Q48SB9R650NRFA DELTA | Alldatasheet
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Technical content
FEATURES
High Efficiency: 96.8% @9.6V/50A Standard footprint: 58.4 x 36.8 x12.3mm Industry standard pinout Input OVP, UVLO; output OCP and OTP 1500V isolation Basic insulation Monotonic startup into normal load and pre-bias loads No minimum load required Constant 500W output power Parallelable for higher power output ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility UL/cUL 60950 (US & Canada), and TUV (EN60950) pending CE mark Pending DATASHEET 0_07102006
APPLICATIONS
Delphi Series Q48SB, 500W Bus Converter DC/DC Power Modules: 48V in, 9.6V/55A out The Delphi Series Q48SB, 48V input, single output, quarte r brick, 500W bus converter is the latest offering from a world leader in power systems technology a nd ma nufacturing -- Delt a Electroni cs, Inc. This p roduct family suppo rts inte rmediate bus a rchitectures a nd powers m ultiple downstream non-i solated point -of-load (PO L) conve rters. The Q48SB9R6 (5:1) operates from a nomi nal 48V input and provides up to 500W of power or up to 6 3A (@ 38V in) of output curre nt in an in dustry standard quarter brick footprint. The Q48SB 5:1 bu s converter operates with 500W constant output power, hence when input voltage drops, the output current will increase accord ingly. T ypical ef ficiency for the 9.6V/50A output is 96.8%. With optimized comp onent place ment, creative de sign topol ogy, and n umerous patented techn ologies, the Q48SB bus converte r delivers out standing electrical and therm al performance. An optiona l heat sink is availabl e for ha rsh therma l requirements. Datacom / Networki Wireless Networks Optical Network Equ Server and Data Storage Industrial/Testing Equipme DS_Q48SB9R65 OPTIONS Positive On/Off logic Heatspreader available for extended operation Latch mode output OCP and OTP
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS Q48SB9R650NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 57 Vdc Operating Temperature Refer to Fig.17 for the measuring point -40 124 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 1500 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 48 57 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 32.5 34 35.5 Vdc Turn-Off Voltage Threshold 30.5 32 33.5 Vdc Lockout Hysteresis Voltage 2 Vdc Input Over-Voltage Lockout Turn-Off Voltage Threshold 59 60.5 62 Vdc Turn-On Voltage Threshold 57 58.5 60 Vdc Lockout Hysteresis Voltage 2 Vdc Maximum Input Current 100% Load, 38V Vin 13.5 A No-Load Input Current 80 200 mA Off Converter Input Current 12 15 mA Inrush Current(I2t) With 100uF external input capacitor 1 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 20 40 mA Internal input filter component value L/C 0.47/4.4 uH/uF Recommend external input capacitor for system stability Capacitance 47 100 uF ESR 100KHz -40oC to 100oC 0.1 0.2 ohm OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, Io=no load, Ta=25°C 9.6 Vdc Output Voltage Regulation Over Load Io=Io,min to Io,max 400 600 mV Over Line Vin=38V to 55V 3.8 V Over Temperature Tc=-40°C to 100°C 400 mV Total Output Voltage Range over sample load, line and temperature 6.8 11.5 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 80 120 mV RMS Full Load, 1µF ceramic, 10µF tantalum 25 50 mV Operating Output Power Range 38V<Vin≤42V 0 480 W 42V<Vin≤55V 0 500 W Output DC Powert-Limit Inception output voltage 10% lower 38V≤Vin≤55V 120% 130% W Current share accuracy (2 units in parallel) % of rated output current 10 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 1A/µs Positive Step Change in Output Current 50% Io.max to 75% Io.max 300 mV Negative Step Change in Output Current 75% Io.max to 50% Io.max 300 mV Settling Time (within 1% Vout nominal) 200 us Turn-On Transient Start-Up Time, From On/Off Control 35 ms Start-Up Time, From Input 35 ms Maximum Output Capacitance Single module