QUARTER-BRICK SERIES Embedded Power for Business-Critical Continuity QUARTER-BRICK SERIES 1 of 32 Total Power: 116 W Input Voltage: 36-75 VDC # of Outputs: Dual Special Features Two independent outputs High full load efficiency Low profile through hole version Wide ambient temperature range, -40 C to +85 C 90% to 110% output trim Basic Insulation system Overvoltage and overtemperature protection Remote ON/OFF Approvals to EN60950-1 (VDE) and UL60950 (UL/cUL) 100 V, 100 ms input voltage transient rated Up to 100% load imbalance Starts into pre-biased outputs Tracking monotonic startup Secondary side control, no optocouplers, fast transient load response Available RoHS compliant 2 year warranty NOTICE SOME MODELS LISTED IN THIS DOCUMENT HAVE BEEN DISCONTINUED Please contact your local Artesyn representative or use the on line model number search tool at http://www.artesyn.com/powergroup/products.htm to find a suitable alternative. The Quarter-Brick series is a new high efficiency, openframe, isolated, non-parallelable, dual-output converter product in an industry standard quarter-brick footprint and operating from a 36 Vdc to 75 Vdc supply. This new series elevates the power density threshold for high-end application design requirements where high output current at low voltages are required. The converter architecture takes advantage of open-frame construction to provide low mass and a low thermal impedance for a single board design. Additionally, a novel full wave coupled inductor topology yields some of the highest full load efficiencies in the industry. The Quarter-Brick series has, as standard features, remote ON/ OFF capability, adjustable output voltage trim from 90% to 110% of nominal, over-current/under-voltage protection, and full international safety approval including EN60950-1 VDE and UL60950 UL/cUL.
2 of 32 Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reliability. Absolute Maximum Ratings Input voltage - continuous V in (cont) -0.3 75 Vdc V in (+) - V in (-) Input voltage - peak/surge V in (peak) -0.3 100 Vdc Transients 100 ms or less in duration Input Voltage - remote pin V rem (peak) -0.3 75 Vdc Peaks of any duration Operating temperature Top -40 85 C Measured at ambient. See Application Note 137 for details Storage temperature T storage -55 125 C Maximum Rated Output Power LQD30A48-3V3-1V2J P out (max) 67.5 W LQD30A48-3V3-1V5J P out (max) 72 W LQD30A48-3V3-1V8J P out (max) 76.5 W LQD30A48-3V3-2V5J P out (max) 87 W LQD25A48-5V0-3V3J P out (max) 99.5 W All specifications are typical at nominal input Vin = 48 V, with full rated resistive load on both outputs at 25 C ambient unless otherwise stated. Input Characteristics Input voltage - operating V in (oper) 36 48 75 Vdc Input current - no load l in 50 80 madc V in (min) - V in (max), enabled Input current - Quiescent l in (off) 3 6 madc Converter disabled Inrush current (i 2 t) Inrush 0.05 A2 s See Application Note 137 for Inrush current ratio I t /I m 22 inrush test circuit Input ripple rejection 50 db Frequency <1 khz Input fuse 10 A Slow blow/antisurge HRC recommended 200 V Rating See Application Note 137 Turn On/Off Input voltage - turn on V in (on) 35.5 36 Vdc Input voltage - turn off V in (off) 33 33.5 35 Vdc Turn on delay - enabled, T delay 14 20 ms With the Remote ON/OFF signal then power applied (power) asserted, time from when V in > V in (oper) until Vout is within total regulation band Turn on delay - power T delay 14 20 ms With V in = V in (nom), then applied, then enabled (enable) Remote ON/OFF asserted, time until Vo within total error band Rise time T rise 4 6 ms From 10% to 90%, full resistive load, no external capacitance
