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??? ?? ???????china.maximintegrated. com/max 15091.related MAX15091/MAX15091a?ic???? ??????? ?????18m ( ?)mosfet?? ???? (170 a/a)?2.7v18v? ???? di/dt?mosfet??(soa) ????variablespeed/bilevel tm ???????? ??? ? ? 10%??? ??MAX15091 MAX15091a? ????inout? mosfet?gate???? ??/????/??? ???inout??? ???? MAX15091/MAX15091a 28 ?5mm?x?5mm tqfn? - 40 c+85 c??? 2.7v18v? 18m ?mosfet 9a?(?)? ? 10%? soa??? ??/ ??? ??? ? ? ???? ?? ??? inout ? ?? i/o raid?? ? ?? variablespeed/bilevelmaxim ? integrated ? products, ? inc. ? ?? ??????????????? ?????maxim?10800 ? 852 ? 1249 ? ()10800 ? 152 ? 1249 ? () maxim?china.maximintegrated.com 19-6625; rev 1; 9/13 MAX15091/MAX15091a 2.7v18v9a?
v cc to gnd .......................................................... -0.3v to +20v in to gnd .............................................................. -0.3v to +20v out to gnd ............................................... -0.3v to (v in + 0.3v) gate to out .......................................................... -0.3v to +6v cdly, isense to gnd .......................... -0.3v to (v reg + 0.3v) en , cb, uv, ov to gnd ......................................... -0.3v to +6v reg to gnd ............................ -0.3v to min (+6v, (v cc + 0.3v)) pg, fault to gnd ............................................... -0.3v to +20v continuous power dissipation (t a = +70 nc) tqfn (derate 34.5mw/ n c above +70 nc)............... 2758.6mw operating temperature range ........................... -40n c to +85 nc junction temperature ...................................................... +150nc storage temperature range ............................ -60n c to +150 nc lead temperature (soldering, 10s) ................................. +300nc soldering temperature (reflow) ....................................... +260nc junction-to-ambient thermal resistance ( q ja ) .............. 29c/w junction-to-case thermal resistance ( q jc ) ..................... 2c/w (v in = v cc = 2.7v to 18v, t a = t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t a = +25c.) (note 2) parameter symbol conditions min typ max units power supplies v cc operating range v cc 2.7 18 v in operating range v in 2.7 18 v v cc supply current i cc v in = 3v 0.4 0.65 ma in supply current i in r cb = 25k, no load 3.3 3.6 ma r cb = 10k, no load 1.75 2 v cc default undervoltage lockout v uvlo v cc rising 2.35 2.5 2.65 v v cc default undervoltage- lockout hysteresis v uvlo_hys 0.1 v reg regulator voltage v reg no load, v cc > 4v 3 3.3 3.5 v uv turn-on threshold v uv_th v uv rising 1.18 1.2 1.22 v uv turn-on threshold hysteresis v uv_hys v uv falling 0.1 v ov turn-on threshold v ov_th v ov rising 1.18 1.2 1.22 v ov turn-on threshold hysteresis v ov_hys v ov falling 0.1 v en threshold v en_th v en rising 0.95 1 1.05 v en threshold hysteresis v en_hys v en falling 0.1 v absolute maximum ratings package thermal characteristics (note 1) electrical characteristics note 1: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four-layer board. for detailed information on package thermal considerations, refer to china.maximintegrated.com/thermal-tutorial . thermal resistance can be lowered with improved board design. stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
