 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ?d n b y 9 7 5 75 r i ?1r?1 *?? 1 / 7 w ? 1 / : y w j o "m - 7 b| ?? h ?+?1? 3 / 4 6 w? 4 / 7 w ;?8 ] ?? [ ???1b?s ?r??1 [t$ ? *? hr?1 ??? 2 & n b y 9 7 5 7g ?? h q x n ?+ y+ ? h -0 - j]? ??u 6 1 1 l i {? 3 n i { *? ?+? h?? ]?#??? 4 ??gc?aj]? h ?t0? | o n p t?z? w? ? i h @'? ?"c$? j a? h 1? ? h|z <]{? <]|? 5z [[ m|??z h?d ? ||(0 - h n b y 9 7 5 7] ? ? qr ) ? 2 5 n i { *?1? 9m? 1 y+ <? ? [? 9m??'ow? 1? ' 5"mr qiu ? h| 3 1 & w q| 5r q ??z p~?0b- ?c??|r???? ?]?#??? n b y 9 7 5 7 ?? y ? ] r??? :?y4|r ?1zk??|r?1? 1 ? 2 &|r?1 t??'? #| 1 / 2 & ?? j -20 - {? ( c| y j]? | ] 1 / 7 w|] ?e? 1 tw? s f g j or? |j] ?e?1 sr?1 ??u? \ ??|k? n b y 9 7 5 70 -j]?? ?? .2 ?r? ?{? n b y 9 7 5 7g 3 5 [ m 5 n n y 5 n no r g o? v? ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` b q p m b t j d 0 d q v 0 e t q y??2 j 0 p?? e e s?? ?6?? ?g? e?? s b j e <??? ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` v ? ? 3 4 n s e t ) p o * | n p t g f u ? 7 b ?? r ? ?s ?r??1 [t *? 2 &|r t ? 3 / 4 6 w? 4 / 7 w ?+?1 ? r?1? 1 / 7 w? ) 1 / : ! y ! w j o *? . - ? ??4?r? ?{? ? 6 1 1 l i {? 3 n i { - ? h ? ?'?# ]?2 ? ?r?? ? -? | w j er?1? 1 / 7 w 1 / 8 w 1 / 9 w 2 / 1 w 2 / 3 w 2 / 6 w 2 / 9 w 3 / 1 w [ 3 / 6 w ? rs| - [ -z? ? ? ?]? ?????r ? -ac 0?? 8? e e sb ? 3 5[ m 5 n n ! y ! 5 n no r g o? v? n b y 9 7 5 7 7 b 3 n i { ]1o ? ? ________________________________________________________________ maxim integrated products 1 19-3971; rev 2; 10/07 [ m|??k ?t ?|" ? ta5 n b y j nu+^at ?|ia n b y j ny !i|@?|?j t?%? |g ? ??@ia| -@?a ? t !ig??i?? \$?|eiv?l n b y j n |^at ? ?s ? e- ["d|k ?t ?? 7 n b y j n|? x x x / n b y j n . j d / d p n / d o output 1.8v, 6a input 2.4v, 3.6v bst lx out in en v dd ctl1 ctl2 pgnd fb v dd comp pwrgd freq refin ss gnd prebias max8646 ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ?o ?+? 5 ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ? g? part temp range pin-package pkg code max8646etg+ -40c to +85c 24 thin qfn-ep* 4mm x 4mm t2444-4 , -,? v? * f q ! > ! a fd - ? e? n b y 9 7 5 7 7 b 3 n i { ]1o ? ? 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics (v in = v dd = 3.3v, v fb = 0.5v, t a = -40c to +85c, typical values are at t a = +25c, circuit of figure 1, unless otherwise noted.) (note 2) 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 specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. in, v dd , pwrgd to gnd ......................................-0.3v to +4.5v comp, fb, refin, out, ctl_, en, ss, freq to gnd...................-0.3v to (v dd + 0.3v) lx current (note 1) .....................................................-8a to +8a bst to lx..................................................................-0.3v to +4v pgnd to gnd .......................................................-0.3v to +0.3v continuous power dissipation (t a = +70c) (derate 27.8mw/ c above +70c) ..........................2222.2mw operating temperature range ...........................-40c to +85c junction temperature ......................................................+150c storage temperature range .............................-65c to +150c lead temperature (soldering, 10s) .................................