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pka 2000 i ? single, dual and triple output ? 500 v dc isolation voltage ? mtbf >2 million hours @75 c case temperature complete, no extra filters or heatsinks required 25?40 w dc/dc power modules 24 v input series the 25-40 watts pka 2000 series hybrid dc/dc power modules are especially designed for decentralized 24/28 vdc system distributed onboard dc/dc coverters. by using a thickfilm thecknology, which provides a high degree of intergration as well as efficient thermal management, and by utilizing a 300 khz switching frequency, these highly reliable products comply to demanding applications within e.g. cellular radio, medical, industrial and airborne industri. input to output isolation is 500 vdc . mechanical ruggedness C in conformance with iec 68-2 - is close to requirements for discrete components. extreme temperature conditions can be met since the converters can operate with full output power in ambient temperatures ranging from C45 to +85 c or up to +115 c case temperature, making the products ideal also for applications within various non-controlled environments. the pka series is manufactured using highly automated manufacturing lines with a world-class quality commitment and a five-year warranty. ericsson microelectronics ab has been an iso 9001 certified supplier since 1991. for a complete product program please reference the back cover.
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 2 stress in excess of absolute maximum ratings may cause permanent damage. absolute maximumratings, sometimes referred to as no destruction limits, are normally tested with one parameter at a time exceeding the limits of output data or electrical characteristics. if exposed to stress above these limits, function and performance may degrade in an unspecified manner. environmental characteristics characteristics frequency 10?500 hz amplitude 0.75 mm acceleration 10 g number of cycles 10 in each axis vibration (sinusoidal) iec 68-2-6 f c test procedure & conditions peak acceleration 200 g shock duration 3 ms shock (half sinus) iec 68-2-27 e a temperature ?40c to +125c number of cycles 10 temperature change iec 68-2-14 n a damp heat iec 68-2-3 c a temperature 40c duration 56 days bump (half sinus) iec 68-2-29 e b peak acceleration 40 g bump duration 6 ms number of bumps 1000 in 6 directions accelerated damp heat iec 68-2-3 c a with bias temperature 85c humidity 85% rh duration 500 hours safety the pka 2000 i series dc/dc power modules are designed in accordance with en 60 950, safety of information technology equipment including electrical business equipment and certified by semko. the pka power modules are recognized by ul and meet the applicable requirements in ul 1950 safety of information technology equip- ment , the applicable canadian safety require- ments and ul 1012 standard for power sup- plies . the dc/dc power module shall be installed in an end-use equipment and considerations should be given to measuring the case tem- perature to comply with t c max when in operation. they are intended to be supplied by isolated secondary circuitry and shall be installed in compliance with the require- ments of the ultimate application. if con- nected to a 24 v dc power system reinforced insulation must be provided in the power supply that isolates the input from the ac mains. the isolation in the dc/dc power module is an operational insulation in accord- ance with en 60 950. one pole of the input and one pole of the output is to be grounded or both are to be kept floating. the terminal pins are only intended for con- nection to mating connectors of internal wiring inside the end-use equipment. the isolation voltage is a galvanic isolation and is verified in an electric strength test. test voltage (v iso ) between input and output is 500 v dc. the capacitor between input and output has a value of 10 nf and the leakage current is less than 1 a @ 26 v dc. flammability ratings of the terminal support and internal plastic construction details meets ul 94v-0. general 1) corresponding ambient temp. range (t a ) at full output power is ?45 to +85 c. input t c < t c max characteristics conditions min typ max unit t c < t c max 19 32 v v i off turn-off input voltage (see operating information) 13 18 v i o =0,t c = 0...+95c 0.8 w inrush current 2) a i i rush input idling power p ii input transient peak current (transient immunity) p<1 kw, v c < 50 v, t r /t d =10/1000 s 20 a 15 i i 2 t 510 -4 a 2 s i o = i o nom 2) pka 2411 pil = 30 a, 210 -3 a 2 s *) pka 2432 pil = 30 a, 510 -3 a 2 s absolute maximum ratings characteristics min max unit t c case temperature 1) ? 45 +115 c t s storage temperature ? 55 +125 c v i input voltage ? 0.5 36 v dc isolation voltage (input to output test voltage) v dc v iso transient input energy @ t a = +25 c 1.3 ws 500 remote control voltage (pin 9) 0 5 v output adjust voltage (pin 10) 0 v o v v rc v adj 19 35 v t c < + 95 c input voltage range v i
