NJU7382 - 1 - dual h bridge driver with comparator general description the NJU7382 is a dual h-bridge driver ic especially developed low voltage small stepper motor applications. it consists of a pair of low consumption cmos h-bridge drivers protected by thermal shutdown circuit. it is also including a general-purpose comparator suited for detection from photo reflector as rotor position sensor or current limitation. the NJU7382 adopt a very small ffp package, it is suitable for mobile or portable applica tions using micro stepper motors. package outline features ? operating voltage 2.0v to 5.5v ? two cmos h-bridge drivers for stepper motor driving ? motor output current 200ma(continuous), 400ma(peak) ? chip enable function ? general purpose comparator ? thermal shutdown circuit ? cmos technology ? package outline ffp16 (2.5 2.5 h0.85mm) block diagram NJU7382pc1 NJU7382pc1 comp- comp+ ceb cea ina outa1 outa2 gnd inb vdd m tsd control logic control logic outb1 outb2 comp out njl5901r-1
NJU7382 - 2 - pin configurations absolute maximum ratings (ta=25 c) parameter ratings symbol (unit) remarks supply voltage +7.0 v dd (v) logic input voltage -0.3~v dd v id (v) note1 motor output current (peak) 400 i opeak (ma) comparator output current 10 i copeak (ma) comparator output voltage +7.0 vc(v) operating temperature -40~+85 to p r ( c) storage temperature -50~+150 tstg ( c) power dissipation 300 p d (mw) on pcboard note1: if the supply voltage ( v dd ) is less than 7v, the input voltage must not over the v dd level though 7v is limit specified. 1. ce a 9. comp+ 2. vdd 10. vdd 3. ce b 11 nc 4. in b 12. comp out 5. out b2 13. out a1 6. gnd 14. gnd 7. out b1 15. out a2 8. comp- 16. in a 6 5 3 2 1 12 9 8 7 4 11 10 13 14 15 16 2 3 4 9 12 13 14 15 16 1 10 11 8 7 6 5 top view top view bottom view bottom view 3 2 1 12 9 8 7 4 11 10 13 14 15 16 3 2 1 12 9 8 7 4 11 10 13 14 15 16 2 3 4 9 12 13 14 15 16 1 10 11 8 7 6 5 2 3 4 9 12 13 14 15 16 1 10 11 8 7 6 5 top view top view bottom view bottom view (note) all vdd and gnd pins should be connected the power supply and the ground respectively. otherwise, the electrical characterist ic may not satisfy specifications.
NJU7382 - 3 - ver.2006-02-27 recommended operating conditions (ta=25 c, v dd =3.3v) parameter symbol min. typ. max. unit supply voltage range v dd 2.0 - 5.5 v junction temperature tj -20 - 125 dg.c motor output current i o - - 200 ma electrical characteristics (ta=25 c, v dd =3.3v, unless otherwise specified) parameter symbol conditions min. typ. max. unit general operating current 1 i dd1 in a=in b=ce a=ce a=0v - 100 500 ua operating current 2 i dd2 in a=in b=0v,ce a=ce b=3v - 100 - ua thermal shutdown t tsd - - 180 - c thermal shutdown hysterisis t hys - - 30 - c drivers logic input current i i v ih =3v, note2 - - 1 a logic high input voltage v ih note2 2.4 - - v logic low input voltage v il note2 - - 0.6 v high output voltage v oh io=+100ma - 3.1 - v low output voltage v ol io= -100ma - 0.2 - v comparator input offset voltage v io - -12 - +12 mv input bias current i ib - - - 1 a common mode input voltage range v icm - 0 - 2.8 v output voltage vsat rl=10k ? - 0.3 - v output leak current i co leak v co =5.5v - - 1 a note2 : refers to ?in? terminal and ?ce? terminal.
NJU7382 - 4 - truth table timing chart *ia and ib mean that the current flowing through output a1 and output a2, output b1 and output b2. ce a in a out a2 out a1 ce b in b out b2 out b1 l x z z l x z z h l h l h l h l h h l h h h l h [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. [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. ce a ce b in a in b i a ib
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