3 of 32 Signal Electrical Interface Characteristic - Signal Name Symbol Min Typ Max Units Notes and Conditions At remote ON/OFF (control) pin See Notes 1 and 2 Open collector or equivalent compatible See Application Note 137 for remote ON/OFF details Control pin open circuit voltage V ih 2.8 3.5 V I ih = 0 µa; open circuit voltage High level input voltage V ih 2.4 V Converter guaranteed ON when control pin is greater than V ih (min) High level input current I ih 10 µa Current flowing into control pin when pin is pulled high (max. at V ih = 75 V) Acceptable high level I ih (leakage) -10 µa Acceptable leakage current from leakage current signal pin into the open collector driver (neg = from converter) Low level input voltage V ii 0.4 V Converter guaranteed OFF when control pin is < V il (max) Low level input current I il (max) -0.4-0.5 ma V ii = 0.0 V, maximum source current from converter with short circuit Common Protection/Control Overtemperature shutdown Tots 120 125 130 C Hotspot temperature nonthreshold latching shutdown protection. See Application Note 137 Reliability and Service Life Mean time between failure MTBF 2,883,816 Hours Telcordia Tech. SR-332 Tamb = 25 C, Tcase = 20 C rise airflow = 400 LFM, V in = V in (nom), I out 1,2 = 50% I out 1,2 (max) Isolation Input to output test voltage 2250 Vdc Test duration 1 s Input to output capacitance 1200 pf Input to output resistance 10 MΩ Measured with 500 Vdc Input to output insulation system Basic
4 of 32 Other Specifications Switching frequency F sw 480 khz All models Weight 34 g Environmental Requirements Thermal performance -40 120 C Hotspot temperature Altitude 3000 m Derate total max. output current by 20% 9843 ft Derate total max. output current by 20% 10000 m Derate total max. output current by 50% 32808 ft Derate total max. output current by 50% Type Parameter Reference Test Level Air temperature IEC 60068-2-1 Ab/Ad: -40 C, 16 h Cold IEC 680068-2-2 Bb/Bd: Dry heat +70 C, 16 h IEC 68-2-14 Nb: Rate of -5 C/+45 C, 0.5 C/min 2 cycles, 3 h ea change Relative humidity IEC60068-2-56 +35 C, 93% RH, 4 days 50%, of samples powered Cb: damp heat, steady at 10% load and 50% unpowered state Vibration IEC60068-2-6 3 axes, 5 sweeps per axis, unpowered on test card. Fc: sinusoidal Freq. range and displacement 5-9 Hz, 1.2 mm. Freq. range and acceleration 9-200 Hz, 10 m/s 2 Shock and bump IEC 60068-2-29 100 bumps each of 6 directions, mounted on test card and Eb: bump powered on. Shock spectrum half-sine, duration 11 ms, acceleratoin: 50 m/sec 2 EMC Electromagnetic Compatibility ^ Phenomenon Port Standard Test level Notes and conditions Immunity: ESD Enclosure EN61000-4-2 6 kv contact Level 3, (output within specification) 8 kv air Level 3, (output within specification) Radiated field Enclosure EN61000-4-3 10 V/m Level 3, (output within specification) X and Y axes Conducted DC power EN61000-4-6 10 V Level 3, (output within specification) Input transients DC power 100 V, 100 ms With recommended Class B external filter, no load, 10 J (output remains within ±9%)
5 of 32 Standards Compliance List Characteristic EN60950-1 UL/cUL 60950 3rd edition Safety Agency Approvals Standard Category UL/cUL60950 File Number E135734/60950 VDE Certificate No. 10401-3336-0197 Licence No: 4000507 Material Ratings Characteristic Flammability rating Material type Notes and Conditions UL94V-0 FR4 PCB Model Numbers Model Input Output Overvoltage Output Current Typical Number Voltage Voltage Protection (Max.)Efficiency LQD30A48-3V3-1V2J 36-75 Vdc 3.3 V/1.2 V 4 V/1.5 V 15 A/15 A 90% LQD30A48-3V3-1V5J 36-75 Vdc 3.3 V/1.5 V 4 V/1.8 V 15 A/15 A 90.5% LQD30A48-3V3-1V8J 36-75 Vdc 3.3 V/1.8 V 4 V/2.0 V 15 A/15 A 90.5% LQD30A48-3V3-2V5J 36-75 Vdc 3.3 V/2.5 V 4 V/3.0 V 15 A/15 A 91% LQD25A48-5V0-3V3J 36-75 Vdc 5.0 V/3.3 V 6 V/4.0 V 10 A/15 A 91% RoHS Compliance Ordering Information The J at the end of the Partnumber indicates that the Part is Pb-free (RoHS 6/6 compliant). TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special request, please contact your local sales representative for details.
