Q36SR DELTA | Alldatasheet
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Technical content
DS_Q36SR12017_01262014
FEATURES
High efficiency: 93% @ 12V/17A Size: 58.4x36.8x11.7mm (2.30”x1.45”x0.46”) w/o heat-spreader 58.4x36.8x12.7mm (2.30”x1.45”x0.50”) with heat-spreader Industry standard footprint and pin out Fixed frequency operation Input UVLO OTP and OVP Output OCP hiccup mode Output voltage trim down : -10% Output voltage trim up: +10% at Vin>20V Monotonic startup into normal and pre-biased loads 1500V isolation and basic insulation No minimum load required No negative current during power or enable on/off ISO 9001, TL 9000, ISO 14001, QS 9000, OHSAS18001 certified manufacturing facility UL/cUL 60950-1 (US & Canada)
APPLICATIONS
Optical Transport Data Networking Communications Servers OPTIONS Negative or positive logic remote On/Off Through hole with heat-spreader Delphi Series Q36SR, Quarter Brick 204W DC/DC Power Modules: 18V~75Vin,12V, 17Aout The Delphi Series Q36SR, Quarter Brick, 18V~75Vin input, single output, isolated DC/DC converters, are the latest offering from a world leader in power systems technology and manufacturing ― Delta Electronics, Inc. With c reative 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/17A module is greater than 93%.
Q36SR12017_01262014 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) Note1: For applications with higher output capacitive load, please contact Delta Note2: Trim down range -10% for 18Vin ~75Vin, Trim up range +10% for 20Vin ~ 75Vin. PARAMETER NOTES and CONDITIONS Q36SR12017(Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Vdc Continuous 0 80 Vdc Transient (100ms) 100ms 100 Vdc Operating Ambient Temperature -40 85 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 1500 Vdc INPUT CHARACTERISTICS Operating Input Voltage 18 48 75 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 16 17 18 Vdc Turn-Off Voltage Threshold 15 16 17 Vdc Lockout Hysteresis Voltage 0.3 1 1.8 Vdc Maximum Input Current 100% Load, 18Vin 15 A No-Load Input Current Vin=48V,Io=0A 100 mA Off Converter Input Current Vin=48V 10 mA Inrush Current (I2t) 1 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 20 mA Input Voltage Ripple Rejection 120 Hz 50 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25°C 11.82 12.00 12.18 Vdc Output Voltage Regulation Over Load Io=Io, min to Io, max ±3 ±15 mV Over Line Vin=18V to 75V ±3 ±15 mV Over Temperature Tc=-40°C to 110°C ±120 mV Total Output Voltage Range Over sample load, line and temperature 11.64 12.00 12.36 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 100 mV RMS Full Load, 1µF ceramic, 10µF tantalum mV Operating Output Current Range Vin=18V to75V 0 17 A Operating Output Current Range Output Over Current Protection(hiccup model) Output Voltage 10% Low 110 140 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient Vin=48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs Positive Step Change in Output Current 75% Io.max to 50% Io.max 400 mV Negative Step Change in Output Current 50% Io.max to 75% Io.max 400 mV Settling Time (within 1% Vout nominal) 200 µs Turn-On Transient Start-Up Time, From On/Off Control 28 mS Start-Up Time, From Input 28 mS Output Capacitance (note1) Full load; 5% overshoot of Vout at startup 0 5000 µF EFFICIENCY 100% Load Vin=24V 93.5 % 100% Load Vin=48V 93.0 % 60% Load Vin=48V 92.0 % ISOLATION CHARACTERISTICS Input to Output 1500 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1000 pF FEATURE CHARACTERISTICS Switching Frequency 260 KHz ON/OFF Control, Negative Remote On/Off logic Logic Low (Module On) Von/off 0.8 V Logic High (Module Off) Von/off 2.4 5 V ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) Von/off 0.8 V Logic High (Module On) Von/off 2.4 5 V ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 1 mA Leakage Current (for both remote on/off logic) Logic High, Von/off=5V Output Voltage Trim Range(note 2) Pout ≦ max rated power,Io ≦ Io.max -10 10 % Output Voltage Remote Sense Range Pout ≦ max rated power,Io ≦ Io.max 10 % Output Over-Voltage Protection Over full temp range; % of nominal Vout 115 140 % GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=25°C, normal input,600FLM 3.0 M hours Weight Without heat spreader 45.5 grams Weight With heat spreader 61.1 grams Over-Temperature Shutdown ( Without heat spreader) Refer to Figure 19 for Hot spot 1 location (48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-) 135 °C Over-Temperature Shutdown (With heat spreader) Refer to Figure 22 for Hot spot 2 location (48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-) 120 °C Over-Temperature Shutdown ( NTC resistor ) Refer to Figure 19 for NTC resistor location 130 °C Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference.
