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product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 1 technical specification PQ50073HZB60 contents operational features ? high effciency, 93% at full rated load current ? delivers 438w of output power with minimal derating ? operating input voltage range: 44-52vdc ? fixed frequency switching provides predictable emi output voltage trim range of -50%, +10% protection features ? input under-voltage lockout ? output current limit and short circuit protection ? active back bias limit ? output over-voltage protection ? protection from permanent damage and hazardous conditions ? thermal shutdown PQ50073HZB60 model mechanical features ? industry standard half brick pin-out confguration ? standard size baseplated:2.40" x 2.30" (60.6 x 63.1mm) ? total height only 0.495 (12.6mm) ? baseplated weight: 4.3oz (123g) typical ? flanged pins designed to permit surface mount soldering (avoid wave solder) using fpip technique the PQ50073HZB60 powerqor zeta half-brick converter is a next-generation, board-mountable, isolated, fxed switching frequency dc/dc converter. the zeta series offers industry leading power density for standard isolated dc/dc converters with both a wide input range and a tightly regulated output. targeted for use in intermediate bus architectures, this module supplies an isolated step down voltage from 44-52v to 7.3v and provides 2,250vdc isolation, tolerance of output current transients up to 85a, and more available power and higher effciency than most competitive bus converters. rohs compliant (see last page). safety features ? ul 60950-1:2007 ? can/csa-c22.2 no. 60950-1:2007 ? en60950-1:a12:2011 page no. electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 standards & qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 technical figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 applications section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 control features ? on/off control referenced to input side 44-52v 7.3v 60a 438w 2250v dc half-brick input output current max power isolation dc-dc converter
product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 2 input: 44-52v output: 7.3v current: 60a package: half-brick baseplated mechanical diagram mech02 notes 1) m3 screws used to bolt units baseplate to other surfaces (such as a heatsink) must not exceed 0.100 (2.54 mm) depth below the surface of the baseplate. 2) applied torque per screw should not exceed 6in-lb. (0.7 nm). 3) baseplate fatness tolerance is 0.004 (.10mm) tir for surface. 4) pins 1, 2, 4, and 6-8 are 0.040 (1.02mm) diameter, with 0.080 (2.03mm) diameter standoff shoulders. 5) pins 5 and 9 are 0.080 (2.03 mm) diameter with 0.125 (3.18 mm) diameter standoff shoulders. 6) other pin extension lengths available. recommended pin length is 0.03 (0.76mm) greater than the pcb thickness. 7) all pins: material - copper alloy, finish - matte tin over nickel plate 8) undimensioned components are shown for visual reference only. 9) all dimensions in inches[mm] tolerances: x.xx +/-0.02 in. (x.x +/- 0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) 10) baseplated weight: 4.3oz (123g) typical 11) workmanship: meets or exceeds ipc-a-610c class ii 12) ul/tuv standards require a clearance greater than 0.04 (1.02mm) between input and output for basic insulation. this issue should be considered if any copper traces are on the top side of the users board. note that the ferrite cores are considered part of the input/ primary circuit pin designations pin name function 1 vin(+) positive input voltage 2 on/off ttl input to turn converter on and off, referenced to vin(C), with internal pull up. 4 vin(C) negative input voltage 5 vout(C) negative output voltage 6 sense (-) negative remote sense (see note 1) 7 trim output voltage trim (see note 2) 8 sense (+) positive remote sense (see note 3) 9 vout(+) positive output voltage notes: 1) sense(C) should be connected to vout(C) either remotely or at the converter. 2) leave trim pin open for nominal output voltage. 3) sense(+) should be connected to vout(+) either remotely or at the converter. .400[10.16] .700[17.78] 1.000[25.4] 1.400[35.56] .180 [4.57] see note 3 bottomside clearance .044 .027 1.12 0.68 [ ] side view overall height .495 .024 12.57 0.6 [ ] top view m3 threaded insert 4 places see note 1 .50[12.7] .400[10.16] 1.400 [35.56] .19 [4.8] 1.90 [48.3] 2.30 [58.4] 2.40 [61] 1 2 4 5 6 7 8 9