+300c note 1: lx has internal clamp diodes to gnd and in. applications that forward bias these diodes should take care not to exceed the ic?s package power dissipation limits. parameter conditions min typ max units in/v dd in and v dd voltage range 2.35 3.60 v v in = 2.5v 4 4.6 in supply current f s = 1mhz, no load, (includes gate-drive current) v in = 3.3v 5.5 ma v in = 2.5v 1.4 2.3 v dd supply current f s = 1mhz v in = 3.3v 2 ma total shutdown current from in and v dd v in = v dd = v bst - v lx = 3.6v, v en = 0v 13 a v dd rising 2 2.1 v dd falling 1.8 1.9 v v dd undervoltage lockout threshold lx starts/stops switching deglitching 2 s bst t a = +25c 5 bst supply current v bst = v dd = v in = 3.6v, v lx = 3.6v or 0v, v en = 0v t a = +85c 10 a pwm comparator pwm comparator propagation delay 10mv overdrive 20 ns comp comp clamp voltage, high v in = 2.35v to 3.6v 2 v comp slew rate 1.4 v/s pwm ramp amplitude 1v comp shutdown resistance from comp to gnd, v en = v ss = 0v 8 error amplifier preset output-voltage accuracy refin = ss -1 select from table 1 +1 % fb regulation accuracy using external resistors ctl1 = ctl2 = gnd 0.594 0.600 0.606 v fb to out resistor all vid settings except ctl1 = ctl2 = gnd 5 8 11 k open-loop voltage gain 1k from comp to gnd 115 db n b y 9 7 5 7 7 b 3 n i { ]1o ? ? _______________________________________________________________________________________ 3 electrical characteristics (continued) (v in = v dd = 3.3v, v fb = 0.5v, t a = -40c to +85c, typical values are at t a = +25c, circuit of figure 1, unless otherwise noted.) (note 2) parameter conditions min typ max units error-amplifier unity-gain bandwidth parallel 10k n b y 9 7 5 7 7 b 3 n i { ]1o ? ? 4 _______________________________________________________________________________________ parameter conditions min typ max units frequency range 500 2000 khz lx minimum off-time v in = 2.5v to 3.3v 40 75 ns lx maximum duty cycle r freq = 50k , v in = 2.5v to 3.3v 93 96 % lx minimum on-time r freq = 50k , v in = 2.5v to 3.3v 80 ns rms lx output current 6a enable en input logic low, falling 1.2 0.7 v en input logic high, rising 1.7 1.4 v en hysteresis 200 mv t a = +25c 1 en, input current v en = 0v or 3.6v, v dd = 3.6v t a = +85c 0.01 a ss ss charging current v ss = 0.45v 7 8 9 a ss discharge resistance 500 thermal shutdown thermal-shutdown threshold +165 c thermal-shutdown hysteresis 20 c power-good (pwrgd) power-good threshold voltage v fb falling, 3mv hysteresis 87 90 93 % power-good falling edge deglitch 48 clock cycles pwrgd output voltage low i pwrgd = 4ma 0.03 0.15 v pwrgd leakage current v dd = v pwrgd = 3.6v, v fb = 0.9v 0.01 a overcurrent limit current-limit startup blanking 128 clock cycles restart time 1024 clock cycles note 2: specifications are 100% production tested at t a = +25c. limits over the operating temperature range are guaranteed by design and characterization. note 3: guaranteed by design. electrical characteristics (continued) (v in = v dd = 3.3v, v fb = 0.5v, t a = -40c to +85c, typical values are at t a = +25c, circuit of figure 1, unless otherwise noted.) (note 2) ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ?o ?+v (typical values are: v in = v dd = 3.3v; v out = 1.8v, r freq = 50k , i out = 6a, and t a = +25c, unless otherwise noted.) n b y 9 7 5 7 7 b 3 n i { ]1o ? ? _______________________________________________________________________________________ 5 efficiency vs. output current output current (a) efficiency () max4 0 40 0 0 0 0 0 00 0. 0 v out = .2v v out = .v v out = 2.v v in = v dd = .v efficiency vs. output current output current (a) efficiency () max4 02 0 0 0 0 00 0. 0 v in = v dd = 2.v v out = .2v v out = .v v out = .v efficiency vs. output current output current (a) efficiency () max4 0 0 0 0 0 00 0. 0 v out = .v v out = .2v v out = .v v in = 2.v v dd = .v frequency vs. input voltage input voltage (v) frequency (h) max4 04 2.2 2. .0 .4 . 