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| ???t|7 y
[???3??w ? tx?3tw????]b;<^m{ x x x n b y j n j d d p n ????3??tgl^?h o0xz?t???3tw?s???3????`h?wpb{?t?? \a? t|??t mmow y x ?mtv?b{ y?s o0w rtx?3tw?w???3???]? <^m{ ________________________________________________________________ maxim integrated products 1 ?a ___________________________________ . " 9 a??? & 7??? xz . " 9 w a j "??-?3??s??? a`?b{\w % $ % $ ???x? ?y?a?t| x " $???? a???`oz????z % 3 " . ?ot| ? ?y ?o;w? ^ s ? ?o ?y? \ r`?b{ . " 9 & 7???xz 7? 7w?a? ?? c? t???? 7t| 7 z? ?y???`?b{ ????? * t :x l ) [ pz z?t ? w?pp7 g "w z? ?v???`z?h??? t| ?ya i t ? q? ?qom?b{ ? & 7???x ?? a?z?ga?ws?, xpb{ ?????? ? 3 ? 3 ?|?b?qz 7? 7 c?w z? ?yw a?d pb{ ? ? ___________________________________ ?? ?y c? 7? 7 { z? ?y 7t| 7 d! z? 7? 7 z? ?v " ????? * t : l ) [ ?vu z ?s` ????? z? ?-? e? 2 4 0 1 , ? ? ?? a?z?ga? evaluates: max1715 . " 9 a??? 19-1648; rev 1; 5/00 ? ??? ________________________________________________________________________ j ___________________________________ 100 ? ?% resistors (0805) 2 r11, r12 qty description designation max1715 ev kit data sheet 1 none max1715 data sheet 1 none max1715 pc board 1 none rubber feet 4 none dip-6 dip switch 1 sw1 max1715eei (28-pin qsop) 1 u1 100k ? ?% resistor (1206) 1 r5 20 ? ?% resistor (1206) 1 r13 1m ? ?% resistors (1206) 3 r6, r7, r8 10k ? ?% resistors (1206) 2 r2, r4 not installed 0 r1, r3, r9, r10 dual n-channel mosfets fairchild fds6982 2 n1a, n1b, n2a, n2b 3.9? power inductor sumida cdrh124-3r9mc 1 l1 4.7? power inductor sumida cdrh124-4r7mc 1 l2 1000pf ceramic capacitors (1206) 2 c12, c13 100ma, 30v dual schottky diode central semiconductor cmpsh-3a 1 d3 1a, 30v schottky diodes nihon ep10qy03 2 d1, d2 4.7?, 16v tantalum capacitor sprague 595d475x0016a2b 1 c9 3.3?, 10v x5r ceramic capacitor (1206) taiyo yuden lmk316bj335ml 1 c14 not installed 0 c10, c11 1 f, 10v x5r ceramic capacitor (0805) taiyo yuden lmk212bj105mg 1 c8 0.22? ceramic capacitor (1206) 1 c7 0.1? ceramic capacitors (0805) 2 c5, c6 330?, 6.3v low-esr capacitors kemet t510x337m010as or sanyo 6tpb330m 2 c3, c4 qty description c1, c2 2 10?, 25v ceramic capacitors (1812) taiyo yuden tmk432bj106km or tokin c34y5u1e106z designation part MAX1715EVKIT temp. range 0? to +70? ic package 28 qsop evaluates: max1715 . " 9 a??? 2 _______________________________________________________________________________________ ??????? _______________________ . " 9 & 7???x ?? a?z?ga?pb{ ?<w qp . " 9 a j "??-?3??s? ? a`o<^m{ s?u ?oq??? ?yt y`x ? ^?om? \q?? y`?b{ ?ow ? u?b??p ?o ? d ?`smp<^m{ ??? 0 / q 0 / 4 8 u|?? ?tk?\q? ? y`?b{ 7?? ?ow 2t?a? ?o????|? `?b{\w?ot`smq z? 6 7 - 0??u ????`o ' " 6 - 5???u??^?za ?? z?u????^??b{\w??? ? y 6x 7 ?ou???^??tzk?mx 0 / 0 / u???^???p v?b{ z? ?yu 7t| 7pk?\q?? y`?b{ fw w z? ?yw a ? & 7???x 7t| 7t'? ? ^?om?b{ `t`z 3 3 t| 3 3 ?? ? rb?\qt?lo z? ?y? 7? 7wp e ?b?\q?pv?b{ ?????? ? 3 t| 3 ? ? r`?b{ 3 q 3 x?<wp ????b{ 3 x 3 3 x 3 y < 7 0 6 5 7 ' # > \\pz 7 ' # 7pb{ ? & 7???xz 3 t| 3 q`o mw l ? ? ?qom?b{ ??t|???w ? t??? 4 8 w; ??`z ? t + 6 ? + 6 ??w; ??`?b{ on1 = off connected to gnd, v out1 = 0 sw1 location connected to v cc , v out 1 = 1.8v on1 = on on2 pin on1 pin ??? 4 8 w; * ?;+ s s k k i i p p pin on2 = on connected to v cc , v out2 = 2.5v on2 = off connected to gnd, v out2 = 0 skip = on connected to v cc , low-noise mode, forced fixed-frequency pwm operation. skip = off connected to gnd, normal operation, allows automatic pwm/pfm switchover for pulse skipping at light load, resulting in highest efficiency. supplier phone fax avx 803-946-0690 803-626-3123 central semiconductor 516-435-1110 516-435-1824 coilcraft 708-639-6400 708-639-1469 coiltronics 561-241-7876 561-241-9339 fairchild 408-721-2181 408-721-1635 motorola 602-303-5454 602-994-6430 