product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 3 input: 44-52v output: 7.3v current: 60a package: half-brick electrical characteristics PQ50073HZB60 electrical characteristics ta = 25 c, airfow rate = 300 lfm, vin = 48v dc unless otherwise noted; full operating temperature range is -40 c to +100 c baseplate temperature with appropriate power derating. specifcations subject to change without notice. parameter min. typ. max. units notes & conditions absolute maximum ratings input voltage non-operating -1 80 v continuous operating 60 v continuous isolation voltage input to output 2250 v operating temperature -40 100 c storage temperature -55 125 c voltage at on/off input pin -2 18 v input characteristics operating input voltage range 44 48 52 v input under-voltage lockout turn-on voltage threshold 34.0 35.5 37.0 v turn-off voltage threshold 32.5 34 35.5 v lockout voltage hysteresis 1.5 v maximum input current 20 a 100% load, 44v vin, trimmed up 10% no-load input current 210 ma disabled input current 50 40 ma input refected ripple current 225 ma rms thru 4.7h inductor input terminal ripple current 5 ma rms recommended input fuse 30 a fast acting external fuse recommended recommended external input capacitance 330 f typical esr 0.1-0.2 input filter component values (l\c) 0.5\11.0 h\f output characteristics output voltage set point 7.230 7.300 7.360 v output voltage regulation over line 0.20\14 %\mv over load 0.20\14 %\mv over temperature 60 90 mv total output voltage range 7.170 7.430 v over sample, line, load, temperature & life output voltage ripple and noise 20mhz bandwidth; see note 2 peak-to-peak 80 mv full load; 5mf electrolytic capacitance rms 15 mv full load; 5mf electrolytic capacitance operating output current range 60 a subject to thermal derating output dc current-limit inception 90 100 110 a output voltage 10% low output dc current-limit shutdown voltage 3.0 v see note 3 back-drive current limit while enabled 24 a negative current drawn from output back-drive current limit while disabled 3 5 ma negative current drawn from output maximum output capacitance electrolytic 12 mf nominal vout at full load (resistive load) efficiency 100% load 93 % 50% load 93 % note 1: for applications requiring reduced output voltage ripple and noise, consult synqor applications support (e-mail: support@synqor.com) note 2: unit can withstand output current transients below the current limit threshold for up to 10ms. subject to thermal derating. note 3: if the output voltage falls below the output dc current limit shutdown voltage for more than 50ms, then the unit will enter into hiccup mode, with a 500ms off-time. technical specifications
input: 44-52v output: 7.3v current: 60a package: half-brick product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 4 input: 44-52v output: 7.3v current: 60a package: half-brick PQ50073HZB60 electrical characteristics (continued) ta = 25 c, airfow rate = 300 lfm, vin = 48v dc unless otherwise noted; full operating temperature range is -40 c to +100 c baseplate temperature with appropriate power derating. specifcations subject to change without notice. parameter min. typ. max. units notes & conditions dynamic characteristics output voltage during load current transient step change in output current (0.1a/s) 150 mv 50% to 75% to 50% iout max, 470 f load cap step change in output current (5a/s) 775 mv settling time 3 ms to within 1% vout nom turn-on transient turn-on time 43 47 51 ms full load, vout=90% nom first startup delay 2 ms output voltage overshoot 0 % max output capacitance and full load isolation characteristics isolation voltage (dielectric strength) 2250 v isolation resistance 30 m isolation capacitance (input to output) 1000 pf see note 1 temperature limits for power derating curves semiconductor junction temperature 125 c package rated to 150c board temperature 125 c ul rated max operating temp 130c transformer temperature 125 c baseplate temperature 100 c see figure 3 for derating curve feature characteristics switching frequency(isolation stage) 125 khz switching frequency (regulation stage) 500 khz on/off control (option p) on-state voltage 2.4 18 v off-state