View JAW050A6_6942652.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

data sheet april 2008 jaw050a and jaw075a power modules; dc-dc converters: 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w the jaw series power modules use surface-mount technol- ogy and deliver efficient and compact dc-dc conversion. applications n distributed power architectures n establishing 5 v local power bus to feed point-of-load converters in 48 v bus systems options n heat sinks available for extended operation n choice of remote on/off logic configuration n choice of short lead lengths description the jaw050a and jaw075a power modules are dc-dc conver ters that operate over an input voltage range of 36 vdc to 75 vdc and provide a regulated dc output. the outputs are fully isolated from the inputs, allowing versatile polarity configurations and grounding conne ctions. the modules have maximum power ratings from 50 w to 75 w at a typical full-load efficiency of 84%. the sealed modules offer a metal baseplate for improved thermal performance. threaded-through holes are provided to allow easy mounting or addition of a heat sink for high-temperature applications. the standard feature set includes re mote sensing, output trim, an d remote on/off for convenient flexibility in distributed power applications. * iso is a registered trademark of the inte rnational organization for standardization. ? ul is a registered trademark of underwriters laboratories, inc. ? csa is a registered trademark of canadian standards association. vde is a trademark of verband deutscher elektrotechniker e.v. ** iec is a trademark of internatio nal elektrotechni ker commission. ?? this product is intended for integration into end-use equipmen t. all the required procedures for ce marking of end-use equipm ent should be followed. (the ce mark is placed on selected products.) features n small size: 61.0 mm x 57.9 mm x 12.7 mm (2.40 in. x 2.28 in. x 0.50 in.) n high power density n high efficiency: 84% typical n low output noise n constant frequency n industry-standard pinout n metal case n 2:1 input voltage range n overtemperature, overvoltage, and overcurrent protection n remote on/off and remote sense n adjustable output voltage n case ground pin n manufacturing facilities registered against the iso *9000 series standards n ul ? 60950 recognized, csa ? c22.2 no. 60950-00 certified, and vde 0805 ( iec** 60950, 4th edi- tion) licensed n ce mark meets 73/23/eec and 93/68/eec directives ??
2 lineage power data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are abso- lute stress ratings only. functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely af fect device reliability. electrical specifications unless otherwise indicated, specifications apply over all operating in put voltage, resistive load, and temperature conditions. table 1. input specifications fusing considerations caution: this power module is not internally fu sed. an input line fuse must always be used. this encapsulated power module can be used in a wide va riety of applications, ranging from simple stand-alone operation to an integrated pa rt of a sophisticated power ar chitecture. to preserve maxi mum flexibility, internal fus- ing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. the safety agencies require a normal-blow fuse with a maximu m rating of 6 a (see safety considerations section). based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. refer to the fu se manufacturer?s data for further information. parameter symbol min max unit input voltage: continuous transient (100 ms) v i v i, trans ? ? 80 100 vdc v operating case temperature (see thermal considerations section.) t c ?40 100 c storage temperature t stg ?55 125 c i/o isolation voltage ? ? 1500 vdc parameter symbol min typ max unit operating input voltage v i 36 48 75 vdc maximum input current: v i = 0 v to 75 v; i o = i o, max : jaw050a (see figure 1.) jaw075a (see figure 2.) v i = 36 v to 75 v; i o = i o, max : jaw050a jaw075a i i, max i i, max i i, max i i, max ? ? ? ? ? ? ? ? 3.0 3.5 1.7 2.6 a a a a inrush transient i 2 t??1.0a 2 s input reflected-ripple current, peak-to-peak (5 hz to 20 mhz, 12 h source impedance; see figure 11.) i i ?5?map-p input ripple rejection (120 hz) ? ? 60 ? db
