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<In the case of OCC pin; "H" 2 (Example: Low-side)>
Figure 7.8-1 (2) Timing chart 2 (OCC = High) of current limitation detection operation at the time
Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
7.8.2. In the case of OCC; L
When the motor drive output is short to power supply or short to GND, tBLANK2 = 1μs (Tovc) is
•
set to the threshold of over-current (Iovc), and the prevention time of the malfunction is set by
noise. Then if a current flows longer than the setting time, the output is in the OFF state.
For returning from OFF state, each function restarts according to input instructions from MCU.
•
Each function re-starts with one pulse signal of EN falling or one pulse signal of ENB rising.
When tBLANK2 operates, tBLANK1 is canceled.
•
<In the case of OCC pin; "L" (Example: Low-side)>
Figure 7.8-2 Timing chart 2 (OCC = Low) of current limitation detection operation at the time of
Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
of short to power supply, short to GND, and load short
short to power supply, short to GND, and load short
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TB9051FTG
Ver.1.1 2019-03-14
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