LM5064PMHSLASHNOPB datasheet(44/64 Pages) TI2

44 / 64 page

LM5064

SNVS718E – JUNE 2011 – REVISED FEBRUARY 2013

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Table 32. SAMPLES_FOR_AVG Register (continued)

AVGN

N = 2AVGN

Averaging/Register Update Period (ms)

0011

0100

0101

0110

0111

128

1000

256

1001

512

1010

1024

1011

2048

1100

4096

Note that a change in the SAMPLES_FOR_AVG register will not be reflected in the average telemetry

measurements until the present averaging interval has completed. The default setting for AVGN is 0000,

therefore, the average telemetry will mirror the instantaneous telemetry until a value higher than zero is

programmed.

The SAMPLES_FOR_AVG register is accessed via the PMBus read / write byte protocol.

Table 33. SAMPLES_FOR_AVG Register

Value

Meaning

Default

0h – 0Ch

Exponent (AVGN) for number of samples to

00h

average over

MFR_SPECIFIC_12: READ_AVG_VIN (DCh)

The READ_AVG_VIN command will report the 12-bit ADC measured input average voltage. If the data is not

ready, the returned value will be the previous averaged data. However, if there is no previously averaged data,

the default value (0000h) will be returned. This data is read with the PMBus Read Word protocol. This register

should use the coefficients shown in Table 41.

Table 34. READ_AVG_VIN Register

Value

Meaning

Default

0h – 0FFFh

Average of measured values for input

0000h

voltage

MFR_SPECIFIC_13: READ_AVG_VOUT (DDh)

The READ_AVG_VOUT command will report the 12-bit ADC measured OUT pin average voltage. The returned

value will be the default value (0000h) or previous data when the average data is not ready. This data is read

with the PMBus Read Word protocol. This register should use the coefficients shown in Table 41.

Table 35. READ_AVG_VOUT Register

Value

Meaning

Default

0h – 0FFFh

Average of measured values for output

0000h

voltage

MFR_SPECIFIC_14: READ_AVG_IIN (DEh)

The READ_AVG_IIN command will report the 12-bit ADC measured VAUXH average voltage. The returned

value will be the default value (0000h) or previous data when the average data is not ready. This data is read

with the PMBus Read Word protocol. This register should use the coefficients shown in Table 41.

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