lineage power 3 data sheet april 2008 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w jaw050a and jaw075a power m odules; dc-dc converters: electrical specifications (continued) table 2. output specifications * consult your sales representative or the factory. ? these are manufacturing test limits. in some situations, results may differ. table 3. isolation specifications parameter device symbol min typ max unit output voltage set point (v i = 48 v; i o = i o, max ; t c = 25 c) all v o, set 4.92 5.0 5.08 vdc output voltage (over all operating input voltage, resistive load, and temperature conditions until end of life. see figure 13.) all v o 4.85 ? 5.15 vdc output regulation: line (v i = 36 v to 75 v) load (i o = i o, min to i o, max ) temperature (t c = ?40 c to +100 c) all all all ? ? ? ? ? ? 0.01 0.05 15 0.1 0.2 50 %v o %v o mv output ripple and noise voltage (see figure 12.): rms peak-to-peak (5 hz to 20 mhz) all all ? ? ? ? ? ? 40 150 mvrms mvp-p external load capacitance all ? 0 ? * f output current (at i o < i o, min , the modules may exceed output ripple specifications.) jaw050a jaw075a i o i o 0.5 0.5 ? ? 10 15 a a output current- limit inception (v o = 90% of v o, nom ) jaw050a jaw075a i o, cli i o, cli ? ? 12.0 18.0 14 ? 21 ? a a output short-circuit current (v o = 250 mv) all ? ? 170 ? %i o, max efficiency (v i = 48 v; i o = i o, max ; t c = 70 c; see figure 13.) jaw050a jaw075a ? ? 84 84 ? ? % % switching frequency all ? ? 320 ? khz dynamic response ( i o / t = 1 a/10 s, v i = 48 v, t c = 25 c; tested without any load capacitance.): load change from i o = 50% to 75% of i o, max : peak deviation settling time (v o < 10% of peak deviation) load change from i o = 50% to 25% of i o, max : peak deviation settling time (v o < 10% of peak deviation) all all all all ? ? ? ? ? ? ? ? 5 300 5 300 ? ? ? ? %v o, set s %v o, set s parameter min typ max unit isolation capacitance ? 2500 ? pf isolation resistance 10 ? ? m
4 lineage power data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: general specifications feature specifications unless otherwise indicated, specifications apply over all operating in put voltage, resistive load, and temperature conditions. see the feature descriptions section for additional information. * these are manufacturing test limits. in some situations, results may differ. solder, cleaning, and drying considerations post solder cleaning is usually the final circuit-board assembly process prior to the electrical board testing. the result of inadequate circuit- board cleaning and drying can affect both the reliabilit y of a power modu le and the test- ability of the finished circuit-board a ssembly. for guidance on appropriate soldering, cl eaning, and drying proce- dures, refer to the board-mounted power module s: soldering and cleaning application note (ap97-021eps). parameter min typ max unit calculated mtbf (i o = 80% of i o, max ; t c = 40 c) 3,000,000 hours weight ? ? 100 (3.5) g (oz.) parameter symbol min typ max unit remote on/off signal interface (v i = 0 v to 75 v; open collector or equivalent compatible; signal referenced to v i (?) terminal): jawxxxa1 preferred logic: logic low?module on logic high?module off jawxxxa optional logic: logic low?module off logic high?module on logic low: at i on/off = 1.0 ma at v on/off = 0.0 v logic high: at i on/off = 0.0 a leakage current turn-on time (see figure 10.) (i o = 80% of i o, max ; v o within 1% of steady state) v on/off i on/off v on/off i on/off ? 0 ? ? ? ? ? ? ? ? 40 1.2 1.0 15 50 80 v ma v a ms output voltage adjustment: output voltage remote-sense range output voltage set-point adjustment range (trim) ? ? ? 60 ? ? 0.5 110 v %v o, nom output overvoltage protection v o, sd 5.9* ? 7.0* v overtemperature protection t c ?105? c
