Delta Electronics Q48DC User's Manual
Contents
1. Delphi Series Q48DC 65W Quarter Brick Dual Output DC DC Power Modules 48V in 12 1V 2 7A Output The Delphi Series Q48DC second generation Quarter Brick 48V input positive and negative bipolar dual output and isolated DC DC converters are the latest offering from a world leader in power system and technology and manufacturing Delta Electronics Inc The Q48DC product family is the second generation in the bipolar dual output series and it provides even more cost effective solution of positive and negative bipolar output output voltage is 12 1V and up to 65 watts of power in an industry standard quarter brick package size Both output channels can be used independently 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 fully protected from abnormal input output voltage current and temperature conditions The Delphi Series converters meet all safety requirements with basic insulation PRELIMINARY DATASHEET DS Q48DC12003 03112008 FEATURES High efficiency 88 12 1V 2 7A Size 57 9mm x 36 8mm x 9 7mm 2 28 x1 45 x0 38 Industry standard pin out Fixed frequency operation Input UVLO Output OCP OVP OTP 2250V isolation No minimum load required Adjustable output voltage ISO 9001 TL 9000 ISO 14001 QS9000 OHSAS2. 13 12 11 10 OUTPUT VOLTAGE V O gt N dD K N D o 0 1 2 3 4 5 6 7 8 9 LOAD CURRENT A Figure 15 Output voltage vs load current showing typical current limit curves and converter shutdown points DS Q48DC12003 03112008 DES Mainzsdk t Figure 14 Output voltage ripple at nominal input voltage Vin 48V and rated load current lo1 lo2 2 7A 20 mV div Load capacitance 1uF ceramic capacitor and 10uF tantalum capacitor Bandwidth 20 MHz See Figure 13 Scope measurement should be made using a BNC cable length short than 20 inch Position the load between 51 mm and 76 mm 2inch and 3 inch from the module 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 uH 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 addressi
3. 0 9 0 7 and 0 5 25 30 35 40 45 50 55 60 65 70 75 INPUT VOLTAGE V Figure 3 Typical input characteristics at room temperature lo full load DS Q48DC12003 03112008 x 3 ELECTRICAL CHARACTERISTICS CURVES DES Mainz iM t 1 i i i i DES Mainz iM s 1 Figure 4 Turn on transient at zero load current 10ms div Figure 5 Turn on transient at full rated load current resistive Vin 48V Top Trace Vout 5V div Bottom Trace ON OFF input load 10 ms div Vin 48V Top Trace Vout 5V div Bottom 5V div Trace ON OFF input 5V div DEX Mainzili gt gt 1 E E i i 244 Mainz iMh gt gt Figure 6 Turn on transient at zero load current 10ms div Figure 7 Turn on transient at full rated load current resistive Vin 48V Top Trace Vout 5V div Bottom Trace Vin input load 10 ms div Vin 48V Top Trace Vout 5V div Bottom 50V div Trace Vin input 50V div DS Q48DC12003 03112008 wer r s E sa i ELECTRICAL CHARACTERISTICS CURVES DER Hainsd k P Figure 8 Output voltage response to step change in load current lout1 7596 5096 7596 of lo max di dt 0 1A us 200uS DIV Vin 48V Load cap 10uF tantalum capacitor and 1uF ceramic capacitor Top trace Vout 100mV div Bottom trace lout 1A div Scope measurement should be made using a BNC cable length short than 20 inch Position the load between 51 mm and 76 mm 2inch and 3 inch from the modu
4. 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 is constantly kept at 6 35mm 0 25 Thermal Derating Heat can be removed by increasing airflow over the module 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 be affected FACING PWB PWB MODULE AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE 50 8 2 0 12 7 0 5 Note Wind Tunnel Test Setup Figure Dimensions are in millimeters and Inches Figu
5. 18001 certified manufacturing facility UL cUL 60950 1 US amp Canada and TUV EN60950 1 pending OPTIONS Positive On Off logic Output OVP hiccup available APPLICATIONS Telecom DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial Test Equipment Delta Electronics Inc j TECHNICAL SPECIFICATIONS T 25 C airflow rate 300 LFM Vin 48Vdc nominal Vout unless otherwise noted PARAMETER NOTES and CONDITIONS Q48DC12003NR A Min Typ Max Units ABSOLUTE MAXIMUM RATINGS OUTPUT CHARACTERISTICS Input Voltage Continuous 80 Vdc Transient 100ms 100 Vdc Operating Temperature Refer to Figure 20 for measuring point 40 124 C Storage Temperature 55 125 eC Input Output Isolation Voltage 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 48 75 Vdc Input Under Voltage Lockout Turn On Voltage Threshold 32 33 5 35 Vdc Turn Off Voltage Threshold 29 30 5 32 Vdc Lockout Hysteresis Voltage 2 3 4 Vdc Maximum Input Current 100 Load 36Vin 2 4 A No Load Input Current 50 mA Off Converter Input Current 10 mA Inrush Current I t 1 A s Input Reflected Ripple Current P P thru 12uH inductor 5Hz to 20MHz 20 mA Input Voltage Ripple Rejection 120Hz 66 dB DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V 10pyF Tan amp 1uF Ceramic load cap 0 1