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 3 mechanical data dimensions in mm (in) case blue anodized self-cooled aluminium chassis with snap-on cover and with tin plated brass pins. weight 95 gr (3.35 oz) pka 2432 pil 112 gr (3.95 oz) pin designation function connections 1 rc remote control. to turn-on and turn-off the output. it is also used to adjust the turn-off input voltage threshold. 2 nc not connected. 3 ?in negative input. 4 +in positive input. 5 aux auxiliary. 6 nc not connected in singles. ?out 2 negative output 2 in duals. ?out 3 negative output 3 in triples. 7 nc not connected in singles. +out 2 positive output 2 in duals and triples. 8 ?out 1/rtn negative output 1 in singles and duals. output return in triples. 9 +out 1 positive output 1in all models. 10 v adj output voltage adjust. thermal data thermal resistance case to ambient pi-version r th case-amb. = 5.0 c/w pil-version r th case-amb. = 4.6 c/w for off-card versions (ci) the specification is valid if mounting surface has r th < 7 c/w to ambient. on-card off-card
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 4 fundamental circuit diagrams electrical data single output 9 8 10 5 4 1 3 dual output triple output 6 9 8 5 4 3 7 10 1 9 8 10 5 4 1 3
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 5 pka 2211 pi, ci characteristics conditions output 1 min typ max unit output voltage initial setting and accuracy t c =+25 c, i o =i o max , v i = 26 v v oi output voltage tolerance band v o idling voltage i o = 25 ma line regulation i o =i o max 5.10 5.13 5.17 v 5.40 v t c = 0 ? +95 c, v i = 19...35v unless otherwise specified. long term drift included output i o =0.1 ? 1.0 i o max 72 mv output adjust range 1) 10 % 5.00 5.36 v characteristics conditions unit min typ max efficiency power dissipation p d miscellaneous 78 80 % 6.25 w i o = i o max , v i =26 v i o = i o max , v i =26 v 0 5.0 a load regulation i o =0.1 ? 1.0 i o max , v i = 26 v t tr load transient voltage v tr temperature coefficient 2) t coeff ramp-up time t r start-up time t s 0.1 ? 0.9 v o from v i connection to v o = 0.9 v oi output current i o max output power 3) p o max current limiting threshold i lim t c en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 6 pka 2411 pil characteristics conditions output 1 min typ max unit output voltage initial setting and accuracy t c =+25 c, i o =i o max , v i =26 v v oi output voltage tolerance band v o idling voltage i o = 25 ma line regulation i o =i o max 5.10 5.13 5.17 v 5.40 v t c = 0 ? +95 c, v i = 19 ? 35 v unless otherwise specified. long term drift included output i o =0.1 ? 1.0 i o max 62 mv output adjust range 1) 10 % 5.00 5.36 v characteristics conditions unit min typ max efficiency power dissipation p d miscellaneous 79 81 % 9.4 w i o = i o max , v i = 26 v i o = i o max , v i = 26 v 0 8.0 a load regulation i o =0.1 ? 1.0 i o max , v i = 26 v t tr load transient voltage v tr temperature coefficient 2) t coeff ramp-up time t r start-up time t s 0.1 ? 0.9 v o from v i connection to v o = 0.9 v oi output current i o max output power 3) p o max current limiting threshold i lim t c en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 7 pka 2323 pi, ci characteristics conditions output 1 min unit output voltage initial setting and accuracy t c =+25 c, i o =i o nom , v i =26 v v oi output voltage tolerance band v o idling voltage i o = 25 ma line regulation i o =i o nom 11.74 11.97 12.20 11.77 12.00 12.23 v 12.50 15.90 v mv t c = 0 ? +95 c, v i = 19...35 v unless otherwise specified. i o1 nom = 1.25 a, i o2 nom = 1.25 a. long term drift included output i o1 =0.1 ? 1.0 i o nom i o2 =i o2 nom 168 192 output adjust range 1) % 11.48 12.57 v 1) see operating information. 2) temperature coefficient is neutral at low temperatures. 3) see typical characteristics, power derating. 