data sheet april 2008 lineage power 5 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w jaw050a and jaw075a power m odules; dc-dc converters: characteristic curves the following figures provide typical characteristics for the power modules. the figures are identical for both on/off configurations. 8-3327(f) figure 1. typical jaw050a input characteristics at room temperature 8-3328(f) figure 2. typical jaw075a input characteristics at room temperature 8-3329(f) figure 3. typical jaw050a efficiency vs. output current at room temperature 8-3330(f) figure 4. typical jaw075a efficiency vs. output current at room temperature 1.4 1.2 0 input voltage, v i (v) input current, i i (a) 10 20 30 40 50 60 70 75 1.0 0.8 0.6 0.4 0.2 0.0 5 152535455565 1.6 1.8 i o = 10 a i o = 5 a i o = 0.5 a 3.0 2.5 0 input voltage, v i (v) input current, i i (a) 10 20 30 40 50 60 70 75 2.0 1.5 1.0 0.5 0.0 5 152535455565 i o = 15 a i o = 7.5 a i o = 1.5 a 82 81 3 output current, i o (a) efficiency, (%) 579 80 79 78 77 76 75 46810 83 84 74 v i = 75 v v i = 55 v v i = 36 v 83 82 3 output current, i o (a) efficiency, (%) 579 81 80 79 78 77 76 46810 84 85 75 11 12 13 14 15 v i = 75 v v i = 55 v v i = 36 v
6 lineage power data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: characteristic curves (continued) 8-3331(f) note: see figure 12 for test conditions. figure 5. typical jaw075a output ripple voltage at room temperature and 48 vdc input 1-0097 note: tested without any load capacitance. figure 6. typical jaw050a transient response to step increase in load from 50% to 75% of full load at room temperature and 48 vdc input (waveform averaged to eliminate ripple component.) 8-3332(f) note: tested without any load capacitance. figure 7. typical jaw075a transient response to step increase in load from 50% to 75% of full load at room temperature and 48 vdc input (waveform averaged to eliminate ripple component.) 1-0098 note: tested without any load capacitance. figure 8. typical jaw050a transient response to step decrease in load from 50% to 25% of full load at room temperature and 48 vdc input (waveform averaged to eliminate ripple component.) output voltage, v o (v) (50 mv/div) time, t (5 s/div) i o = 1.0 a i o = 7.5 a i o = 15 a time, t (50 s/div) output current, i o (a) (1 a/div) output voltage, v o (v) (200 mv/div) 5 a output voltage, v o (v) (100 mv/div) time, t (200 s/div) output current, i o (a) (1 a/div) 7.5 a time, t (50 s/div) output current, i o (a) (1 a/div) output voltage, v o (v) (200 mv/div) 2.5 a
data sheet april 2008 lineage power 7 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w jaw050a and jaw075a power m odules; dc-dc converters: characteristic curves (continued) 8-3333(f) note: tested without any load capacitance. figure 9. typical jaw075a transient response to step decrease in load from 50% to 25% of full load at room temperature and 48 vdc input (waveform averaged to eliminate ripple component.) 1-0099 note: tested without any load capacitance. figure 10. jaw075a1 typical start-up from remote on/off; i o = i o, max test configurations 8-203(f).l note: measure input reflected-ripple current with a simulated source inductance (l test ) of 12 h. capacitor c s offsets possible bat- tery impedance. measure current as shown above. figure 11. input reflected-ripple test setup 8-513(f).d note: use a 1.0 f ceramic capacitor and a 10 f aluminum or tan- talum capacitor. scope measurement should be made using a bnc socket. position the load between 51 mm and 76 mm (2 in. and 3 in.) from the module. figure 12. peak-to-peak output noise measurement test setup 8-749(f) note: all measurements are taken at the module terminals. when socketing, place kelvin connect ions at module terminals to avoid measurement errors due to socket contact resistance. figure 13. output voltage and efficiency measurement test setup output voltage, v o (v) (100 mv/div) time, t (200 ms/div) output current, i o (a) (1 a/div) 3.7 a time, t (5 ms/div) output voltage, vo (v) (2 v/div) remote on/off, v on/off (v) to oscilloscope current probe battery l test 12 h c s 220 f esr < 0.1 @ 20 c, 100 khz 33 f esr < 0.7 @ 100 khz v i (+) v i (?) 