M54678FP Mitsubishi Electronics America, Inc., M54678FP Datasheet
M54678FP
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M54678FP Summary of contents
Page 1
... Thermal protection circuit Flywheel diode APPLICATION Printers, PPC, facsimile FUNCTION The M54678FP is a integrated circuit which can drive two phase stepper motor. The output current direction is determined by phase terminal function, and the output current level is controlled by Vref terminals voltage. BLOCK DIAGRAM ...
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... Min. Typ. Max. 4.5 5.0 5.5 10 — — 800 — — 2 — — — — 50 — 160 — M54678FP Functions Motor on “H” input Enable Ratings -0.3 – 37 1.0 -0.3 – 7 -0.3 – -0.3 – 1.5 2.0 62.5 150 -20 – 75 -40 – 125 Unit ...
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... Fref terminal 390pF Iout = -0.1mA – +1mA =5V, VM=24V unless otherwise noted.) CC Test condition Sensing resistor not included 0.75A Time until output on after Fref 2.5V Time until output off after S < Vref MITSUBISHI <CONTROL / DRIVER IC> M54678FP 2-PHASE STEPPER MOTOR DRIVER Limits Min. Typ. Max ...
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... Thus, please consider this current when you set up output Z Z current *If Vcc, Tj and manufacturing dispersion are considered, dispersion of Ib will vary maximum 5mA (minimum = 5mA, maximum = 15mA) MITSUBISHI <CONTROL / DRIVER IC> M54678FP 2-PHASE STEPPER MOTOR DRIVER VM ON OFF Iout MB ON OFF RS Iout = IRS - Ib ...
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... GND GND N.C N Vcc N.C 23 Ph1 Ph2 15 22 En1 En2 Vref1 Vref2 20 18 Regout Fref 19 MITSUBISHI <CONTROL / DRIVER IC> M54678FP 2-PHASE STEPPER MOTOR DRIVER 150 Rrs2 An example of the setting Rrs1, Rrs2 = 0.5 – 1.0 Cfref = 390pF input input Cfref ...