technical data 1 janua ry 20 1 1 , ver.0 1 5v/400ma l ow d rop v ol t age ile4275 is integrated circuits of voltage regulator 5v/400 ma with low - drop voltage. the ic of voltage regulator 5v/400 ma are purposed to supply dc voltage 5v with 2% accuracy at a range of input voltages from 5,6 to 4 0 v , with drop voltage 0,5v at load current 300 ma. the ic is used in power supply units of electronic devices, including automotive electronics. maximum input voltage is 45 v. the ic is tolerant to over voltage of both polarities (positive & negative), pr o- vide internal current limitation and output voltage thermal shutdown. reset function is avai l able. the ic realized in 5 - pin plastic packages to - 263 - 5 and to - 2 5 2 - 5 ile42 7 5 d2 to - 263 - 5 ile42 7 5 d0 to - 2 52 - 5 f eatures ? high accuracy o f the output voltage 5 v ? 2%; ? l ow - drop voltage ; ? bui l t - in overheating protection ; ? reverse polarity proof ; ? low consumption current; ? input voltage up to 45 v; ? suitable for use in automotive electronics ; ? wide junction temperature range - 40 +150 ? c ; ? reset function. i le4275 ordering information devic e operating temperature range package shipping ile42 7 5 d2 t j = - 40 ? to 150 ? c to - 263 - 5 t ube ile4275 d2 t to - 263 - 5 tape & reel ile4275 dot to - 2 52 - 5 tape & reel
ile 427 5 january 20 1 1 , ver.01 table 1 . pin s d escription chip pad number package pin number symbol function 01 01 i input 02 02 ro reset output 03 03 gnd common pin (ground) 04 04 d reset delay pin 05, 06 05 q output 07 - 1 0 - - not bonded (not used) block diagr am a1 C control amplifier ; a2 C buffer ; r1 C r4 C resistors ; vt1 - transistor fig ure 1. vt1 - + a1 01 03 02 05 i q gnd ro temperature sensor saturation control & protection circuit reference vol t age source reset generator adjus t- ment 0 4 d a2 r1 r2 r3 r4
ile 427 5 january 20 1 1 , ver.01 table 2 . absolute maximum ratings symbol parameter min. max. unit j junction te m perature - 40* 150 o c stg storage temper a ture - 50 150 o c v i input voltage - 4 2 45 v v d reset delay pin voltage - 0.3 ** 7** v i d reset delay pin current - 2 2 ma v r reset pin voltage - 0 , 3 ** 25 ** v i ro reset pin current - 5 5 ma v q output voltage - 1,0** 16** v _________ * ambient temperature is indicated. ** voltage is not applied to input i * stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those i n- dicated under recommended operating conditions is not implied. exposure to absolute - maximum - rated conditions for extended periods may affect device reliability. table 3 . recommended o peration rate symbol parameter min. max. unit j junction temperature - 40* 150 o c v i input voltage 5,6 40 v v q output voltage 4, 9 5, 1 v note: maximum power p tot ,w, dissipated by ic at ambient temperature t a , is calculated by for mula: p tot = (150 - t a ) / r th j - a , (1) 150 C maximum permissible operating junction temperature, o c. r th j - a - thermal resistance junction ambient (for ic without heat sink) , o c /w, for il e4275 without heat sink r th ja is equal 80 o c /w for ile4275 without heat sink r th ja is equal 65 o c /w for ic with heat sink r th ja is calculated by formula r th j - a = r th j - c + r th c - a , ( 2 ) r th j - c - thermal resistance junction case, o c /w. r th jc = 4 o c/w. thermal resistance case - ambient r th c - a is determined by heat sink design and is s e- lected by ic customer. application circuit and heat sink and ambient temperature have to provide junction temper a- ture not more t j ? 150 o c. _________ * ambient temperature is indicated .
ile 427 5 january 20 1 1 , ver.01 table 4 . electric p arameters ( v i = 13 . 5 v, v adj > 2 . 0 v, - 40 c < t j < 150 c unless otherwise specified ) symbol parameter test condition min. max. unit i q consumption cu r rent i q = i i - i q i q = - 1 ma, t j = 25 o c - 0 . 2 ma i q = - 1 ma, t j < 85 o c - 0 . 22 i q = - 250 ma - 10 i q = - 400 ma - 22 i qmax maximum output current - 450 - ma v dr drop voltage i q = - 30 0 ma note 2 - 0.5 v v q ou t put voltage 6 v ? i ? ? q ? ? i ? ? q ? ? q( v ) supply (input) voltage reg u- lation of output vol t age 8 v ? i ? q = - 5 ma - 15 15 mv ? q(i) load current regulation of output voltage - 5 ma ? q ? rt reset generator switching threshold voltage - 4.5 4.8 v i roh reset output leakage current v roh = 5 v - 10 ? rol reset output low level vo l t- age r ext ? ? q ? dl ro ou t put switching to low threshold voltage - 0,2 0 . 7 v v d v ro ou t put switching to high threshold voltage - 1,5 2 . 2 v i d charge current v d = 1 v 3,0 9 . 0 ? d reset delay time c d = 47 nf 10 22 ms t rr reset reaction time c d = 47 nf - 2 ? i1 = 100 ? i2 = 100 nf and output capacity c q = 22 ? dr = v i - v q is measured, when the output voltage v q has dropped 100mv from the nominal value obtained at v i = 13.5 v. __________ * ambient tempe rature is indicated.
ile 427 5 january 20 1 1 , ver.01 table 5 . typical e lectric p arameters ( v i = 13 . 5 v, - 40 c < t j < 150 c unless otherwise specified ) symbol parameter test condition typical v alue unit psrr ripple rejection ratio f r = 100 hz q = - 100 ma v r = 0,5** v (p - p) 60 db d v q /dt temperature factor of output voltage - 0,5 mv / o c _______ * ambient temperature is indicated. ** it is permitted to measure at v r( - p) = 3 v, but for that psrr norm to be revised typical a pplicati on d iagram fig ure 2 . r 1 5 k ? ile4275 + + gnd 01 04 05 02 03 i d q ro c1 1000 ? f c 2 100 nf c 3 22 ? f input output
ile 427 5 january 20 1 1 , ver.01 operation t iming d iagram fig ure 3. dv id = dt c d power - on - reset thermal shutdown voltage dip at input undervoltage at input overload at output td t rr ? t rr v i , v ( pin 01) v q , v ( pin 05 ) u rt , v d , v ( pin 04 ) v du , v v dl , v v r , v ( pin 02 ) t, ? s u roh , v u rol , v
ile 427 5 january 20 1 1 , ver.01 package dimension to - 263 - 5 2050 ?? 06
ile 427 5 january 20 1 1 , ver.01 to - 2 5 2 - 5
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