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TB9051FTG
7.6.3. VCC high voltage detection circuit
When the VCC voltage rises and becomes more than the high detection voltage, OUT1/2 becomes
"OFF"(High-Z state).
Moreover, in order to prevent chattering, a filter (TVCC_up:2.5ms (typ.)) is built in.
Even if the motor drive output is in the "OFF" (High-Z) state by a VCC high voltage detection, a logic
circuit can operate.
Figure 7.6.3-1 VCC high voltage detection circuit
Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
Figure 7.6.3-2 Timing chart of VCC high voltage detection
Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
Note: The VCC high voltage detection function is not a function which clamps power supply voltage. The
protection is required externally so that it may not become more than absolute maximum ratings.
Ver.1.1 2019-03-14
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