1.0 f resistive scope copper strip 10 f load v o (+) v o (?) v i (+) i i i o supply contact contact and load sense(+) v i (?) v o (+) v o (?) sense(?) resistance distribution losses v o (+) ? v o (?) [] i o v i (+) ? v i (?) [] i i ------------------------------------------------ ?? ?? x100 =%
8 8 lineage power data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: design considerations input source impedance the power module should be connected to a low ac-impedance input source . highly inductive source impedances can affect the stability of the power mod- ule. for the test configuration in figure 11, a 33 f electrolytic capacitor (esr < 0.7 at 100 khz) mounted close to the power module helps ensure sta- bility of the unit. for other highly inductive source impedances, consult the fact ory for further application guidelines. safety considerations for safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., ul 60950, csa c22.2 no. 60950-00, and vde 0805 ( iec 60950, 4th edition). if the input source is non-selv (elv or a hazardous voltage greater than 60 vdc and less than or equal to 75 vdc), for the module's output to be considered meeting the requirements of safety extra-low voltage (selv), all of the following must be true: n the input source is to be provided with reinforced insulation from any other hazardous voltages, includ- ing the ac mains. n one v i pin and one v o pin are to be grounded, or both the input and output pins are to be kept floating. n the input pins of the module are not operator acces- sible. n another selv reliability test is conducted on the whole system, as required by the safety agencies, on the combination of supply source and the subject module to verify that under a single fault, hazardous voltages do not appear at the module's output. note: do not ground either of the input pins of the module without grounding one of the output pins. this may allow a non-selv voltage to appear between the output pins and ground. the power module has extra-low voltage (elv) outputs when all inputs are elv. the input to these units is to be provided with a maxi- mum 6 a normal-blow fuse in the ungrounded lead. feature descriptions overcurrent protection to provide protection in an output overload condition, the unit is equipped with an internal shutdown and auto-restart mechanism. at the instance of current-limit inception, the module enters a hiccup mode of opera- tion whereby it shuts down and automatically attempts to restart. as long as the fault persists, the module remains in this mode. the protection mechanism is such that the unit can continue in this condition until the fault is cleared. remote on/off two remote on/off options are available. positive logic remote on/off turns the module on during a logic-high voltage on the on/off pin, and off during a logic low. negative logic remote on/off turns the module off dur- ing a logic high and on during a logic low. negative logic, device code suffix ?1,? is the factory-preferred configuration. to turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the v i (?) terminal (v on/off ). the switch can be an open collector or equivalent (see figure 14). a logic low is v on/off = 0 v to 1.2 v. the maximum i on/off during a logic low is 1 ma. the switch should maintain a logic-low voltage while sinking 1 ma. during a logic high, the maximum v on/off generated by the power module is 15 v. the maximum allowable leakage current of the switch at v on/off = 15 v is 50 a. if not using the remote on/off feature, do one of the following: n for negative logic, short the on/off pin to v i (?). n for positive logic, leave the on/off pin open.