voltage -2.0 0.8 on/off control (option n) onstate voltage -2.0 0.8 v off-state voltage 2.4 18 on/off control (either option) application notes; figures a & b pull-up voltage 4.5 5.0 5.5 v pull-up resistance 10 k output voltage trim range -50 + 10 % measured across pins 8 & 4; figure b output voltage remote sense range 10 % measured across pins 8 & 4 output over-voltage protection 8.1 8.4 8.7 v over full temperature range over-temperature shutdown otp trip point 125 c average pcb temperature; auto recovery over-temperature shutdown restart hysteresis 10 c reliability characteristics calculated mtbf (telcordia) 2.1 10 6 hrs. tr-nwt-000332; 80% load, 300lfm, 40c ta calculated mtbf (mil-217) 1.9 10 6 hrs. mil-hdbk-217f; 80% load, 300lfm, 40c ta field demonstrated mtbf 10 6 hrs. see our website for details note 1: higher values of isolation capacitance can be added external to the module. electrical characteristics technical specifications
product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 5 input: 44-52v output: 7.3v current: 60a package: half-brick standards & qualifications standards compliance & qualification testing parameter notes & conditions standards compliance ul 60950-1:2007 basic insulation can/csa-c22.2 no. 60950-1:2007 en60950-1:a12:2011 iec 61000-4-2 esd test, 8 kv - np, 15 kv air - np (normal performance) note: an external input fuse must always be used to meet these safety requirements. contact synqor for offcial safety certifcates on new releases or download from the synqor website. parameter # units test conditions qualification testing life test 32 95% rated vin and load, units at derating point, 1000 hours vibration 5 10-55 hz sweep, 0.060" total excursion, 1 min./sweep, 120 sweeps for 3 axis mechanical shock 5 100g minimum, 2 drops in x, y and z axis temperature cycling 10 -40 c to 100 c, unit temp. ramp 15 c/min., 500 cycles power/thermal cycling 5 toperating = min to max, vin = min to max, full load, 100 cycles design marginality 5 tmin-10 c to tmax+10 c, 5 c steps, vin = min to max, 0-105% load humidity 5 85 c, 95% rh, 1000 hours, continuous vin applied except 5 min/day solderability 15 pins mil-std-883, method 2003 technical specifications
product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 6 input: 44-52v output: 7.3v current: 60a package: half-brick 0 10 20 30 40 50 60 25 40 55 70 85 ambient air temperature ( c ) iout (a) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 60 65 70 75 80 85 90 95 100 0 5 10 15 20 25 30 35 40 45 50 55 60 load current (a) efficiency (%) 44 vin 48 vin 52 vin 0 10 20 30 40 50 60 0 5 10 15 20 25 30 35 40 45 50 55 60 load current (a) power dissipation (w) 44 vin 48 vin 52 vin semiconductor junction temperature is within 1 c of surface temperature figure 1: effciency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25c. figure 2: power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25c. figure 3: maximum output power derating curves vs. ambient air temperature for airfow rates of 100 lfm through 400 lfm with air fowing from pin 4 to pin 1 (nominal input voltage). figure 4: thermal plot of converter at 32.1 amp load current (234w) with 55c air fowing at the rate of 200 lfm. air is fowing from pin 4 to pin 1 (nominal input voltage). figure 5: turn-on transient at full load (resistive load) (10 ms/div). input voltage pre-applied. top trace: vout (2v/div). bottom trace: on/off input (5v/div) figure 6: turn-on transient at zero load (10 ms/div). top trace: vout (2v/div). bottom trace: on/off input (5v/div) technical figures technical figures
input: 44-52v output: 7.3v current: 60a package: half-brick product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 7 input: 44-52v output: 7.3v current: 60a package: half-brick figure 7: output voltage response to step-change in load current (50%- 75%-50% of iout(max); di/dt = 0.1a/s). load cap: 5000f, ceramic output capacitance. top trace: vout (200mv/div). bottom trace: iout (10a/div). figure 8: output voltage response to step-change in load current (0% - 100% of iout(max): di/dt = 5a/s). load cap: 5000f, electrolytic output capacitance. top trace: vout (200mv/div). bottom trace: iout (20a/div). figure 9: test set-up diagram showing measurement points for input terminal ripple current (figure 10), input refected ripple current (figure 11) and output voltage ripple (figure 12). figure 10: input terminal ripple current, ic, at full rated output current and 55v input voltage with 4.7h source impedance and 330f electrolytic capacitor (ch1 500ma/div). (see figure 9). figure 11: input refected ripple current, is, through a 4.7 h source inductor at 55v input voltage and rated load current (20 ma/div). (see figure 9). figure 12: output voltage ripple at nominal input voltage and rated load current (200 mv/div). load capacitance: two 1.0f ceramic capacitors and 5000f electrolytic capacitor. bandwidth: 20 mhz. (see figure 9). technical figures
