Datasheet

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Data Sheet ADM1075

Rev. B | 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 R

[11:0] PEAK_VIN Returns the peak VIN voltage since the register was last cleared. 0x0 R

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 R

[11:0] PEAK_VAUX Returns the peak VAUX voltage since the register was last cleared. 0x0 R

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 R

0 CONVERT 0x1 RW

0 Power monitor is not running.

1 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

7 PMON_MODE 0x1 RW

0 This setting selects single-shot sampling mode.

1 Default. This setting selects continuous sampling mode.

6 VAUX_ENABLE 0x0 RW

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

IOUT.

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

5 RESERVED Always reads as 0. 0x0 RW

[4:3] IRANGE 0x1 or

0x2

00 Reserved.

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

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

11 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.