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model : aug 20w series april 05 revision 02 sheet 1 of 15 technical reference note ultra low profile aug 20w series aug 20w ultra low profile dc ? dc module ( pb-free reflow compatible and rohs compliant) the aug 20w series is astec?s new ultra low profile, 48vin, smt isolated single output modules. with the ultra low profile smt design (only 4.8mm height), the module can be flexible mounted on the top side or the bottom side of motherboard. the aug 20w series also comes with enhanced features such as remote on/off (rc), parallel application (po), power good (alm), and the protection of ovp, ocp and uvlo. special features ? ultra low profile ? 4.8mm height ? efficiency ? 88% @ 5v ? -40 c to +75 c ambient operating temperature ( forced air 1.2m/s)) ? open frame smt ? low output ripple and noise ? regulation to zero load ? cispr22, class a for conduct and radiated emi ? parallel application ? ul/ cul 60950 , ce mark ? pb-free reflow compatible and rohs compliant electrical parameters input input range 36 ? 60vdc 60 ? 75vdc (forced air 1.5m/s) efficiency 88% @5vo control enable on: rc pin connected to ?vin or open off: rc pin connected to +vin output line / load regulation +5%, -3% ripple and noise 50mvp-p ovp 120% of vonom (latch-up) ocp 8.2a for 1.5v, 1.8v 7.2a for 2.5v 6.2a for 3.3v 4.2a for 5.0v lvp 95% of vonom (latch-up) isolation 1500vdc (1 minute)
model : aug 20w series april 05 revision 02 sheet 2 of 15 technical reference note ultra low profile aug 20w series aug 20w ultra low profile series this specification covers the requirements model name sis code vout,iout aug08m48 aug08y48 aug07g48 aug06f48 AUG04A48 aug08m48 aug08y48 aug07g48 aug06f48 AUG04A48 1.5v @ 8a 1.8v @ 8a 2.5v @ 7a 3.3v @ 6a 5v @ 4a
model : aug 20w series april 05 revision 02 sheet 3 of 15 technical reference note ultra low profile aug 20w series electrical specifications standard test condition on a single unit, unless otherwise specified. t a : 25 c (ambient air) +vin (p16-17): 36 ? 60vdc 60 ? 75vdc (with derating) -vin (p18-19): return for +vin rc (p13): open + vo (p2-4): connect to load - vo (p5-6): return for + vo po (p14): open alm(p12): open absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. functional operation of the device is not implied at these or in any other conditions in excess of those given in the operational sections of the specs. exposure to absolute maximum ratings for extended periods can adversely affect device reliability . parameter device symbol min typ max unit input voltage continuous v in 36 - 60 vdc continuous (forced air 1.5m/s) v in 60 75 vdc transient (200 m s, 42v/10/ m s rate) v in,trans - - 90 vdc operating temperature (forced air 1.2m/s) -40 75 oc storage temperature all t stg -40 - 90 oc operating humidity all - 10 - 95 % input specifications parameter device symbol min typ max unit operating input voltage v in 36 48 60 vdc input voltage (with derating) v in 60 75 vdc turn-on voltage 32 36 vdc turn-off voltage 30 34 vdc maximum input current 2 (v in = 0 to v in,max ; i o = i o,max ) all i in,max - - 1.0 a note: 1. this power module is not internally fused. the use of an input line fuse (gma-10a bussman fuse or equivalent) is recommended. 2. the value is static only and rated for ul/ cul safety. in-rush current to charge internal capacitors is not specified.
model : aug 20w series april 05 revision 02 sheet 4 of 15 technical reference note ultra low profile aug 20w series output specifications parameter device symbol min typ max unit output voltage setpoint aug08m48 v o,set 1.5 vdc ( v in =v in,min to v in,max at aug08y48 v o,set 1.8 vdc i o =i o,max ) aug07g48 v o,set 2.5 vdc aug06f48 v o,set 3.3 vdc AUG04A48 v o,set 5.0 vdc output regulation: line: v in =v in,min to v in,max all - -3 - +5 % load: i o =i o,min to i o,max all - -3 - +5 % output ripple and noise peak to peak: 5hz to 20mhz all - - - 100 mv pk -pk output current range 1.5v 1.8v 2.5v 3.3v 5.0v i o i o i o i o i o 0 0 0 0 0 - - - - - 8 8 7 6 4 a a a a a output current limit inception 3 1.5v 1.8v 2.5v 3.3v 5.0v i o i o i o i o i o - - - - - 8.2 8.2 7.2 6.2 4.2 - - - - - a a a a a over voltage protection all 120 % vo low voltage protection all 95 % vo efficiency ta = 25 oc. vin =48v, io=iomax 1.5v h 78 83 - % 1.8v h 79 84 - % 2.5v h 81 86 - % 3.3v h 83 88 - % 5.0v h 83 88 - % note: 3. this feature is only for module protection and is not intended for customer application. the value is specified at 25c ambient air temperature.
