MTD1121F unipolar pwm stepper motor driver w1001 shindengen electric mfg.co.ltd stepper motor driver ic mtd series hsop28 features parameter output voltage output current logic supply logic input power dissipation * storage temperature maximum junction temperature unit v a v v w ?? ?? rating 80 1.2 0?`3.6 0?`vcc 3 -40?`150 150 symbol v ceo(sus) i out vcc v logic p d tstg tj *50.8?~50.8?~1mm 3 glass epoxy board(fr4), 250mm 2 cupper pattern MTD1121F top view out b n c n c out a gnd gnd in b in b vs b vref b cr b lg vcc cr a vref a vs a in a in a pg b out b rs b n c n c com n c n c n c rs a out a pg a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 in a or b l l h h l h l h in a or b out a or b out a or b off off on off off on off off ???@unipolar stepper motor driver ???@constant current contro l function?ifixed off time?j ???@logic supply voltage 3.3v ???@ttl, cmos compatible input ???@4-phase input (simultaneous on prevention function) ???@built-in flywheel diodes ?? surface mount package with heat sink(hsop28) ??absolute maxmum ratings / ta=25?? ??pin assignment ??truth table
w1001 MTD1121F shindengen electric mfg.co.ltd stepper motor driver ic ta=25??,vcc=3.3v unless otherwise specified parameter junction temperature logic supply load supply unit ?? v v recommendation -25?`120 3.13?`3.46 ?`27.5 symbol tj vcc vmm chopping frequency khz ?`27 f chop parameter output transistor saturation voltage output transistor leak current in"h" input voltage in"l" input voltage in"l" input current condition min typ max unit flywheel diode forward drop flywheel diode leak current flyback diode forward drop flyback diode leak current logic supply current in"h" input current vref input current vs input current chopping frequency oneshot off time vs maximum voltage symbol v ce(sat) i cer v ffw i rfw v ffb i rfb icc v in h v in l i in h i in l iref isence f chop t off vs(max) ic=0.9a v rfw =80v i ffb =0.9a v in =3.3v v in =0v vref=0v v cer =80v i ffw =0.9a v rfb =80v vs=0v rt=15k?? , ct=2200pf - - - - - - - 2.0 gnd - - - - - 12 - 1.1 - 1.2 - 1.3 - 30 - - - -10 -1 - 20 20 - 1.5 10 1.5 10 2 10 100 vcc 0.6 10 -50 -50 -50 - 27 0.7 v ?a v ?a v ?a ma v v ?a ?a ?a ?a khz ?s v ??electrical characteristics ??recommended operation conditions * 50.8?~50.8?~1mm 3 glass epoxy board(fr4),250mm 2 cupper pattern ??thermal resistance symbol ??ja * 41 ??/w rating unit
w1001 MTD1121F shindengen electric mfg.co.ltd stepper motor driver ic symbol recommended value unit rs 0.68 ?? cf 3300 pf rf 1.0 k?? vs b cpu or gate array cpu or gate array pg b - + one shot - + vcc out a out a com out b out b in b in b cr b vref b rs b pg a rs a vs a vref a in a in a cr a 1 cf rf rs rs cf rf ct rt rt ct vz vmm vcc toff = 0.69 ?~ct?~rt ct 3300 pf one shot rt 8.2 k?? vz vmm?~1.2?`1.5 v r1+r2 ??10 ???? lg tab r1 r2 vcc = vref rs ichop ??block diagram / typical application ??constant chopping current level ??one shot off?@time ??recommended component values
w1001 MTD1121F shindengen electric mfg.co.ltd stepper motor driver ic (unit : mm) ??outline drawing
w1001 MTD1121F shindengen electric mfg.co.ltd stepper motor driver ic ! ! although we are constantly making every effort to improve the qu ality and reliability of our products, there nevertheless remain s a certain probability that the semiconductor products may occasionally fai l or malfunction. please take careful precautions against produc t failures or malfunctions to avoid any injuries, fire accidents or social los s by implementing safety designs such as redundancy designs, des igns for fi re spread prevention, and designs for preventing malfunctions. our semiconductor products listed in this document are not desig ned or manufactured to be used in devices or systems requiring extremely high levels of quality and reliability, or the failure or malfunction of which may directly threaten human lives or ca use injury. in the cases where the products are to be used in devices or sys tems for special applications or devices or systems for speciali zed applications shown below, always make sure to consult us in adva nce. special applications transportation devices (automotive, marine, etc.), communication devices for core network, traffic signal devices, fire preventi on/anticrime devices, various safety devices, medical devices, etc. specialized applications nuclear power control systems, aircraft and aerospace devices, s ubmarine relay devices, and systems for preserving life, etc. even if it is not for a special or specialized application, when ic products are to be used for devices or systems that are desi red to last for a long period under continuous operation, please make sure to co nsult our sales representative in advance. ?? we reserve the right to make any changes to the contents of th is manual without prior notice in accordance with modifications to ic products. ?? details of specifications should be exchanged at the adoption of the ic products. ?? all information included in this manual is believed to be accu rate and reliable. however, our company takes no responsibility for any injury or damage incurred when using the ic products as described in this manual. neither do we take any responsibility for issues ar ising from infringement of patent or other rights caused by using thi s manual. ?? the provision of this manual does not guarantee the right to u se any third party's patent or other rights, or grant permission to use the patent or other rights of our company. ?? no part of this manual may be reproduced or copied without the specific written consent of shindengen electric mfg. co., ltd.
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