4) i lim on each output is set by the total load. output 2 typ max min typ max characteristics conditions unit min typ max efficiency power dissipation p d miscellaneous 84 86 % 4.9 w i o = i o nom , v i = 26 v i o = i o nom , v i = 26 v 0 2.0 0 2.0 a load regulation i o1 =0.1 ? 1.0 i o1 nom , i o2 =i o2 nom , v i = 26 v t tr load transient voltage v tr temperature coefficient 2) t coeff ramp-up time t r start-up time t s 0.1 ? 0.9 v o from v i connection to v o = 0.9 v oi output current i o max total output power 3) p o max current limiting threshold i lim t c en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 8 pka 2325 pi, ci characteristics conditions output 1 min unit output voltage initial setting and accuracy t c =+25 c, i o =i o nom , v i = 26 v v oi output voltage tolerance band v o idling voltage i o = 25 ma line regulation i o =i o nom 14.66 14.96 15.26 14.68 14.98 15.28 v 15.50 20.00 v mv t c = 0 ? +95 c, v i = 19 ? 35 v unless otherwise specified. i o1 nom = 1.0 a, i o2 nom = 1.0 a. long term drift included output 210 240 output adjust range 1) % 14.35 15.64 v output 2 typ max min typ max characteristics conditions unit min typ max efficiency power dissipation p d miscellaneous 82 85 % 5.3 w i o = i o nom , v i = 26 v i o = i o nom , v i = 26 v 0 1.6 0 1.6 a load regulation i o1 =0.1 ? 1.0 i o1 nom , i o2 =i o nom , v i = 26 v t tr load transient voltage v tr temperature coefficient 2) t coeff ramp-up time t r start-up time t s 0.1 ? 0.9 v o from v i connection to v o = 0.9 v oi output current i o max total output power 3) p o max current limiting threshold i lim t c en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 9 pka 2231 pi, ci t c = 0 ? +95 c, v i = 19...35 v unless otherwise specified. i o1 nom = 3.8 a, i o2, 3 nom = 0.25 a. characteristics conditions unit min typ max efficiency power dissipation p d miscellaneous 78 82 % 5.5 w i o = i o nom , v i = 26 v i o = i o nom , v i = 26 v 050101a characteristics conditions output 1 min typ max unit output voltage initial setting and accuracy t c =+25 c, i o =i o nom , v i = 26 v v oi output voltage tolerance band v o idling voltage i o = 25 ma load regulation i o1 =0.1 ? 1.0 i o nom , i o2, 3 = i o nom , v i = 26 v t tr load transient voltage v tr temperature coefficient 2) t coeff ramp-up time t r start-up time t s 0.1 ? 0.9 v o from v i connection to v o = 0.9 v oi output current i o max total output power 3) p o max current limiting threshold i lim t c en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 10 pka 2232 pi, ci t c = 0 ? +95 c, v i = 19...35 v unless otherwise specified. i o1 nom = 3.8 a, i o2, 3 nom = 0.2 a. characteristics conditions unit min typ max efficiency power dissipation p d miscellaneous 78 83 % 5.1 w i o = i o nom , v i = 26 v i o = i o nom , v i = 26 v 05.000.800.8a characteristics conditions output 1 min typ max unit output voltage initial setting and accuracy t c =+25 c, i o =i o nom , v i = 26 v v oi output voltage tolerance band v o idling voltage i o = 25 ma load regulation i o1 =0.1 ? 1.0 i o nom , i o2, 3 = i o nom , v i = 26 v t tr load transient voltage v tr temperature coefficient 2) t coeff ramp-up time t r start-up time t s 0.1 ? 0.9 v o from v i connection to v o = 0.9 v oi output current i o max total output power 3) p o max current limiting threshold i lim t c en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 11 pka 2432 pil t c = 0 ? +95 c, v i = 19...35 v unless otherwise specified. i o1 nom = 5.0 a, i o2, 3 nom = 0.45 a. characteristics conditions unit min typ max efficiency power dissipation p d miscellaneous 81 83 % 8.2 w i o = i o nom , v i = 26 v i o = i o nom , v i = 26 v 0 8.0 0 2.0 0 2.0 a characteristics conditions output 1 min typ max unit output voltage initial setting and accuracy t c =+25 c, i o =i o nom , v i = 26 v v oi output voltage tolerance band v o idling voltage i o = 25 ma load regulation i o1 =0.1 ? 1.0 i o nom , i o2, 3 = i o nom , v i = 26 v t tr load transient voltage v tr temperature coefficient 2) t coeff ramp-up time t r start-up time t s 0.1 ? 0.9 v o from v i connection to v o = 0.9 v oi output current i o max total output power 3) p o max current limiting threshold i lim t c en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 12 pka 2323 pi, ci pka 2411 pil pka2211 pi, ci power derating output characteristic (typ) efficiency (typ) efficiency (typ) output characteristic (typ) power derating efficiency (typ) output characteristic (typ) power derating output characteristic (typ) 19 v 35 v load current (a) efficiency (%) 60 70 80 90 5 1 2 3 4 load current (a) efficiency (%) 60 70 80 90 1.6 3.2 4.8 6.4 8.0 19 v 35 v load current output 1(a), i o2 = i o1 efficiency (%) 60 70 80 90 0.25 0.50 0.75 1.0 1.25 19 v 35 v