(v in = v cc = 2.7v to 18v, t a = t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t a = +25c.) (note 2) parameter symbol conditions min typ max units ov, uv, en input leakage current i leak v ov = v uv = v en = 0 to 5v -1 +1 a cb source current i thcb_norm power-on mode 12 a current limit circuit-breaker accuracy (note 3) i cb,th v in = 12v r cb = 25k 8 9 10 a r cb = 8.33k 2.7 3 3.3 circuit-breaker accuracy deviation r cb = 8.33k to 25k, compared to nominal current-limit value -10 +10 % slow-comparator response time (note 4) t scd 0.6% overcurrent 2.7 ms 30% overcurrent 200 s maximum current limit during startup i lim (see figure 2) i cb,th a fast-comparator threshold i fc_th 1.5 x i cb,th a fast-comparator response time t fcd 200 ns minimum cb voltage reference during foldback (note 5) v thcb_min v in - v out > 10v, r cb = 25k 35 mv maximum cb voltage reference during foldback (note 5) v thcb_max v in - v out < 2v, r cb = 25k 150 mv timing startup maximum time duration t su 43 48 53 ms autorestart delay time t restart 3.2 s time delay comparator high threshold v dly_th 1.85 2 2.15 v time delay pullup current i dly 1.6 1.9 2.2 a output short detection at startup t short 10.8 12 13.2 ms mosfet total on-resistance r on t a = +25c 18 23 m? t a = -40c to +85c 27 gate charge current i gate 4.56 5.7 6.84 a electrical characteristics (continued) 3 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
(v in = v cc = 2.7v to 18v, t a = t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t a = +25c.) (note 2) note 2: all devices are 100% production tested at t a = +25c. limits over temperature are guaranteed by design. note 3: 25k is the maximum allowed external resistance value to be connected at cb pin to gnd for safe operation. all devices are tested with 8.33k, the parameter specified at r cb = 25k is guaranteed by bench characterization and correlation, with respect to the tested parameter at r cb = 8.33k. the formula that describes the relationship between r cb and the circuit-breaker current threshold is: i cb = r cb /2777.8. note 4: the current-limit slow-comparator response time is weighed against the amount of overcurrent so the higher the overcurrent condition, the faster the response time. note 5: foldback is active during the startup phase so the internal power mosfet operates within soa. parameter symbol conditions min typ max units outputs fault , pg output low voltage v ol low-impedance state, i fault = +5ma, i pg = +5ma 0.4 v fault , pg output high leakage current i oh high-impedance state, v fault = 16v, v pg = 16v 1 a current report isense full-scale current i isense 1.53 ma isense gain ratio isense/i out 170 a/a isense voltage range v isense v in = 12v 0 2.5 v isense offset error i isense_off t a = +25c -32 +32 a t a = -40c to +85c -45 +45 isense gain error i isense_error t a = +25c -3 +3 % t a = -40c to +85c -5.5 +5.5 pg threshold pg threshold v pg measured at v out , v in = 12v 0.9 x v in v pg assertion delay t pg from v out > v pg and (v gate - v in ) > 3v 12 16 20 ms out to in short-circuit detection threshold v iosht measured at v out , v in = 12v 0.9 x v in v out precharge threshold v pc measured at v out , v in = 12v 0.5 x v in v thermal shutdown thermal shutdown t sd t j rising +150 c thermal-shutdown hysteresis t j falling 20 c electrical characteristics (continued) 4 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
