILLIMETERS AND INCHES TOLERANCES 45 5 1 797 x diat ut Tm xc E Ne AM Lm io Ce de Ce o ME 2 Ma 1 LD 2 i PE gover xe AS Te MI 2 50 0 098 12X 5 00 0 197
5. 5Hz to 20MHz bandwidth Peak to Peak Full Load 1yF ceramic 10pF tantalum 60 100 mV RMS Full Load 1uF ceramic 10pF tantalum 15 25 mV Operating Output Current Range 0 4 5 A Output DC Current Limit Inception Output Voltage 1096 Low 5 6 8 A Output Voltage Current Transient 48V 10pF Tan amp 1uF Ceramic load cap 0 1A ys Positive Step Change in Output Current 50 lo max to 100 lo max 65 100 mV Negative Step Change in Output Current 10096 lo max to 5096 lo max 65 100 mV Settling Time to 196 of Final value 600 us Turn On Transient Start Up Time From On Off Control 6 10 ms Start Up Time From Input 5 10 ms Maximum Output Capacitance Full load 596 overshoot of Vout at startup 2000 uF EFFICIENCY 100 Load 78 81 Isolation Voltage 1500 V Isolation Resistance 100 MO Isolation Capacitance 500 pF Switching Frequency 280 kHz ON OFF Control Logic Low Module ON Logic Low Von off at lon off 1 0mA 0 ox V Logic High Von off at lon off 0 0 HA 2 15 V ON OFF Current lon off at Von off 0 0V 1 mA Leakage Current Logic High Von off 15V 50 uA Output Voltage Trim Range Across Trim Pin amp Vo or Vo Pout lt max rated 10 10 Output Over Voltage Protection Hiccup Over full temp range of nominal Vout 115 125 140 GENERAL SPECIFICATIONS Calculated MTBF 10 8096 of lo max Tc 40 C 4 5 M hours Weight Open Frame 12 5 grams B S z
6. ad current showing typical current limit curves and converter shutdown points i 7 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 pH we advise adding a 10 to 100 uF electrolytic capacitor ESR 0 7 O at 100 kHz mounted close to the input of the module to improve the stability Layout and EMC Considerations Delta 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 technical support team An external input filter module is available for easier EMC compliance design Application notes to assist designers in addressing these issues are pending release Safety Considerations The power module must be installed in compliance with the spacing and separation requirements of the end user s safety agency standard if the system in which the power module is to be used must meet safety agency requirements When the input source is 60Vdc or below the 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 SELV requirements all of the
7. amp E a lt B w o 5 m o m a a 18Vin o I a 18Vin EA MTM a 24Vin 10 gE oe een e 48Vin a en Atke SE c 5 60Vin d NN CER RS on NER I I I I I I 0 0 1 5 2 2 5 3 3 5 4 4 5 0 5 1 1 5 2 2 5 3 3 5 4 4 5 OUTPUT CURRENT A OUTPUT CURRENT A Figure 1 Efficiency vs load current for minimum nominal and Figure 2 Power dissipation vs load current for minimum maximum input voltage at 25 C nominal and maximum input voltage at 25 C NORMECSUDKS s 2ms div Stopped q Zms div CHIFIV CH2 2V i 1 00 DC 11 DC 11 0 80 0 60 INPUT CURRENT A 0 40 0 20 INPUT VOLTAGE V Figure 3 Typical input characteristics at room temperature Figure 4 Turn on transient at full rated load current resistive load 2 ms div Top Trace Vout 1V div Bottom Trace ON OFF Control 2V div ES mS ELECTRICAL CHARACTERISTICS CURVES NORM S DKS s 2ms div NORM 200k5 s Sms div Stopped q 2ms div Stopped q 5ms div CHI IV CHEN i CHIESOMY i CH4 10mY DCH pom ACH i DC 11 Menon cree E MN eaten oe ene m um Oe eee Figure5 Turn on transient at zero load current 2 ms div Top Figure 6 Output voltage response to step change in load Trace Vout 1V div Bottom Trace ON OFF Control 2V div current 50 100 50 of lo max di dt 0 1A us Load cap 10uF 100 mQESR tantalum capacitor and 1
8. e upon request from Delta Information furnished by Delta is believed to be accurate and reliable However no responsibility is assumed by Delta for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or patent rights of Delta Delta reserves the right to revise these specifications at any time without notice
9. et point decreases The external resistor value required to obtain a percentage of output voltage change Vo is defined as 20 373 32 673 AVo 3 3AVo 0 018 Rtrim down 10 2 KQ Ex When trim down 10 3 3V X 0 9 2 97V _ 20 373 32 637 x 0 1 3 3x0 1 0 018 Rtrim down 10 2 38 96 KQ Figure 13 Circuit configuration for trim up increase output voltage If the external resistor is connected between the TRIM and Vo the output voltage set point increases The external resistor value required to obtain a percentage output voltage change Vo is defined as 12 2636 3 3AVo 0 018 Rtrim up 1 0 2 KQ Ex When trim up 10 3 3V X 1 1 3 63V 12 2636 3 3x0 1 0 018 Rtrim up 10 2 29 11 KC Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power Remote ON OFF The remote on off feature on the module can be either negative or positive logic Negative logic turns the module on during a logic low and off during a logic high Positive logic turns the modules on during a logic high and off during a logic low Remote on off can be controlled by an external switch between the on off terminal and the Vi terminal The switch can be an open collector or open drain If the remote on off feature is not used please short the on off pin to Vi for negative logic and let the pin open for posi