6 of 32 LQD30A48-3V3-1V2J Model Input Characteristics Input current - operating I in 1.6 Adc V in = V in (nom) ; I out = I out (max.) ; V o = V o (nom) 100% load on each output Input current - maximum I in (max.) 2.40 Adc V in = V in (min) ; I out = I out (max.) ; V o = V o (nom), 100% load on each output Input capacitor ripple current I in (ripple) 30 ma rms I out = I out (max.), measured 60 ma pk-pk with external Filter. See Application Note 137 for details Reflected ripple current I in (ref) 2 ma rms I out = I out (max.), measured 5 ma pk-pk with external Filter. See Application Note 137 for details Input capacitance - C input 3 µf Internal to converter internal filter Input capacitance - C bypass 33 µf Recommended customer external bypass added capacitance, <0.7 Ω ESR LQD30A48-3V3-1V2J Model Electrical Characteristics - O/P Nominal set-point voltage V o (nom) 1.2 V 1.18 1.20 1.22 Vdc V in = V in (nom) ; V o (nom) 3.3 V 3.25 3.30 3.35 Vdc I out = I out (nom) Total regulation band V o 1.2 V 1.16 1.24 Vdc For all line, static load and V o 3.3 V 3.20 3.40 Vdc temperature until end of life Line regulation V o 1.2 V 0.8 % I out = I out (nom); V in (min) to V o 3.3 V 0.5 % V in (max) Load regulation V o 1.2 V 0.8 % V in = V in (nom); I out (min) to V o 3.3 V 0.5 % I out (max) Temperature regulation 0.005 0.01 ±%/ C V in = V in (nom) ; I out = I out (max) Output current continuous I out 1.2 V 0 15 Adc I out 3.3 V 0 15 Adc Output current - short circuit I sc 1.2 V 8 A rms Continuous, unit auto recovers I sc 3.3 V 8 A rms from short, V o < 100 mv. See Application Note 137 Load transient response - V dynamic 1.2 V 40 75 mv Peak deviation for 50% to 75% peak deviation V dynamic 3.3 V 40 75 mv step load, di/dt = 100 ma/µs Load transient response - T recovery 20 50 µs Settling time to within 1% of recovery output set point voltage for 50% to 75% load step External load capacitance C ext 1.2 V 0 3,300 µf Higher load capacitance values C ext 3.3 V 0 3,300 µf may be possible. Contact Artesyn Technologies for details Output voltage - noise Vp-p 30 50 mv p-p Measurement bandwidth 20 MHz. Vrms 10 15 mv rms See Application Note 137 for measurement set-up details
7 of 32 LQD30A48-3V3-1V2J Model Protection and Control Features Overvoltage trip voltage V ov 1.2 V 1.56 Vdc Non-latching. See Application V ov 3.3 V 4.29 Vdc Note 137 for details Overcurrent limit inception I oc 15.5 17.6 20 Adc V o = 90% of V o (nom) Output voltage trim range 110 % Trim up (% of V o nom ) Limit O/P to 67.5 W 90 % Trim down (% of V o nom ) See Application Note 137 for details of trim equations and trim curves LQD30A48-3V3-1V2J Model Efficiency Efficiency h 91 % I out 3.3 V = 50% Iout (max), I out 1.2 V = 100% Iout (max), V in = V in (nom) Efficiency h 90.5 % I out 3.3 V = 100% I out (max), I out 1.2 V = 50% I out (max), V in = V in (nom) Efficiency h 88 90 % I out 3.3 V = 100% I out (max), I out 1.2 V = 100% I out (max), V in = V in (nom)
8 of 32 LQD30A48-3V3-1V5J Model Input Characteristics Input current - operating I in 1.7 Adc V in = V in (nom) ; I out = I out (max.) ; V o = V o (nom) 100% load on each output Input current - maximum I in (max.) 2.50 Adc V in = V in (min) ; I out = I out (max.) ; V o = V o (nom), 100% load on each output Input capacitor ripple current I in (ripple) 30 ma rms I out = I out (max.), measured 60 ma pk-pk with external Filter. See Application Note 137 for details Reflected ripple current I in (ref) 2 ma rms I out = I out (max.), measured 5 ma pk-pk with external Filter. See Application Note 137 for details Input capacitance - C input 3 µf Internal to converter internal filter Input capacitance - C bypass 33 µf Recommended customer external bypass added capacitance, <0.7 Ω ESR LQD30A48-3V3-1V5J Model Electrical Characteristics - O/P Nominal set-point voltage V o (nom) 1.5 V 1.48 1.50 1.53 Vdc V in = V in (nom) ; V o (nom) 3.3 V 3.25 3.30 3.35 Vdc I out = I out (nom) Total regulation band V o 1.5 V 1.44 1.55 Vdc For all line, static load and V o 3.3 V 3.20 3.40 