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 13 pka 2325 pi, ci efficiency (typ) output characteristic (typ) output characteristic (typ) output characteristic (typ) load current output 1(a), i o2 = i o1 efficiency (%) 60 70 80 90 1.0 0.20 0.40 0.60 0.80 19v 35 v power derating efficiency (typ) power derating output characteristic (typ) output characteristic (typ) pka 2231 pi, ci load current output 1(a), i o2 , i o3 = i onom efficiency (%) 60 70 80 90 4.0 0.8 1.6 2.4 3.2 35 v 19 v
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 14 output characteristic (typ) pka 2232 pi, ci efficiency (typ) output characteristic (typ) power derating output characteristic (typ) output characteristic (typ) pka 2432 pil power derating output characteristic (typ) output characteristic (typ) efficiency (typ) load current output 1(a), i o2 , i o3 = i o nom efficiency (%) 60 70 80 90 5 1 2 3 4 19 v 35 v load current output 1(a), i o2 , i o3 = i onom efficiency (%) 60 70 80 90 3.8 0.76 1.52 2.28 3.04 35 v 19 v
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 15 emc specifications the conducted emi measurement was performed using a module placed directly on the test bench. the fundamental switching frequency is 300 khz 15% @ v i = 26v, i o = (0.1...1.0) i o max . output ripple (v o ac) output ripple is measured as the peak to peak voltage of the funda- mental switching frequency. conducted emi input terminal value (typ) over voltage protection (ovp) the remote control can also be utilized for ovp by using the external circuitry in fig. 2. resistor values given are for 5 v output applica- tions, but can easily be adjusted for other output voltages and the desired ovp level. maximum capacitive load the maximum recommended capacitance connected directly to the pka dc/dc power modules output, without resistance or inductance in series, is 100 f/a (output current rating). connect capacitors across the load for maximum effectiveness and maximum stability margins. turn-off input voltage (v ioff ) the input voltage is monitored and the pka dc/dc power module will turn on and turn off at predetermined levels. the levels can be decreased by means of an external resistor connected between pin 1 and pin 4. a 200 k resistor will decrease the shutdown voltage below 18 v. to maintain the nominal output voltage at input voltages below v i min it may be necessary to decrease the load. operating information remote control (rc) turn-on or turn-off can be realized by using the rc-pin. normal operation is achieved if pin 1 is open (nc). if pin 1 is connected to pin 3 the pka dc/dc power module turns off. to ensure safe turn-off the voltage difference between pin 1 and 3 shall be less than 1.8 v. rc is ttl open collector compatible (see fig. 1). pin 1 is an output and no current should be driven into pin 1. use a diode if necessary e.g. totem pole ttl logic. the internal pull-up resistance is 36 k fig. 1 rc (pin 1) ttl pka control logic -v i +v i -in (pin 3) test set-up according to cispr publ. 1a . 5 5 0 fig. 2 6 7 9 8 10 5 4 1 3 parallel operation due to the current limiting protection (hick-up), temperature coeffi- cient and output voltage characteristic for pka paralleling of modules for increased power is not recommended. pka can be paralleled for redundancy. output voltage adjust (v adj ) the output voltage, v o , can be adjusted by using an external resistor. the output voltage adjust function is not accurate and it is recom- mended to use a potentiometer. to decrease the output voltage the resistor should be connected between pin 10 and pin 9 (+ out 1). to increase the output voltage the resistor should be connected between pin 10 and pin 8 (C out 1). current limiting protection the output power is limited at loads above the output current limiting threshold (i lim ), specified as a minimum value. as the pka multiple output models are power limited, current limit- ing threshold for an individual output is set by the loads on the other outputs. the power module can withstand continuous short circuit without destruction. a hick-up mode is used on all models to mini- mize the internal power dissipation. the hick-up time constant is set by the slow start.
