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LTC2972

2972fa

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Table 2. MFR_EIN Data Block Contents

DATA

BYTE*

DESCRIPTION

Energy_value [7:0]

Energy Value in mJ. This is the accumulated energy since Mfr_ein_config or Mfr_clear_

energy was last written.

Energy_value [15:8]

Energy_value [23:16]

Energy_value [31:24]

Energy_value [39:32]

Energy_value [47:40]

Energy_time [7:0]

Energy Time in ms. This is the elapsed time since Mfr_ein_config or Mfr_clear_energy

was last written.

Energy_time [15:8]

Energy_time [23:16]

Energy_time [31:24]

Energy_time [39:32]

Energy_time [47:40]

MFR_EIN_CONFIG

This command configures energy and input current related parameters.

MFR_EIN_CONFIG Data Contents

BIT(S) SYMBOL

OPERATION

b[7:3] Mfr_ein_config_reserved

Don’t care. Always returns 0.

b[2]

Mfr_ein_config_hd

Optimize ADC polling sequence for higher definition input energy measurement.

0: Standard ADC polling sequence

1: Read_vin and Read_iin measurements are interleaved between every other ADC measurement.

b[1:0] Mfr_ein_config_iin_range

Input sense amplifier range setting.

0: High Range

1: Medium Range

2: Low Range

3: Reserved

The range sets the Full-Scale Input Voltage Range (FS_IIN). Lower range settings have lower input

referred noise. See Measuring Input Current in the Applications section for additional details.

PMBus COMMAND DESCRIPTION

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