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august, 27th 2009 automotive grade AUIPS7141R www.irf.com subject to change w i thout notice 1 current sense high side switch features ? suitable for 24v sy stems ? over current shut dow n over t e mperat ure shut d o ? ? current sensing w n /off fo r emi a m p f o r t r u c k s i s a f u lly prot ect ed f our t e rminal high ? active clamp ? low current ? esd prot ect i on ? op timize d t u rn on applications ? 2 1 w f i l a m e n t l ? solenoid ? 2 4 v l o a d s description t he aui p s 7 1 4 1 r side sw it ch specif ically designed f o r driving lamp. i t f eat ures current sensing, ov er-current , over-t emperat ure, esd prot ect i on and drain t o source act i ve clamp. w hen t he input volt age vcc - vin is higher t han t he specif ied t h reshold, t he out put pow er mosf et is t u rned on. w hen t he vcc - vin is low e r t han t he specif ied vil t h reshold, t he output mosfet is turned off. t he ifb pin is used for current sensing. t he over-current shut dow n is higher t han inrush current of t he lamp. product summary rds(on) 100m ? max . vclamp 65v current shutdown 20a min. packages dpak ty p i c a l c o n n e c t i o n out ips in 2. 5k vcc load ba tte r y i nput po w e r ground ifb logi c ground current f eebac k 10k on off
AUIPS7141R qualification information ? automotive (per aec-q100 ?? ) qualification lev e l comments: this family of ics has passed an automotive qualification. ir?s industrial and consumer qualification le vel is granted by extension of the higher automotive level. moisture sensitiv ity lev e l dpak-5l msl1, 260c (per ipc/jedec j-std-020) machine model class m2 (200 v) (per aec-q100-003) human body model class h1c (1500 v) ( per aec-q100-002 ) esd charged device model class c5 (1000 v) (per aec-q100-011) ic latch-up test class ii, level a (per aec-q100-004) rohs compliant ye s ? qualification standards can be found at international rectifier?s w eb site h t t p : / / www. i r f . c o m / ?? exceptions to aec-q100 requirements are noted in the qualification report. ??? higher msl ratings may be available for the specific package ty pes listed here. please contact y our international rectifier sales representative for further information. www.irf.com 2
AUIPS7141R a b s o l u t e m a x i m u m r a t i n g s absolute maximum ratings indicate sustained limits bey ond w h ich damage to the device may occur. (tambient=25c unless otherw i se specified). m e te r sy m bol pa ra min. ma x . units vout maximum output voltage vcc-60 vcc+0.3 v vcc-vin max. maximum vcc voltage -16 60 v iifb, max. maximum feedback current -50 10 ma vcc sc. maximum vcc voltage w i th short circuit protection see page 7 v ? 5 0 m a x i m u m p o w er dissipation (internally l i m r m a l p r o t e c t i o n ) i t e d b y t h e pd rth=50c/w dpack 6cm2 footprint ? 2.5 w tj max. max. storage & operating junction temperature -40 150 c thermal characteristics b o l p. ma x . units sy m p a ra m e te r ty rth1 thermal resistance junction to a m b i e n t d p a k s t d f o o t p r i 70 ? n t rth2 j u n c t i o n t o a m b i e n t d p a k 6 c m 2 f o o t p 50 ? t h e r m a l r e s i s t a n c e r i n t rth3 thermal resistance junction to case dpak 4 ? c/w r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s these values are giv en for a quick design. sy m i n . ma x . units bol pa ra m e te r m continuous output current, tambient=85c, tj=125c i o u t a rth=50c/w, dpak 6cm2 footprint ? 2.1 r i f b i f b resistor 1.5 ? k ? www.irf.com 3
AUIPS7141R s t a t i c e l e c t r i c a l c h a r a c t e r i s t i c s m e te r min. ty p. ma x . units te s t conditions tj=25c, vcc=28v (unless otherw i se specified) sy m bol pa r a vcc op. o p e r a t i n g v o l t a g e 6 ? 6 0 v o n s t a t e r e s i s t a n c e t j = 2 5 c ? 75 100 r d s ( o n ) 1 5 0 c ( 2 ) ? 135 180 m ? o n s t a t e r e s i s t a n c e t j = i d a s = 2 icc off supply leakage current ? 1 3 iout off output leakage current ? 1 3 a v c c / = v g v v g n i n = v v i f b n d o u t = d i i n o n ma vcc-vin=28v input current w h ile on 0.6 1.6 3 v c l a m p 1 c c t o v o u t c l a m p v o l t a g e 1 id=10ma v 60 64 ? v c l a m p 2 65 72 id=6a see fig. 2 vcc to vout clamp voltage 2 6 0 vih(1) high level input threshold voltage ? 