input: 44-52v output: 7.3v current: 60a package: half-brick input: 44-52v output: 7.3v current: 60a package: half-brick product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 8 input: 44-52v output: 7.3v current: 60a package: half-brick 0 1 2 3 4 5 6 7 8 0 20 40 60 80 100 120 load current (a) output voltage (v) 48 vin figure 13: load current (20a/div) as a function of time when the converter attempts to turn on into a 1 m short circuit. figure 14: output voltage vs. load current showing typical current limit curve and converter shutdown point. technical figures
product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 9 input: 44-52v output: 7.3v current: 60a package: half-brick applications section applications section basic operation and features this converter series uses a two-stage power conversion topology. the frst stage keeps the output voltage constant over variations in line, load, and temperature. the second stage uses a transformer to provide the functions of input/output isolation and voltage step-down to achieve the low output voltage required. both the frst stage and the second stage switch at a fxed frequency for predictable emi performance. rectifcation of the transformers output is accomplished with synchronous rectifers. these devices, which are mosfets with a very low on-state resistance, dissipate signifcantly less energy than schottky diodes, enabling the converter to achieve high effciency. dissipation throughout the converter is so low that it does not require a heatsink or even a baseplate for operation in many applications; however, adding a heatsink provides improved thermal derating performance in extreme situations. to further withstand harsh environments and thermally demanding applications, certain models are available totally encased. see ordering information page for available thermal design options. synqor half-brick converters use the industry standard footprint and pin-out. figure a: various circuits for driving the on/off pin. open collector enable circuit remote enable circuit direct logic drive negative logic (permanently enabled) (permanently enabled) on/off vin( _ ) on/off on/off vin( _ ) on/off 5v ttl/ cmos vin( _ ) vin( _ ) positive logic on/off vin( _ ) ttl 5v 10k 50k on/off v in( _ ) 18v(max) figure b: internal on/off pin circuitry. control features remote on/off (pin 2): the on/off input, pin 2, permits the user to control when the converter is on or off. this input is referenced to the return terminal of the input bus, vin(-). in negative logic versions, the on/off signal is active low (meaning that a low voltage turns the converter on). in positive logic versions, the on/off input is active high (meaning that a high voltage turns the converter on). figure a details possible circuits for driving the on/off pin. figure b is a detailed look of the internal on/off circuitry. see ordering information page for available enable logics. remote sense pins 8(+) and 6(-): the sense(+) and sense(-) inputs correct for voltage drops along the conductors that connect the converters output pins to the load. pin 8 should be connected to vout(+) and pin 6 should be connected to vout(-) at the point on the board where regulation is desired. if these connections are not made, the converter will deliver an output voltage that is slightly higher than its specifed value. note: the output over-voltage protection circuit senses the voltage across the output (pins 9 and 5) to determine when it should trigger, not the voltage across the converters sense leads (pins 8 and 6). therefore, the resistive drop on the board should be small enough so that output ovp does not trigger, even during load transients.
