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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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L8229 Datasheet(PDF) 36 Page - STMicroelectronics |
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L8229 Datasheet(HTML) 36 Page - STMicroelectronics |
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36 / 42 page  Obsolete Product(s) - Obsolete Product(s) SPI programming L8229 36/42 2) - PASSIVE SYNC recirculation could be divided in following cases: 2a) The reverse current (if present) does not exceed the regulated value (Note: this case is identical to ACTIVE SYNC case 1a) 2b) The reverse current exceeds the regulated value during FAST recirculation. (Note: if the current exceed the regulated value during SLOW recirculation, no action is taken and the behaviour will be that of case 2a) 3) - SYNC OFF recirculation has only one case: HA on HB off LA off LB on Current increasing in the load. All off Anticross state (fast recirculation through LA and HB body diodes). HA off HB on LA on LB off FAST SYNC recirculation through DMOS till end of fast decay time. HA off HB off LA on LB off Anticross state (fast recirculation through LA DMOS and HB body diode). HA off HB off LA on LB on SLOW SYNC recirculation till end of Toff. HA off HB off LA off LB on Anticross state (slow recirculation through LA body diode and LB DMOS). HA on HB off LA off LB on Current increasing in the load. HA on HB off LA off LB on Current increasing in the load. All off Anticross state (fast recirculation through LA and HB body diodes). HA off HB on LA on LB off FAST SYNC recirculation through DMOS till reverse current reaches the regulated value). All off Hi-Z state till end of Toff. HA on HB off LA off LB on Current increasing in the load. HA on HB off LA off LB on Current increasing in the load. All off Fast recirculation through LA and HB body diodes till end of fast decay time. HA off HB off LA off LB on Slow recirculation through LA body diode and LB DMOS till end of Toff. HA on HB off LA off LB on Current increasing in the load. |
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