operation Start up with 20A Load 10000 µF Single module operation Start up with 55A Load 5000 µF 2 pcs Parallel module operation Start up with 20A Load 10000 µF 2 pcs Parallel module operation Start up with 110A Load 8000 µF EFFICIENCY 55A 95.4 96.4 % 50A 95.8 96.8 % 33A 95.8 96.8 % ISOLATION CHARACTERISTICS Input to Output 1500 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1000 pF FEATURE CHARACTERISTICS Switching Frequency 130 kHz ON/OFF Control for single module operation Negative Remote On/Off logic Logic Low (Module On) -0.7 0.8 V Logic High (Module Off) 2 18 V Positive Remote On/Off logic Logic Low (Module Off) -0.7 0.8 V Logic High (Module On) 2 18 V ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 0.25 0.3 mA Leakage Current (for both remote on/off logic) Logic High, Von/off=15V 50 uA GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=25°C; 300LFM airflow TBD M hours Weight (open frame) 54 grams Over-Temperature Shutdown Refer to Fig.17 for the measuring point 129 °C DS_Q48SB9R650_07102006
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 sourc e is recommend ed. If the sourc e inductance is more than a fe w μH, we a dvise ad ding a t ypical 100uF electrol ytic capacitor (ESR > 0.1 Ω at 100 kHz, -40 oC t o 100oC.) mounted close to the inp ut of the modu le to imp rove the stability. Layout and EMC Considerations Delta’s DC/DC power modules are designed to operate in a wide va riety of system s and ap plications. Fo r design assistance wi th EMC com pliance an d related PWB layout issues, please cont act De lta’s tech nical suppo rt team. An external inp ut filter module is availab le for easi er 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 sep aration requirements of the end-user ’s safety agency standard, i.e., UL60950, CAN/CSA-C22.2 No. 60950-00 an d EN60 950: 2000 a nd IEC60 950-1999, if the system in which the power module is to be used must meet safety agency requirements. Basic insulation based on 75 Vdc input is provide d between the input a nd output of the mod ule for the p urpose of applying insulation req uirements wh en the input to this DC-to-DC co nverter is id entified as T NV-2 or SEL V. An additional evaluation i s n eeded if the sou rce is oth er tha n TNV-2 or SELV. When the input sou rce is SEL V circuit , the power module meets SELV (safety extra-low volt age) 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 a c mains by reinforced or double insulation. The input t erminals of the modul e are n ot operator accessible. If the metal baseplate is grounded, one Vi pin and one Vo pin shall also be grounded. 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 do es not appea r at the module’s output. When install ed into a Cl ass II equipment (with out grounding), spacing consideration should be given to the end-use installation, as the sp acing between the module a nd mounting surfa ce h ave not been evaluated. The po wer module h as extra-lo w voltage (ELV ) outputs when all inputs are ELV. This power module is not internally fused. To achieve optimum safety and system protectio n, an input line fuse is highly recom mended. The safety agenci es require a normal-blow fuse with 50A maximum rating to be installed in the unground ed lead. A lower rate d fuse can b e use d ba sed on the max imum inrush transient energy and maximum input current. Soldering and Cleaning Considerations Post solde r cleanin g is usually the final board assembly p rocess befo re the boa rd or system undergoes e lectrical te sting. Inadeq uate clea ning and/or d rying may lower the reliability of a power module and severely affect the finishe d circuit boa rd assembly te st. Adequate cleaning a nd/or dryin g is especially important for un-encapsulated and/or open frame type powe r mo dules. For assist ance o n appropriate soldering a nd cl eaning pro cedures, please contact Delta’s technical support team. DS_Q48SB9R650_07102006
