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L9908 データシート(PDF) 36 Page - STMicroelectronics |
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L9908 データシート(HTML) 36 Page - STMicroelectronics |
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36 / 153 page ![]() Figure 15. Shutdown fault - Transient fault timing diagram Figure 16. Shutdown fault - Permanent fault timing diagram Table 30. EN_BR minimum t_off time Symbol Parameter Min Typ Max Unit Notes EN_BR_tclear Minimum time interval to assert low value on EN_BR 2.5 - - μs Not subject to production test Note: All parameters are guaranteed, and tested, in the voltage ranges specified above in Table 5 unless otherwise specified. Where not specified the parametrical operating range equals the functional operating range. Note: • In case of BIST_STATUS=11 (BIST check failure) the device sent in SAFE_OFF Mode, re-engage procedure can be performed only by issuing a SW_REST command. • In case of WDT_OVF_fail = 1 or WDT_DATA_fail = 1 (WDT failure) the device sent in SAFE_OFF Mode, re-engage procedure can be performed only by issuing a WDT_RST or a SW_REST command. 5.6.2.2 Auto-retry faults When an auto-retry fault is detected the related SPI flag is set to ‘1’, the IC ERR bits in SPI FRAME are set to ‘11’ and the FS_FLAG is asserted low. L9908 Fault Handling Management (FHM) DS13546 - Rev 3 page 36/153 |
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