6. A us Output Voltage Set Point Vin 48V lozlo Max Tc 25 C Vout 1 2 11 98 12 10 112 22 V Output Voltage Regulation Over Load lo1 lo2 lo min to lo max Vout 1 2 20 180 mV Over Line Vin 36V to 75V lo1 lo2 full load Vout 1 2 20 120 mV Cross Regulation lo1 lo2 2096 lo max 360 mV Over Temperature Tc 40 C to 129 C lo1 lo2 lo min to lo max 120 mV Total Output Voltage Range Over all load line and temperature 11 74 12 46 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak to Peak lo1 lo2 Full Load 1uF ceramic 10uFtantalum Vout 1 2 40 80 mV RMS lo1 lo2 Full Load 1uF ceramic 10uF tantalum Vout 1 2 10 30 mV Operating Output Current Range Vout 1 2 0 2 A Output DC Current Limit Inception lout 1 lout 2 7 1 9 A EFFICIENCY Positive Step Change in Output Current Uo o OM u lo max a ui us mV o 75 lo max Vout 2 400 600 Negative Step Change in Output Current Jouta or A Venen Hon 2 a mV o 50 lo max Vout 2 400 600 Cross dynamic 120 360 mV Settling Time within 1 Vout nominal 100 us Turn On Transient Delay Time From On Off Control 2 ms Delay Time From Input 2 ms Start up Time From On Off Control 20 30 ms Start up Time From Input 20 30 ms Maximum Output Capacitance Full load 5 overshoot of Vout at startup 5000 UF 100 Load lout1 lout2 full load 2 6096 Load lout1 lout2 60 of full load 86 5 Input to Output 1 m
7. TURES 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 Vo or Vo The TRIM pin should be left open if this feature is not used ISsindown Figure 17 Circuit configuration for trim down decrease output voltage If the external resistor is connected between the TRIM and Vo pins the output voltage set point decreases Fig 17 The external resistor value required to obtain a percentage of output voltage change is defined as Rtrim down 2 9 46 ko Ex When Trim down 25 12 1Vx0 75 9 08V Rtrim down 2 9 46 K0 20 5 KQ Rtrim up Figure 18 Circuit configuration for trim up increase output voltage DS Q48DC12003 03112008 If the external resistor is connected between the TRIM and Rtn the output voltage set point increases Fig 18 The external resistor value required to obtain a percentage output voltage change is defined as Rtrim up Z ko Ex When Trim up 5 12 1Vx1 05212 71V Rtrim up 39 AKO When using 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 that the maximum output power of the module remains at or below the maximum rated power 10 THERMAL CONSIDERATIONS
8. USTOMER BOARD I I EE o 2E M 1 00 0 040 DIA E e SOLDER PLATED COPPER O e o bic 7X pi S WITH 2 0 0 08 SHOULDER o SIDE LN NOTES DIMENSIONS ARE IN MILLIMETERS AND INCHES TOLERANCES ame dim m X XX in 0 02 in X XXmmzt0 25mm X XXX in 0 010 in ON O NEGATIVE LOGI Name Function Vin Positive input voltage ON OFF Remote ON OFF Vin Negative input voltage Vout Negative output voltage GND Ground Trim Output voltage trim Vout Positive output voltage DS Q48DC12003 03112008 C ENABLE OPEN O Vin z ON Es MR PART NUMBERING SYSTEM OR A _ Q 48 D C 10 08 N _ Type Voltage Outputs Series Voltage Current Logic Length Q Quarter 48V D Dual C 2nd 120 12 1V 03 2 7A N Negative F RoHS 6 6 A Standard Brick Output generation of P Positive Lead Free Functions bipolar dual output MODEL LIST MODEL NAME OUTPUT EFF 0 100 LOAD 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
9. 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 and latch off The over voltage latch is reset by either cycling the input power or by toggling the on off signal for one second Over Temperature Protection The over temperature protection consists of circuitry that provides protection from thermal damage If the temperature exceeds the over temperature threshold the module will shut down The module will try to restart after shutdown If the over temperature condition still exists during restart the module will shut down again This restart trial will continue until the temperature is within specification 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 For negative logic if the remote on off feature is not used please short the on off pin to Vi For positive logic if the remote on off feature is not used please leave the on off pin to floating DS Q48DC12003 03112008 u 9 ies FEA
