tb6504f TOSHIBA Semiconductor CORPORATION, tb6504f Datasheet - Page 10

• Manufacturer Part Number: tb6504f
• Description: Pwm Chopper Type Bipolar Stepping Motor Driver
• Manufacturer: TOSHIBA Semiconductor CORPORATION

ENABLE AND RESET FUNCTION AND MO SIGNAL
Internal logic functions are proceeded by CK signal without regard to ENABLE signal.
Therefore, Output Current is initiated from the proceeded timing point of internal logic circuit after
release of disable mode.
Fig.1 shows the ENABLE functions, when the system is selected in 1−2 Phase drive mode.
As RESET is low, the decoder is initialized and MO is low.
After RESET is high, the motion is resumed from next clock as shown in Fig.2.
ENABLE Signal disables only Output Signal.
MO (Monitor Output) Signals is used as rotation and initial signal for stable rotation checking.
Fig.1 1−2 Phase drive mode
Fig.2 1−2 Phase drive mode
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(M1 : H, M2 : L)
(M1 : H, M2 : L)
TB6504F/FG
2006-3-6