Seiko 201 Dokumentacja Pobierz pdf (Strona 15)

(3) Motor stop signal Stop the motor drive signal within 1 ms after detecting a home

switch “OFF” (100 to 250 μs) signal, and input a motor stop

signal of at least 25 ms.

Home switch signal

Motor drive signal

Motor stop signal

1 ms max.

25 ms min.

100-250

OFF

* See Section 2.5, Home Switch, for home switch signal.

Figure 2-2 Motor Drive Signal Timing

* When using this circuit, a motor stop signal is not required.

Vcc

270Ω

M-

M+

DTC123E

22kΩ

2SD999

2SD1699

Figure 2-3 Sample Motor Drive Circuit

2-7

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Seiko 201 Dokumentacja Strona 15