NJW4371 - 1 - ver.2009 - 01 - 27 dual h bridge driver general description package outline the nj w4371 is a general purpose dual h bridge driver ic. it consists of a pair of nch dmos h bridges, gate driving charge pump circuit, thermal shut down and uvlo circuit. each h bridge can individually be controlled with ttl/cmos compatible signal. therefore, it is applicable for a wide range of applications such as driving a two phase stepping motor, two dc brushless motors, solenoids, lamps and other high voltage switching needs using mic ro controller. features wide voltage range v mm =10 to 27 v low on resistance r on =1.65 w typ.@io= 1000ma low quiescent current i mm =10ma typ. pwm control available under voltage lock out (uvlo) thermal shutdown circuit bcd process technol ogy package outline emp24 pin configurations sense a 1 24 vcp ina1 2 23 ina2 enable a 3 22 outa2 nc 4 21 nc outa1 5 20 vmm a gnd 6 19 gnd gnd 7 18 gnd outb1 8 17 vmm b nc 9 16 nc enable b 10 15 outb2 inb1 11 14 inb2 sense b 12 13 cp NJW4371e3
NJW4371 - 2 - ver.2009 - 01 - 27 a bsolute maximum ratings ( ta=25 c ) parameter ratings symbol (unit) note maximum supply voltage 31 v s (v) charge pump output voltage 40 v cp (v) o utput current 0.8 i o (a) output current (peak) 1.5 i o (a) operating temperature - 40 ~ +85 topr ( c) storage temperature - 50 ~ +150 tstg ( c) 5.0 t gnd =25 c total power dissipation (emp) 2.0 p d (w) t gnd =125 c operating conditions ( ta=25 c) parameter symbol test condition min. typ. max. unit supply voltage v mm 10 - 27 v junction temperature range t j - 40 - 125 c output current i o - - 0.7 a electrical characteristics ( v mm =24v, ta=25 c) parameter symbol test condition min. typ. max. unit n general quiescent current i mm ina1=inb1=h, ina2=inb2=l - 10 15 ma under voltage lockout uvlo 6.3 6.8 7.3 v hysteresis voltag e duvlo 0.25 0.35 0.45 v thermal shutdown t sd - 180 - c thermal shutdown hysteresis t hys - 50 - c n logic input high voltage v ih 2 - - v input low voltage v il - - 0.8 v h level input current i ih vi=2.0v - - 1 m a l level input current i il vi=0 .8v - 1 - - m a n charge pump cp output voltage v cp c cp =10nf, cvcp =100nf - v mm +8 - v oscillation frequency fosc c cp =10nf, cvcp =100nf - 500 - khz n output r onh io= +1000ma - 0.85 1.35 output on resistance r onl io= - 1000ma - 0.80 1.30 w leak current ileak enable=l - - 0.5 ma dead recovery time td - 500 - ns delay time tpd - 200 - ns
NJW4371 - 3 - ver.2009 - 01 - 27 ina1(b1) outa1(b1) outa2(b2) enable a(b) ina2(b2) tpd1 tpd2 tpd1 tpd2 te hi-z truth table timing condition ina1 ina2 outa1 outa2 inb1 inb2 outb1 outb2 l l l l short break 1 l h l h cw h l h l ccw h h h h short break 2 output mode all transistor turend off output (h=source,l=sink) x x input (l=low,h=high,x=don't care) enable a=h enable b=h enable a=l enable b=l
NJW4371 - 4 - ver.2009 - 01 - 27 block diaglam tsd vmm a ina1 ina2 enable a v mm b inb1 inb2 enable b sense b outb2 outb1 vcp sense a outa2 outa1 uvlo charge pump cp
NJW4371 - 5 - ver.2009 - 01 - 27 application circuit vm gnd + motor sense a in a1 enable a out a1 gnd out b1 nc gnd enable b in b1 sense b cp in b2 out b2 nc vmm b vmm a out a2 in a2 vcp gnd gnd controller NJW4371 nc nc
NJW4371 - 6 - ver.2009 - 01 - 27 typical characteristics io vs. ronh ina1=5v, enablea=5v ccp=10nf, cvcp=100nf, meas:outa1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 200 400 600 800 1000 1200 1400 1600 1800 2000 io[ma] ronh[o] -50dg.c 25dg.c 125dg.c 150dg.c tj io vs. ronl ina1=0v, enablea=5v ccp=10nf, cvcp=100nf, meas:outa1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 200 400 600 800 1000 1200 1400 1600 1800 2000 io[ma] ronl[o] -50dg.c 25dg.c 125dg.c 150dg.c tj vmm vs. ronl ina1=0v, enablea=5v, io=1000ma ccp=10nf, cvcp=100nf, meas:outa1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 5 10 15 20 25 30 35 40 vmm[v] ronl[o] -50dg.c 25dg.c 150dg.c tj vmm vs. imm ina1=inb1=0v, ina2=inb2=5v, enablea=enableb=5v ccp=10nf, cvcp=100nf 0 2 4 6 8 10 12 14 0 5 10 15 20 25 30 35 40 vmm[v] imm[ma] -50dg.c 25dg.c 150dg.c tj vmm vs. vcp ina1=inb1=0v, ina2=inb2=5v, enablea=enableb=5v ccp=10nf, cvcp=100nf 0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 30 35 40 vmm[v] vcp[v] -50dg.c 25dg.c 150dg.c tj vmm vs. ronh ina1=5v, enablea=5v, io=1000ma ccp=10nf, cvcp=100nf, meas:outa1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 5 10 15 20 25 30 35 40 vmm[v] ronh[o] -50dg.c 25dg.c 150dg.c tj
NJW4371 - 7 - ver.2009 - 01 - 27 [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.
|
