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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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L9680 데이터시트(PDF) 219 Page - STMicroelectronics |
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L9680 데이터시트(HTML) 219 Page - STMicroelectronics |
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219 / 286 page  DS11615 Rev 7 219/286 L9680 System voltage diagnostics 285 14 System voltage diagnostics L9680 has an integrated dedicated circuitry to provide diagnostic feedback and processing of several inputs. These inputs are addressed with an internal analog multiplexer and made available through the SPI digital interface with the Diagnostic Data commands. In order to avoid saturation of high voltage internal signals, an internal voltage divider is used. Figure 69. ADC MUX The diagnostics circuitry is activated by four SPI Diagnostics Control commands (DIAGCTRLx); each of them can address all the available nodes to be monitored, except for what mentioned in Table 18. DIAGCTRLx SPI command bit fields are structured in the following way: DIAGCTRL_A (ADDRESS HEX 3A) 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MOSI x x x x x x x x x ADCREQ_A[6:0] MISO NEWDATA_A 0 0 ADCREQ_A[6:0] ADCRES_A[9:0] GAPG2104161155PS |
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