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 16 input and output impedance both the source impedance of the power feeding and the load imped- ance will interact with the impedance of the dc/dc power module. it is most important to have the ratio between l and c as low as possible, i.e. a low characteristic impedance, both at the input and output, as the power modules have a low energy storage capability. use an electrolytic capacitor across the input or output if the source or load inductance is larger than 10 h. their equivalent series resist- ance together with the capacitance acts as a lossless damping filter. suitable capacitor values are in the range 10C100 f. mounting information for pkz 0001 the two holes on the ground pin are ovals for positioning of the pin according to the pcb layout. the screws are delivered together with the pin. warranty ericsson microelectronics warrants to the original purchaser or end user that the products conform to this data sheet and are free from material and workmanship defects for a period of five (5) years from the date of manufacture, if the product is used within specified conditions and not opened. in case the product is discontinued, claims will be accepted up to three (3) years from the date of the discontinuation. for additional details on this limited warranty we refer to ericsson microelectronics abs general terms and conditions of sales, or individual contract documents. limitation of liability ericsson microelectronics does not make any other warranties, ex- pressed or implied including any warranty of merchantability or fitness for a particular purpose (including, but not limited to, use in life support applications, where malfunctions of product can cause injury to a persons health or life). reliability meantime between failure (mtbf) is calculated to >2.0 million hours at full output power and a case temperature of +75c (t a =+45c), using the ericsson failure rate data system. the ericsson failure rate data system is based on field failure rates and is continuously updated. the data corresponds to actual failure rates of component used in infor- mation technology and telecom equipment in temperature controlled environments (t a =C5+65c). the data is considered to have a confidence level of 90%. for more information see design note 002. quality statement the products are designed and manufactured in an industrial environ- ment where quality systems and methods like iso 9000, 6s and spc, are intensively in use to boost the continuous improvements strategy. infant mortality or early failures in the products are screened out by a burn-in procedure and an ate-based final test. conservative design rules, design reviews and product qualifications, plus the high competence of an engaged work force, contribute to the high quality of our products. quality mounting surface must be flat within 0.2 mm. all specifications are valid if the mounting surface has r th <7c/w. accessories mounting information for pkz 0004 pkz 0001 pkz 0004 pi version of ground pin for case, in packages of 10 pcs incl. mounting screws. mounting bracket for off-card mounting in packages of 2 pcs. information given in this data sheet is believed to be accurate and reliable. no respon- sibility is assumed for the consequences of its use nor for any infringement 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 ericsson microelectronics. these products are sold only according to ericsson microelectronics ? general conditions of sale, unless otherwise confirmed in writing. specifications subject to change without notice.
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 17 notes:
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 18 notes:
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 19 notes:
en/lzt 146 09 r1a ? ericsson microelectronics ab, june 2000 data sheet v o /i o max output 1 v i ordering no. p o max output 2/3 on-card off-card product program 5 v/5 a 5 v/8 a 12 v/2 a 15 v/1.6 a 0 +5 v/5 a 1 +5 v/5 a +5 v/8 a pka 2211 pi pka 2411 pil pka 2323 pi pka 2325 pi pka 2231 pi pka 2232 pi pka 2432 pil 25 w 40 w 30 w 30 w 25 w 25 w 40 w 12 v/2 a 15 v/1.6 a . 12 v/1 a 15 v/0.8 a 15 v/2 a 24 v pka 2211 ci pka 2323 ci pka 2325 ci pka 2231 ci pka 2232 ci the latest and most complete infor- mation can be found on our website! ericsson microelectronics ab se-164 81 kista, sweden phone: +46 8 757 5000 www.ericsson.com/microelectronics for local sales contacts, please refer to our website or call: int. +46 8 757 4700, fax: +46 8 757 4776

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