Vdc temperature until end of life Line regulation V o 1.5 V 0.8 % I out = I out (nom); V in (min) to V o 3.3 V 0.5 % V in (max) Load regulation V o 1.5 V 0.8 % V in = V in (nom); I out (min) to V o 3.3 V 0.5 % I out (max) Temperature regulation 0.005 0.01 ±%/ C V in = V in (nom) ; I out = I out (max) Output current continuous I out 1.5 V 0 15 Adc I out 3.3 V 0 15 Adc Output current - short circuit I sc 1.5 V 8 A rms Continuous, unit auto recovers I sc 3.3 V 8 A rms from short, V o < 100 mv. See Application Note 137 Load transient response - V dynamic 1.5 V 40 75 mv Peak deviation for 50% to 75% peak deviation V dynamic 3.3 V 40 75 mv step load, di/dt = 100 ma/µs Load transient response - T recovery 20 50 µs Settling time to within 1% of recovery output set point voltage for 50% to 75% load step External load capacitance C ext 1.5 V 0 3,300 µf Higher load capacitance values C ext 3.3 V 0 3,300 µf may be possible. Contact Artesyn Technologies for details Output voltage - noise Vp-p 30 50 mv p-p Measurement bandwidth 20 MHz. Vrms 10 15 mv rms See Application Note 137 for measurement set-up details
9 of 32 LQD30A48-3V3-1V5J Model Protection and Control Features Overvoltage trip voltage V ov 1.5 V 1.65 1.88 Vdc Non-latching. See Application V ov 3.3 V 3.63 4.29 Vdc Note 137 for details Overcurrent limit inception I oc 15.5 17.6 20 Adc V o = 90% of V o (nom) Output voltage trim range 110 % Trim up (% of V o nom ) Limit O/P to 72 W 90 % Trim down (% of V o nom ) See Application Note 137 for details of trim equations and trim curves LQD30A48-3V3-1V5J Model Efficiency Efficiency h 91 % I out 3.3 V = 50% Iout (max), I out 1.5 V = 100% Iout (max), V in = V in (nom) Efficiency h 91 % I out 3.3 V = 100% I out (max), I out 1.5 V = 50% I out (max), V in = V in (nom) Efficiency h 88 90.5 % I out 3.3 V = 100% I out (max), I out 1.5 V = 100% I out (max), V in = V in (nom)
10 of 32 LQD30A48-3V3-1V8J Model Input Characteristics Input current - operating I in 1.8 Adc V in = V in (nom) ; I out = I out (max.) ; 100% load on each output Input current - maximum I in (max.) 2.70 Adc V in = V in (min) ; I out = I out (max.) ; 100% load on each output Input capacitor ripple current I in (ripple) 30 ma rms I out = I out (max.), measured 60 ma pk-pk with external filter. See Application Note 137 for details Reflected ripple current I in (ref) 3 ma rms I out = I out (max.), measured 5 ma pk-pk with external filter. See Application Note 137 for details Input capacitance - C input 3 µf Internal to converter internal filter Input capacitance - C bypass 33 µf Recommended customer external bypass added capacitance, <0.7 Ω ESR LQD30A48-3V3-1V8J Model Electrical Characteristics - O/P Nominal set-point voltage Vo (nom) 1.8 V 1.77 1.80 1.83 Vdc V in = V in (nom) ; Vo (nom) 3.3 V 3.25 3.30 3.35 Vdc I out = I out (nom) Total regulation band Vo 1.8 V 1.75 1.85 Vdc For all line, static load and Vo 3.3 V 3.20 3.40 Vdc temperature until end of life Line regulation Vo 1.8 V 0.5 % Vo 3.3 V 0.3 % I out = I out (nom); V in (min) to V in (max) Load regulation Vo 1.8 V 0.5 % Vo 3.3 V 0.5 % V in = V in (nom); I out (min) to I out (max) Temperature regulation 0.005 0.02 ±%/ C V in = V in (nom) ; I out = I out (max) Output current continuous Iout 1.8 V 0 15 Adc Iout 3.3 V 0 15 Adc Output current - short circuit I sc 1.8 V 8 A rms Continuous, unit auto recovers I sc 3.3 V 8 A rms from short, V o < 100 mv See Application Note 137 Load transient response - V dynamic 1.8 V 40 75 mv Peak deviation for 50% to 75% peak deviation V dynamic 3.3 V 40 75 mv step load, di/dt = 100 ma/µs Load transient response - T recovery 20 50 µs Settling time to within 1% of recovery output set point voltage for 50% to 75% load step External load capacitance C ext 1.8 V 0 3,300 µf Higher load capacitance values C ext 3.3 V 0 3,300 µf may be possible. Contact Artesyn Technologies for details Output voltage - noise Vp-p 30 50 mv p-p Measurement bandwidth 20 MHz. Vrms 10 15 mv rms See Application Note 137 for measurement set-up details