lineage power 9 data sheet april 2008 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: feature descriptions (continued) remote on/off (continued) 8-720(f).c figure 14. remote on/off implementation remote sense remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections. the voltage between the remote-sense pins and the output terminals must not exceed the out- put voltage sense range given in the feature specifica- tions table, i.e.: [v o (+) ? v o (?)] ? [sense(+) ? sense(?)] 0.5 v the voltage between the v o (+) and v o (?) terminals must not exceed the minimum output overvoltage pro- tection voltage as indicate d in the feature specifica- tions table. this limit includ es any increase in voltage due to remote-sense compensation and output voltage set-point adjustment (trim). see figure 15. if not using the remote-sense feature to regulate the output at the point of load, then connect sense(+) to v o (+) and sense(?) to v o (?) at the module. although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. the maximum increase is the larger of either the remote sense or the trim. consult the factory if you need to increase the outp ut voltage more than the above limitation. the amount of power delivered by the module is defined as the voltage at t he output terminals multiplied by the output current. when using remote-sense and trim, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power. 8-651(f).m figure 15. effective circuit configuration for single-module remote-sense operation output voltage set-point adjustment (trim) output voltage trim allows the user to increase or decrease the output voltage set point of a module. this is accomplished by connecting an external resistor between the trim pin and either the sense(+) or sense(?) pins. the trim resistor should be positioned close to the module. if not using the trim feature, leave the trim pin open. with an external resistor between the trim and sense(?) pins (r adj-down ), the output voltage set point (v o, adj ) decreases (see figure 16). the following equa- tion determines the required external-resistor value to obtain a percentage output voltage change of %. with an external resistor connected between the trim and sense(+) pins (r adj-up ), the output voltage set point (v o, adj ) increases (see figure 17). the following equation determines the required exter- nal-resistor value to obtain a percentage output voltage change of %. the voltage between the v o (+) and v o (?) terminals must not exceed the minimum output overvoltage pro- tection voltage as indicated in the feature specifica- tions table. this limit includes any increase in voltage due to remote-sense compensation and output voltage set-point adjustment (trim). see figure 15. sense(+) v o (+) sense(?) v o (?) v i (?) + ? i on/off on/off v i (+) load v on/off sense(+) sense(?) v i (+) v i (?) i o load contact and supply i i contact v o (+) v o (?) distribution losses resistance r adj-down 1000 % ------------ -11 ? ?? ?? k = r adj-up v o nom , () 1 % 100 --------- - + () 1.225 ? 1.225 % ------------------------------------------------------------------------ 1000 11 ? ?? ?? ?? ?? k =
10 10 lineage power data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: feature descriptions (continued) output voltage set-point adjustment (trim) (continued) although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. the maximum increase is the larger of either the remote sense or the trim. consult the factory if you need to increase the output voltage more than the above limitation. the amount of power delivered by the module is defined as the voltage at t he output terminals multiplied by the output current. when using remote-sense and trim, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. care should be taken to ensure that th e maximum output power of the module remains at or below the maximum rated power. 