The module s includ e an internal output over-current protection circuit, which will endure current limiting for an unlimited du ration duri ng output overlo ad. If the output current exce eds the OCP set point, the module s will automatically shut down, and enter latch mode or hiccup mode, which is optional. For hi ccup mode, the module will t ry to re start after shutdown. If the overload condition still exists, the module will shut do wn again. This restart trial will continue until the overload condition is corrected. For latch m ode, the module will la tch off once it shutdown. The latch i s reset by either cycling the in put power or by toggling the on/off signal for one second. Over-Temperature Protection The over-temperature protection consists of circuitry that provides p rotection fro m thermal damage. If th e temperature exceeds the over-temperature threshold the module will shut down , and enter latch mod e or auto-restart mode, which is optional. For auto -restart mode, the module will monitor the module te mperature after shut down. On ce th e temperature is within the specification, the module will be auto-restart, For lat ch m ode, the m odule will la tch of f on ce it shutdown. Either cy cling the input powe r or toggling t he on/off signal for one second can reset the latch. Remote On/Off The remote on/off feature on the mo dule can be either negative or positive logi c. Negative logic turns t he module on during a logic low and off during a logic high. Positive logic turns th e modules on during a logic high and off during a logic low. Remote on/off can b e controlled by an external switch between the on/off terminal and th e Vi(-) terminal. The switch can be an open collector or open drain. For negative logic if the remote on/of f feature is not used, plea se sho rt the on/off pin to V i(-). Fo r p ositive logic if the remote on/of f feature is not used, please leave the on/off pin to floating. Figure 15: Remote on/off implementation R Load Vi(-) Vi(+) ON/OFF Vo(-) Vo(+) R Load Vi(-) Vi(+) ON/OFF Vo(-) Vo(+) Vi(-) Vi(+) ON/OFF Vo(-) Vo(+) DS_Q48SB9R650_07102006
MECHANICAL DRAWING (WITHOUT HEATSPREADER) Pin No. Name Function -Vin ON/OFF +Vin -Vout +Vout -Vout +Vout Negative input voltage Remote ON/OFF Positive input voltage Negative output voltage (optional) Positive output voltage Negative output voltage Positive output voltage (optional) Pin Specification: Pins 1-3 1.0mm (0.040”) diameter Pins 4-7 1.5mm (0.060”) diameter All pins are copper with Tin plating DS_Q48SB9R650_07102006
MECHANICAL DRAWING (WITH HEAT SPREADER) DS_Q48SB9R650_07102006
DS_Q48SB9R650_07102006 PART NUMBERING SYSTEM Q 48 S B 9R6 50 N R F A Type of Product Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code Q- Quarter Brick 48- 48V S- Single B- Bus Converter 9R6 - 9.6V 50 - 55A @ 48Vin N- Negative P- Positive R- 0.170” N- 0.145” K- 0.110” F- RoHS 6/6 (Lead Free) A- 4 output pin, no heat spreader C- 2 output pin, no heat spreader H- 4 output pin, with heat spreader MODEL LIST MODEL NAME INPUT OUTPUT Eff. @ 48Vin, 480W Po Q48SB9R650NRFA 36V~57V 14A 9.6V 55A 96.8% Q48SB12040NRFA 36V~57V 14A 12V 40A 96.8% Default remote on/off logic is negative and pin length is 0.170” Hiccup output OCP and auto-restart OTP are default; For different remote on/off logic, pin length and output OCP and OTP mode, please refer to part numbering system above or contact your local sales CONTACT: www.delta.com.tw/dcdc USA: Telephone: East Coast: (888) 335 8201 West Coast: (888) 335 8208 Fax: (978) 656 3964 Email: DCDC@delta-corp.com Europe: Telephone: +41 31 998 53 11 Fax: +41 31 998 53 53 Email: DCDC@delta-es.tw Asia & the rest of world: Telephone: +886 3 4526107 x6220 Fax: +886 3 4513485 Email: DCDC@delta.com.tw WARRANTY Delta offers a two (2) year limited warranty. Complete warrant y 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 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.