MAX17843 datasheet(9/131 Pages) MAXIM

9 / 131 page

MAX17843

12-Channel, High-Voltage Smart Sensor

Data-Acquisition Interface

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Table 1. System Blocks ........................................................................ 24

Table 2. Numeric Conventions................................................................... 27

Table 3. Data-Acquisition Processes.............................................................. 27

Table 4. Input Range .......................................................................... 28

Table 5. THRM Output ......................................................................... 30

Table 6. AINTIME............................................................................. 30

Table 7. Oversampling ......................................................................... 32

Table 8. AMENDFILT Bit ....................................................................... 33

Table 9. RDFILT Bit ........................................................................... 34

Table 10. Acquisition Time ...................................................................... 39

Table 11. Acquisition Time Examples (with AINCFG[5:0] = 00h)......................................... 39

Table 12. Measurement Alerts ................................................................... 40

Table 13. Maximum Allowed Balancing Current per Switch ............................................ 42

Table 14. Cell-Balancing Watchdog Configuration ................................................... 42

Table 15. Emergency Discharge Mode ............................................................ 43

Table 16. Low-Voltage Regulator ................................................................. 44

Table 17. Low-Voltage Regulator Diagnostic ........................................................ 44

Table 18. HV Charge-Pump Diagnostics ........................................................... 45

Table 19. Oscillator Diagnostics.................................................................. 46

Table 20. Shutdown Timing ..................................................................... 48

Table 21. UART RX Modes ..................................................................... 52

Table 22. Data Character....................................................................... 55

Table 23. Battery-Management UART Protocol (Data Types)........................................... 57

Table 24. Battery-Management UART Protocol (Command Packet Types) ................................ 57

Table 25. Command-Byte Encoding .............................................................. 57

Table 26. Data-Check Byte ..................................................................... 58

Table 27. HELLOALL Sequencing (z = Total Number of Devices)........................................ 59

Table 28. WRITEALL Sequencing (Unchanged by Daisy-Chain) ........................................ 60

Table 29. WRITEDEVICE Sequencing (Unchanged by Daisy-Chain)..................................... 60

Table 30. READALL Command Sequencing (z = Number of Devices).................................... 61

Table 31. READDEVICE Sequencing ............................................................. 62

Table 32. READBLOCK Sequencing for Block Size = 1 ............................................... 63

Table 33. READBLOCK Sequencing for Block Size = 2 ............................................... 63

Table 34. Summary of Built-In Diagnostics ......................................................... 64

Table 35. BALSW Short Diagnostic Autoconfiguration ................................................ 71

LIST OF TABLES

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