(v in = v cc = 2.7v to 18v, t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t j = +25c.) (note 3) in supply current vs. temperature MAX15091 toc01 temperature (c) i in supply current (ma) 60 35 10 -15 3.15 3.20 3.25 3.30 3.10 -40 85 v in = 12v circuit-breaker threshold vs. temperature MAX15091 toc03 temperature (c) circuit-breaker threshold (a) 60 35 10 -15 2 4 8 6 10 12 14 0 -40 85 v in = 12v r cb = 25k r cb = 20k r cb = 15k r cb = 8.2k turn-on waveform MAX15091 toc05 10ms /div v uv 2v/div v out 10v/div v pg 10v/div i load 5a/div 0v 0v 0v 0a i load = 3.5a normal turn-off waveform MAX15091 toc06 10ms /div v uv 2v/div v out 10v/div v pg 10v/div i load 5a/div 0v 0v 0v 0a i load = 3.5a circuit-breaker threshold vs. circuit-breaker resistance MAX15091 toc02 r cb () circuit-breaker threshold (a) 20 15 10 2 4 6 8 10 12 0 5 25 v in = 12v on-resistance vs. temperature MAX15091 toc04 temperature (c) on-resistance (m) 603510-15 15 20 25 10 -40 85 v in = 12v i load = 1a ? 2sa
5 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
(v in = v cc = 2.7v to 18v, t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t j = +25c.) (note 3) ?() fault-shutdown waveform overload (slow trip) MAX15091 toc07 1ms /div v out 10v/div v pg 10v/div i load 10a/div v fault 10v/div 0v 0a 0v 0v circuit-breaker threshold vs. temperature MAX15091 toc09 temperature (c) circuit-breaker threshold (a) 60 35 10 -15 1.1 1.2 1.3 1.4 1.0 -40 85 v in = 12v v uv rising v uv falling autoretry functionality MAX15091 toc11 1s /div v out 10v/div i load 10a/div v pg 10v/div v fault 10v/div 0v 0a 0v 0v circuit-breaker threshold time vs. overcurrent MAX15091 toc12 overcurrent (%) circuit-breaker threshod time (ms) 25 20 15 10 5 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 0 0.2 0 30 v in = 12v fault-shutdown waveform overload (short circuit) MAX15091 toc08 1ms /div v out 10v/div v pg 10v/div i load 5a/div v fault 10v/div 0v 0a 0v 0v pg assertion delay MAX15091 toc10 10ms /div v uv 1v/div v out 5v/div v pg 5v/div 0v 0v 0v 6 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
MAX15091 MAX15091a tqfn top view 26 27 25 24 10 9 11 in in in in in 12 in out out out out out out 1 2 gnd 4 5 6 7 2021 19 17 16 15 gnd cb fault en cdly gate in out 3 18 28 8 isense v cc + reg 23 13 pg uv 22 14 gnd ov *connect exposed paddle to gnd. *ep ? 1C7 in ???in?18m ? mosfet???????ingnd ?gnd???^ 8 v cc ??v cc 2.7v18v??inv cc ???(10?)1f gnd??outgnd??v in ?? 9 gate ?mosfetgate???5.7a10v/ms??mosfetgategnd? ????? ? 7 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
?? ????/? MAX15091/MAX15091a?ic 1 ??v cc ?v uvlo ?v cc ? > ? v uvlo v uv ???(v uv ?>?1.2v)v ov ???(v ov ?< ? 1.2v)?v uv ?(1.2v?-?v uv_hys ) v ov 1.2v???in uvov??????/? ?v uvlo 18v?? ?1? ?? ? ? ? 10 cdly ????cdlygnd?????1s/ fen??? ?????mosfet??? 11 en ????reg????en???????? ?(1ms)?????mosfet?????cdly gnd?????? engnd??? 12 fault ??fault ????????fault ??? ??fault 13 pg ?pg?????mosfet???pg????? 14, 25, 26 gnd ? 15C21 out ?mosfet? 22 ov ???ov???mosfetov????? ? ? ? 23 uv ??????uv???mosfet?uv???? ?? ? 24 reg ???1f???reg??(regen?? 50k ?) 27 cb cbgnd??k????????25k ? cbgnd??0a 28 isense isense???isensegnd??k? ? ep ???epgndep?gnd??ep???gnd? ? gnd???????????????ep?? ?() 8 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
??????out ????10v/ms???? ?? gate????? ????rcb???? ???mosfetsoa?( ?2) ???48ms?? out????(0.9?x?v in )(v gate ?- ? v out )?>?3v???? 16ms??(pg)? ??????? ?mosfet variablespeed/bilevel? variablespeed/bilevel????? ??????( ?3 )?( ?)??mosfet? ????MAX15091a?? ?MAX15091( ???? ) ?(en) ????? en ??t dly ???(1ms) en ??t dly ?????mosfet ???????cdlygnd? ?????1s/ f??? engnd ? 1. ? ?? x ? = ? ?? v uv_th v ov_th ? = ? 1.2v ? (?) ?1. ? ??/? power supply precision analog inputs out v cc uv ov v cc > v uvlo v uv > v uv_th v ov < v ov_th on v cc < v uvlo x x off x v uv < (v uv_th - v uv_hys ) x off x x v ov > v ov_th off MAX15091 MAX15091a in uv ov gnd 1.2v r1 r2 r3 control logic 9 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
