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INA745AIRELR 数据表(PDF) 30 Page - Texas Instruments |
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INA745AIRELR 数据表(HTML) 30 Page - Texas Instruments |
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30 / 50 page  7.1.10 Current Over-Limit Threshold (COL) Register (Address = Ch) [reset = 7FFFh] If negative values are entered in this register, then a current measurement of 0A trips this alarm. When using negative values for the undercurrent and overcurrent thresholds be aware that the overcurrent threshold must be set to the larger (that is, less negative) of the two values. The COL register is shown in Table 7-12. Return to the Summary Table. Table 7-12. COL Register Field Descriptions Bit Field Type Reset Description 15-0 COL R/W 7FFFh Sets the threshold for comparison of the value to detect over current condition (overcurrent protection). Two's complement value. Conversion factor: 1.2mA/LSB 7.1.11 Current Under-Limit Threshold (CUL) Register (Address = Dh) [reset = 8000h] The CUL register is shown in Table 7-13. Return to the Summary Table. Table 7-13. CUL Register Field Descriptions Bit Field Type Reset Description 15-0 CUL R/W 8000h Sets the threshold for comparison of the value to detect undercurrent condition. Two's complement value. Conversion factor: 1.2mA/LSB 7.1.12 Bus Overvoltage Threshold (BOVL) Register (Address = Eh) [reset = 7FFFh] The BOVL register is shown in Table 7-14. Return to the Summary Table. Table 7-14. 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: 3.125mV/LSB. 7.1.13 Bus Undervoltage Threshold (BUVL) Register (Address = Fh) [reset = 0h] The BUVL register is shown in Table 7-15. Return to the Summary Table. Table 7-15. 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: 3.125mV/LSB. INA745A, INA745B SBOSAC3B – JULY 2023 – REVISED AUGUST 2025 www.ti.com 30 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated Product Folder Links: INA745A INA745B |
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