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Datasheet File OCR Text: |
www.shindengen.co.jp/product/semi/ u170-1 features absolute maximum ratings ta = 2 5 ta= 2 5 unless otherwise specified constant current control function (fixed frequency pwm control) 2bit w1-2 2-bit degital current selection (can operate quarter step operation) !" automatic current decay function #$%&'() noise cancellation function *+,- cross conduction protection ./01 thermal shutdown function 234567$89:;< built-in flywheel and flyback diodes parameter symbol rating unit logic supply voltage v cc 0 6 v ! logic input voltage v pha/i0/i1 0 v cc v vref ! vref input voltage v ref 0 v cc v "#$ load supply voltage v mm 50 v %!& output current i out 1.0 a '()*)#+,)-#.& flywheel diode current if 1.0 a /012 power dissipation p d 3w 3456 storage temperature t stg -40 150 7856 junction temperature t j 150 www.shindengen.co.jp/product/semi/ u170-1 electrical characteristics ta= 2 5 ,v cc =5v ta = 2 5 ,v cc =5v unless otherwise specified parameter symbol 9:; condition min. typ. max. unit output stage vmm <=& 2 >? off @ load supply current 2 circuit off i mm (off) v mm =45v, v i0/i1 =5v - - 10 ma ab%!cd output saturation voltage upper side v ce sat hi c =0.8a - 1.3 1.5 v eb%!cd output saturation voltage lower side v ce sat li c =0.8a - 1.2 1.4 v %!f#& output leakage current ir v mm =50v - - 10 g a ab,)-#.h diode forward drop upper side v f hi f =0.8a - 1.4 1.6 v eb,)-#.h diode forward drop lower side v f li f =0.8a - 1.3 1.5 v logic stage v cc <=& 2 >? on @ logic supply current 2 circuit on i cc (on) -3547 ma v cc <=& 2 >? off @ logic supply current 2 circuit off i cc (off) v i0/i1 =5v - 30 42 ma phase i h j ! phase i h j input voltage v pha h2.3-v cc v phase i l j ! phase i l j input voltage v pha lgnd-0.8v phase i h j !& phase i h j input current i pha hv pha =5v - - 10.0 g a phase i l j !& phase i l j input current i pha lv pha =0v - -1.0 -10.0 g a i0,i1 i h j ! i0,i1 i h j input voltage v i0/i1 h2.3-v cc v i0,i1 i l j ! i0,i1 i l j input voltage v i0/i1 lgnd-0.8v i0,i1 i h j !& i0,i1 i h j input current i i0/i1 hv i0/i1 =5v - - 10.0 g a i0,i1 i l j !& i0,i1 i l j input current i i0/i1 lv i0/i1 =0v - -2.0 -10.0 g a vref !& vref input current i ref v ref =0v - -1.0 -10.0 g a vs !& vs input current is vs=0v - -1.0 -10.0 g a comp klmn*#+. 100 o comparator threshold 100% vs1 v ref =5v, i0=l, i1=l 0.475 0.500 0.525 v comp klmn*#+. 70 o comparator threshold 70% vs2 v ref =5v, i0=h, i1=l 0.322 0.350 0.378 v comp klmn*#+. 40 o comparator threshold 40% vs3 v ref =5v, i0=l, i1=h 0.180 0.200 0.220 v pqrstuvw chopping frequency f chop ct=4700pf,rt=13k x -22- khz y(szst$)[ blanking time t b ct=4700pf - 2.2 - g s \]3^_`56 thermal shutdown temperature t tsd - 150 - www.shindengen.co.jp/product/semi/ u170-1 recommended external components value recommended operating conditions ta = 2 5 ta = 2 5 unless otherwise specified !"#$%& setting of output current and chopping frequency output current setting chopping frequency setting hz '()* typical application symbol ab recommendation unit rs 0.68 x rt 13 k x ct 4700 pf r1+r2 c 10 k x parameter symbol ab recommendation unit 7856 junction temperature t j -25 120 logic supply voltage v cc 4.5 5.5 v "#$ load supply voltage v mm 8 45 v out 1 out 2 out 4 out 3 constant current waveform motor current ichop t=1/fchop lchop vref 10 rs fchop 1 0.75 ct rt www.shindengen.co.jp/product/semi/ u170-1 mode +,-.$/01 w1-2 2345 !678 pin assignment top view mtd2007f slow decay mode fast decay mode auto decay mode package hsop28 nc vmm a out 1 nc rs a nc out 2 gnd out 3 nc rs b nc out 4 vmm b nc vcc phase a i0 a i1 a vs a vref a lg gnd cr vref b vs b i1 b i0 b phase b vcc 9:;< truth table phase a or b out 1 or 4 out 2 or 3 llh hhl i0 a or b i1 a or b outpu current level % vs v at vref=5v l l 100 0.50 d 5% hl 70 0.35 d 8% lh 40 0.20 d 10% hh 0 - ] ? 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