INA781 datasheet(22/40 Pages) TI1

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7.6.1.7 Energy Result (ENERGY) Register (Address = 9h) [reset = 0h]

The ENERGY register is shown in Table 7-11.

Return to the Summary Table.

Table 7-11. ENERGY Register Field Descriptions

Bit

Field

Type

Reset

Description

39-0

ENERGY

Calculated energy output.

Output value is in Joules.Unsigned representation. Positive value.

Conversion factor: 7.68 mJ/LSB.

7.6.1.8 Charge Result (CHARGE) Register (Address = Ah) [reset = 0h]

The CHARGE register is shown in Table 7-12.

Return to the Summary Table.

Table 7-12. CHARGE Register Field Descriptions

Bit

Field

Type

Reset

Description

39-0

CHARGE

Calculated charge output. Output value is in Coulombs.Two's

complement value.

Conversion factor: 150 μC/LSB.

7.6.1.9 Diagnostic Flags and Alert (DIAG_ALRT) Register (Address = Bh) [reset = 0001h]

The DIAG_ALRT register is shown in Table 7-13.

Return to the Summary Table.

Table 7-13. DIAG_ALRT Register Field Descriptions

Bit

Field

Type

Reset

Description

ALATCH

R/W

When the Alert Latch Enable bit is set to Transparent mode, the

Alert pin and Flag bit reset to the idle state when the fault has been

cleared.

When the Alert Latch Enable bit is set to Latch mode, the Alert pin

and Alert Flag bit remain active following a fault until the DIAG_ALRT

0h = Transparent

1h = Latched

CNVR

R/W

Setting this bit high configures the Alert pin to be asserted when

the Conversion Ready Flag (bit 1) is asserted, indicating that a

conversion cycle has completed.

0h = Disables conversion ready flag on ALERT pin

1h = Enables conversion ready flag on ALERT pin

SLOWALERT

R/W

When enabled, ALERT function is asserted on the completed

averaged value.

This gives the flexibility to delay the ALERT until after the averaged

value.

0h = ALERT comparison on non-averaged (ADC) value

1h = ALERT comparison on averaged value

APOL

R/W

Alert Polarity bit sets the Alert pin polarity.

0h = Normal (active-low, open-drain)

1h = Inverted (active-high, open-drain )

ENERGYOF

This bit indicates the health of the ENERGY register.

If the 40-bit ENERGY register has overflowed this bit is set to 1.

0h = Normal

1h = Overflow

Clears by setting the RSTACC field in the Configuration register.

INA781

SBOSAC0 – JULY 2023

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