absolute maximum ratings features 40ma driver stall timing output current control output clamp overvoltage shutdown package options cs290/291 ignition controller cs290/291 description application diagram 1 gnd mb ac 25/75 v in+ v in ? start v cc d cvs out nc cs bi 14 lead pdip 1 16 lead so wide april, 2001 - rev. 4 1 gnd mb ac 25/75 v in+ v in ? start v cc d cvs out nc cs bi nc nc 1 gnd mb ac 25/75 v in ? start v cc d cvs out test cs bi nc nc nc consult factory for flip chip cs290 cs291 on semiconductor 2000 south county trail, east greenwich, ri 02818 tel: (401)885?600 fax: (401)885?786 n. american technical support: 800-282-9855 web site: www.onsemi.com archive device not recommended for new design the cs290/291 are integrated cir- cuits to be used in the automotive ignition system. the application diagram shown below highlights the cs290. the cs291 is identical with the differential input replaced by a single-ended input. the part is capable of withstanding 90v load dump transients in the circuit shown below. the part is also reverse battery protected. absolute maximum ratings power supply voltage, v bat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? 0.3v to 22v peak transient voltage (load dump 76v @ 14v v bat ) . . . . . . . . . . . . . . . .90v storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? 55? to 165? operating junction temperature, t j . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150? lead temperature soldering wave solder (through hole styles only) . . . . . . .10 sec. max, 260? peak reflow (smd styles only) . . . . . . .60 sec. max above 183?, 230? peak v cc start d in+ in ? 25/75 ac mb gnd bi cs cvs out cs290 v bat 0.1 f 330 27k 1k 55 18v ignition coil 5k 5k v in+ v in ? c run 0.1 f c adaptive 0.1 f 3.2m (optional) 15.3k c stall 0.1 f 200 56 200 4k 16k 0.05 adjust for 6.5a (max) coil current application diagram
input positive threshold 66 %v bat negative threshold v bat =16v 29 %v bat v bat = 6v 29 hysteresis 9%v bat input impedance input = 100 a 70 325 k ? v cc negative edge filter v bat = 16v 18 1100 s v bat = 6v 4 1100 output stage negative edge delay v bat = 6v 1.1 3.1 ms (start mode) positive edge delay v bat = 5v 1.06 1.80 ms (start mode) delay time v bat = 14v 0 16 s (start high to output low) output current v bat = 6v 40 65 ma output soa v bat = 22v 40 65 ma output leakage v bat = 18v 0 100 ua output clamp voltage output = 10ma 13.7 17 v output clamp impedance output = 10ma 10 80 ? (refers to collector sense voltage pin) high frequency on time v bat = 14v 70 80 % general i cc v bat = 6v 1.4 4.6 ma v bat = 16v 5 19 ac gain v bat = 14v 0.8 1.2 v/v adaptive cap gain v cs regulation v bat = 6v 140 210 mv high voltage shutdown 24.3 31 v stall v stall soft shutdown voltage v cs = 6v 0 11 mv soft shutdown frequency v bat = 14v 1.0 2.6 hz soft shutdown time v bat = 6v 13.1 27 ms stall to spark output delay v bat = 14v 4.5 8.9 ms battery interrupt time v bat = 14v 25 750 ms battery interrupt recovery time (200 hz) 0 800 ms dwell dwell @ 10hz v bat = 5v 46 54 % (start mode) start to output disable time v bat = 14v 65 135 ms excess dwell @ 20hz v bat = 14v 14 20.8 % (run mode) parameter test conditions min typ max unit 2 electrical characteristics: 6v < v b < 16v, ? 40? < t a < 125? cs290/291
3 cs290/291 package pin description package pin # pin symbol function 16 lead so wide 14 lead pdip cs290 cs291 1 6 6 gnd signal ground. 2 2 3 mb master bias. sets up operating currents on the ic with exter- nal resistor. 3 3 4 ac adaptive capacitor. follows the 25/75 capacitor. voltage trip points control the output for setting dwell. 4 4 5 25/75 run capacitor. provides 25%/75% charge and discharge current to an external capacitor for setting dwell. 55ncv in+ input pin +. 677v in ? input pin ?. 7 8 8 start input pin to put device in the ?tart mode? 899v cc supply input voltage. 9 10 10 d supply current to output pin. 10 11 11 cvs collector voltage sense. input for flyback detect. 11 12 12 out output. driver for external darlington. 12 1,13,16 1,2,16 nc no connection. 13 14 14 cs current sense. feedback for max coil current. 14 15 15 bi battery int. input for ?tall mode?of operation nc nc 13 test factory test pin. pin should be grounded in customer application. parameter test conditions min typ max unit electrical characteristics: 6v < v b < 16v, ? 40? < t a < 125? dwell: continued excess dwell @ 200hz v bat = 14v 14 20.8 % (run mode) reduced dwell threshold 16.6 21.0 v reduced dwell hysteresis 200 800 mv reduced dwell v bat = 20v 4.0 6.0 % typical performance characteristics 40 30 20 10 0 i coil (ma) time current limit spark plug fires dwell time dwell time normal run mode 17.5% high voltage mode 5.0% start mode 50.0% timing diagram, i coil vs. time
4 package specification package dimensions in mm (inches) d lead count metric english max min max min 14 lead pdip 19.69 18.67 .775 .735 16 lead so wide 10.50 10.10 .413 .398 package thermal data thermal data 14 lead 16 lead pdip so wide r jc typ 48 23 ?/w r ja typ 85 105 ?/w cs290/291 ordering information part number description cs290yn14 14 lead pdip cs291yn14 14 lead pdip cs290ydw16 16 lead so wide cs290ydwr16 16 lead so wide (tape & reel) cs291ydw16 16 lead so wide cs291ydwr16 16 lead so wide (tape & reel) plastic dip (n); 300 mil wide 0.39 (.015) min. 2.54 (.100) bsc 1.77 (.070) 1.14 (.045) d some 8 and 16 lead packages may have 1/2 lead at the end of the package. all specs are the same. .203 (.008) .356 (.014) ref: jedec ms-001 3.68 (.145) 2.92 (.115) 8.26 (.325) 7.62 (.300) 7.11 (.280) 6.10 (.240) .356 (.014) .558 (.022) surface mount wide body (dw); 300 mil wide 1.27 (.050) bsc 7.60 (.299) 7.40 (.291) 10.65 (.419) 10.00 (.394) d 0.32 (.013) 0.23 (.009) 1.27 (.050) 0.40 (.016) ref: jedec ms-013 2.49 (.098) 2.24 (.088) 0.51 (.020) 0.33 (.013) 2.65 (.104) 2.35 (.093) 0.30 (.012) 0.10 (.004) on semiconductor and the on logo are trademarks of semiconductor components industries, llc (scillc). on semiconductor reserves the right to make changes without further notice to any products herein. for additional infor- mation and the latest available information, please contact your local on semiconductor representative. ?semiconductor components industries, llc, 2001
|