10. inute 2250 Vdc Isolation Resistance 10 a Isolation Capacitance FEATURE CHARACTERISTICS 1500 Switching Frequency a e eee I ja e 880 KZ ON OFF Control Logic Low Module ON Logic Low Von off at lon off 1 0mA 0 7 1 8 V Logic High Von off at lon off 0 0 pA 3 5 12 V ON OFF Current lon off at Von off 0 0V 1 mA Leakage Current Logic High Von off 15V 300 uA Output Voltage Trim Range Pout lt max rated power 65W 17 5 lout lt max 120 rated lout 25 17 Output Over Voltage Protection Over full temp range of nominal Vout 124 130 150 GENERAL SPECIFICATIONS MTBF lo 80 of lo max Ta 40 C TBD M hours Weight 31 grams Over Temperature Shutdown Refer to Figure 20 for measuring point 129 C DS Q48DC12003 03112008 Ea MES ELECTRICAL CHARACTERISTICS CURVES 90 10 2 87 9 4 84 86 z 81 Z 6 7 8 pes se 78 70 O 75 D z gt a 6 2 O fh LLI O 66 A 46 63 3 8 60 3 0 0 3 0 7 1 1 1 5 1 9 2 3 2 7 0 3 0 7 1 1 1 5 1 9 23 27 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 lo1 102 nominal and maximum input voltage at 25 C lo1zlo2 2 5 2 3 24d ud 1 9 1 7 1 5 13 E INPUT CURRENT Aj 1 1
11. is available 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 DS Q48DC12003 03112008 xm 43
12. le DES HMainzd n0k 25 Figure 9 Output voltage response to step change in load current lout2 75 50 75 of lo max di dt 0 1A us 200uS DIV Vin 48V Load cap 10uF tantalum capacitor and 1uF ceramic capacitor Top trace Vout 100mV div Bottom trace lout 1A div Scope measurement should be made using a BNC cable length short than 20 inch Position the load between 51 mm and 76 mm 2inch and 3 inch from the module Ea MES ELECTRICAL CHARACTERISTICS CURVES DEE amp Mainzdk 55 i ic r r 2 r9 Wie 33uF ESREOS 4 B20 100KHz Cae OF ESReOd n B20 100KHz Figure 10 Test set up diagram showing measurement points Figure 11 Input Terminal Ripple Current i at full rated output for Input Terminal Ripple Current and Input Reflected Ripple current and nominal input voltage with 12uH source impedance Current and 33uF electrolytic capacitor 500 mA div Note Measured input reflected ripple current with a simulated source Inductance Lrtesr of 12 uH Capacitor Cs offset possible battery impedance Measure current as shown above DES Maimdk s Figure 12 Input reflected ripple current is through a 12uH source inductor at nominal input voltage and rated load current 20 mA div DS Q48DC12003 03112008 e 6 Ea MER ELECTRICAL CHARACTERISTICS CURVES RESISTIV LOAD Figure 13 Output voltage noise and ripple measurement test setup
13. ng 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 i e UL60950 CAN CSA C22 2 No 60950 00 and EN60950 2000 and IEC60950 1999 if the system in which the power module is to be used must meet safety agency requirements When the input source is 60 Vdc 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 following must be met The input source must be insulate from any hazardous voltage including the ac mains with reinforced insulation One Vi pin and one Vo pin are grounder or all the input and output pins are kept floating The input terminals of the module are not operator accessible If the metal baseplate is grounded the output must be also grounded 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 DS Q48DC12003 03112008 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 The power module has extra low voltage ELV outputs when all i
14. nputs are ELV 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 7A 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 cleaning procedures please contact Delta s technical support team c NN 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 Figure 16 Remote on off implementation Over
15. re 19 Wind Tunnel Test Setup DS Q48DC12003 03112008 THERMAL CURVES Je pepo da s T n c 7 lt i l j Figure 20 Temperature measurement location The allowed maximum hot spot temperature is defined at 124 C Q48DC12003 Standard Output Current vs Ambient Temperature and Air Velocity Output Current A Vin 48V Transverse Orientation Natural Convection 100LFM 200LFM 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature C Figure 21 Output current vs ambient temperature and air velocity Vn 46V Transverse Orientation 11 Pin No NOOR WD gt 57 9 2 28 3 6 0 14 50 80 2 000 ecce R1 0 0 04 a AX A i 1 4 Vin Vout Y i ut Trim6 9 i 2 ON OFF Y 00 GND5 Bs i 9 Vin Vout4 9 i i T PUN C lt C C e O E M nee PEU CO LO jm N IAE ed he e CO DI HI O 0 Gy See s TET me p a Tej 2 nja nf olo olele TOP HW i y p 4 i lt ox A C
Download Pdf Manuals
Related Search