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L9963E 数据表(PDF) 96 Page - STMicroelectronics |
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L9963E 数据表(HTML) 96 Page - STMicroelectronics |
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96 / 184 page  • To specify its periodicity in Cyclic Conversions, the NCYCLE_CELL_TERM field must be programmed (refer to Section 4.12.4 Operations periodicity). During this step, the cell terminal open diagnostic will be performed on all enabled cells. Table 64. Operations performed during cell terminal diagnostics step Operation Skip condition C0 Open VCELL1_EN = 0 C1 Open VCELL1_EN = 0 C2 Open VCELL2_EN = 0 C3 Open VCELL3_EN = 0 C4 Open VCELL4_EN = 0 C5 Open VCELL5_EN = 0 C6 Open VCELL6_EN = 0 C7 Open VCELL7_EN = 0 C8 Open VCELL8_EN = 0 C9 Open VCELL9_EN = 0 C10 Open VCELL10_EN = 0 C11 Open VCELL11_EN = 0 C12 Open VCELL12_EN = 0 C13 Open VCELL13_EN = 0 C14 Open VCELL14_EN = 0 The step duration is not fixed, since it lasts 2*(TCxOPEN_SET + TCYCLEADC), thus depending on the value programmed in the ADC_FILTER_SOC or ADC_FILTER_CYCLE fields (refer to Table 38). The following failure can be flagged during cell terminal diagnostics step execution, thus causing Configuration Override: • CELLX_OPEN: for all enabled cells, if the voltage drop on the path in series to the Cx pin becomes higher than VCxOPEN. 4.12.3.6 Balance terminal diagnostics Balance terminal diagnostics is the sixth step of the voltage conversion routine. It is optional: • To include it in On-Demand Conversions, the BAL_TERM_CONV bit must be set along with the SOC in the same SPI frame. • To specify its periodicity in Cyclic Conversions, the NCYCLE_BAL_TERM field must be programmed (refer to Section 4.12.4 Operations periodicity). During this step, the balance terminal open diagnostic will be performed on all the enabled cells. Table 65. Operations performed during balance terminal diagnostics step Operation Skip condition B2_1 – S1 Open / Short VCELL1_EN = 0 S2 – B2_1 Open / Short VCELL2_EN = 0 B4_3 – S3 Open / Short VCELL3_EN = 0 S4 – B4_3 Open / Short VCELL4_EN = 0 B6_5 – S5 Open / Short VCELL5_EN = 0 S6 – B6_5 Open / Short VCELL6_EN = 0 L9963E Voltage conversion routine DS13636 - Rev 12 page 96/184 |
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