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L9963E 数据表(PDF) 83 Page - STMicroelectronics |
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L9963E 数据表(HTML) 83 Page - STMicroelectronics |
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83 / 184 page  Category Diagnostic name Condition Available in Availability type Actions SPI related fields name SPI related fields descriptio n BIST EEPROM Checksum Failure An unwanted change in EEPROM data occurred Trimming, Normal Upon EEPROM Download •Set Latch •Stop balance on whole stack EEPROM_ CRC_ERR _CAL_FF Fault Latch Y E S EEPROM_ CRC_ERR MSK_CAL_ RAM = 1 EEPROM_ CRC_ERR MSK_CAL_ FF = 1 BIST RAM Checksum Failure An unwanted change in RAM data occurred Normal, Cyclic Wakeup Always ON •Set Latch •Stop balance on whole stack RAM_CRC _ERR Fault Latch Y E S RAM_CRC _ERRMSK = 1 BIST AGND and GNDREF Loss Loss of both AGND and GNDREF in respect to DGND, lasting more than TGND_LO SS_FILTE R Normal, Cyclic Wakeup Always ON •Set Latch •Raise FAULTL loss_agnd Fault Latch N O BIST DGND / CGND Loss A ground shift among AGND, and DGND, or AGND and CGND, lasts more than TGND_LO SS_FILTE R Normal, Cyclic Wakeup Always ON •Set Latch •Raise FAULTL loss_dgnd Fault Latch N O loss_cgnd Fault Latch 4.12 Voltage conversion routine L9963E implements a flexible voltage conversion routine, whose main goals are: • Providing on-demand information about the cells voltage, the stack voltage and the cell temperature; • Providing on-demand diagnostic information about the device functionality; • Periodically monitoring the cells and the stack status, along with the device functionality; • Limit the power consumption by activating only the necessary resources; • Automatically validate any eventual failure detected during the routine execution. The following parameters play a key role in the definition of the voltage routine behavior: • TCYCLEADC refers to the duration of a voltage conversion step. It can be programmed via the ADC_FILTER_SOC (for On-Demand Conversions in Normalst ate) and ADC_FILTER_CYCLE (for cyclic operation in both Normal and Cyclic Wakeup states) bit fields. Available values are listed in Table 38: – TCYCLEADC_XXX refers to a fixed option of TCYCLEADC, thus implying a fixed duration for the voltage conversion; L9963E Voltage conversion routine DS13636 - Rev 12 page 83/184 |
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