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| automotive ips high side auips6125r 1 rev 1.3 2016 - 11 - 08 automotive grade low emi current sense high side switch features ? suitable for 12v systems ? over current shutdown ? over temperature shutdown ? current sensing ? repetitive avalanche robustness ? low quiescent current ? reverse battery protection ? esd protection ? optimized turn on/off for emi ? lead - free, halogen - free, rohs compliant applications ? glow plug ? ptc ? seat heater ? relay replacement description the auips6125r is a fully protected four terminal s high side switch . it features current sensing, over - current, over - temperature, and esd protection s . shutdown type of protection provides a good reliability under short circuit condition. the ifb pin provides both an analog feedback during normal operation and a digital flag when the part is in protecti on mode. product summary rds(on) 3.9 m ? typ . current ratio 6 2 00 ishutdown 60 a min. vbr 35v typ. package dpak C 5leads ordering information base part number package type standard pack complete part number form quantity auips6125r d - pak - 5 - leads tape and reel left 3000 AUIPS6125RTRL
auips6125r 2 rev 1.3 2016 - 11 - 08 typical connection o ut auips61 2 5 r in rifb v cc load battery input power ground ifb logic ground current feeback 10k on off auips6125r 3 rev 1.3 2016 - 11 - 08 absolute maximum ratings absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. (tambient=25c unless otherwise specified). symbol parameter min. max. units vcc - vin maximum vcc voltage - 16 6 5 v vcc - v i fb maximum ifb voltage - 0.3 6 5 vcc - vout maximum output voltage - 0.3 29 pd maximum power dissipation rth= 22 c/w tambient=25c ? 150 c ? ? ? thermal characteristics symbol parameter typ. max. units rth1 thermal resistance junction to ambient dpak std footprint 7 0 ? c/w rth2 thermal resistance junction to ambient dpak - 2s2p (1) 22 ? rth3 thermal resistance junction to case dpak 1.2 ? (1) specified according to jedec51 - 2, - 5, - 7 at natural convection on fr4 2s2p board . the product (chip+package) was simulated on a 76.2x114.3x1.5mm board with 2 inner copper layers(2x70mm cu, 2x35mm cu). where applicable a thermal via array under exposed pad contacted the first inner copper layer. recommended operating conditi ons these values are given for a quick design. symbol parameter min. max. units iout continuous output current ? auips6125r 4 rev 1.3 2016 - 11 - 08 static electrical characteristics tj= - 40c..150c, vcc=6..18v (unless otherwise specified) symbol parameter min. typ. max. units test conditions vcc op. operating voltage range 5.8 ? ? ? ? ? ? ? 1 3 iin on input current when device on 1 2.7 6 ma vcc - vin=14v vbr vcc to vout breakdown voltage 3 0.5 35 50 v tj=25c, id= 10 ma 35 39 5 5 tj=150c, id=10ma vih (3) high level input threshold voltage 4.5 5. 4 6.2 id= 20 ma vil (3) low level input threshold voltage 4 5 5.8 rds(on) rev reverse on state resistance tj=25c ? 4 7 m ? ? 0.8 0. 9 v if=10a forward body diode voltage tj=125c ? 0.6 0.8 rin input resistor 115 200 300 ? switching electrical characteristics vcc=14v, resistive load=1 ? , tj=25c symbol parameter min. typ. max. units test conditions tdon turn on delay time 5 40 150 s see fig. 1 t r rise time from 20% to 80% of vcc 5 15 45 tdoff turn off delay time 20 110 200 t f fall time from 80% to 20% of vcc 5 15 45 protection characteristics tj= - 40c..150c, vcc=6..18v (unless otherwise specified) symbol parameter min. typ. max. units test conditions tsd over temperature threshold( 2 ) 150 165 ? psd_ rst time to reset psd ? ? ? ? ? current sensing characteristics tj= - 40c..150c, vcc=6..18 v (unless otherwise specified) symbol parameter min. typ. max. units test conditions ratio i load / ifb current ratio 5000 62 00 7600 iload=60a at vcc=14v / vcc - vifb> 5 v iload=30a at vcc=6v / vcc - vifb>3.5v after 2 ms, see page 7 ratio_cold ratio drift between 25c to - 40c - 3 - 0.8 1 % ratio@ - 40/ratio@25 ratio_hot ratio drift between 25c to 125c - 0.5 2.3 5 ratio@125/ratio@25 i offset load current offset - 0.15 0 0.15 a after 2 ms auips6125r 5 rev 1.3 2016 - 11 - 08 lead assignments functional block diagram all values are typical 1 - in 2 - ifb 3 - vcc 4 - out 5 - out 1 2 4 5 dpak 3 - vcc ifault charge pump driver ifb out vcc 75v 20 0 ? 