11 of 32 LQD30A48-3V3-1V8J Model Protection and Control Features Overvoltage trip voltage V ov 1.8V 1.98 2.34 Vdc Non-latching. See Application Vov 3.3V 3.63 4.29 Vdc Note 137 for details Overcurrent limit inception I oc 15.5 17.6 20 A dc V o = 90% of V o (nom) Output voltage trim range 110 % Trim up (% of V o nom ) Limit O/P to 76.5 W 90 Trim down (% of V o nom ) See Application Note 137 for details of trim equations and trim curves LQD30A48-3V3-1V8J Model Efficiency Efficiency h 90.5 % I out 3.3 V = 50% Iout (max), I out 1.8 V = 100% Iout (max), V in = V in (nom) Efficiency h 90.5 % I out 3.3 V = 100% I out (max), I out 1.8 V = 50% I out (max), V in = V in (nom) Efficiency h 88.5 90.5 % I out 3.3 V = 100% I out (max), I out 1.8 V = 100% I out (max), V in = V in (nom)
12 of 32 LQD30A48-3V3-2V5J Model Input Characteristics Input current - operating I in 2.04 Adc V in = V in (nom) ; I out = I out (max.) ; 100% load on each output Input current - maximum I in (max.) 3.00 Adc V in = V in (min) ; I out = I out (max.) ; 100% load on each output Input capacitor ripple current I in (ripple) 30 ma rms I out = I out (max.), measured 60 ma pk-pk with external filter. See Application Note 137 for details Reflected ripple current I in (ref) 3 ma rms I out = I out (max.), measured 5 ma pk-pk with external filter. See Application Note 137 for details Input capacitance - C input 3 µf Internal to converter internal filter Input capacitance - C bypass 33 µf Recommended customer external bypass added capacitance, <0.7Ω ESR LQD30A48-3V3-2V5J Model Electrical Characteristics - O/P Nominal set-point voltage Vo (nom) 2.5 V 2.46 2.50 2.54 Vdc V in = V in (nom) ; Vo (nom) 3.3 V 3.25 3.30 3.35 Vdc I out = I out (nom) Total regulation band Vo 2.5 V 2.42 2.58 Vdc For all line, static load and Vo 3.3 V 3.20 3.40 Vdc temperature until end of life Line regulation Vo 2.5 V 0.3 % Vo 3.3 V 0.3 % I out = I out (nom); V in (min) to V in (max) Load regulation Vo 2.5 V 0.5 % Vo 3.3 V 0.5 % V in = V in (nom); I out (min) to I out (max) Temperature regulation 0.005 0.02 ±%/ C V in = V in (nom) ; I out = I out (max) Output current continuous Iout 2.5 V 0 15 Adc Iout 3.3 V 0 15 Adc Output current - short circuit I sc 2.5 V 8 A rms Continuous, unit auto recovers I sc 3.3 V 8 A rms from short, V o < 100 mv See Application Note 137 Load transient response - V dynamic 2.5 V 40 75 mv Peak deviation for 50% to 75% peak deviation V dynamic 3.3 V 40 75 mv step load, di/dt = 100 ma/µs Load transient response - T recovery 20 50 µs Settling time to within 1% of recovery output set point voltage for 50% to 75% load step External load capacitance C ext 2.5 V 0 3,300 µf Higher load capacitance values C ext 3.3 V 0 3,300 µf may be possible. Contact Artesyn Technologies for details Output voltage - noise Vp-p 30 50 mv p-p Measurement bandwidth 20 MHz. Vrms 10 15 mv rms See Application Note 137 for measurement set-up details
13 of 32 LQD30A48-3V3-2V5J Model Protection and Control Features Overvoltage trip voltage V ov 2.5 V 2.75 3.25 Vdc Non-latching. See Application Vov 3.3 V 3.63 4.29 Vdc Note 137 for details Overcurrent limit inception I oc 15.5 17.6 20 Adc V o = 90% of V o (nom) Output voltage trim range 110 % Trim up (% of V o nom ) Limit O/P to 87 W 90 Trim down (% of V o nom ) See Application Note 137 for details of trim equations and trim curves LQD30A48-3V3-2V5J Model Efficiency Efficiency h 91.5 % I out 3.3 V = 50% Iout (max), I out 2.5 V = 100% Iout (max), V in = V in (nom) Efficiency h 91.5 % I out 3.3 V = 100% I out (max), I out 2.5 V = 50% I out (max), V in = V in (nom) Efficiency h 89 91 % I out 3.3 V = 100% I out (max), I out 2.5 V = 100% I out (max), V in = V in (nom)