nihon 847-843-7500 847-843-2798 sanyo 619-661-6835 619-661-1055 sumida 708-956-0666 708-956-0702 taiyo yuden 408-573-4150 408-573-4159 tokin 408-432-8020 408-434-0375 ? ?y? _____________________________ note: please indicate that you are using the max1715 when contacting these component suppliers. equipment 100mhz dual-trace oscilloscope digital multimeter (dmm) dummy loads capable of sinking 4a 5v at 100ma dc bias power supply 5v to 24v power supply, battery, or notebook ac adapter minimum requirements kemet 408-986-0424 408-986-1442 evaluates: max1715 . " 9 a??? _______________________________________________________________________________________ 3 ?? + 6 + 6 + 6 w; ????? * t :w ? r important: don? change the operating frequency without first recalculating component values because the frequency has a signifi- cant effect on the peak current-limit level, mosfet heating, preferred inductor value, pfm/pwm switchover point, output noise, efficien- cy, and other critical parameters. ?? + 6 w; z? ?yw ? r ?? + 6 w; 7 0 6 5 w{ d! ?v????w ? r ?? + 6 w; 7 0 6 5 w{ d! ?v????w ? r 470/630 340/460 frequency (khz) 255/345 170/230 ju2 on2 pin not installed not installed not installed ju1 connected to gnd installed not installed not installed connected to ref not installed installed not installed ju3 floating connected to v cc not installed not installed installed shunt location installed max1715 outputs v out1 = 3.3v v out1 = 1.8v fb1 pin connected to v cc connected to gnd through r2 not installed shunt location installed current-limit threshold 100mv (default) adjustable between 50mv and 200mv ilim1 pin connected to v cc connected to gnd through r9. refer to the current-limit circuit section in the max1715 data sheet for information on selecting r9. not installed shunt location installed current-limit threshold 100mv (default) adjustable between 50mv and 200mv ilim2 pin connected to v cc connected to gnd through r10. refer to the current-limit circuit section in the max1715 data sheet for information on selecting r10. not installed evaluates: max1715 . " 9 a??? 4 _______________________________________________________________________________________ gnd ilim1 ilim2 on1 on2 v+ v cc vcc vcc vcc vcc v dd vdd bst1 dh1 fb1 out1 dl1 ref lx1 421 d3 vbias +5v vbatt 5v to 24v 20 bst2 dh2 out2 pgnd pgood dl2 fb2 lx2 ton r13 20 ? c14 3.3 f 10v c8 1 f 10v c9 4.7 f 16v c12 1000pf c11 open c4 330 f 6.3v c1 10 f 25v c13 1000pf c2 10 f 25v c6 0.1 f n1b 18 d2 l2 4.7 h 17 16 19 25 26 27 24 1 2 9 5 3 25 16 34 10 11 6 22 14 13 8 7 12 vout2 2.5v 4a c3 330 f 6.3v 5 6 4 3 n1a d1 l1 ju4 ju2 340/460khz ju1 170/230khz float = 255/345khz ju3 470/630khz ref 2v 3.9 h r9 r6 1m r7 1m r8 1m r4 10k 1% r3 open ju5 ju6 r12 100 ? r5 pgood 100k r10 open sw1b sw1a sw1c open note: heavy lines denote high-current paths. max1715 "no-connect" pins: 15, 23, 28 r1 open r2 10k 1% r11 100 ? shorted (pc trace) shorted (pc trace) 8 7 1 2 n2a 7 8 2 1 n2b 6 5 3 4 gnd vdd vcc c5 0.1 f c10 open c7 0.22 f u1 max1715 skip vout1 1.8v 4a $ . " 9 & 7???ws? $ evaluates: max1715 . " 9 a??? _______________________________________________________________________________________ 5 $ . " 9 & 7???w ? ? ? $ ? ?? 1.0" $ . " 9 & 7???w ? ? ? $ ???? 1.0" $ . " 9 & 7???w???, x??? ? ?? 1.0" $ . " 9 & 7???w???, x??? ( / % 1.0" ?3tpx ? .u?3t a ?p?q^?om?s???ws?w?;tmmox y ??j?d?{s? ?????xt^? om?d?{ ?3tx 5's`ts?t|?7?!?b?vb?-y`?b{ 6 _____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2000 maxim integrated products is a registered trademark of maxim integrated products. evaluates: max1715 . " 9 a??? $ . " 9 & 7???w???, x??? ???? 1.0" $ . " 9 & 7???w???, x??? ( / % 1.0" b eg 3 ? f? n y s b ? > ?o? ?? 5 & - ' " 9 |
Price & Availability of MAX1715EVKIT
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