ADP1050ACPZ-R7 datasheet(57/93 Pages) AD

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ADP1050

Data Sheet

VOUT_SCALE_LOOP

The VOUT_SCALE_LOOP command is equal to the feedback resistor ratio. The nominal output voltage is set by a resistor divider and

the internal 1 V reference voltage. For example, if the nominal output voltage is 12 V, the VOUT_SCALE_LOOP value = 1 V/12 V =

0.08333 and the VOUT_SCALE_LOOP can be set as 0xA155.

Table 30. Register 0x29—VOUT_SCALE_LOOP

Bits

Bit Name/Function

R/W

Description

[15:11]

Exponent

R/W

5-bit twos complement N value for linear format: KR = Y × 2N.

N must be in the range of −12 to 0 decimal.

[10:0]

Mantissa

R/W

11-bit twos complement Y value for linear format: KR = Y × 2N.

VOUT

RESISTOR

DIVIDER

RATIO

ERROR

PROCESSING/

CONTROL LOOP

PMBus DEVICE

VOUT_

SCALE_

LOOP

VOUT_COMMAND

Figure 54. Conceptual View of the VOUT_SCALE_LOOP Command

VOUT_SCALE_MONITOR

This command is typically the same as the VOUT_SCALE_LOOP command. It is used for reading the output voltage with the READ_VOUT

command (Register 0x8B).

Table 31. Register 0x2A—VOUT_SCALE_MONITOR

Bits

Bit Name/Function

R/W

Description

[15:11]

Exponent

R/W

5-bit twos complement N value for linear format: KR = Y × 2N.

N must be in the range of −12 to 0 decimal.

[10:0]

Mantissa

R/W

11-bit twos complement Y value for linear format: KR = Y × 2N.

Rev. A | Page 56 of 92

ADP1050ACPZ-R7 数据表(PDF) 57 Page - Analog Devices

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