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INA237 bảng dữ liệu(HTML) 29 Page - Texas Instruments |
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29 / 48 page  7.6.1.10 Shunt Overvoltage Threshold (SOVL) Register (Address = Ch) [reset = 7FFFh] If negative values are entered in this register, then a shunt voltage measurement of 0 V will trip this alarm. When using negative values for the shunt under and overvoltage thresholds be aware that the over voltage threshold must be set to the larger (that is, less negative) of the two values. The SOVL register is shown in Table 7-14. Return to the Summary Table. Table 7-14. SOVL Register Field Descriptions Bit Field Type Reset Description 15-0 SOVL R/W 7FFFh Sets the threshold for comparison of the value to detect Shunt Overvoltage (overcurrent protection). Two's complement value. Conversion Factor: 5 µV/LSB when ADCRANGE = 0 1.25 µV/LSB when ADCRANGE = 1. 7.6.1.11 Shunt Undervoltage Threshold (SUVL) Register (Address = Dh) [reset = 8000h] The SUVL register is shown in Table 7-15. Return to the Summary Table. Table 7-15. SUVL Register Field Descriptions Bit Field Type Reset Description 15-0 SUVL R/W 8000h Sets the threshold for comparison of the value to detect Shunt Undervoltage (undercurrent protection). Two's complement value. Conversion Factor: 5 µV/LSB when ADCRANGE = 0 1.25 µV/LSB when ADCRANGE = 1. 7.6.1.12 Bus Overvoltage Threshold (BOVL) Register (Address = Eh) [reset = 7FFFh] The BOVL register is shown in Table 7-16. Return to the Summary Table. Table 7-16. BOVL Register Field Descriptions Bit Field Type Reset Description 15 Reserved R 0h Reserved. Always reads 0. 14-0 BOVL R/W 7FFFh Sets the threshold for comparison of the value to detect Bus Overvoltage (overvoltage protection). Unsigned representation, positive value only. Conversion factor: 3.125 mV/LSB. 7.6.1.13 Bus Undervoltage Threshold (BUVL) Register (Address = Fh) [reset = 0h] The BUVL register is shown in Table 7-17. Return to the Summary Table. Table 7-17. BUVL Register Field Descriptions Bit Field Type Reset Description 15 Reserved R 0h Reserved. Always reads 0. 14-0 BUVL R/W 0h Sets the threshold for comparison of the value to detect Bus Undervoltage (undervoltage protection). Unsigned representation, positive value only. Conversion factor: 3.125 mV/LSB. www.ti.com INA237-Q1 SBOSA27A – JUNE 2020 – REVISED JUNE 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 29 Product Folder Links: INA237-Q1 |
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