8-748(f).b figure 16. circuit configuration to decrease output voltage 8-715(f).b figure 17. circuit configuration to increase output voltage output overvoltage protection to provide protection in an output overvoltage condi- tion, the unit is equipped with circuitry that monitors the voltage on the output terminals. if the voltage on the output terminals exceed the overvoltage protection threshold, the module enters a hiccup mode of opera- tion whereby it shuts down and automatically attempts to restart. as long as the fault persists, the module remains in this mode. the protection mechanism is such that the unit can continue in this condition until the fault is cleared. overtemperature protection these modules feature an overtemperature protection circuit to safeguard against thermal damage. the cir- cuit shuts down when the maximum case temperature is exceeded. the module will automatically restart when the case temperature cools sufficiently. thermal considerations introduction the power modules operate in a variety of thermal environments; however, suff icient cooling should be provided to help ensure reliable operation of the unit. heat-dissipating components inside the unit are ther- mally coupled to the case. heat is removed by conduc- tion, convection, and radi ation to the surrounding environment. proper cooling can be verified by mea- suring the case temperature. peak temperature (t c ) occurs at the position indicated in figure 18. 8-716(f).h note: top view, pin locations are for reference only. measurements are shown in millimeters and (inches). figure 18. case temperature measurement location v i (+) v i (?) on/off case v o (+) v o (?) sense(+) trim sense(?) r adj-down r load v i (+) v i (?) on/off case v o (+) v o (?) sense(+) trim sense(?) r adj-up r load measure case on/off case + sen trim ? sen 29.0 (1.14) 30.5 temperature here v o (+) v o (?) v i (+) v i (?) (1.20)
lineage power 11 data sheet april 2008 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: thermal considerations (continued) introduction (continued) the temperature at this location should not exceed 100 c. the output power of the module should not exceed the rated power for the module as listed in the ordering information table. although the maximum case temperature of the power modules is 100 c, you can lim it this temperature to a lower value for extrem ely high reliability. heat transfer without heat sinks increasing airflow over the module enhances the heat transfer via convection. figures 21 and 22 show the maximum power that can be dissipated by the module without exceeding the maximum case temperature ver- sus local ambient temperature (t a ) for natural convec- tion through 4 m/s (800 ft./mi n.). note that the thermal performance is orientation dependent. longitudinal ori- entation occurs when the long direction of the module is parallel to the airflow, wh ereas transverse orientation occurs when the short direction of the module is paral- lel to the airflow. note that the natural convection condition was mea- sured at 0.05 m/s to 0.1 m/s (10 ft./min. to 20 ft./min.); however, systems in whic h these power modules may be used typically generate natural convection airflow rates of 0.3 m/s (60 ft./min.) due to other heat-dissipat- ing components in the system. the use of figure 22 is shown in the following example. example what is the minimum airflow necessary for a jaw075a operating at v i = 55 v, an output current of 15 a, trans- verse orientation, and a maximum ambient tempera- ture of 55 c? solution given: v i = 55 v i o = 15 a t a = 55 c determine p d (use figure 20.): p d = 14 w determine airflow (v) (use figure 22.): v = 2.3 m/s (460 ft./min.) 8-3336(f) figure 19. jaw050a power dissipation vs. output current at 25 c 8-3337(f) figure 20. jaw075a power dissipation vs. output current at 25 c 0 output current, i o (a) power dissipation, p d (w) 246810 12 11 10 9 8 7 13579 5 4 3 6 v i = 75 v v i = 55 v v i = 36 v output current, i o (a) power dissipation, p d (w) 246810 12 11 10 9 8 7 13579 5 4 6 13 14 15 16 11 12 13 14 15 v i = 75 v v i = 55 v v i = 36 v