35 v - + 75 v in set reset latch q 2.7 ma + - v ih reverse battery protection tj > 165c iout > 90 a over power shut down + - vin reset auips6125r 6 rev 1.3 2016 - 11 - 08 truth table op. conditions input output ifb pin voltage normal mode h l 0v normal mode l h i load x rfb / ratio open load h l 0v open load l h ifb leakage x rifb short circuit to gnd h l 0v short circuit to gnd l l i fault x rifb(latched) over temperature h l 0v over temperature l l i fault x rifb (latched) operating voltage maximum vcc voltage : this is the maximum voltage before the breakdown of the ic process. operating voltage : this is the vcc range in which the functionality of the part is guaranteed. the aec - q100 qualification is run at the maximum operating voltage specified in the datasheet. reverse battery during the reverse battery the mosfet is turned on if the input p in is powered with a diode in parallel of the input transistor. power dissipation in the ips : p = rdson rev * i load2 + vcc2 / 20 0ohm ( internal input resistor ). if the power dissipation is too high in rifb, a diode in serial can be added to block the current. repetitive avalanche the auir6125r demagnetizes inductive load energy by clamping the output voltage into the body diode of the power mosfet. the temperature increase during avalanche clamp can be estimated as follows: where: is the thermal impedance at t clamp and can be read from the thermal impedance curves given in the data sheets. : power dissipation during avalanche clamp : average current during a val anche clamp : a valanche clamp duration : demagnetization current figure 9 gives the maximum inductance versus the load current in the worst case: the part switches off after an over temperature detection. if the load inductance exceeds the curve, a freewheeling diode is required. over - current protection the threshold o f the over - current protection is set in order to guarantee that the device is able to turn on a load with an inrush current lower than the minimum of isd. nevertheless for high current and high temperature the device may switch off for a lower current due to the over - temperature protection. thi s behavior is shown in figure 10 . ) ( avalanche t z p th tj ? ? ? ) t ( z avalanche th i vbr p ? ? 2 clamp average _ clamp i i ? dt di i t cl cl ? l vbr v dt di battery ? ? auips6125r 7 rev 1.3 2016 - 11 - 08 current sensing accuracy the current sensing is specified by measuring 3 points : - ifb1 for iout1 - ifb2 for iout2 - ifb leakage for iout=0 the parame ters in the datasheet are computed with the following formula : ratio = ( iout2 C iout1 )/( ifb2 C ifb1) i offset = ifb1 x ratio C iout1 this allows the designer to evaluate the ifb for any iout value using : ifb = ( iout + i offset ) / ratio if i out > i offset for some applications, a calibration is required. in that case, the accuracy of the system will depends on the variation of the i offset and the ratio over the temperature range. the ratio variation is given by ratio_ hot and ratio_cold specified i n page 4. the ioffset variation depends directly on the rdson: i o ffset@ - 40c= i offset@25c / 0.7 3 i o ffset@150c= i offset@25c / 1.6 iout ifb ifb2 ifb1 iout2 iout1 i offset auips6125r 8 rev 1.3 2016 - 11 - 08 over power shut d own protection the auips612 5 r integrates an over - power protection in order to l imit the thermal stress in the m osfet during cer tain conditions like under voltage or high frequency . this protection is activated only when the part turn s on. t he internal capacitor is discharge with a n internal constant (psd_ rst) . case 1: typical in low voltag e condition with a short circuit on the output, the voltage on the vcc pin will oscillate around the under voltage protection and the output current may not reach the 'over - current shut down' threshold . to prevent thermal stress of the device , t he 'over p ower shut down' protection will turn off the part after the time psd_uv ' and the part is latched off. out auips6125r in rifb vcc battery input power ground ifb logic ground current feedback 10k on off l r i out vcc vil psd_uv t isd t psd_uv t vin auips6125r 10 rev 1.3 