NJU7365 - 1 - NJU7365rb1 single-phase dc brushless motor driver ic ? general description ? package outline ? features ? supply voltage v dd =2.0 to 5.5v ? low quiescent current i dd =1ma typ. ? maximum output voltage v oh =4.7v typ.@ io=+350ma, v ol =0.2v typ.@ io=-350ma ? direct pwm input ? lock detect ? fg output ? thermal shutdown circuit ? cmos technology ? package outline tvsp8 ? block diaglam ? pin function pin no. pin name 1 outb 2 vdd 3 in+ 4 in- 5 fg 6 pwm 7 outa 8 gnd the NJU7365 is a single phase motor driver ic. it features a mos fet mo tor driver, direct pwm input, fg output and thermal shutdown circuit. the driver is capable of 1000ma maximum outpu t current and continuous current of 350ma. outb in+ in - gnd outa pwm fg vdd 1 2 4 8 7 5 - + 3 6 - + pwm tsd lockdet - +
NJU7365 - 2 - ? absolute maximum ratings (ta=25 c) (*1): mounted on glass epoxy board based on eia/jedec. (76.2 114.3 1.6mm: 2-layers fr-4) ? recommended operating conditions (ta=25 c) parameter symbol test condition min. typ. max. unit supply voltage v dd - 2.0 5.0 5.5 v parameter symbol ratings unit supply voltage v dd +7 v input voltage v id -0.3 to v dd v pwm input voltage v pwm -0.3 to v dd v output current (peak) i opeak 1000 ma fg output current i fg 10 ma fg output voltage v fg +7.0 v device itself 400 power dissipation p d (*1)mounted on 2layer board 510 mw operating temperature topr -40 to +85 c junction temperature tjmax 150 c storage temperature tstg -50 to +150 c
NJU7365 - 3 - ? electrical characteristics (v dd =5v, ta=25 c) parameter symbol test condition min. typ. max. unit ? general quiescent current i dd in+=3.9v, in-=0.4v - 1.1 1.8 ma thermal shutdown operating temperature t tsd - - 170 - c thermal shutdown hysteresis t hys - - 20 - c ? hall amp block input offset voltage v io - -10 - 10 mv common mode input voltage range v icm - 0.4 - 3.9 v close-loop gain a v - - 46.4 - db ? output block v oh i o = +350ma 4.6 4.7 - v output voltage v ol i o =-350ma - 0.2 0.3 v fgl output voltage v fg i fg =5ma - - 0.2 v fgh leak current i fg-leak v fg =5v - - 1.0 ua ? pwm input block pwm input frequency f pwm - 2 - 50 khz pullup resistance r pwm - - 200 - k ? input h level voltage1 v ihp1 - 3.0 - - v input h level voltage2 v ihp2 v dd =2v 1.4 - - v input l level voltage1 v ilp1 - 0 - 1.5 v input l level voltage2 v ilp2 v dd =2v 0 - 0.5 v ? lock detect block lock detect on time t on - - 0.66 - s lock detect off time t off - - 6.6 - s lock detect ratio t ratio - - 1:10 - -
NJU7365 - 4 - ? truth table no. in+ in - pwm tsd ld outa outb fg 1 h l h off off h l l 2 l h h off off l h z 3 h l l off off l l l 4 l h l off off l l z 5 h l h on off l l l 6 l h h on off l l z 7 h l l on off l l l 8 l h l on off l l z 9 h l h off on l l z 10 l h h off on l l z 11 h l l off on l l z 12 l h l off on l l z 13 h l h on on l l z 14 l h h on on l l z 15 h l l on on l l z 16 l h l on on l l z z : high impedance *fg output turns to ?l? when pwm ?l? state is within fixed time(90ms typ.). ? timing chart at pwm ? timing chart at lock detect in+ in- outa outb fg motor loc ked motor released toff ton toff motor lock protection in+ in- pwm outa outb fg 90ms(typ.) enable disable pwm enable lock protect enable (internal)
NJU7365 - 5 - ? typical application circuit ? power dissipation vs. ambient temperature outb vdd in- in+ ou t vss fg pwm hall element r1 vdd motor c1 d1 m r2 NJU7365rb1 p d vs. ta (topr=-40 to +85c,tj=150c) 0 100 200 300 400 500 600 700 800 -50 -25 0 25 50 75 100 ambient temperature ta(c) power dissipation p d (mw) mounted on 2layer board(fr4 114.376.21.6mm) device itself
NJU7365 - 6 - ? typical characteristics [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. idd vs. vdd in+=v dd, in- =gnd 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 234567 vdd [v] idd [ma ] vfg vs. ifg vdd=5v, in+=vdd, in-=gnd 0 0.05 0.1 0.15 0.2 0.25 0.3 0246810 ifg [ma ] vfg [v] voh(sat) vs. vdd in+=vdd, in-=gnd, io=350ma 0 100 200 300 400 500 600 700 800 900 1000 234567 vdd[v] voh(sat) [mv] vol(sat) vs. vdd in+=gnd, in-=vdd, io=350ma 0 100 200 300 400 500 600 700 800 900 1000 234567 vdd [v] vol(sat) [mv] voh(sat) vs. io vdd=5v, in+=vdd, in-=gnd 0 100 200 300 400 500 600 700 800 900 1000 0 200 400 600 800 1000 io [ma ] voh(sat) [mv] vol(sat) vs. io vdd=5v, in+=gnd, in-=vdd 0 100 200 300 400 500 600 700 800 900 1000 0 200 400 600 800 1000 io [ma ] vol(sat) [mv]
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