Q48DW3R312NRFA DELTA | Alldatasheet
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Technical content
FEATURES
High efficiency: 85.3% @ 1.2V/13A, 3.3V/8A Low profile: 0.33” Industry standard footprint and pinout Flexible current allocation on each output Low voltage output (O/P 1) starts up first Fixed frequency operation Input UVLO, Output OCP, OVP, OTP No minimum load required 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 directives. Delphi Series Q48DW, 45W Quarter Brick, Dual Output DC/DC Power Modules: 1.2V/13A and 3.3V/8A The Delphi Series Q4 8DW Qu arter Brick, 48V in put, dual outp ut, isolated DC/DC converters are the latest offering from a world leader in power sy stem and te chnology an d manufa cturing — Delta Electronics, Inc. This p roduct family provides dual positive regulated outputs with a flexible combination of output current and power up to 45W in a very cost effective industry standard footprint. With creative design technology and o ptimization of component placement, these converters possess outstanding electrical and the rmal performance, as well as extremely high reliability under highly stre ssful operating conditions. All models are fully protected from abnormal input/output voltage, current, and te mperature conditions. Th e Del phi Se ries Q48DW converters meet all safety requirements with basic insulation. OPTIONS Positive On/Off logic Short pin lengths Heatsink available for extended operation
APPLICATIONS
Telecom/DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial/Test Equipment DATASHEET DS_ Q48DW3R312_07202006
DS_Q48DW3R312_07202006 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=200 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS Q48DW3R312NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) <100ms 100 Vdc Operating Temperature Refer to Figure 27 for measuring point -40 118 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage <1 minute 1500 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 48 75 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 33 34 35 Vdc Turn-Off Voltage Threshold 31 32 33 Vdc Lockout Hysteresis Voltage 1 2 3 Vdc Maximum Input Current 1.8 A No-Load Input Current 40 60 mA Off Converter Input Current 5 10 mA Inrush Current(I2t) 0.015 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 5 10 mA Input Voltage Ripple Rejection 120Hz 66 dB OUTPUT CHARACTERISTICS Output Voltage Regulation Io1=Io, min to Io, max, Io2=0A Vout 1Over Load Io2=Io, min to Io, max, Io1=0A Vout 2 ±5 ±15 mV Vout 1Over Line Vin=36V to 75V,Io1=Io2=full load Vout 2 ±3 ±10 mV Cross Regulation Worse Case ±5 ±15 mV Over Temperature Tc=-40℃ to 110 ℃ ±15 ±50 mV Total Output Voltage Range Over sample load, line and temperature ±30 ±85 mV Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Vout 1 30 50 Peak-to-Peak Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum Vout 2 30 50 mV Vout 1 15 30 RMS Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum Vout 2 15 30 mV Vout 1 0 13 Operating Output Current Range Vout 2 0 8 A Vout 1 14.5 Output DC Current-Limit Inception Vout 2 9.5 A DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs Vout 1 100 Positive Step Change in Output Current Iout1and Iout2 from 50% Io, max to 75% Io, max Vout 2 100 mV Vout 1 100 Negative Step Change in Output Current Iout2 and Iout1 from 75% Io, max to 50% Io, max Vout 2 100 mV Cross dynamic 100 mV Settling Time (within 1% Vout nominal) 100 us Turn-On Transient Delay Time, From On/Off Control 5 ms Delay Time, From Input 5 ms Start-up Time, From On/Off Control 10 ms Start-up Time, From Input 10 ms Full load; 5% overshoot of Vout at startup Vout 1 10000 Maximum Output Capacitance Vout 2 5000 µF EFFICIENCY 100% Load Iout1, Iout2 full load, 48vdc Vin 85.3 % 60% Load Iout1, Iout2 60% of full load, 48vdc Vin 86.5 % ISOLATION CHARACTERISTICS Input to Output <1 minute 1500 Vdc Input to Case Output to Case Isolation Resistance 10 MΩ Isolation Capacitance 2000 pF FEATURE CHARACTERISTICS Switching Frequency 300 kHz ON/OFF Control, (Logic Low-Module ON) Logic Low Von/off at Ion/off=1.0mA 0 0.8 V Logic High Von/off at Ion/off=0.0 µA 18 V ON/OFF Current Ion/off at Von/off=0.0V 1 mA Leakage Current Logic High, Von/off=15V 1 mA Output Voltage Trim Range Just trim Vout1, Pout ≦ max rated power -10 +10 % Output Boltage Remoote Sense Range No Remote Sense Function Output Over-Voltage Protection Over full temp range; %of nominal Vout 120 135 150 % GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=25°C 2.69 M hours Weight 25 grams Over-Temperature Shutdown Refer to Figure 27 for measuring point 120 °C