3 4.5 id=10ma vil(1) low l e v e l i n p u t t h r e s h o l d v o l t a g e 1.5 2.3 ? f i o d e v o l o r w ard body d t a g e t j = 2 5 c ? 0.8 0.9 vf f v o r w ard body d i o d e v o l t a g e t j = 1 2 5 c ? 0.65 0.75 if=1a ( t t h r e s h o l d s h i n g e c c = 2 8 v , r e s i s t i v e l o a d = 2 7 , tj=25c i n . ty p. ma x . units te s t conditions 1 ) i n p u s a r e m e a s u r e d d i r e ctly betw een the input pin and the tab. w i t c l e c t r i c a l c h a r a c t e r i s t i c s ? v sy m bol pa ra m e te r m tdon turn on delay t i m e t o 2 0 % 4 10 20 tr rise time from 20% to 80% of vcc 2 5 10 s t d o f f t 80 u r n o f f d e l a y time 20 40 t f f s . a l l t i m e f r o m 8 0 % t o 2 0 % o f v c c 2.5 5 10 s e e f i g 1 protection characteristics sy m bol pa ra m e te r min. ty p. ma x . units te s t conditions tsd over temperature threshold 150(2) 165 ? c see fig. 3 and fig.11 isd over-current shutdow n 20 25 35 a see fig. 3 and page 6 i fault ifb after an over-current or an over- temperature (latched) 2.7 3.3 4 ma see fig. 3 current sensing characteristics sy m bol pa ra m e te r min. ty p. ma x . units te s t conditions ratio i load / ifb current ratio 2000 2400 2800 iload=2a ratio_tc i load / ifb variation over temper ature(2) -5% 0 +5 % tj=-40c to +150c i offset load current offset -0.2 0 0.2 a iout<2a ifb leakage ifb leakage current on in open load 0 8 100 a iout=0a (2) guaranteed by design www.irf.com 4
AUIPS7141R lead assignments 1- nc 2- in 3- vcc 4- ifb t 5 - o u 1 2 4 5 a k c c d p 3- v functional block diagram all values are ty pical d i ag charge pu m p d vcc r i r v e ifb o u t 75v 100 ? t j > 165c iout > 25a 60v 75v - + 75v in se t re se t lat c h q 1.5m a 3v + - www.irf.com 5
AUIPS7141R 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 0v short circuit to gnd h l 0v short circuit to gnd l l v fault (latched) over temperature h l 0v over temperature l l v fault (latched) operating voltage maximum vcc v o ltage : this is the maximum voltage before the breakdow n of the ic process. operating v o ltage : this is the vcc range in w h ich the functionalit y of the p a r t i s g u a r a n t e e d . t h e a e c - q 1 0 0 q u a l i f i c a t i o n is run at the maximum operating v o l t a g e s p e c i f i e d i n t h e d a t a s h e e t . r e v e r s e b a t t e r y during the reverse battery the mosfet is kept off and the load current is flow ing into the body diode of the pow er mosfet. pow e r dissipation in the ips : p = i load * vf if the pow er dissipation is too high in rifb, a diode in serial can be added to block the current. the transistor used to pull-dow n the input should be a bipolar in order to bloc k the reverse current. the 100ohm input resistor can not sustain continuously 16v (see vcc-vi n max. in the absolute maximum ratings section) active clamp the purpose of the active clamp is to limit the voltage ac ross the mosfet to a value below the body diode break dow n voltage to reduce the amount of stress on the device during sw itching. the temperature increase during active clamp can be estimated as follow s : ) t ( z p clamp th cl tj ? = ? where: ) t ( z clamp th is the thermal impedance at t clamp and can be read from the thermal impedance curves given in the data sheets. clavg cl cl i v p ? = : pow e r dissipation during active clamp 65v v cl = : ty pical v clamp value. 2 i i cl clavg = : average current during active clamp dt di i t cl cl = : active clamp duration l v v dt di cl battery ? = : demagnetization current figure 9 gives the maximum inductance vers us the load current in the w o rst case : the part sw itches off after an over temperature detection. if the load inductance exceeds the curve, a free w heeling diode is required. over-current protection the threshold of the over-current protec tion is set in order to guarantee that the device is able to turn on a load w i th an inrush current low e r than the minimum of isd. nevertheles s for high current and high temperature the device may sw itch off for a low e r current due to the over-temperature protection. this behavior is show n in figure 11. www.irf.com 6
