ADM1075 datasheet(45/52 Pages) AD

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Data Sheet

ADM1075

Rev. A | Page 45 of 52

PEAK VIN REGISTER

Address: 0xD1, Reset: 0x0000, Name: PEAK_VIN (writing 0x0000 clears the peak value)

Table 29. Bit Descriptions for PEAK_VIN

Bits

Bit Name

Settings

Description

Reset

Access

[15:12]

RESERVED

Always reads as 0000.

0x0

[11:0]

PEAK_VIN

Returns the peak VIN voltage since the register was last cleared.

0x0

PEAK VAUX REGISTER

Address: 0xD2, Reset: 0x0000, Name: PEAK_VAUX (writing 0x0000 clears the peak value)

Table 30. Bit Descriptions for PEAK_VAUX

Bits

Bit Name

Settings

Description

Reset

Access

[15:12]

RESERVED

Always reads as 0000.

0x0

[11:0]

PEAK_VAUX

Returns the peak VAUX voltage since the register was last cleared.

0x0

POWER MONITOR CONTROL REGISTER

Address: 0xD3, Reset: 0x01, Name: PMON_CONTROL

Table 31. Bit Descriptions for PMON_CONTROL

Bits

Bit Name

Settings

Description

Reset

Access

[7:1]

RESERVED

Always reads as 0000000.

0x0

CONVERT

0x1

Power monitor is not running.

Default. Starts the sampling of current and voltage with the power

monitor. In single-shot mode, this bit clears itself after one complete cycle.

In continuous mode, this bit must be written to 0 to stop sampling.

POWER MONITOR CONFIGURATION REGISTER

Address: 0xD4, Reset: 0x8F, Name: PMON_CONFIG

Table 32. Bit Descriptions for PMON_CONFIG

Bits

Bit Name

Settings

Description

Reset

Access

PMON_MODE

0x1

This setting selects single-shot sampling mode.

Default. This setting selects continuous sampling mode.

VAUX_ENABLE

0x0

Default. The power monitor samples the input voltage on ADC_V and

IOUT.

The power monitor also samples the voltage on the ADC_AUX pin.

RESERVED

Always reads as 0.

0x0

[4:3]

IRANGE

0x1 or

0x2

Reserved.

Sets current sense range to 25 mV. Default for ADM1075-1.

Sets current sense range to 50 mV. Default for ADM1075-2.

Reserved.

[2:0]

AVERAGING

0x7

000

Disables sample averaging for current and voltage.

001

Sets sample averaging for current and voltage to two samples.

010

Sets sample averaging for current and voltage to four samples.

011

Sets sample averaging for current and voltage to eight samples.

100

Sets sample averaging for current and voltage to 16 samples.

101

Sets sample averaging for current and voltage to 32 samples.

110

Sets sample averaging for current and voltage to 64 samples.

111

Default. Sets sample averaging for current and voltage to 128 samples.

ADM1075 Datasheet(PDF) 45 Page - Analog Devices

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