model : aug 20w series april 05 revision 02 sheet 5 of 15 technical reference note ultra low profile aug 20w series output specifications ( continued ) parameter device symbol min typ max unit switching frequency 1.5v - - 570 - khz 1.8v - - 510 - khz 2.5v - - 510 - khz 3.3v - - 570 - khz 5.0v - - 640 - khz dynamic response: slew rate all d i o / d t - 0.3 x io / 100us - a/ m s load change: 50% - 100% i o ,max all - - - 10 %v o load change: 100% to 50% i o,max all - - - 10 %v o turn-on time (input to output) 5 all - 15 - 250 ms i o = iomax; v in = v in,nom to v o,nom note: 5. input to output turn-on time is defined as the difference between t1 and t2: where t1 is the time when the input voltage reaches the minimum v in (v in = v in ,min ) and t2 is the time when the output voltage reaches it's specified range (v o = v o,set-min ). isolation specification input to output isolation: 1500vdc (1 minute) safety approval the aug (20w) is certified under the following agencies: ul/ cul 60950, and ce mark. the module shall not be considered approved and carry safety agency logos until this has been authorized by safety and qa / qc management.
model : aug 20w series april 05 revision 02 sheet 6 of 15 technical reference note ultra low profile aug 20w series basic operation and features over current limit inception (ocp) the isolated dc-dc converter limits output current when the current is over the maximum output current due to abnormality such as overload or short circuit. when over current condition continues and output voltage decreases to the point of low voltage protection, the dc-dc converter will be in latch up mode. to restore the output, remove the abnormality and re-set the input voltage under 5v for 1 second minimum. over voltage protection (ovp) the isolated dc-dc converter stops the operation when the output voltage is over the specified over voltage protection point, the converter will be in latch up mode after 0.5ms*. to restore the output, re-set the input voltage under 5v for 1 second minimum. notes*: output voltage might exceed the point at which ovp starts to function under the specific condition of transient input voltage or output current change. therefore, ovp is set to wait for the mask time 0.5ms. low voltage protection (lvp) if output voltage is under the specified low voltage protection point, the converter will halt the operation. after typical 500ms mask period, the converter will be in latch up mode. to restore the output, re-set the input voltage under 5v for 1 second minimum. remote on/off control (rc) if rc pin is open or connected to ?vin, the converter is turned on. if rc is connected to +vin, the converter is turned off. alarm output (alm) the alarm output will be down to the ?vin level (open drain output) at the condition of over voltage protection or low voltage protection. the maximum sink current in alm pin is 10ma. when operating in parallel application, all operating units can be simultaneously halt by connecting all the alm pins together, in the condition of over voltage protection or low voltage protection caused by any single converter. maximum number for parallel operation is 10 units synchronous turn on/off connect the po (parallel operation) pins of all operating units together will synchronize the turn on / off time in parallel application. module pin assignment pin # designation p1, 10, 11, 20 nc mechanical supplemental contact pins p2, 3, 4 + vo + output p5, 6 - vo - output p12 alm alarm output p13 rc remote on/off p14 po parallel operation p15 nc - p16, 17 +vin + input p18, 19 -vin - input
model : aug 20w series april 05 revision 02 sheet 7 of 15 technical reference note ultra low profile aug 20w series performance curves efficiency vs. load current curves for 1.5vo efficiency vs. load current curves for 1.8vo efficiency vs. load current curves for 2.5vo efficiency vs. load curren t curves for 3.3vo efficiency vs. load current curves for 5.0vo efficiency at 25c 0 10 20 30 40 50 60 70 80 90 0 2 4 6 8 iout (a) efficiency (%) vin=36v vin=48v vin=60v vin=75v efficiency at 25c 0 10 20 30 40 50 60 70 80 90 100 0 2 4 6 8 iout (a) efficiency (%) vin=36v vin=48v vin=60v vin=75v efficiency at 25c 0 10 20 30 40 50 60 70 80 90 100 0 2 4 6 iout (a) efficiency (%) vin=36v vin=48v vin=60v vin=75v efficiency at 25c 0 20 40 60 80 100 0 2 4 6 iout (a) efficiency (%) vin=36v vin=48v vin=60v vin=75v efficiency at 25c 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 iout (a) efficiency (%) vin=36v vin=48v vin=60v vin=75v
model : aug 20w series april 05 revision 02 sheet 8 of 15 technical reference note ultra low profile aug 20w series derating curve for the aug 20w series aug 20w power derating 0 20 40 60 80 100 -40 -20 0 20 40 60 ambient temp (c) output (%) air v = 0m/s air v=1.2m/s at 60c 65% at 75c
model : aug 20w series april 05 revision 02 sheet 9 of 15 technical reference note ultra low profile aug 20w series typical application circuit a) single operation figure 1 b) parallel operation ( a s ingle power supply connects to multiple dc-dc converters to apply for higher output current more than rated one from a dc-dc converter) figure 2 i) all po pins should be connected together ii) all dc-dc converters with alm pins connected will s top the operation w hen one single converter is halted in mode protected by lvp o r ov p. iii) led is optionally connected to alm pin for the notice of dc-dc converter stoppage. sw open : enable dc-dc converter -48 v + vin - vout -vin - + vout po rc alm f use sw g nd load sw close : halt all dc-dc converter with rc connected together maximum units in parallel: 10pcs loa d sw + vin - vout -vin - + vout po rc alm + vin - vout -vin - + vout po rc alm -48 v g nd f use
