M54679FP datasheet(2/9 Pages) MITSUBISHI

2 / 9 page

2-PHASE STEPPER MOTOR DRIVER

M54679FP

MITSUBISHI <CONTROL / DRIVER IC>

PRELIMINARY

Notice: This is not a final specification.

Some parametric limits are subject to change.

ABSOLUTE MAXIMUM RATINGS (Ta = 25

°C unless otherwise noted.)

Symbol

Conditions

Units

Parameter

Motor supply voltage

-0.3 – 37

PIN FUNCTION

Iout

VCC

Vlogic

Vanalog

Topr

Ratings

Output current

Per one phase

±0.8

Power supply

-0.3 – VCC

Analog input voltage

Under board mount condition.

(see next page)

1.5

°C/W

Power dissipation

2.7

°C

Thermal derating

°C

Junction temperature

°C

Operating temperature

150

-20 – 75

Rs1, Rs2

Ph1A, Ph1B, Ph2A, Ph2B, I0, I1, Stby

Vref, S1, S2

Tstg

Storage temperature

Logic input voltage

-40 – 125

Terminal

Function

Symbol

Motor Supply Voltage

Output terminals

Current sensor

Power supply

Phase input

Output current change

Standby input

Sense inputs

Vref input

Power supply for motor drive.

Motor drive output terminals.

Output current sensing resistor (Rs) connection terminals.

Control circuit power supply.

Output current direction switch terminals.

Output current change (100%, 70%, 33%, 0%) terminals.

Standby input (L: Standby, H or open: motor function) terminal.

Input voltage terminal of comparators.

Reference voltage due to setting output current.

Vm1, Vm2

Vref

S1, S2

Stby

I0(1), I1(1), I0(2), I1(2)

Ph1A, Ph1B, Ph2A, Ph2B

VCC

Rs1, Rs2

Out1A, Out1B, Out2A, Out2B

VRs

Output current sensing

-0.3 – 7.0

-0.3 – VCC

Regout

Fref

P.GND

Output of voltage stabilizer

A capacitor for oscillator

Power GND

Output of voltage stabilizer (3.5V).

A capacitor due to PWM carrier frequency.

The GND terminal of bottom side flywheel diodes.

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