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TB6575FNG Datasheet(PDF) 7 Page - Toshiba Semiconductor |
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TB6575FNG Datasheet(HTML) 7 Page - Toshiba Semiconductor |
7 / 14 page TB6575FNG 2006-3-6 7 8. Lead angle control The motor runs with a lead angle of 0° in forced commutation mode at startup. After switching to natural commutation, the lead angle automatically changes to the value set by the LA pin. 9. Overlap commutation When SEL_LAP = high, the TB6575FNG is configured to allow for 120° commutation. When SEL_LAP = low, it is configured to allow for overlap commutation. In overlap commutation, there is an overlap period during which both the outgoing transistor and incoming transistor are conducting (as shown in the shaded areas). This period varies according to the lead angle. (3) Lead angle of 15° OUT_WN OUT_VN OUT_WP Back-EMF PWM signal (1) Lead angle of 0° OUT_UP OUT_UN OUT_VP OUT_VN OUT_WP OUT_WN (2) Lead angle of 7.5° OUT_UP OUT_UN OUT_VP OUT_UP OUT_UN OUT_VP OUT_VN OUT_WP OUT_WN UV W 30° 22.5° 15° *OS = High (2) Lead angle of 15° OUT_WN OUT_VN OUT_WP Back-EMF PWM signal (1) Lead angle of 7.5° OUT_UP OUT_UN OUT_VP OUT_UP OUT_UN OUT_VP OUT_VN OUT_WP OUT_WN UV W *OS = High |
Similar Part No. - TB6575FNG_06 |
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Similar Description - TB6575FNG_06 |
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