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INA3221 Datasheet(PDF) 19 Page - Texas Instruments |
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INA3221 Datasheet(HTML) 19 Page - Texas Instruments |
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19 / 40 page  INA3221 www.ti.com SBOS576A – MAY 2012 – REVISED JUNE 2013 REGISTER INFORMATION The INA3221 uses a bank of registers for holding configuration settings, measurement results, minimum and maximum limits, and status information. Table 1 summarizes the INA3221 registers; refer to Figure 1 for an illustration of the registers. Table 1. Summary of Register Set POINTER POWER-ON RESET ADDRESS (Hex) REGISTER NAME DESCRIPTION BINARY HEX TYPE(1) All-register reset, shunt and bus voltage ADC conversion times and 0 Configuration Register 01110001 00100111 7127 R/W averaging, operating mode. 1 Channel 1 Shunt Voltage Averaged shunt voltage value. 00000000 00000000 0000 R 2 Channel 1 Bus Voltage Averaged bus voltage value. 00000000 00000000 0000 R 3 Channel 2 Shunt Voltage Averaged shunt voltage value. 00000000 00000000 0000 R 4 Channel 2 Bus Voltage Averaged bus voltage value. 00000000 00000000 0000 R 5 Channel 3 Shunt Voltage Averaged shunt voltage value. 00000000 00000000 0000 R 6 Channel 3 Bus Voltage Averaged bus voltage value. 00000000 00000000 0000 R Contains limit value to compare each conversion value to 7 Channel 1 Critical Limit 01111111 11111000 7FF8 R/W determine if the corresponding limit has been exceeded. Contains limit value to compare to averaged measurement to 8 Channel 1 Warning Limit 01111111 11111000 7FF8 R/W determine if the corresponding limit has been exceeded. Contains limit value to compare each conversion value to 9 Channel 2 Critical Limit 01111111 11111000 7FF8 R/W determine if the corresponding limit has been exceeded. Contains limit value to compare to averaged measurement to A Channel 2 Warning Limit 01111111 11111000 7FF8 R/W determine if the corresponding limit has been exceeded. Contains limit value to compare each conversion value to B Channel 3 Critical Limit 01111111 11111000 7FF8 R/W determine if the corresponding limit has been exceeded. Contains limit value to compare to averaged measurement to C Channel 3 Warning Limit 01111111 11111000 7FF8 R/W determine if the corresponding limit has been exceeded. Contains the summed value of the each of the selected shunt D Shunt Voltage Sum 00000000 00000000 0000 R voltage conversions. Contains limit value to compare to the Shunt Voltage Sum register E Shunt Voltage Sum Limit 01111111 11111110 7FFE R/W to determine if the corresponding limit has been exceeded. Alert configuration, alert status indication, summation control and F Mask/Enable 00000000 00000010 0002 R/W status. Contains limit value to compare all bus voltage conversions to 10 Power Valid Upper Limit 00100111 00010000 2710 R/W determine if the Power Valid level has been reached. Contains limit value to compare all bus voltage conversions to 11 Power Valid Lower Limit determine if the any voltage rail has dropped below the Power 00100011 00101000 2328 R/W Valid range. FE Manufacturer ID Contains unique manufacturer identification number. 01010100 01001001 5449 R FF Die ID Contains unique die identification number. 00110010 00100000 3220 R (1) Type: R = read-only, R/W = read/write. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 19 Product Folder Links: INA3221 |
Similar Part No. - INA3221_15 |
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Similar Description - INA3221_15 |
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