2016 - 11 - 08 figure 3 C protection timing diagram figure 1 C in rise time & switching definitions figure 2 C avalanche waveforms 0 1 2 3 4 5 6 7 8 -50 0 50 100 150 tj, junction temperature (c) figure 4 C icc off (a) vs tj (c) icc off, supply leakage current (a) tj tsd 165c ids vin i shutdown tshutdown vifb v fault >t reset vout vcc - vin 80% 20% 80% 20% td on tr td off tf vout iout vcc - vin vcc vbr t avalanche auips6125r 11 rev 1.3 2016 - 11 - 08 figure 8 C transient thermal impedance (c/w) vs time (s) zth, transient thermal impedance (c/w) time (s) max. output current (a) figure 7 C max. iout (a) vs inductance (m h) inductance (mh) tj, junction temperature (c) rds(on), drain - to - source on resistance (normalized) figure 6 - normalized rds(on) (%) vs tj (c) 0 1 2 3 4 0 5 10 15 20 25 30 35 figure 5 C icc off(a) vs vcc - v out (v) vcc - v out , supply voltage (v) iccoff, supply current (a) 1 10 100 1.e-03 1.e-02 1.e-01 1.e+00 1.e+01 50% 100% 150% -40 -20 0 20 40 60 80 100 120 140 0.01 0.1 1 10 100 1e - 5 1e - 4 1e - 3 1e - 2 1e - 1 1e+0 1e+1 1e+2 1e+3 auips6125r 12 rev 1.3 2016 - 11 - 08 figure 9 C i in vs vcc - vin vcc - vin , input voltage ( v ) i in , input current ( ma) iout, output current (a) tsd, time to shutdown(s) 0.1 1 10 100 0 10 20 30 40 50 60 70 80 90 '-40c '+25c '+125c -80 -60 -40 -20 0 20 -20 -10 0 10 20 30 40 50 60 70 80 figure 10 C tsd (s) vs i out (a) smd with 6cm2 auips6125r 13 rev 1.3 2016 - 11 - 08 case outline 5 lead C dpak auips6125r 14 rev 1.3 2016 - 11 - 08 tape & reel 5 lead C dpak auips6125r 15 rev 1.3 2016 - 11 - 08 part marking information qualification information qualification level automotive (per aec - q100) comments: this family of ics has passed an automotive qualification. irs industrial and consumer qualification level is granted by extension of the higher automotive level. moisture sensitivity level dpak - 5l msl 3 , 260c (per ipc/jedec j - std - 020 ) esd machine model class m3 (+/ - 300v) (per aec - q100 - 003 ) human body model class 2 (+/ - 35 00v) ( per aec - q100 - 002 ) charged device model class c6 (+/ - 1000v) (per aec - q100 - 011 ) ic latch - up test class ii level a (per aec - q100 - 004) rohs compliant yes auips6125r 16 rev 1.3 2016 - 11 - 08 published by infineon technologies ag 81726 mnchen, germany ? infineon technologies a g 2016 all rights reserved. important notice the information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (beschaffenheitsgarantie). with respect to any examples, hints or any typical values stated herein and/or any information regarding the application of the product , infineon technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non - infringement of intellectual property rights of any third party. in addition , any information given in this document is subject to customer s compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customers products and any use of the product of infineon technologies in customers applications. the data contained in thi s document is exclusively intended for technically trained staff. it is the responsibility of customers technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application. for further information on the product, technology, delivery terms and conditions and prices please contact your nearest infineon technologies o ffice ( www.infineon.c om ). warnings due to technical requirements products may contain dangerous substances. for information on the types in question please contact your nearest infineon technologies o ffice. except as otherwise explicitly approved by infineon technologies in a written document signed by authorized representatives of infineon technologies, infineon technologies products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury. auips6125r 17 rev 1.3 2016 - 11 - 08 revision history revision date notes/changes a april 6 , 2016 initial release rev 1.1 june 8, 2016 add treset min page 4 add ratio vs temp page 4 change psd diagram page 8 add part marking rev 1.2 july 28, 2016 remove tube in ordering information rev 1.3 november 8 , 2016 update page current sensing accuracy : i offset@ - 40c= i offset@25c / 0.7 3 i offset@150c= i offset@25c / 1.6 |
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