14 of 32 LQD25A48-5V0-3V3J Model Input Characteristics Input current - operating I in 2.35 Adc V in = V in (nom) ; I out = I out (max.) ; 100% load on each output Input current - maximum I in (max.) 3.40 Adc V in = V in (min) ; I out = I out (max.) ; 100% load on each output Input capacitor ripple current I in (ripple) 30 ma rms I out = I out (max.), measured 60 ma pk-pk with external filter. See Application Note 137 for details Reflected ripple current I in (ref) 3 ma rms I out = I out (max.), measured 5 ma pk-pk with external filter. See Application Note 137 for details Input capacitance - C input 3 µf Internal to converter internal filter Input capacitance - C bypass 33 µf Recommended customer external bypass added capacitance, <0.7Ω ESR LQD25A48-5V0-3V3J Model Electrical Characteristics - O/P Nominal set-point voltage Vo (nom) 5.0 V 4.92 5.00 5.08 Vdc V in = V in (nom) ; Vo (nom) 3.3 V 3.25 3.30 3.35 Vdc I out = I out (nom) Total regulation band Vo 5.0 V 4.85 5.00 5.15 Vdc For all line, static load and Vo 3.3 V 3.20 3.40 Vdc temperature until end of life Line regulation Vo 5.0 V 0.3 % Vo 3.3 V 0.3 % I out = I out (nom); V in (min) to V in (max) Load regulation Vo 5.0 V 0.5 % Vo 3.3 V 0.5 % V in = V in (nom); I out (min) to I out (max) Temperature regulation 0.005 0.02 ±%/ C V in = V in (nom) ; I out = I out (max) Output current continuous Iout 5.0 V 0 10 Adc Iout 3.3 V 0 15 Adc Output current - short circuit I sc 5.0 V 4 A rms Continuous, unit auto recovers I sc 3.3 V 6 A rms from short, V o < 100 mv See Application Note 137 Load transient response - V dynamic 5.0 V 120 200 mv Peak deviation for 50% to 75% peak deviation V dynamic 3.3 V 40 75 mv step load, di/dt = 100 ma/µs Load transient response - T recovery 20 50 µs Settling time to within 1% of recovery output set point voltage for 50% to 75% load step External load capacitance C ext 5.0 V 0 3,300 µf Higher load capacitance values C ext 3.3 V 0 3,300 µf may be possible. Contact Artesyn Technologies for details Output voltage - noise Vp-p 30 50 mv p-p Measurement bandwidth 20 MHz. Vrms 10 15 mv rms See Application Note 137 for measurement set-up details
15 of 32 LQD25A48-5V0-3V3J Model Protection and Control Features Overvoltage trip voltage V ov 5.0 V 5.50 6.50 Vdc Non-latching. See Application Vov 3.3 V 3.63 4.29 Vdc Note 137 for details Overcurrent limit inception I oc 5.0 V 10.5 11.7 13 Adc V o = 90% of V o (nom) I oc 3.3 V 15.5 17.6 20 Adc Output voltage trim range 110 % Trim up (% of V o nom ) Limit O/P to 99.5 W 90 Trim down (% of V o nom ) See Application Note 137 for details of trim equations and trim curves LQD25A48-5V0-3V3J Model Efficiency Efficiency h 91 % I out 5.0 V = 50% Iout (max), I out 3.3 V = 100% Iout (max), V in = V in (nom) Efficiency h 91 % I out 5.0 V = 100% I out (max), I out 3.3 V = 50% I out (max), V in = V in (nom) Efficiency h 88.5 91 % I out 5.0 V = 100% I out (max), I out 3.3 V = 100% I out (max), V in = V in (nom)
16 of 32 LQD30A48-3V3-1V2J Model 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM AMBIENT TEMPERA TURE (ºC) AMBIENT TEMPERA TURE (ºC) Figure 1.1: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 4 Iout1 = Iout2, Vin = 48 V Figure 1.2: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 1 Iout1 = Iout2, Vin = 48 V EFFICIENCY (%) 92 90 88 86 84 EFFICIENCY (%) 92 90 88 86 84 35 Vin 48 Vin 75 Vin 82 35 43 51 59 67 75 82 0/15 3/12 6/9 9/6 12/3 15/0 INPUT VOLT AGE (V) Figure 2: Efficiency vs. Line Figure 3: Efficiency vs. Crossload / 100 EFFICIENCY (%) 90 80 70 35 Vin 48 Vin 75 Vin 60 0 3 6 9 12 15 Figure 4: Efficiency vs. Load Iout1 = Iout2 Figure 5: Typical Start-up Top ( and ), Bottom (Vin)
17 of 32 LQD30A48-3V3-1V2J Model Figure 6: Bottom (Remote ON/OFF), Top ( and ) Figure 7: Current Limit characteristic () Figure 8: Current Limit characteristic () Figure 9: Output Ripple () Figure 10: Output Ripple () Figure 11: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change ()
18 of 32 LQD30A48-3V3-1V2J Model Figure 12: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change () Figure 13: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change () Figure 14: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change ()