input: 44-52v output: 7.3v current: 60a package: half-brick product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 10 input: 44-52v output: 7.3v current: 60a package: half-brick applications section 0.0 0.1 1.0 10.0 100.0 1,000.0 10,000.0 0 5 10 15 20 25 30 35 40 45 50 trim resistance (kohms) % increase in vout % decrease in vout figure c: trim graph. protection features input under-voltage lockout: the converter is designed to turn off when the input voltage is too low, helping to avoid an input system instability problem, which is described in more detail in the application note titled input system instability on the synqor website. the lockout circuitry is a comparator with dc hysteresis. when the input voltage is rising, it must exceed the typical turn-on voltage threshold value* before the converter will turn on. once the converter is on, the input voltage must fall below the typical turn-off voltage threshold value before the converter will turn off. output current limit: if the output current exceeds the output dc current limit inception point*, then a fast linear current limit controller will reduce the output voltage to maintain a constant output current. if as a result, the output voltage falls below the output dc current limit shutdown voltage* for more than 50ms, then the unit will enter into hiccup mode, with a 500ms off-time. the unit will then automatically attempt to restart. back-drive current limit: if there is negative output current of a magnitude larger than the back-drive current limit while enabled specifcation*, then a fast back-drive limit controller will increase the output voltage to maintain a constant output current. if this results in the output voltage exceeding the output over- voltage protection threshold*, then the unit will shut down. output over-voltage limit: if the voltage across the output pins exceeds the output over-voltage protection threshold, the converter will immediately stop switching. this prevents damage to the load circuit due to 1) excessive series resistance in output current path from converter output pins to sense point, 2) a release of a short-circuit condition, or 3) a release of a current limit condition. load capacitance determines exactly how high the output voltage will rise in response to these conditions. after 500ms the converter will automatically restart for all but the s feature set option, which is latching and will not restart until input power is cycled or the on/off input is toggled. over-temperature shutdown: a temperature sensor on the converter senses the average temperature of the module. the thermal shutdown circuit is designed to turn the converter off when the temperature at the sensed location reaches the over- temperature shutdown value*. it will allow the converter to turn on again when the temperature of the sensed location falls by the amount of the over-temperature shutdown restart hysteresis value*. startup inhibit period: the startup inhibit period ensures that the converter will remain off for approximately 500ms when it is shut down due to a fault. this generates a 2 hz hiccup mode, which prevents the converter from overheating. in all, there are three ways that the converter can be shut down, initiating a startup inhibit period: ? output over-voltage protection ? current limit ? short circuit protection * see electrical characteristics section. to increase the output voltage, the user should connect a resistor between pin 7 (trim) and pin 8 (sense(+) input). for a desired increase of the nominal output voltage, the value of the resistor should be: r trim-up = ( v nominal C 2 ) v desired + v nominal k 1.225 v desired C v nominal the trim graph in figure c shows the relationship between the trim resistor value and rtrim-up and rtrim-down, showing the total range the output voltage can be trimmed up or down. r trim-down = ( 100% C 2 ) k % where % = | v nominal C v desired | 100% v nominal output voltage trim (pin 7): the trim input permits the user to adjust the output voltage across the sense leads up or down according to the trim range specifcations. synqor uses industry standard trim equations. to decrease the output voltage, the user should connect a resistor between pin 7 (trim) and pin 6 (sense(C) input). for a desired decrease of the nominal output voltage, the value of the resistor should be: note: the trim feature does not affect the voltage at which the output over-voltage protection circuit is triggered. trimming the output voltage too high may cause the over-voltage protection circuit to engage, particularly during transients. it is not necessary for the user to add capacitance at the trim pin. the node is internally fltered to eliminate noise. total dc variation of vout: for the converter to meet its full specifcations, the maximum variation of the dc value of vout, due to both trimming and remote load voltage drops, should not be greater than that specifed for the output voltage trim range.