The imp edance of the i nput sou rce co nnecting to t he DC/DC power mod ules wi ll intera ct wit h the mod ules and affect the stability. A low ac-impedance input source is recommended. If the source indu ctance is more than a few µH, we advise addin g a 10 to 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 co mpliance an d related P WB layout issu es, please cont act Delta’s te chnical supp ort team. An ex ternal i nput f ilter mod ule is availa ble f or easier EMC compliance design. Safety Considerations The power module must be installed in compliance with the sp acing and se paration req uirements of the end-user’s safety agen cy st andard, i.e., UL60 950, CAN/CSA-C22.2 No. 60950-00 and EN60950:2000 and IEC60950-1999, if the syst em in which the po wer module is to be used must meet safety agency requirements. When the i nput so urce i s 60 Vd c o r b elow, th e po wer module me ets SEL V (safety extra-lo w 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 mu st be insulate d from any hazardous volt ages, inclu ding 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. If the met al baseplate is grounded the output must be also grounded. A SELV relia bility test is condu cted o n the system where the module i s u sed to en sure that und er a single fault, hazard ous voltage does not appear at the module’s output. Do not g round one of the input pins without grounding one of the o utput pins. This co nnection 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 inputs are ELV. This po wer module i s no t internally fused. T o achi eve optimum safety and system protection, an input line fuse is highly re commended. The safety ag encies 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 th e maximum inru sh tra nsient 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 af fect 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 app ropriate solde ring and cle aning procedu res, please contact Delta’s technical support team. DS_Q48DW3R312_07202006
FEATURES DESCRIPTIONS (CON.) Figure 25: Circuit configuration for trim-down (decrease output voltage) If the externa l resistor is connected between the T RIM and RTN, the output voltage (Vout1) set point decreases (Fig.25). Refer to the table below for the external resistor values. T rim Resistor (Vout Increase) Trim Resistor (Vout Decrease) Vout1 Rtrim-up [KΩ] Vout1 Rtrim-down [KΩ] 1.2 Open 1.2 Open 1.32 14.4 1.08 18.7 When using the trim functi on and the o utput voltage of the module is increa sed, this will incre ase the po wer output of the module with the same output current. Care should be t aken to ensure that the maximum outp ut power of the module remains at or below the maximum rated power. To trim up, conne ct trim resi stor (Rtrim-up) from trim pin to Vout1(+) (1.2v). The trim equation is Rtrim-up = [Vo / (0.538Vo - 0.648)] - 6.81 Unit: K Example: If the 1.2V output is trimmed up to +1.3V, connect the Rtrim-up from trim pin to V out1(+). The value of the Rtrim-up is: To trim down, connect trim resistor (Rtrim-down) from trim pin to RTN (power ground). The trim equation is Rtrim-down = [Vo / (0.362-0.296Vo)]-6.81 Unit: K Example: If the 1.2V i s trimmed down to 1.1V, connect the Rtrim-down from trim pin to RTN (Power ground). The value of Rtrim-down is: DS_Q48DW3R312_07202006
Pin No. Name Function +Vin ON/OFF -Vin +Vout1 Output RTN TRIM +Vout2 Positive input voltage Remote ON/OFF Negative input voltage Positive output voltage1 Power Ground (Vout1 and Vout2) Output voltage trim Positive output voltage2 Notes: Pins 1-7 are 1.50mm (0.060”) diameter All pins are copper with Tin Plating (Lead Free). DS_Q48DW3R312_07202006
W – Product Feature 3R3 – 3.3V 10 - 1.0V 12 - 1.2V 15 - 1.5V 18 - 1.8V 25 - 2.5V N - Negative P - Positive R - 0.150” N - 0.145” K - 0.110” F- RoHS 6/6 (Lead Free) A - Standard functions MODEL LIST MODEL NAME INPUT OUTPUT * EFF @ Full Load Q48DW3R310NRFA 36V~75V 1.6A 1.0V/13A 3.3V/8A 85.5% Q48DW3R312NRFA 36V~75V 1.7A 1.2V/13A 3.3V/8A 85.3% Q48DW3R315NRFA 36V~75V 1.8A 1.5V/12A 3.3V/8A 85.3% Q48DW3R318NRFA 36V~75V 1.8A 1.8V/10A 3.3V/8A 86.5% Q48DW3R325NRFA 36V~75V 2.0A 2.5V/8A 3.3V/8A 87.0% * Note: Total output power should not exceed 50 watts and maximum output current for high output is 10A, for low output is 14A. 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: Phone: +41 31 998 53 11 Fax: +41 31 998 53 53 Email: DCDC@delta-es.com Asia & the rest of world: Telephone: +886 3 4526107 ext 6220 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. Howev er, 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_Q48DW3R312_07202006