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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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ADBMS2950BCCSZ Arkusz danych(PDF) 36 Page - Analog Devices |
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ADBMS2950BCCSZ Arkusz danych(HTML) 36 Page - Analog Devices |
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36 / 97 page  ADBMS2950B Data Sheet Rev. 0 | Page 36 of 97 BYTE BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 8 VB2[7:0] 9 VB2[15:8] 10 OC1R 11 OC2R 12 OC3R 13 GPO6H GPO5H GPO4H GPO3H GPO2H GPO1H GPO6L GPO5L 14 RESERVED VDRUV OCMM OC3L OCAGD OCAL OC1L 15 RESERVED VDDUV NOCLK REFFLT OCBGD OCBL OC2L 16 I2CNT[2:0] I1CNT[10:6] 17 I1CNT[5:0] I1PHA[1:0] 18 VREGOV VREGUV VDIGOV VDIGUV SED1 MED1 SED2 MED2 19 VDEL VDE 0 SPIFLT RESET THSD1 TMODE OSCFLT Note: 1 The thermal shutdown indicator bit THSD is not cleared by the SRST command, but only after a power-on-reset or through the CLRFLAG command. Table 47. RDALLA Return Values BYTE BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 0 I1ACC[7:0] 1 I1ACC[15:8] 2 I1ACC[23:16] 3 I2ACC[7:0] 4 I2ACC[15:8] 5 I2ACC[23:16] 6 VB1ACC[7:0] 7 VB1ACC[15:8] 8 VB1ACC[23:16] 9 VB2ACC[7:0] 10 VB2ACC[15:8] 11 VB2ACC[23:16] 12 GPO6H GPO5H GPO4H GPO3H GPO2H GPO1H GPO6L GPO5L 13 GPO4L GPO3L GPO2L GPO1L GPIO4L GPIO3L GPIO2L GPIO1L 14 RESERVED VDRUV OCMM OC3L OCAGD OCAL OC1L 15 RESERVED VDDUV NOCLK REFFLT OCBGD OCBL OC2L 16 I2CNT[2:0] I1CNT[10:6] 17 I1CNT[5:0] I1PHA[1:0] 18 VREGOV VREGUV VDIGOV VDIGUV SED1 MED1 SED2 MED2 19 VDEL VDE 0 SPIFLT RESET THSD1 TMODE OSCFLT Note: 1 The thermal shutdown indicator bit THSD is not cleared by the SRST command, but only after a power-on-reset or through the CLRFLAG command. Voltage and Auxiliary Measurements Voltage Measurements The ADBMS2950B devices can measure 10 voltage inputs, preceding multiplexers, and buffers through V1ADC and V2ADC. Any pin can be measured either vs. SGND or VREF1P25. The inputs V1 and V2 can also be measured vs. V3 or V4. The inputs V1 to V6 are measured redundantly through V1ADC and V2ADC, whereas V7 and V8 are measured by V1ADC only. V9 and V10 are measured by V2ADC only. Both ADCs always operate synchronously commanded through ADV. This allows measurement of redundant sensors like NTCs connected to the input pin pairs V7, V9 or V8, V10 synchronously through the redundant VxADCs for minimum sensitivity to noise when comparing the results in the host controller. Other application use cases for the inputs V1 to V10 include contactor diagnostic, link voltage measurement, or battery to chassis-ground isolation resistance measurement. When the ADBMS2950B receives a new ADV command during an ongoing conversion, the VADCs are stopped and restarted. The corresponding result registers are not reset upon reception of a new ADV command but are updated at the end of each individual channel. For multi-measurements, this happens in the order of the channels in the table given above. Settings of the configuration registers that affect the VxADC measurements (VSx, SOAK) are captured when receiving the ADV command. Any change to those configurations does not affect an ongoing conversion, but only the next conversion triggered through ADV. |
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