AUIPS7141R c u r r e n t s e n s i n g a c c u r a c y ifb i out ifb l eakage ifb2 ifb1 iout2 iout1 i offset ) / ( i f b 2 ? i f b 1 ) i o u t 1 t h e s y stem w ill depends on the variation of the i offset and the ratio over the temperature range. the ratio_tc specified in page 4. on the rdson : s e t @ 2 5 c / 1 . 9 maximum vcc voltage w i th short circuit protection r t c i r c u i t i s t h e m a x i m u m v o ltage for w h ich the part is able to protect itself under test o f s h o r t c i r c u i t s a r e c o n s idered : terminal and load short circuit. l sc r sc t h e c u r r e n t s e n s i n g i s s p e c i f ied by measuring 3 points : - ifb1 for iout1 - ifb2 for iout2 - ifb leakage for iout=0 the parameters in the datasheet are computed w i th the follow i ng formula : r a t i o = ( i o u t 2 ? i o u t 1 i o f f s e t = i f b 1 x r a t i o ? this allow s the designer to evaluate the ifb for any iout value using : ifb = ( iout + i offset ) / ratio if ifb > ifb leakage for some applications, a calibration is required. in that case , the accuracy o f ratio variation is given by the ioffset variation depends directly i offset@-40c= i offset@25c / 0.8 i o f f s e t @ 1 5 0 c = i o f f t h e m a x i m u m v c c v o l t a g e w i t h s h o c o n d i t i o n s r e p r e s e n t a t i v e o f t h e a p p l i c a t i o n . 2 k i n d terminal sc 0.1 h 10 mohm load sc 10 h 100 mohm out ips vcc l sc l s 5 uppl y h r s uppl y 10m ohm r sc www.irf.com 7
AUIPS7141R t j ts d 165c id s vin i shutdow n t s hutdow n vifb v faul t figure 3 ? protection timing diagram itching definitions vd s id s vcc- vi n f i g u r e 1 ? i n r i s e t i m e & s w vc c v d s cl a m p t cl am p s ee a p p l i cat i o n no t es t o eval u a t e p o w er d i ssi p a t i o n figure 2 ? a c tiv e clamp w a v e forms 0 2 4 8 -50 0 50 100 1 5 0 tj, junction temperature (c) figure 4 ? icc off (a ) vs tj (c) v out vcc- vi n 80% 20% 80% 20% t d on tr td o f f tf 10 6 icc off, supply leakage current (a) www.irf.com 8
AUIPS7141R www.irf.com 9 figure 8 ? transient thermal impedance (c/w) vs time (s) ) h , t r a n s i e n t t h e r m a l i m p e d a n c e ( c / w z t ti me (s ) 50% 100% 150% 200% -50 0 50 100 150 rds(on), drain-to-source on resistance (normalized) f i g c ) tj, junction temperature (c) u r e 7 - n o r m a l i z ed rds(on) (% ) v s t j ( 0 -50 - 25 0 2 5 5 0 7 5 100 125 150 1 2 3 4 vih vil tj, junction temperature (c) vih and vil (v) vcc-vout, supply voltage (v) figure 6 ? vih and vil (v) vs tj (c) figure 5 ? icc off (a ) vs vcc-vout (v) icc, supply current (a) 0.0 1 0.1 0 1.0 0 10 . 0 0 10 0. 00 1. e - 05 1. e - 04 1.e- 03 1. e - 02 1. e - 01 1. e + 0 0 1. e + 0 1 1. e + 0 2 20 5 10 15 0 01 0 2 0 3 0 4 0 5 0
AUIPS7141R www.irf.com 10 1 10 100 1. e + 01 1.e + 02 1.e+ 03 1.e + 04 1.e + 05 f i ) i f b , c u r r e e n t ( m a ) g u r e 9 ? m a x . i o u t ( a ) v s i n d u c t a n c e ( h inductance (h) max. output current (a) figure 10 ? ifb (ma ) vs iout (a ) iout, output current (a) n t f e e d b a c k c u r r 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 01 23 25c 150c 4 smd w i th 6cm2 t s d , t i m e t o s h u t d o w n ( s ) 0. 000 1 0. 00 1 0. 0 1 0. 1 1 10 10 0 0 5 10 15 2 0 ' - 40 c '+ 2 5 c ' + 12 5c iout, output current (a) figure 11 ? tsd (s) vs i out (a )
AUIPS7141R www.irf.com 11 c a s e o u t l i n e 5 l e a d ? d p a k
AUIPS7141R tape & reel 5 lead ? dpak www.irf.com 12
AUIPS7141R part marking information ordering information standard pack base part number package ty pe form quantity complete part number tube 75 AUIPS7141R tape and reel 3000 AUIPS7141Rtr tape and reel left 2000 AUIPS7141Rtrl AUIPS7141R d-pak-5-lead tape and reel right 2000 AUIPS7141Rtrr the information provided in this document is believed to be accurate and reliable. how e ver, international rectifier assumes no responsibility for the consequences of the use of this information. international rectifier assumes no responsibility for any infringement of patents or of other rights of third parties w h ich may result from the use of this information. no license is granted by implication or ot herw i se under any patent or patent rights of international rectifier. the specifications ment ioned in this document are subject to change w i thout notice. this document supersedes and replaces all inform ation previously supplied. for technical support, please contact ir?s technical assistance center h t t p : / / www. i r f . c o m / t e c h n i c a l - i n f o / world hea d qua r ters: 233 kansas st., el segundo, california 90245 tel: (310) 252-7105 www.irf.com 13

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