Q36SR12017_01262014 CSA C22.2 NO. 60950 -1 2nd and IEC 60950-1 2nd : 2005 and EN 60950-1 2nd: 2006+A11+A1: 2010,if the system in which the power modul e is to be used must meet safety agency requirements. Basic insulation based on 75 Vdc input is provided between the input and output of the module for the purpose of applying insulation requirements when the input to this DC-to-DC converter is identified as TNV -2 or SELV. An additional evaluation is needed if the source is other than TNV-2 or SELV. When the input source is SELV circuit, 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 insulated from the ac mains by reinforced or double insulation. The input terminals of the module are not operator accessible. A SELV reliability test is conducted on the system where the module is used , in combination with the module, to ensure that under a single fault, hazardous voltage does not appear at the module’s output. When insta lled into a Class II equipment (without grounding), spacing consideration should be given to the end-use installation, as the spacing between the module and mounting surface have not been evaluated. The power module has extra -low voltage (ELV) outputs when all inputs 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 r equire a Fast-acting fuse with 50A maximum rating to be installed in the ungro unded 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 t ype power modules. For assistance on appropriate soldering and cleaning procedures, please contact Delta’s technical support team. 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 100 μF electrolytic capacitor (ESR < 0.7 Ω 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 P WB layout issues, please contact Delta’s technical support team. An external input filter module is available for easi er EMC compliance design. Below is the reference design for an input filter tested with Q36SR12017 to meet class A in CISSPR 22. Schematic Test result: 25C, 48Vin, full load, Green line is quasi peak mode and blue line is average mode. 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., UL60950-1,
Q36SR12017_01262014 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 c haracterize 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’’). AIR FLOW MODULE PWB 50.8(2.00") AIR VELOCITY AND AMBIENT TEMPERATURE SURED BELOW THE MODULE FANCING PWB Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches) Figure 18: Wind tunnel test setup Thermal Derating Heat can be removed by increasing airflow ove r 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.
Q36SR12017_01262014 MECHANICAL DRAWING (WITH HEAT-SPREADER) For modules with through-hole pins and the optional heatspreader, they are intended for wave soldering assembly onto system boards; please do not subject such modules through reflow temperature profile.
Q36SR12017_01262014 MECHANICAL DRAWING (WITHOUT HEAT-SPREADER) Pin No. Name Function +Vin ON/OFF -Vin -Vout -Sense Trim +Sense +Vout Positive input voltage Remote ON/OFF Negative input voltage Negative output voltage Negative remote sense Output voltage trim Positive remote sense Positive output voltage Pin Specification: Pins 1-3,5-7 1.00mm (0.040”) diameter Pins 4 & 8 2. 1.50mm (0.060”) diameter Note：All pins are copper alloy with matte tin(Pb free) plated over Ni under-plating.
Q36SR12017_01262014 RECOMMENDED PAD LAYOUT(THROUGH-HOLE MODULE)
Q36SR12017_01262014 PART NUMBERING SYSTEM Q 36 S R 120 17 N R F A Type of Product Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length/Type Option Code Q - 1/4 Brick 36 - 18V~75V S - Single R - Regular 120 - 12V 17 - 17A N- Negative P- Positive R - 0.170” N - 0.146” K - 0.110” Space - RoHS 5/6 F - RoHS 6/6 (Lead Free) A - Standard Functions H-with heat spreader MODEL LIST MODEL NAME INPUT OUTPUT EFF @ 100% LOAD Q36SR12017NRFA 18V~75V 15A 12V 17A 93.0% @ 48Vin Q36SR12017NNFA 18V~75V 15A 12V 17A 93.0% @ 48Vin Q36SR12017NKFA 18V~75V 15A 12V 17A 93.0% @ 48Vin Q36SR12017NKFH 18V~75V 15A 12V 17A 93.0% @ 48Vin Default remote on/off logic is negative and pin length is 0.170” * For modules with through-hole pins and the optional heatspreader, they are intended for wave soldering assembly onto system boards; please do not subject such modules through reflow temperature profile. CONTACT: www.deltaww.com/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: DCDC@delta-corp.com Europe: Phone: +31-20-655-0967 Fax: +31-20-655-0999 Email: DCDC@delta-es.com Asia & the rest of world: Telephone: +886 3 4526107 Ext 6220~6224 Fax: +886 3 4513485 Email: DCDC@delta.com.tw WARRANTY Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or 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 gran ted 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.