M54679SP 데이터 시트보기 (PDF) - Renesas Electronics

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M54679SP

2-Phase Stepper Motor Driver

Renesas Electronics 

M54679SP

Output circuit

Symbol

Vsat

Ileak

VF(H)

VF(L)

tdon

tdoff

tdstby

tdph

Parameter

Output saturation voltage

Output leakage current

VF of flywheel diode (top)

VF of flywheel diode (bottom)

Turn ON delay of output

Turn OFF delay of output

OFF delay of standby

Phase delay

(Ta = 25°C, Vcc = 5 V, VM = 24 V unless otherwise noted.)

Conditions

Limits

Unit

Min Typ Max

Top and Bottom at load current 0.6 A

—

1.6 2.2 V

–100 —

+100 µA

If = 0.6A

—

1.7 2.3 V

If = 0.6A

—

1.1 1.5 V

Time until output become ON since

Fref = 2.5 V → 0.5 V

—

0.5 2.0 µS

Time until output become OFF since

Vref < S

—

2.0 3.5 µS

Time until output become ON since

Stby = L → H

—

3.0 10.0 µS

Time until output become ON since

Phase = L → H

—

3.0 10.0 µS

Function Explanation

(1) Ph inputs make a decision the output function. (Ph input of phase 4)

Ph*A

Ph*B

Out*A

Out*B

L

L

OFF

OFF

H

L

H

L

L

H

L

H

H

H

OFF

OFF

*: 1 or 2

Note: The outputs shut off under Ph*A and Ph*B High condition at the same time.

(2) Output current and terminal of output current setting.

I0 I1 Output current ratio

L

L

100%

H

L

70%

L

H

31%

H H 0%

Current sensing comparators

threshold voltage (Vref = 5 V)

500 mV

350 mV

155 mV

—

Rev.1.0, Sep.17.2003, page 5 of 11

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