STK672-010 查看數據表（PDF） - SANYO -> Panasonic

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STK672-010

Unipolar Fixed-Current Chopper (separate excitation) Type 1.7 A Output Current Stepping Motor Driver with Built-in 4-Phase Distribution Controller

SANYO -> Panasonic 

STK672-010

<4-Phase Distribution Control Logic Block Operation>

Fig. 3 Control Logic Circuit

The control logic IC built into the STK672-010 is a special-purpose IC developed to allow stepping motors to be

operated more simply than was possible previously.

Features

• One of four excitation types can be selected with the excitation mode setting (M1 and M2).

1. 4-phase 1 excitation

2. 4-phase 1-2 excitation

3. 4-phase 2 excitation

4. 4-phase W1-2 excitation

• Schmitt circuits are provided on all input pins (for a high noise margin).

• Inputs have 10 kΩ pull-up resistors built in so that they are CMOS and TTL input compatible. Thus the inputs can be

driven directly from I/O ports or special-purpose LSIs.

• The AA and BB phases of 4-phase control output at the 2-phase excitation set up the interval times.

• The minimum pulse width for the control logic is 25 µs. The logic operates on pulse falling edges.

The following timing charts show the logic in each excitation mode.

No. 4927-6/17

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