00 00 200 0 00 0 00 0 2 c - 40 c 2 c c c - 40 c load regulation load current (a) output voltage charge () max4 0 024 -0.40 -0. -0.0 -0.2 -0.20 -0. -0.0 -0.0 0 v out = .v v out = .2v v out = 2.v v in = v dd = .v load transient 40 sv max4 0 i out v out av 0a ac-coupled 0vv v in = v dd = .v switching waveforms 00sv max4 0 v lx v out i lx 2vv 2av 0v 0a ac-coupled 20vv soft-start waveform 400 shutdown waveforms 0 sv max4 0 v out v en vv 0v 0v 2vv r load = 0. n b y 9 7 5 7 7 b 3 n i { ]1o ? ? 6 _______________________________________________________________________________________ ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ?o ?+v )? * (typical values are: v in = v dd = 3.3v; v out = 1.8v, r freq = 50k , i out = 6a, and t a = +25c, unless otherwise noted.) input current vs. input voltage input voltage (v) input current ( current limit vs. output voltage output voltage (v) current limit (a) max4 0. .0 . 2.0 2. 2 4 400 sv max4 2 i in i out v out av av vv 0a 0a 0v hiccup current limit rms input current during short-circuit vs. input voltage (c 4 = 0.022 f) input voltage (v) rms input current (a) max4 2.0 2. .0 . 4.0 0 0.0 0.0 0. 0.20 0.2 0.0 0. 0.40 0.4 0.0 v out = 0v exposed pad temperature vs. ambient temperature temperature ( c) exposed pad temperature ( c) max4 4 0 20400000 0 20 0 40 0 0 0 0 0 00 0 20 v out = .v a load measured on a max4 ev kit feedback voltage vs. temperature temperature ( c) feedback voltage (v) max4 -40 - 0 0 0. 0. 0. 0. 0.0 0. 0.2 0. 0.4 starting into prebiased output 00 sv c ss = 00f c o = 22 f l = 0. h v out = 2.v max4 2vv 2vv v en v out v pwrgd 0v 0v vv 0v soft-start with refin 200 sv max4 v pwrgd v out v refin i in vv 2vv av 0v 0v 0a 0.vv 0v n b y 9 7 5 7 7 b 3 n i { ]1o ? ? _______________________________________________________________________________________ 7 ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` [ m? 1 prebias 2v dd 3, 4 ctl1, ctl2 5 refin 6ss 7 gnd 8 comp 9fb 10 out 11 freq 12 pwrgd 13 bst 14, 15, 16 lx 17?20 pgnd 21, 22, 23 in 24 en ?ep [ m a ? ?? -|y { ?[ m -2 4?r?? 9? e s ?[ m { h o e?l ?? ?????r ] j ?? [l 5r?0 - 2 1 ? { w e e ? j o w e e ? h o e . { 2 n b y 9 7 5 7 7 b 3 n i { ]1o ? ? 8 _______________________________________________________________________________________ ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` 1 vd control logic in lx pgnd prebias in bst thermal shutdown soft-start voltage reference bias generator oscillator 1v p-p shutdown control uvlo circuitry v dd shdn fb 0.9 x v refin ss fb comp gnd pwrgd freq error amplifier pwm comparator current-limit comparator ilim threshold bst capacitor charging switch lx comp low detector en refin vid voltage- control circuitry out ctl2 ctl1 8k n b y 9 7 5 7 7 b 3 n i { ]1o ? ? _______________________________________________________________________________________ 9 d 2 / ! 2 n i { w p v u > ! 2 / 9 w n b y 9 7 5 7|]?#??? ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` .? n b y 9 7 5 7? i h?1 y+ ? ?? 7 b|r ? ? n b y 9 7 5 7 ?+? 3 / 4 6 w? 4 / 7 wr??? *? -2 1 / 7 w? 1 / : y w j o |r?1' ;?8 ] ??b?s ?r??1 [t$ ? *? hr?1 t?? 2 & n b y 9 7 5 7 ?? w q| ? h *? -2#]?#? ?? 2 p~?0b ) ed 2 * ? h??g c?aj]? h n b y 9 7 5 7gco ) 5 n n y 5 n n *? 3 5[ mo r g o v? s f g j o' n b y 9 7 5 7 - /? e e s [ ?? [? g]? s e t ) p o * ) 3 4 n n b y 9 7 5 7 7 b 3 n i { ]1o ? ? 10 ______________________________________________________________________________________ ? "? ] n p t g f u ?? 2 2 b )?o? * y?? ?"i- m y |? % ?" n p t g f u 4 l 4[s 4[s ?? ??u ? ? ??? " ?"z s ]?4 9@ ]?r?1??y? ?" n b y 9 7 5 7g le y+ ?ra 5 ` -z " e .? + w g c ?? 5 3 1 n w@&?? ??3| . - 2 3 =? = c r2 r1 refin max8646 n b y 9 7 5 7 7 b 3 n i { ]1o ? ? ______________________________________________________________________________________ 11 ? y+ q? f o? h o e2 ? j d% ??? s ]? 