19 of 32 LQD30A48-3V3-1V5J Model 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM AMBIENT TEMPERA TURE (ºC) AMBIENT TEMPERA TURE (ºC) Figure 15.1: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 4 Iout1 = Iout2, Vin = 48 V Figure 15.2: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 1 Iout1 = Iout2, Vin = 48 V 92 92 EFFICIENCY (%) 90 88 86 84 EFFICIENCY (%) 90 88 86 84 35 Vin 48 Vin 75 Vin 82 35 43 51 59 67 75 82 0/15 3/12 6/9 9/6 12/3 15/0 INPUT VOLT AGE (V) Figure 16: Efficiency vs. Line Figure 17: Efficiency vs. Crossload / 100 EFFICIENCY (%) 90 80 70 35 Vin 48 Vin 75 Vin 60 0 3 6 9 12 15 Figure 18: Efficiency vs. Load Iout1 = Iout2 Figure 19: Typical Start-up Top ( and ), Bottom (Vin)
20 of 32 LQD30A48-3V3-1V5J Model Figure 20: Bottom (Remote ON/OFF), Top ( and ) Figure 21: Current Limit characteristic () Figure 22: Current Limit characteristic () Figure 23: Output Ripple () Figure 24: Output Ripple () Figure 25: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change ()
21 of 32 LQD30A48-3V3-1V5J Model Figure 26: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change () Figure 27: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change () Figure 28: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change ()
22 of 32 LQD30A48-3V3-1V8J Model 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM AMBIENT TEMPERA TURE (ºC) AMBIENT TEMPERA TURE (ºC) Figure 29.1: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 4 Iout1 = Iout2, Vin = 48 V Figure 29.2: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 1 Iout1 = Iout2, Vin = 48 V EFFICIENCY (%) 92 90 88 86 84 EFFICIENCY (%) 92 90 88 86 84 35 Vin 48 Vin 75 Vin 82 35 43 51 59 67 75 INPUT VOLT AGE (V) 82 0/15 3/12 6/9 9/6 12/3 15/0 Figure 30: Efficiency vs. Line Figure 31: Efficiency vs. Crossload / 100 EFFICIENCY (%) 90 80 70 35 Vin 48 Vin 75 Vin 60 0 3 6 9 12 15 Figure 32: Efficiency vs. Load Iout1 = Iout2 Figure 33: Typical Start-up Top ( and ), Bottom (Vin)
23 of 32 LQ30A48D3V3-1V8J Model Figure 34: Bottom (Remote ON/OFF), Top ( and ) Figure 35: Current Limit Characteristic () Figure 36: Current Limit Characteristic () Figure 37: Output Ripple () Figure 38 Output Ripple () Figure 39: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change ()
24 of 32 LQ30A48D3V3-1V8J Model Figure 40: Typical Transient Response 75%- 50%, 100 ma/µs Step Load Change () Figure 41: Typical Transient Response 50%- 75%, 100 ma/µs Step Load Change () Figure 42: Typical Transient Response 50%- 75%, 100 ma/µs Step Load Change ()
25 of 32 LQD30A48-3V3-2V5J Model 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM AMBIENT TEMPERA TURE (ºC) AMBIENT TEMPERA TURE (ºC) Figure 43.1: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 4 Iout1 = Iout2, Vin = 48 V Figure 43.2: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 1 Iout1 = Iout2, Vin = 48 V EFFICIENCY (%) 92 90 88 86 84 EFFICIENCY (%) 93 91 89 87 85 35 Vin 48 Vin 75 Vin 82 35 43 51 59 67 75 83 0/15 3/12 6/9 9/6 12/3 15/0 INPUT VOLT AGE (V) Figure 44: Efficiency vs. Line Figure 45: Efficiency vs. Crossload / 100 EFFICIENCY (%) 90 80 70 35 Vin 48 Vin 75 Vin 60 0 3 6 9 12 15 Figure 46: Efficiency vs. Load Iout1 = Iout2 Figure 47: Typical Start-up Top ( and ), Bottom (Vin)
26 of 32 LQD30A48-3V3-2V5J Model Figure 48: Bottom (Remote ON/OFF), Top ( and ) Figure 49: Current Limit characteristic () Figure 50: Current Limit characteristic () Figure 51: Output Ripple () Figure 52: Output Ripple () Figure 53: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change ()
27 of 32 LQD30A48-3V3-2V5J Model Figure 54: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change () Figure 55: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change () Figure 56: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change ()
