102 ics sla7075mr, mpr, mprt/7076mr, mpr, mprt/7077mr, mpr, mprt/7078mr, mpr, mprt absolute maximum ratings parameter symbol ratings unit remarks motor supply voltage v m 46 v driver supply voltage v bb 46 v logic supply voltage v dd 6v output current io *1 a v ref=0.4v, mode f logic input voltage v in ?.3 to v dd +0.3 v ref input voltage v ref ?.3 to v dd +0.3 v sense voltage v rs 2v excluding tw<1 s power dissipation pd 4.7 w when t a = 25 c 17 when t c = 25 c junction temperature t j +150 c operating ambient temperature t a ?0 to +85 c storage temperature t stg ?0 to +150 c features lineup of built-in current sense resistor and built-in protection circuit-type power supply voltages, v bb : 46 v (max), 10 to 44 v normal operating range logic supply voltages, v dd : 3.0 to 5.5 v maximum output currents: 1 a, 1.5 a, 2 a, and 3 a clock input method (built-in sequencer) self-excitation pwm current control with fixed off-time synchronous pwm chopping function prevents motor noise in hold mode sleep mode for reducing the ic input current in stand-by state zip type 23-pin molded package (sla package) *1: output current value may be limited for the sla7075mr, mpr, mprt (1.0 a), sla7076mr, mpr, mprt (1.5 a), sla7077mr, mpr, mprt (2.0 a), and sa7078mr, mpr, mprt (3.0 a), depending on the duty ratio, ambient temperature, and heating conditions. do not exceed junction temperature of t j under any circumstances. recommended operating conditions parameter motor supply voltage driver supply voltage logic supply voltage case temperature symbol v m v s v dd t c unit v v v c rating min. max. 44 10 44 3.0 5.5 90 remarks the v cc surge voltage should be 0.5 v or lower t emperature at pin-12 lead (without heatsink) parameter symbol unit ratings min. max. typ. conditions 15 100 5 0.85 0.6 0.4 0.24 1.1 1.25 1.2 2.1 0.25v dd 0.3 0.45 0.4 0.45 v dd 0.314 0.314 0.211 0.160 0.75 1.25 1.25 i bb i bbs i dd v (br)dss r ds(on) v f fclock v il v ih i il i ih v ref v refs i ref v sense t se t con t coff r s v ocp i ocp t std v lol v loh i lol i loh modef modee moded modec modeb modea mode9 mode8 mode7 mode6 mode5 mode4 mode3 mode2 mode1 ton(min) toff1 toff2 toff3 main supply current logic supply current output mosfet breakdown voltage output mosfet on resistance output mosfet diode forward voltage maximum clock frequency logic input voltage logic input current ref input voltage ref input current sense sense voltage sleep-enable recovery time switching time sense resistance overcurrent sense voltage overcurrent sense current thermal protection temperature logic output voltage logic output current step reference current ratio pwm minimum on time pwm off time 100 250 0.75v dd 0.04 0.04 0.04 0.04 2 100 0.296 0.296 0.199 0.150 0.65 v dd ?.25 ?.25 0.7 0.45 0.25 0.18 0.85 1.0 0.95 0.95 1 1 10 v ref 2.0 1.5 0.305 0.305 0.205 0.155 0.7 2.3 3.5 4.6 140 100 98.1 95.7 92.4 88.2 83.1 77.3 70.7 63.4 55.5 47.1 38.2 29.0 19.5 9.8 1.7 12 9 7 in operation sleep 1 and sleep 2 modes vbb=44v, i d =1ma sla7075m, i d =1.0a sla7076m, i d =1.5a sla7077m, i d =2.0a sla7078m, i d =3.0a sla7075m, i d =1.0a sla7076m, i d =1.5a sla7077m, i d =2.0a sla7078m, i d =3.0a when clock duty = 50% sla7075m, within the specified current limit sla7076m, within the specified current limit sla7077m, within the specified current limit sla7078m, within the specified current limit output (off) sleep 1 when step reference current ratio is 100% sleep1&sleep2 clock out on clock out off sla7075m, tolerance of 3% sla7076m, tolerance of 3% sla7077m, tolerance of 3% sla7078m, tolerance of 3% sla707xmpr, mprt, when motor coil shorts out sla7075mpr, mprt/7076mpr, mprt sla7077mpr, mprt sla7078mpr, mprt sla707xmprt, rear of case (at the saturation temperature) sla707xmpr, mprt, iflagl=1.25ma sla707xmpr, mprt, iflagh=-1.25ma sla707xmpr, mprt mode 8 to f mode 4 to 7 mode 1 to 3 ma a ma v ? v khz v a v a v s s s ? v a c v ma % % % % % % % % % % % % % % % s s s s electrical characteristics 2-phase to 4w 1-2 phase excitation support, built-in sequencer 1-2-1 2-phase stepper motor unipolar driver ics
103 ics pin assignment internal block diagram + + outb outb outa outa outa outa outb outb v dd m o flag ref/sleep1 m1 m2 m3 cw/ccw clock reset v bb r s senseb r s sensea 1234 5 67 8916 10 15 11 20 21 22 23 14 mic 15 17 12 19 18 protect sequencer & sleep circuit pre- driver osc pwm control synchro control osc sync gnd dac dac pwm control protect reg pre- driver the protect circuit is deleted and the flag pin is n.c. for sla7075mr, 7076mr, 7077mr, and 7078mr. *1: n.c. pin for sla7075mr, 7076mr, 7077mr, and 7078mr. t ypical connection diagram outb outa outa vdd c1 r1 q1 sla7070m series (2-phase/4 w1-2 phase e xcitation) reset clock cw/ccw m1 m2 m3 sync m o flag ref/sleep1 outb ca vs=10v to 44v + bb sensea gnd c2 logic gnd pow er gnd cb + r2 micro- computer, etc. r3 senseb vcc=3.0v to 5.5v one-point gnd * there is no flag pin (pin 18) for sla7075mr, 7076mr, 7077mr, and 7078mr. external dimensions (zip23 with fin [sla23pin]) 31 0.2 24.4 0.2 16.4 0.2 3.2 0.15 0.65 22p 1.27 0.5 =27.94 1 3.2 0.15 3.8 +0.2 ?.1 0.55 +0.2 ?.1 9.5 +1 ?.5 31.3 0.2 9.9 0.2 12.9 0.2 16 0.2 4.8 0.2 1.7 0.1 2.45 0.2 5 0.5 (4.3) 4.5 0.7 4?r1) r-end (including the resin burr) (measured at the tip) (measured at the root) gate burr pin no. symbol function outa outa/ sensea m o m1 m2 m3 clock v bb gnd ref/sleep1 v dd reset cw/ccw sync flag *1 senseb outb/ outb phase a output phase a output phase a current sense 2 phase excitation state output monitor output excitation mode/sleep 2 setting input step clock input driver supply (motor supply) device gnd control current mode/sleep 1 setting input logic supply internal logic reset input normal/reverse control input pwm control signal input protection circuit monitor output *1 phase b current sense phase b current output phase b current output sla7075mr, mpr, mprt/7076mr, mpr, mprt/7077mr, mpr, mprt/7078mr, mpr, mprt product mass : approx.6g forming no. no.2151
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