2 3 +? ?????????? ??+???? ??????????? ?????? ? ?? ?? ? = ? = ? = ? = ? = ? =+ + = ? ? ??? n b y 9 7 5 7 7 b 3 n i { ]1o ? ? 12 ______________________________________________________________________________________ r???? r????e? ]? vr???|? y? ? ? j d|| r?????? tm? e?+ |?2?r??f?1??* *?@&' ( c?r???| ??f? "c? | w j o . s j q q m f ?r??????|"mr??f?1 pg ????"cr??1| 3 & e?4 9 ) w p v u 0 w j o * u t ? 2e ) 2 0 g t * ? ? h|r??? bc?r???| - ' ? ? y 0 -r?? 5?r??? l 5 ??? ?m|r???r???? j ? ?[?|?f? s n tr??f? ? + ?? | j s j q q m f ?r? s n t?f? w?? ??r =k?w ?? [ ? ?w ???r if? m [r if?? d p ? r if??| f t s ? ?w ?? [ ?? h?+ ? | s m ?r? | e d s [] ? s e t ) p o * | [ s e t ) p o * |?o?? 3 4 n ??? ????????????? ??????+?????? ?+????????? ? ???????? ?????????=???? ? ??????????? ?????????????? ?? ???????? ??????????? ???????? ?????????? ? ????????+?? ??????? ??????????=? ???????????? ?=?????? ????? ???? ??????? +? = ? = = = = = == + + ? ? ? ? ? ? = ? = ? n b y 9 7 5 7 7 b 3 n i { ]1o ? ? ______________________________________________________________________________________ 13 | - ? h g d b? ? h g t | 2 1 &? 3 1 &? . w | - ? h -2{u ? p|~?0ba g d ?? d 2 ? ? e 1 ?r ? ??r m dw ??| v s j j jow?| y ?? h????? m dw ??? h2# ?|$? s y ?? h??? m dw ??? h| 9 1 & - 2{u? s? w? ?? g q 3 ` f b ??u g [ ` f t s -{u? s? w? ????u ? h| 2 0 3?m+ v d 3? i - ? h ?w ??? h ?d 1 - b w?i - ? h ???w ??? h # | - ? h ? {|? h??z?= z ]? s 2|? ? - ?c - ? h%j? + - ? hm? 3 1 1 l i { s j j jow?|? ????? # ? h 2 $?? ? s 4|n @?? 3 l ?+????????? ?? ?? ??????? ???????+?+? ??????????? ???????? ???? ?? ?? ?? ?? ?????? ? ? ?????????? ????? ??+ ? ??? ??????? ????????? ??? ? = ? = = + + = + + = + a) b) ?? n b y 9 7 5 7 7 b 3 n i { ]1o ? ? 14 ______________________________________________________________________________________ q d cz e [zv | q d cz y{???| ?+? ;?? n @lm n b y 9 7 5 7? e?|z v y{" v?i u" | q d cz ?%- e ? 2 * sr? [r?? {? ? h? s???? {?g s? 3 * s w e e w j o [ t t?|?? -? # j d 9?@& $b|[ mg? {#? ? h? ) {? q h o e * [g s? ) {? h o e * ? - 4 * -??a& q|m? 5 ?a ? 5 ?@ -?c? m yr?? [r???p? | ? 5 5 * s j o m y [ q h o e j0 {? wm| g5 a2 ?e j d2z ?[ i h [?e - #v 6 * i???| ( c #a&? ( c? [w?? hb - # j d 9? 7 * ? ??|# )? m y *b ?e - e | y l? ) g c d p n q * d 5 / ! j j jow?, ? ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` `g? process: bicmos ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` [ m|? double pole gain (db) second pole first and second zeros power-stage transfer function compensation transfer function open-loop gain third pole thin qfn max8646 19 20 21 22 12 3456 18 17 16 15 14 13 23 24 12 11 10 9 8 7 pgnd in pgnd in en prebias v dd ctl1 ctl2 refin ss pgnd pgnd lx lx bst in pwrgd out freq fb gnd comp lx top view + n b y 9 7 5 7 7 b 3 n i { ]1o ? ? ______________________________________________________________________________________ 15 ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` v?g? ( tk ?t ? | v?d -y5" | ???" | v?jpg??? www.maxim-ic.com.cn/packages ) 24l qfn thin.eps n b y 9 7 5 7 7 b 3 n i { ]1o ? ? ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ?? ?% s f w ! 2||? ?? 2 6 7 8 2 1 ? 2 5 s f w ! 3||? ?? 2 3 5 9 : 2 4 2 6 2 7 ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` v?g? )? * ( tk ?t ? | v?d -y5" | ???" | v?jpg??? www.maxim-ic.com.cn/packages ) n b y j ny n b y j n?-2j|? \? 5' ? y ?? - n b y j n? ?? \ . ??? \0| ? ??- t ? [ ?|z ? 16 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2007 maxim integrated products bynousbuesevdut-od byn 0 9439g v i 211194 9119211421 1217322 62 1217322 63 |
Price & Availability of BD9161FVM-TR
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |