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auir33402 s 1 www.irf.com ? 2014 international rectifier sub mit datasheet feedback august 14 , 2014 automotive grade protected high side switch for automotive dc motor drive features ? up to 20 khz pwm switching capability ? charge pump for dc operation ? active dv/dt control ? load c urrent feedback ? short - circuit protection ? programmable over current shutdown ? over temperature shutdown ? under voltage shutdown ? gnd, in and bootstrap pin loss protection ? e.s.d protection ? low power mode ? leadfree, rohs compliant ? automotive qualified* description the auir 33402 s is a 7 terminals high side switch for variable speed dc motor. it featu res simplify the design of the dc motor drive with a microcontroller. t he mosfet switch es the power load proportionally to the input signal duty cycle at the same frequency and provides a current feedback on the ifb k pin. the over - current shutdown is progr ammable from 10a to 3 3 a. over - current and over - temperature latch off the power switch, providing a digital diagnostic status on the input pin . in sleep mode, the device consumes less tha n 10ua. further int egrated protections such as esd, gnd and cboot dis connect protection guarantee safe operation in harsh conditions of the automotive environment. product summary rds( on) @25c 3.5 m ? max. max current 3 3 a operating voltage 6 C 18v application ? fan engine cooling ? air conditioning blower ? pumps (oil, fuel, water ) ? compressor package d2pak - 7 leads ordering information base part number package type standard pack complete part number form quantity AUIR33402S d2pak - 7 - leads tube 50 AUIR33402S tape and reel lef t 800 AUIR33402Strl
auir 33402 s 2 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade 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 7l - ddpak msl1 , 260c (per ipc/jedec j - std - 020) esd machine model class m3 (per aec - q - 100 - 003 ) human body model class h 2 ( per ae c - q - 100 - 002 ) charge d device model class c5 (per aec - q - 100 - 011 ) rohs compliant yes ? qualification standards can be found at international rectifiers web site http://www.irf.com/
auir 33402 s 3 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade design: basic schematic with micro - processor the b asic circuit is giving all the functionality to drive a motor up to 33 a dc. r ifbk set both the level current shutdown and the current feedback reading scale. the in signal provides to the auir 33402 s the pwm duty cycle. d1 is the free wheeling diode during pwm operation. as the equi valent circuit between vbat and C mot is 2 diode in series (the body diode of the auir 33402 s and d1), the system requires t1, d2, r1 and r2 to sustain the reverse battery. recommended connection with reverse battery protection 1 : this is the recommended schematic with an optional reverse batter y 1 . the recommended load is an inductive load. this part may not be suitable for application conditions other than those specified above. please contact irs automotive technical support for further details on other applications requirement. dc to 20 khz operation the auir 33402 s is able to operate in dc and high speed switching operation. to be able to switch at 2 0 khz , a bootstr ap capacitor is used externally. t he device integrates the power supply of the bootstrap capacitor . in dc operation, when the c apacitor is discharged, the charge pump maintains the device on. 1 the reverse b attery is optional . remove t1, d2, r2 and connect C mot to gnd to remove the features. c1 100nf c2 1nf d1 mbr 3045ct ifbk cboot in vcc gnd +bat auir 33402 s in gnd c3 c4 r2 10k d2 12v - mot gnd + mot vbat cboot 100nf t1 irf140 4 output current shutdown pr ogramming resistor diag ifbk micro - processor i/o i/o a/d gnd r i fbk r in r p i fbk r p diag figure 1 : recommended schematic
auir 33402 s 4 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade active d v /dt control to reduce emi typical connection the auir 33402 s includes a special gate drive, managing the mosfe t dv /dt controlled internally, by managing the g ate voltage dynamicall y. to have the best compromise between the emi levels and power loss, during the turn on and off phase , the dv/dt output is dv/dt is not linear . the output voltage shape is an s shape . sense load current feedback and programmable current shutdown th e ifb k pin allows an analog measurement of the load current and with an external resistor allows to program the over current shutdown level from 10a to 3 3 a. the voltage threshold level of the ifbk pin is internally set to 4v (see the formulas below) . it is also possible to dynamically adjust the current shutdown protection versus time by adding some ex ternal components . this protection is latched. the operating mode is recovered after resetting by the sleep mode . where: imax appli is the maximum application current ishtd max is the maximum output shutdown current internal o ver current shutdown the maximum current shutdown threshol d value is internally fixed to 5 0a typ. this protection is latched. the operating mode is recovered after resetting by the sleep mode . u nder voltage lock - out the auir 33402 s remains operational from uv lo threshold . u nder this continuous voltage, the device will be locked until the voltage recovers the operating range, according to an intern al hysteresis fixed to 0,5v min. the maximum rating voltage is given by the trench vdmos technology where the avalanche voltage is up to 43v typically. sleep mode and reset fault: the sleep mode is enabled if the in pin stay low ( vin < v in power ) more than tslp time . the consumption in sleep mode is icc off . the auir 33402 s wakes up at first rise edge on the in pin (vin > v in power ) . this mode allows resetting all the latched faults. (cf. figure 2 : wake sequence, sleep mode and re set latched fault. ) wake up sequence : the auir 33402 s has a power on reset . after wake up it by the in signal, the devices wait for t pwr _ on_rst before activate the output power mosfet. this time is necessary to charge properly the bootstrap capacitor and to stabilize the internal power supply. (cf. figure 2 : wake sequence, sleep mode and re set latched fault. ) min ratio offset appli imax min gnd vifbk rifbk ? ? ? ? offset max ratio calculated rifbk max gnd vifbk max ishtd ? ? ? ?
auir 33402 s 5 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade in pin and digital diagnostic the in has two functions. in normal working condition, the output follows the in pin di gital level. in latched fault condition (over current and over temperature shutdown), the in pin provides a digital frequency signal feedback to the - processor. vpwm input pin diag 5v t pwron_rst fault t slp reset fault 5v figure 2 : wake sequence, sleep mode and re set latched fault. v diagl v out vcc ? diag f 1 2 1 ?
auir 33402 s 6 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade absolute maximum ratings absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. all voltage parameters are referenced to vcc lead. (tambient=25c unless otherwise specified). symbol parameter min. max. units vout maximum output voltage gnd - 5v vcc+0.3 v vin maxi mum input voltage - 0.3 5.5 v vcc max. maximum vcc voltage ? ? ? ? ? ? ? thermal characteristics symbol parameter typ. max. units rth1 thermal resistance junction to ambient 60 ? c/w rth2 thermal resistance junction to case 0. 65 ? recommended operating conditions these values are given for a quick design. for operation outside these conditions, please consult the applica tion notes. symbol parameter min. max. units vcc max. power supply voltage 6 18 v iout dc output current tj=145 c, tamb=85c, rth=5c/w ? boot bootstrap capacitor 100 220 nf r in recommended resistor in series with in pin 1 10 k ? pdiag recommen ded resistor in series with in pin to read the diagnostic 10 50 k ? ifbk recommended resistor to program over current shutdown 0. 6 5 k ? pifbk recommended resistor in series with r ifbk pin to read the current feedback 10 25 k ? ?
auir 33402 s 7 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade static electrical characteristics tj=25c, vcc=14v (unless otherwise specified) symbol parameter min. typ. max. units test conditions rds(on) on state resistance tj=25c ? ? ? 2 ? ? ? ? ? ? brk breakdown voltage between vcc and vout 39 43 ? in power input threshold voltage to enter in power mode 0.6 0.8 ? il in low threshold voltage 2 2. 5 ? ih i n high threshold voltage ? in hyst input hysteresis 0. 2 5 ? ? ? 5.4 ? di agl low level diagnostic output voltage ? ? ? switching electrical characteristics vcc=14v, inductive load= 1 ? symbol parameter min. typ. max. units conditions td on turn - on delay t ime 0. 5 1.35 1.8 s tr rise time ? ? ? ? 2 guaranteed by design
auir 33402 s 8 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade protection characteristics vcc= 14v, tj=25c (unle ss otherwise specified). symbol parameter min. typ. max. units conditions vifb k - gnd over current threshold voltage 3.8 4 4.15 v isd maximum over current shutdown 40 50 80 a isd 1k current shutdown rifbk = 1k 18 25 33 a tsd over t emperature threshold 155 165 175 c uv ho under voltage turn on ? ? pwr_on_rst power on reset time 7 8 .5 15 s fd ia g diagnostic frequency ? ? current sense characteristics tj=25c (unless otherwise specified), rifb=1k ? symbol parameter min. typ. max. units conditions offset load current diagnostic offset - 3 0.18 3 a ratio ( i load C ? lead s assignment part number auir 33402 s 1 : i fb k 2 : in 3 : gnd 4 : vcc (tab) 5 : c boot 6 : out 7 : out d2pak 7 leads
auir 33402 s 9 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade vboot vpulse vboot 4v 1v dv dt figure 3 : iboot test circuit vin v out 10% tdon 60% 90% tr tdoff t f dt off dt on dv off dv on figure 4 : switching time test circuit AUIR33402S AUIR33402S 14v 15v dt dv cboot iboot ? ?
