STK672-400C-E 查看數據表（PDF） - SANYO -> Panasonic

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STK672-400C-E

Thick-Film Hybrid IC 2-phase Stepping Motor Driver

SANYO -> Panasonic 

STK672-400C-E

[Setting the motor current]

The motor current is set by the hybrid IC's pin 19V, Vref. The formula shows below gives the relationship between IOH

and Vref.

Vref = VDD-(IOH × Rs × K) ···························································································································· (1)

K: 9.33 (voltage divider ratio)

Rs: 0.152Ω (hybrid IC internal current detection resistance: precision = ±3%)

IOH

IOL

Ioave

0A

Model of the Motor Phase Current Flowing into the Hybrid IC

Function Table

M2

M1

M3

1

0

CWB pin

CWB

0

0

2 phase

excitation

1-2 phase

excitation

Forward

0

0

1

1-2 phase

excitation

W1-2 phase

excitation

Reverse

1

1

0

W1-2 phase

excitation

2W1-2 phase

excitation

1

1

2W1-2 phase

excitation

4W1-2 phase

excitation

Phase switching clock

edge timing

CLK rising edge

Both CLK edges

ENABLE and RESET pins

ENABLE

RESET

Motor current cut: Low

Active Low

No.A2136-6/19

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