product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 11 input: 44-52v output: 7.3v current: 60a package: half-brick applications section application considerations input system instability: this condition can occur because any dc-dc converter appears incrementally as a negative resistance load. a detailed application note titled input system instability is available on the synqor website which provides an understanding of why this instability arises, and shows the preferred solution for correcting it. application circuits: a typical circuit diagram, figure d below details the input fltering and voltage trimming. input filtering and external input capacitance: figure e below shows the internal input flter components. this flter dramatically reduces input terminal ripple current, which otherwise could exceed the rating of an external electrolytic input capacitor. the recommended external input capacitance is specifed in the input characteristics section of the electrical specifcations. more detailed information is available in the application note titled emi characteristics on the synqor website. output filtering and external output capacitance: the internal output flter components are shown in figure e below. this flter dramatically reduces output voltage ripple. some minimum external output capacitance is required, as specifed in the output characteristics area of the electrical characteristics section. no damage will occur without this capacitor connected, but peak output voltage ripple will be much higher. thermal considerations: for baseplated and encased versions, the max operating baseplate temperature, t b , is 100oc. refer to the thermal derating curves in the technical figures section to see the available output current at baseplate temperatures below 100oc. a power derating curve can be calculated for any heatsink that is attached to the base-plate of the converter. it is only necessary to determine the thermal resistance, r thba , of the chosen heatsink between the baseplate and the ambient air for a given airfow rate. this information is usually available from the heatsink vendor. the following formula can the be used to determine the maximum power the converter can dissipate for a given thermal condition if its base-plate is to be no higher than 100oc. p max = 100oc - t a diss r thba this value of maximum power dissipation can then be used in conjunction with the data shown in the power dissipation curves in the technical figures section to determine the maximum load current (and power) that the converter can deliver in the given thermal condition. for convenience, thermal derating curves are provided in the technical figures section. v i n external input filter trim v in( + ) i l oa d c l oa d v out(+ ) r trim-up or r trim-down v sense( + ) on/off v in( _ ) v out( _ ) v sense( _ ) electrolytic capacitor figure d: typical application circuit (negative logic unit, permanently enabled). c 2 c 1 l in v in( + ) v in( _ ) v out(+) v out(-) regulation stage current sense isolation stage figure e: internal input and output filter diagram (component values listed in electrical characteristics section).
product # PQ50073HZB60 phone 1-888-567-9596 www.synqor.com doc.# 005-0005484 rev. b 10/25/12 page 12 technical specification PQ50073HZB60 ordering information part numbering system the part numbering system for synqors dc-dc converters follows the format shown in the example below. the first 12 characters comprise the base part number and the last 3 characters indicate available options. the -g suffix indicates 6/6 rohs compliance. application notes a variety of application notes and technical white papers can be downloaded in pdf format from our website. rohs compliance: the eu led rohs (restriction of hazardous substances) directive bans the use of lead, cadmium, hexavalent chromium, mercury, polybrominated biphenyls (pbb), and polybrominated diphenyl ether (pbde) in electrical and electronic equipment. this synqor product is 6/6 rohs compliant. for more information please refer to synqors rohs addendum available at our rohs compliance / lead free initiative web page or e-mail us at rohs@synqor.com . ordering information the tables below show the valid model numbers and ordering options for converters in this product family. when ordering synqor converters, please ensure that you use the complete 15 character part number consisting of the 12 character base part number and the additional characters for options. add -g to the model number for 6/6 rohs compliance. the following options must be included in place of the w x y z spaces in the model numbers listed above. not all combinations make valid part numbers, please contact synqor for availability. see the product summary web page for more options. warranty synqor offers a three (3) year limited warranty. complete warranty information is listed on our website or is available upon request from synqor. information furnished by synqor is believed to be accurate and reliable. however, no responsibility is assumed by synqor 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 synqor. product family package size performance level thermal design output current 6/6 rohs options (see ordering information) input voltage output voltage contact synqor for further information: phone : 978-849-0600 toll free : 888-567-9596 fax : 978-849-0602 e-mail : power @synqor.com web : www.synqor.com address : 155 swanson road boxborough, ma 01719 usa p q 5 0 0 7 3 h z b 6 0 n n s - g ordering information model number input voltage output voltage max output current PQ50073HZB60nns-g 44-52v 7.3v 60a options description: w x y z thermal design enable logic pin style feature set b - threaded baseplated n - negative n - 0.145" s - standard patents synqor holds the following u.s. patents, one or more of which apply to each product listed in this document. additional patent applications may be pending or fled in the future. 5,999,417 6,222,742 6,545,890 6,577,109 6,594,159 6,731,520 6,894,468 6,896,526 6,927,987 7,050,309 7,072,190 7,085,146 7,119,524 7,269,034 7,272,021 7,272,023 7,558,083 7,564,702 7,765,687 7,787,261 8,023,290 8,149,597

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