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INA260

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SBOS656C – JULY 2016 – REVISED DECEMBER 2016

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Copyright © 2016, Texas Instruments Incorporated

8.6.2 Current Register (01h) (Read-Only)

The value in the current register is represented in two's complement format to support negative current values.

The LSB size for the current register is set to 1.25 mA. If averaging is enabled, this register will report the

averaged value.

Figure 31. Current Register (01h) (Read-Only)

15

14

13

12

11

10

9

8

CSIGN

CD14

CD13

CD12

CD11

CD10

CD9

CD8

0

0

0

0

0

0

0

0

R

7

6

5

4

3

2

1

0

CD7

CD6

CD5

CD4

CD3

CD2

CD1

CD0

0

0

0

0

0

0

0

0

R

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

8.6.3 Bus Voltage Register (02h) (Read-Only)

The Bus Voltage Register stores the most recent bus voltage reading, VBUS.

If averaging is enabled, this register reports the averaged value.

Full-scale range = 40.96 V (decimal = 32767); LSB = 1.25 mV.

(1)

Bit 15 is always zero because bus voltage can only be positive.

Figure 32. Bus Voltage Register (02h) (Read-Only)

15(1)

14

13

12

11

10

9

8

—

BD14

BD13

BD12

BD11

BD10

BD9

BD8

0

0

0

0

0

0

0

0

R

7

6

5

4

3

2

1

0

BD7

BD6

BD5

BD4

BD3

BD2

BD1

BD0

0

0

0

0

0

0

0

0

R

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

8.6.4 Power Register (03h) (Read-Only)

If averaging is enabled, this register reports the averaged value.

The Power Register LSB is fixed to 10 mW.

The Power Register records power in Watts by multiplying the decimal values of the Current Register with the

decimal value of the Bus Voltage Register. Values stored in the power register will always be positive regardless

of the direction of current flow. The maximum value that can be returned by the power register is A3D7h or

419.43 W.

Figure 33. Power Register (03h) (Read-Only)

15

14

13

12

11

10

9

8

PD15

PD14

PD13

PD12

PD11

PD10

PD9

PD8

0

0

0

0

0

0

0

0

R

7

6

5

4

3

2

1

0

PD7

PD6

PD5

PD4

PD3

PD2

PD1

PD0

0

0

0

0

0

0

0

0

R

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset