ADM1075 datasheet(49/52 Pages) AD

49 / 52 page

Data Sheet

ADM1075

Rev. A | Page 49 of 52

Bits

Bit Name

Settings

Description

Reset

Access

IOUT_WARN2_OC_SELECT

Sets IOUT Warning 2 limit to OC or UC.

0x0

Configures IOUT_WARN2_LIMIT as an undercurrent threshold

Configured IOUT_WARN2_LIMIT as an overcurrent threshold

[3:2]

OC_TRIP_SELECT

Sets severe OC trip threshold.

0x0

125%.

150%. Default.

200%.

225%.

[1:0]

OC_FILT_SELECT

Sets severe OC filter time.

0x0

200 ns.

900 ns. Default.

10.7 μs.

57 μs.

POWER CYCLE REGISTER

Address: 0xD9, Send Byte, No Data, Name: POWER_CYCLE

PEAK PIN REGISTER

Address: 0xDA, Reset: 0x0000, Name: PEAK_PIN (writing 0x0000 clears the peak value)

Table 37. Bit Descriptions for PEAK_PIN

Bits

Bit Name

Settings

Description

Reset

Access

[15:0]

PEAK_PIN

Returns the peak input power since the register was last cleared.

0x0

READ PIN_EXT REGISTER

Address: 0xDB, Reset: 0x03, 0x000000, Name: READ_PIN_EXT

Table 38. Bit Descriptions for READ_PIN_EXT

Byte

Bit Name

Settings

Description

Reset

Access

[0]

BYTE_COUNT

Always reads as 0x03, the number of data bytes that the block

read command should expect to read.

0x3

[3:1]

READ_PIN_EXT

This is the result of the VIN × IOUT calculation that has not been

truncated. Byte 3 is the high byte, Byte 2 is the middle byte, and

Byte 1 is the low byte.

0x0

READ EIN_EXT REGISTER

Address: 0xDC, Reset: 0x08, 0x000000, 0x0000, 0x000000, Name: READ_EIN_EXT

Table 39. Bit Descriptions for READ_EIN_EXT

Byte

Bit Name

Settings

Description

Reset

Access

[0]

BYTE_COUNT

Always reads as 0x08, the number of data bytes that the block

read command should expect to read.

0x8

[3:1]

ENERGY_EXT

This is the 24-bit energy accumulator in direct format. Byte 3 is

the high byte, Byte 2 is the middle byte, and Byte 1 is the low

byte.

0x0

[5:4]

ROLLOVER_EXT

Number of times that the energy count has rolled over, from

0x7FFF to 0x0000. This is a straight 16-bit binary value. Byte 5 is

the high byte, Byte 4 is the low byte.

0x0

[8:6]

SAMPLE_COUNT

This is the total number of PIN samples acquired and

accumulated in the energy count accumulator. Byte 8 is the high

byte, Byte 7 is the middle byte, and Byte 6 is the low byte.

0x0

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