28 of 32 LQD25A48-5V0-3V3J Model 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM 16 14 12 10 8 6 4 2 0 25 35 45 55 65 75 85 2.0m/s (400 LFM) 1.5 m/s (300 LFM 1.0 m/s (200 LFM 0.5 m/s (100 LFM AMBIENT TEMPERA TURE (ºC) AMBIENT TEMPERA TURE (ºC) Figure 57.1: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 4 Iout2 = 67% of lout1, Vin = 48 V Figure 57.2: Maximum Current Per Output vs. Ambient Temperature and Airflow from Pin 3 to Pin 1 Iout2 = 67% of lout1, Vin = 48 V 92 93 EFFICIENCY (%) 90 88 86 84 EFFICIENCY (%) 91 89 87 85 35 Vin 48 Vin 75 Vin 82 35 43 51 59 67 75 83 0/10 3/8 6/6 9/4 12/2 15/0 INPUT VOLT AGE (V) Figure 58: Efficiency vs. Line Figure 59: Efficiency vs. Crossload / 100 EFFICIENCY (%) 90 80 70 35 Vin 48 Vin 75 Vin 60 0 3 6 9 12 15 Figure 60: Efficiency vs. Load Iout2 = 67% of Iout1 Figure 61: Typical Start-up Top ( and ), Bottom (Vin)
29 of 32 LQD25A48-5V0-3V3J Model Figure 62: Bottom (Remote ON/OFF), Top ( and ) Figure 63: Current Limit characteristic () Figure 64: Current Limit characteristic () Figure 65: Output Ripple () Figure 66: Output Ripple () Figure 67: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change ()
30 of 32 LQD25A48-5V0-3V3J Model Figure 68: Typical Transient Response 75%-50%, 100 ma/µs Step Load Change () Figure 69: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change () Figure 70: Typical Transient Response 50%-75%, 100 ma/µs Step Load Change ()
31 of 32 INPUT OUTPUT VOLTAGE OUTPUT CURRENT OVP TYPICAL MODEL VOLTAGE OP1 OP2 1 2 1 2 EFFICIENCY NUMBER (2) 36-75 Vdc 1.2 V 3.3 V 15 A 15 A 1.5 V 4.0 V 90% LQD30A48-3V3-1V2J 36-75 Vdc 1.5 V 3.3 V 15 A 15 A 1.8 V 4.0 V 90.5% LQD30A48-3V3-1V5J 36-75 Vdc 1.8 V 3.3 V 15 A 15 A 2.0 V 4.0 V 90.5% LQD30A48-3V3-1V8J 36-75 Vdc 2.5 V 3.3 V 15 A 15 A 3.0 V 4.0 V 91% LQD30A48-3V3-2V5J 36-75 Vdc 3.3 V 5.0 V 15 A 10 A 4.0 V 6.0 V 91% LQD25A48-5V0-3V3J 1.45 (36.8) 0.350 (8.89) 0.725 ±0.020 (18.42 ±0.51) 0.145 ±0.020 (3.68 ±0.51) 0.350 (8.89) 2.30 (58.4) 2.000 (50.80) TOP VIEW 1 7 2 6 5 3 4 ø0.040±0.002 (ø1.02 ±0.05) (7 pls) 0.250 (6.35) 0.250 (6.35) 0.125 (3.18) 0.250 (6.35) HEIGHT (See Option Table) CLEARANCE (See Option Table) 0.188 (4.78) 1.45 (36.8) 0.350 (8.89) 0.725 ±0.020 (18.42 ±0.51) 0.145 ±0.020 (3.68 ±0.51) 0.350 (8.89) 2.30 (58.4) 2.000 (50.80) 1 7 2 6 5 3 4 0.250 (6.35) ø0.054±0.003 (ø1.37 ±0.08) (7 pls) 0.250 (6.35) 0.250 (6.35) 0.125 (3.18) Dimensions in Inches (mm) Tolerances (unless otherwise spe x.xx ±0.02 (x.x ±0.5) x.xxx ±0.010 (x.xx ±0.25) Pin Connections Pin No. Function 1 + Vin 2 ON/OFF 3 - Vin 4 O/P 1 5 Output Return 6 Trim 7 O/P 2 Dimension Options Option Clearance Height A 0.030 (0.76) min. 0.300 (7.62) max. E 0.070 (1.78) min. 0.340 (8.64) max. Figure 71: Dimensions and Pinout
QUARTER-BRICK SERIES Embedded Power for Business-Critical Continuity 32 of 32 Notes 1 The control pin is referenced to Vin-. 2 The part number cannot exceed 18 characters. If the desired part number with options contains 19 characters then the last dash - in the part number is removed i.e. LQD25A48-5V0-3V3RAJ becomes LQD25A48-5V03V3RAJ. If the desired part number with options contains 20 characters then all dashes - are removed, i.e. LQD25A48-5V0-3V3RANJ becomes LQD25A485V03V3RANJ. CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is accessible only to trained personnel. The user must provide the recommended fusing in order to comply with safety approvals. Americas 5810 Van Allen Way Carlsbad, CA 92008 USA Telephone: +1 760 930 4600 Facsimile: +1 760 930 0698 Europe (UK) Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX United Kingdom Telephone: +44 (0) 1384 842 211 Facsimile: +44 (0) 1384 843 355 Asia (HK) 16th - 17th Floors, Lu Plaza 2 Wing Yip Street, Kwun Tong Kowloon, Hong Kong Telephone: +852 2176 3333 Facsimile: +852 2176 3888 For global contact, visit: www.powerconversion.com technicalsupport@powerconversion.com While every precaution has been taken to ensure accuracy and completeness in this literature, Emerson Network Power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. Emerson Network Power. The global leader in enabling business-critical continuity. AC Power Connectivity DC Power Embedded Power Inbound Power Integrated Cabinet Solutions Outside Plant Precision Cooling Site Monitoring and Services EmersonNetworkPower. com Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. 2007 Emerson Electric Co.