?2. ? ??? ?3. ? variablespeed/bilevel? i inrush 2v 10v 4.5a 1.5a 1a 0.25a v in - v out r cb = 25k ? r cb = 8.33k ? 2.7ms 200ns turn-off time out current slow comparator fast comparator 0.6% overcurrent 30% overcurrent 50% overcurrent 200s 10 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
? ????mosfet??? ???v in ??? ???mosfet?r on ??????5.7 amosfet gate10v/ms(?)??mosfet gategnd??(c gate )? ????c gate c gate = ( i gate x ?t)/?v gate ?i gate ?5.7 a?(?) ?t ????? ? ?v gate ??mosfet???? ??out???i gate / c gate ?????? ?? (?v out /?t) = i lim /c load ??? ?mosfet????cb gnd????? i cb = r cb /2777.8 ?i cb ???r cb ?(cbgnd??)? ??? ???????? ????????? ????????? ????? ??25k ?9a?cbcb ?9a????? ?????? out??gnd???mosfet ????? ???? ????mosfet? ?MAX15091a???? t restart MAX15091?? ??t restart ?????? ?????????? ? ??(fault) fault ??????? ?? fault ?????? ?fault ??5ma ?(pg)? ????t pg ? ?out????(0.9 ? x ? v in )(v gate ? - ? v out ) ? > ? 3v ??(reg) ??reg?3.3vreg ?????(reg en ??>?50k ?)reg?1 f ???? (isense) isense???? ??????? 170 a/a?isense???k? ??????adc???? ?? 11 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
? ???????? ????3t j ?=?+150 c?(?)?? ??mosfet?20 c?( ?)????? inout ??(uvovv uvlo ) inout?v out v in 90%?mosfet?? fault ? MAX15091a3.2s ? MAX15091 v out v in 90%v in 50%?mosfet ???v out v in 50%? mosfet?? ?? ?? ??mosfet??/?(uv) 2.7v18v??????2.5v?( ?) v cc ? < ? 2.5vv uv ? < ? v uv_th ??mosfet??? ????inuvovgnd??? (?1 )v cc 2.7vv uv 1.2v?(?)? ?mosfet?????1? ???? ( ) - in uv _th v r1 1 r2 r3 v ?? ?? = + ?? ?? ?v in ???v uv_th ?1.2vr1 (r2?+?r3)inuv??? vuv??1.2v?(?)?v uv ? 100mv?(v uv_hys )??mosfet ? ? ??mosfet?????(ov) v ov 1.2v?(?)??mosfet?? ???inuvovgnd??? (?1 )?1??? ?? ( ) - in ov _th v r1 r2 1 r3 v ?? ?? += ?? ?? ?v in ?????v ov_th ?1.2vr1 (r2?+?r3)inov??? v ov ??1.2v?(?)?v ov v ov_th ???mosfet? ? 12 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
?? 13 MAX15091 MAX15091a uv ov cdly 1.2v 2v 1.9a temp sense startup control and foldback control logic 2 x i slew i pd i gate i ref m s1 v cc gate in out isense fault pg 12a cb gate_ok reference generator reg en ldo regulator dly ctrl i load /5882 cb_slow_comp fast_comp m pow charge pump 0.9 x v in v cc 1.2v gate i load gnd MAX15091/MAX15091a 2.7v18v9a? maxim integrated
+ ??(pb)/rohs??? ? t ? = ? ? ?? -? ? MAX15091 eti+ -40nc +85nc 28 tqfn- ep* latched off MAX15091a eti+** -40nc +85nc 28 tqfn- ep* autoretry ? ? ?? 28 tqfn t2855+8 21-0140 90-0028 MAX15091 MAX15091a r in r cb r pg c in tvs in v cc uv 12v ov en gnd cb reg r fault r1 r2 r3 c reg gate out pg fault isense dc-dc regulator 3.3v output a/d converter c gate cdly c cdly r isense ? ?? process: bicmos ?? ?? ? ?????(?)? china. maximintegrated.com/packages ???? + ? # - ?rohs???????? ? ?????rohs???? 14 MAX15091/MAX15091a 2.7v18v9a? maxim integrated
? ? ? ?? 0 3/13 1 9/13 ?? maximmaxim????????maxim??????????? ???(??)?????? maxim integrated 160 rio robles, san jose, ca 95134 usa 1-408-601-10 00 15 ? 2013 maxim integrated maxim?maxim ? integratedm axim ? integrated ? products, ? inc. ? maxim 8328 ? 100083 ?800 ? 810 ? 0310 010-6211 ? 5199 010-6211 ? 5299 ?? MAX15091/MAX15091a 2.7v18v9a?

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