10. following must be met The input source must be insulated from any hazardous voltages including the ac mains with reinforced insulation One Vi pin and one Vo pin are grounded or all the input and output pins are kept floating The input terminals of the module are not operator accessible A SELV reliability test is conducted on the system where the module is used to ensure that under a single fault hazardous voltage does not appear at the module s output Do not ground one of the input pins without grounding one of the output pins This connection may allow a non SELV voltage to appear between the output pin and ground This power module is not internally fused To achieve optimum safety and system protection an input line fuse is highly recommended The safety agencies require a normal blow fuse with 3A maximum rating to be installed in the ungrounded lead A lower rated fuse can be used based on the maximum inrush transient energy and maximum input current Soldering and Cleaning Considerations Post solder cleaning is usually the final board assembly process before the board or system undergoes electrical testing Inadequate cleaning and or drying may lower the reliability of a power module and severely affect the finished circuit board assembly test Adequate cleaning and or drying is especially important for un encapsulated and or open frame type power modules For assistance on appropriate soldering and clean
11. ing procedures please contact Delta s technical support team NM NEA a 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 If the overload condition still exists the module will shut down again This restart trial will continue until the overload condition is corrected Over Voltage Protection The modules include an internal output over voltage protection circuit which monitors the voltage on the output terminals If this voltage exceeds the over voltage set point the module will shut down Hiccup mode The modules will try to restart after shutdown If the fault condition still exists the module will shut down again This restart trial will continue until the fault condition is corrected 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 Vo or Vo The TRIM pin should be left open if this feature is not used Ruim down Figure 12 Circuit configuration for trim down decrease output voltage If the external resistor is connected between the TRIM and Vo pins the output voltage s
12. quipment DATASHEET C OS2008 A NELTA Delta Electronics Inc TECHNICAL SPECIFICATIONS Ta 25 C airflow rate 300 LFM V 48Vdc nominal Vout unless otherwise noted PARAMETER NOTES and CONDITIONS S36SS3R304NRFA Min Typ Max Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 70 Vdc Transient 100ms 100ms 100 Vdc Operating Temperature Refer to Figure 16 for the measuring point 40 105 C Storage Temperature 55 125 C Input Output Isolation Voltage 1 minute 1500 Vdc Operating Input Voltage 18 60 V Input Under Voltage Lockout Turn On Voltage Threshold 16 17 18 V Turn Off Voltage Threshold 15 16 17 V Lockout Hysteresis Voltage 0 5 1 5 25 V Input Over Voltage Lockout Turn Off Voltage Threshold 64 V Turn on Voltage Threshold 63 V Maximum Input Current 10096 Load 18Vin 1 3 A No Load Input Current 30 mA Off Converter Input Current 4 mA Inrush Current I t 1 A s Input Reflected Ripple Current P P thru 12uH inductor 5Hz to 20MHz 5 mA Input Voltage Ripple Rejection 120 Hz 55 dB Output Voltage Set Point Vin 48V lo 50 lo max Tc 25 C 3 23 3 30 3 97 V Output Voltage Regulation Over Load lo lo min to lo max E 15 mV Over Line Vin 18V to 60V 2 7 mV Over Temperature Tc 40 C to 100 C 100 300 ppm C Total Output Voltage Range Over sample load line and temperature 3 16 3 44 V Output Voltage Ripple and Noise
13. tive logic V Vo ON OFF Trim e Vi Vo e Figure 14 Circuit configuration for remote ON OFF I A 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 Thermal Testing Setup Delta s DC DC power modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment This type of equipment commonly uses vertically mounted circuit cards in cabinet racks in which the power modules 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 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 The module s hot spot temperature is defined at 105 C To enhance system reliability the power module should always be operated below the maximum operating temperature If the temperature exceeds the maximum module temperature reliability of the unit may
14. uF ceramic capacitor Top Trace Vout 50mV div Bottom Trace lout 2A div NORM 100MS s 2us div Stopped q 2us div 7 B CHIETOMY Dc 1 1 Vi 12uH Cs 68uF 100V 68uF 100V ESR 0 30 ESR 0 3 20 C100KHz 20 C 100KHz Vi Figure 7 Test set up diagram showing measurement points for Input Reflected Ripple Current Figure 8 Note Measured input reflected ripple current with a simulated source Inductance LrgsT of 12 uH Capacitor Cs offset possible battery impedance Figure 8 Input Reflected Ripple Current is at full rated output current and nominal input voltage with 12uH source impedance and 68uF electrolytic capacitor 2 mA div IC 4 ELECTRICAL CHARACTERISTICS CURVES NORM 20UMS s 2us div Stopped 2us div pal CHI 20mv AC 11 Copper Strip SCOPE RESISTIVE 9 LOAD Figure 9 Output voltage noise and ripple measurement test Figure 10 Output voltage ripple at nominal input voltage and setup Scope measurement should be made using a BNC rated load current 20 mV div Load capacitance 1uF ceramic cable length shorter than 20 inches Position the load capacitor and 10uF tantalum capacitor Bandwidth 20 MHz between 51 mm to 76 mm 2 inches to 3 inches from the module 3 5 e eo u o OUTPUT VOLTAGE V N o 1 5 1 0 0 5 Vin 48V 0 0 0 0 2 0 4 0 6 0 8 0 LOAD CURRENT A Figure 11 Output voltage vs lo
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