12 12 lineage power data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: thermal considerations (continued) heat transfer without heat sinks (continued) 8-2465(f) figure 21. forced convection power derating with no heat sink; longitudinal orientation 8-2466(f) figure 22. forced convection power derating with no heat sink; transverse orientation heat transfer with heat sinks the power modules have through-threaded, m3 x 0.5 mounting holes, which enable heat sinks or cold plates to attach to the module. the mounting torque must not exceed 0.56 n-m (5 in.-lb.). thermal derating with heat sinks is expressed by using the overall thermal resistance of the module. total module thermal resistance ( ca) is defined as the max- imum case temperature rise ( t c, max ) divided by the module power dissipation (p d ): the location to measure case temperature (t c ) is shown in figure 18. case-to-ambient thermal resis- tance vs. airflow for various heat sink configurations and heights is shown in figures 23 and 24. these curves were obtained by experimental testing of heat sinks, which are offered in the product catalog. 8-2164(f).a figure 23. case-to-ambient thermal resistance curves; longitudinal orientation 8-2165(f).a figure 24. case-to-ambient thermal resistance curves; transverse orientation 20 18 14 12 10 8 6 4 0 0 10 405060708090100 power dissipation, p d ( w) local ambient temperature, t a ( c) 16 20 2 30 0.1 m/s (20 ft./min.) 1.0 m/s (200 ft./min.) 2.0 m/s (400 ft./min.) 4.0 m/s (800 ft./min.) 3.0 m/s (600 ft./min.) 20 18 14 12 10 8 6 4 0 0 10 405060708090100 power dissipation, p d ( w) local ambient temperature, t a ( c) 16 20 2 30 0.1 m/s (20 ft.min.) 1.0 m/s (200 ft./min.) 2.0 m/s (400 ft./min.) 4.0 m/s (800 ft./min.) 3.0 m/s (600 ft./min.) ca t cmax , p d -------------------- - t c t a ? () p d ------------------------ == 9 8 6 5 4 3 2 1 0 0 1.0 2.0 3.0 case-to-ambient thermal air velocity, m/s (ft./min.) (200) (400) (600) resistance, ca ( c/w) 7 1.5 2.5 (300) (500) 0.5 (100) 1 1/2 in. heat sink 1 in. heat sink 1/2 in. heat sink 1/4 in. heat sink no heat sink 8 6 5 4 3 2 1 0 01.02.03.0 case-to-ambient thermal air velocity, m/s (ft./min.) (200) (400) (600) resistance, ca ( c/w) 7 1.5 2.5 (300) (500) 0.5 (100) 1 1/2 in. heat sink 1 in. heat sink 1/2 in. heat sink 1/4 in. heat sink no heat sink
lineage power 13 data sheet april 2008 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: thermal considerations (continued) heat transfer with heat sinks (continued) these measured resistances are from heat transfer from the sides and bottom of the module as well as the top side with the attached heat sink; therefore, the case-to-ambient thermal resistances shown are gener- ally lower than the resistance of the heat sink by itself. the module used to collect the data in figures 23 and 24 had a thermal-conductive dry pad between the case and the heat sink to minimize contact resistance. the use of figure 23 is shown in the following example. example if an 82 c case temperature is desired, what is the minimum airflow necessary? assume the jaw075a module is operating at v i = 55 v, an output current of 15 a, longitudinal orientation, maximum ambient air temperature of 40 c, and the heat sink is 1/4 inch. solution given: v i = 55 v i o = 15 a t a = 40 c t c = 82 c heat sink = 1/4 inch. determine p d by using figure 20: p d = 14 w then solve the following equation: use figure 23 to determine ai r velocity for the 1/4 inch heat sink. the minimum airflow necessa ry for this module is 1.1 m/s (220 ft./min.). custom heat sinks a more detailed model can be used to determine the required thermal resistance of a heat sink to provide necessary cooling. the total module resistance can be separated into a resistanc e from case-to-sink ( cs) and sink-to-ambient ( sa) as shown in figure 25. 8-1304(f).e figure 25. resistance from case-to-sink and sink-to-ambient for a managed interface using thermal grease or foils, a value of cs = 0.1 c/w to 0.3 c/w is typical. the solution for heat sink resistance is: this equation assumes that all dissipated power must be shed by the heat sink. depending on the user- defined application environment, a more accurate model, including heat transfer from the sides and bot- tom of the module, can be used. this equation pro- vides a conservative esti mate for such instances. emc considerations for assistance with designing for emc compliance, refer to the fltr100v10 filter module data sheet (ds99-294eps). layout considerations copper paths must not be routed beneath the power module standoffs. for additional layout guidelines, refer to the fltr100v10 filter module data sheet (ds99-294eps). ca t c t a ? () p d ------------------------ = ca 82 40 ? () 14 ----------------------- - = ca 3.0 c/w = p d t c t s t a cs sa sa t c t a ? () p d ------------------------ - cs ? =