model : aug 20w series april 05 revision 02 sheet 10 of 15 technical reference note ultra low profile aug 20w series c) multiple operation: a s ingle power supply connects to multiple dc-dc converters to individually distribute output current to multiple independent loads. figure 3 i) all dc-dc converters with alm pins connected will s top the operation w hen one single converter is halted in mode protected by lvp o r ov p. ii) led is optionally connected to alm pin for the notice of dc-dc converter stoppage. load sw + vin - vout -vin + vout po rc alm + vin - vout -vin + vout po rc alm load sw close : halt all dc-dc converter with rc connected together -48 v g nd f use
model : aug 20w series april 05 revision 02 sheet 11 of 15 technical reference note ultra low profile aug 20w series d) complex parallel and multiple (sequence start-up): two converters supplying the same o utput voltage for a single load and another converter supplying the different output voltage for another load. figure 4 i) po pins of the converters supplying the same output voltage are connect ed to the others and another po pin of the different o utput v oltage converter is not connected. ii) all three dc-dc converters , which are connected to alm pins, s top their operation w hen a single one is halted in mode protected by lvp o r ov p. iii) led is optionally connected to alm pin for the notice of dc-dc converter stoppage. -48 v +vin + vout -vin - vout po rc alm load f use sw 1 g nd sw 2 + vin + vout -vin - vout po rc alm load c onverter no.1 c onverter no.2 sw1 close : halt dc-dc converter no . 1 and 2 sw2 close : halt dc-dc converter no . 3 c onverter no.3 + vin + vout -vin - vout po rc alm
model : aug 20w series april 05 revision 02 sheet 12 of 15 technical reference note ultra low profile aug 20w series mechanical specifications unit weight: 8.9g pin no symbol function pin no symbol function 1,10,11,20 nc mechanical supplemental contact pins 12 alm alarm output 2 + vo ut +output 13 rc remote on/off control 3 + vout +output 14 po parallel operation 4 + vout +output 15 nc - 5 - vout -output 16 +vin +input 6 - vo ut -output 17 +vin +input 18 -vin -input 19 -vin -input notes: a : factory s ymbol f: output current symbol b : the last number of production year g: output voltage symbol example: 2 stands for 200 2 h, j: output voltage c : p roduction month k: output current (1,2,3 ,.. ? , 9,o, n, d) .unit : mm 2 3 4 5 6 p p p p p p p p p 1 a b c d e marking of no.1 pin c us 19 18 17 16 15 14 13 12 (4p) 37.3+/-0.5 10.3+/-0.2 4.17+/-0.5 (4.17) 39.9+/-0.6 4.8max 20 11 10 31.2+/-0.5 p=2.54+/-0.2 tolerance is not accumulated. coplanarity max0.1 input=36-60vdc output= f g aug0 48 h . j v k a 1.95+/-0.2 1.3+/-0.3 0.25+/-0.1 0to10deg 0.55 +0.1 -0.15 enlarged pin shape
model : aug 20w series april 05 revision 02 sheet 13 of 15 technical reference note ultra low profile aug 20w series packing and shipping trays tray dimensions unit : mm general tolerance : +-1.5 a a' b' b b-b' cross section a-a' cross section 10.
model : aug 20w series april 05 revision 02 sheet 14 of 15 technical reference note ultra low profile aug 20w series maximum pieces per a tray : 18pcs/tray package corrugated cardboard box contains trays with products. tray is heaped with alternately opposite direction to prevent products from contacting against the bottoms of trays. : ce mark (310) (210) (68) label corrugated card board box numerals in parentheses are reference only. unit : mm label ;written by : part number, : quantity, : inspection number. bottom sheet of corrugated card board dummy tray trays containing products astec products
model : aug 20w series april 05 revision 02 sheet 15 of 15 technical reference note ultra low profile aug 20w series reflow soldering information soldering i) flux solder the products with rosin flux (0.2wt%. chloride or less). do not use acid or soluble flux, because they may damage metallic parts and glass parts and may cause defective or reduce quality. ii) solder snagcu solder compatible iii ) condition of soldering ? recommended soldering profile (j-std-020c): reflow profile : infrared or air blow preheating : 150 ? 200 deg c for 60 to 150sec peak temperature : 24 0 5 deg c at surface. maximum period above 220 deg.c : 20 ? 60sec ramp rate : lower than 4 deg c / sec times : max 2 times (see below recommendation) . recommendation do not give vibration to products while solder melts under reflow process. please handle to wait for products cooled down enough. please don ? t reflow a motherboard mounted the products on the lower side such as a below figure, because the products surely fall down from the motherboard. if need, we recommend to use supplemental mechanical contact to pins at four corners of a substrate by other adhesive methods , for example, a thermal setting resin rather than soldering. recommend storage condition maximum storage period: 6 months st orage condition: 30 deg c, 60%rh recommend baking the module at 100degc for 24 hours if storage period is longer than 6 months. motherboard isolated dc-dc converter

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