auir 33402 s 10 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade functional block diagram all values are typical interna l diode schematic all values are typical isd fixed tj > 165c + - 6v gnd in ifbk out level shifter driver & dv/dt control charge pump r s q 75v 43v vcc cboot internal power supply vss on/off boot strap regulator uvlo 6v diagnostic + - vdd + - 4v logic input treset
auir 33402 s 11 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade tj, junction temperature in c normalized rds on in % figure 8 : normalized rdson vs tj temperature in c input voltage in v figure 5 : input parameters vs. tempe rature temperature in c battery voltage in v temperature in c voltage level in v figure 7 : under voltage parameters vs. temperature figure 6 : vifb - gnd vs. temperature 0 1 2 3 4 -50 -25 0 25 50 75 100 125 150 vil vih hihyst vin up 0 1 2 3 4 5 6 -50 -25 0 25 50 75 100 125 150 uv lo uv hi uv hyst 0 1 2 3 4 5 -50 -25 0 25 50 75 100 125 150 vifb-gnd 0% 20% 40% 60% 80% 100% 120% 140% 160% 180% -50 -25 0 25 50 75 100 125 150
auir 33402 s 12 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade temperature in c time in ms figure 10 : tslp vs. temperature temperature in c figure 9 : tpwr_on_rst vs. temperature temperature in c time in s temperature in c time in s figure 12 : rise and fall time vs. temperature figure 11 : current shutdown vs. tempera ture current in a 0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 -50 -25 0 25 50 75 100 125 150 tr tf 0 2 4 6 8 10 12 -50 -25 0 25 50 75 100 125 150 tpwr_on_rst 0 5 10 15 20 25 30 35 40 -50 -25 0 25 50 75 100 125 150 tslp 0 10 20 30 40 50 60 70 -50 -25 0 25 50 75 100 125 150 isd 1k isdf
auir 33402 s 13 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade figure 14 : dv/dt on & off vs. temperature figure 15 : bootstrap voltage vs. temperature figure 13 : tdon & off vs. temperature figure 16 : current bootstrap vs. temperature temperature in c time in s temperature in c dv/dt in v/s temperature in c time in s temperature in c time in s 0 5 10 15 20 25 -50 -25 0 25 50 75 100 125 150 dvdton dvdtoff 0 1 2 3 4 5 6 -50 -25 0 25 50 75 100 125 150 vcboot 0 1 2 3 4 5 6 -50 -25 0 25 50 75 100 125 150 tdon tdoff 0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 -50 -25 0 25 50 75 100 125 150 iboot
auir 33402 s 14 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade figure 17 : transient thermal impedance vs. time
auir 33402 s 15 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade case outline 7l d2pak
auir 33402 s 16 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade important notice unless specifically designated for the automotive market, international rectifier corporation and its subsidiaries (ir) reserve the right to make corrections, modifications, enhancements, improvements, a nd other changes to its products and services at any time and to discontinue any product or services without notice. part numbers designated with the au prefix follow automotive industry and / or customer specific requirements with regards to product dis continuance and process change notification. all products are sold subject to irs terms and conditions of sale supplied at the time of order acknowledgment. ir warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with irs standard warranty. testing and other quality control techniques are used to the extent ir deems necessary to support this warranty. except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. ir assumes no liability for applications assistance or customer product design. customers are responsible for their products and applications using ir components. to minimize the risks with customer products and applications, customers should provide adequate design and operating safeguards. reproduction of ir information in ir data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limit ations, and notices. reproduction of this information with alterations is an unfair and deceptive business practice. ir is not responsible or liable for such altered documentation. information of third parties may be subject to additional restrictions. resale of ir products or serviced with statements different from or beyond the parameters stated by ir for that product or service voids all express and any implied warranties for the associated ir product or service and is an unfair and deceptive busines s practice. ir is not responsible or liable for any such statements. ir products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or in other applications intended to support or susta in life, or in any other application in which the failure of the ir product could create a situation where personal injury or death may occur. should buyer purchase or use ir products for any such unintended or unauthorized application, buyer shall indemn ify and hold international rectifier and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of person al injury or death associated with such unintended or unauthorized use, even if such claim alleges that ir was negligent regarding the design or manufacture of the product. only products certified as military grade by the defense logistics agency (dla) of the us department of defense, are designed and manufactured to meet dla military specifications required by certain military, aerospace or other applications. buyers acknowledge and agree that any use of ir products not certified by dla as military - grade, in applications requiring military grade products, is solely at the buyers own risk and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. ir products are neither designed nor intended for use in automotive applications or environments unless the specific ir products are designated by ir as compliant with iso/ts 16949 requirements and bear a part number including the designation au. buyers acknowledge and agree that, if they use any non - designated products in automotive applications, ir will not be responsible for any failure to meet such requirements. for technical support, please contact irs technical assistance center http://www.i rf.com/technical - info/ world headquarters: 101 n. sepulveda blvd., el segundo, california 90245 tel: (310) 252 - 7105
auir 33402 s 17 www.irf.com ? 2014 international rectifier submit datasheet feedback august 14 , 2014 automotive grade revision history rev. date notes/changes a july 22, 2014 converted directly from auir33401s datasheet rev c_0.doc ; removed note ii in qualification information page ; added ordering information on front page b july 25, 2014 page 15: replaced the case outline drawing with correct version c august 14, 2014 update ordering information

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