14 lineage power data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: outline diagram dimensions are in millim eters and (inches). tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) x.xx mm 0.25 mm (x.xxx in. 0.010 in.) top view side view bottom view 8-716(f).j * side label in cludes lineage name, product des ignation, safety agency markings, input/output voltage and current ratings, and bar code. ? the case pin length is 5.3 (0.21), i.e., 1.2 (0.05) longer than the other pins. 57.9 (2.28) 61.0 (2.40) 0.51 (0.020) 12.7 (0.50) 2.06 (0.081) dia solder- plated brass, 2 places (v o ( ) and v o ) 1.02 (0.040) dia solder-plated brass, 7 places 4.1 (0.16) side label* min ? 48.3 (1.90) 10.16 (0.400) 10.16 (0.400) 5.1 (0.20) 12.7 (0.50) 4.8 (0.19) 48.26 (1.900) standoff, 4 places 7.1 (0.28) 7.1 (0.28) trim 17.78 (0.700) 50.8 (2.00) 35.56 (1.400) 25.40 (1.000) 35.56 (1.400) 25.40 (1.000) v i ( ) on/off case v i ( )v o ( ) sen sen v o ( ) mounting inserts m3 x 0.5 through, 4 places
lineage power 15 data sheet april 2008 36 vdc to 75 vdc input, 5 vdc output; 50 w to 75 w jaw050a and jaw075a power m odules; dc-dc converters: recommended hole pattern component-side footprint. dimensions are in millimeters and (inches). 8-716(f).j ordering information please contact your lineage power account manager or fiel d application engineer for pricing and availability. table 4. device codes optional features can be ordered usin g the suffixes shown in table 5. to order more than one option, list the device codes suffixes in numerically descending order. for example, the device code for a jaw075a module with the following option is shown below: table 5. device options input voltage output voltage output power output current remote on/off logic device code comcode 48 vdc 5.0 vdc 50 w 10 a negative jaw050a1 108209974 48 vdc 5.0 vdc 75 w 15 a negative jaw075a1 108064353 48 vdc 5.0 vdc 50 w 10 a positive jaw050a 108449323 48 vdc 5.0 vdc 75 w 15 a positive jaw075a 108449422 short pins: 3.68 mm 0.25 mm (0.145 in. 0.010 in.) jaw075a6 option device code suffix short pins: 2.79 mm 0.25 mm (0.110 in. +0.020 in./?0.010 in.) 8 short pins: 3.68 mm 0.25 mm (0.145 in. 0.010 in.) 6 10.16 (0.400) 10.16 (0.400) 12.7 (0.50) 4.8 (0.19) module outline 5.1 (0.20) 48.26 (1.900) terminals 48.3 (1.90) 57.9 (2.28) 50.8 (2.00) 25.40 (1.000) 35.56 (1.400) 61.0 (2.40) 35.56 (1.400) 25.40 (1.000) 17.78 (0.700) trim v i ( ) on/off case sen sen v o ( ) v i ( ) v o ( )
data sheet april 2008 36 vdc to 75 vdc input, 5 vd c output; 50 w to 75 w jaw050a and jaw075a power modules; dc-dc converters: april 2008 ds00-3 26 eps (replaces ds00-325eps) world w ide headquarters lin eag e po wer co rp or atio n 30 00 skyline drive, mesquite, tx 75149, usa +1-800-526-7819 (outsid e u.s.a .: +1- 97 2-2 84 -2626 ) www.line agepower.com e-m ail: techsupport1@lineagepower.com asia-pacific headquarters tel: +65 6 41 6 4283 eu ro pe, m id dle-east an d afric a he ad qu arter s tel: +49 8 9 6089 286 india headquarters tel: +91 8 0 28411633 lineage power reserves the right to make changes to the product(s) or information contained herein without notice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. ? 2008 lineage power corporation, (mesquite, texas) all international rights reserved. ordering information (continued) table 6. device accessories dimensions are in millim eters and (inches). accessory comcode 1/4 in. transverse kit (heat sink, thermal pad, and screws) 407243989 1/4 in. longitudinal kit (heat sink , thermal pad, and screws) 407243997 1/2 in. transverse kit (heat sink, thermal pad, and screws) 407244706 1/2 in. longitudinal kit (heat sink , thermal pad, and screws) 407244714 1 in. transverse kit (heat sink, thermal pad, and screws) 407244722 1 in. longitudinal kit (heat sink, thermal pad, and screws) 407244730 1 1/2 in. transverse kit (heat sink , thermal pad, and screws) 407244748 1 1/2 in. longitudinal kit (heat sink, thermal pad, and screws) 407244755 8-2832(f).a figure 26. longitudinal heat sink 1/4 in. 1/2 in. 1 in. 1 1/2 in. 61 57.9 (2.4) (2.28) 8-2833(f) figure 27. transverse heat sink 1/4 in. 1/2 in. 1 in. 1 1/2 in. 57.9 (2.28) 61 (2.4)

▲Up To Search▲

Price & Availability of JAW050A6

	To Download JAW050A6 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .