ADP1048 Analog Devices, ADP1048 Datasheet - Page 72

• Manufacturer Part Number: ADP1048
• Description: Digital Power Factor Correction Controller with accurate AC Power Metering
• Manufacturer: Analog Devices

ADP1047/ADP1048
LOW POWER MODE OPERATION THRESHOLD REGISTER
Table 111. Register 0xFE32—Low Power Mode Operation Threshold
Bits
[7:0]
POWER METERING OFFSET TRIM FOR LOW LINE INPUT REGISTER
Table 112. Register 0xFE33—Power Metering Offset Trim for Low Line Input
Bits
7
[6:0]
POWER METERING GAIN TRIM FOR LOW LINE INPUT REGISTER
Table 113. Register 0xFE34—Power Metering Gain Trim for Low Line Input
Bits
7
[6:0]
HIGH LINE LIMIT REGISTER
Table 114. Register 0xFE35—High Line Limit
Bits
[7:0]
LOW LINE LIMIT REGISTER
Table 115. Register 0xFE36—Low Line Limit
Bits
[7:0]
ILIM_TRIM REGISTER
This register must be unlocked for write access; see Table 61.
Table 116. Register 0xFE37—ILIM_TRIM
Bits
[7:5]
4
[3:0]
VOLTAGE LOOP OUTPUT REGISTER
Table 117. Register 0xFE38—Voltage Loop Output
Bits
[7:0]
Bit Name
Low power threshold
Bit Name
Offset trim polarity
Power meter offset
trim
Bit Name
Gain trim polarity
Power meter gain trim
Bit Name
VAC high line
threshold
Bit Name
VAC low line threshold
Bit Name
RSVD
Trim current direction
ILIM trim
Bit Name
Voltage loop output
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
Description
0 = positive offset trim is introduced.
This value calibrates the power meter offset at the low line input voltage. Each LSB corresponds
to 0.0625/128 of the full input power.
Description
0 = positive gain trim is introduced.
This value calibrates the power meter gain at the low line input voltage. Each LSB corresponds
to 0.0625/128 of the input power.
Description
When the input voltage is higher than this value, the current loop filter for high line input is used.
Description
Description
0 = sink trim current (ILIM − ILIM_TRIM).
These bits set the trim current. Each LSB corresponds to ILIM/64.
Description
Description
These bits set the threshold value (P
lower than this value, the PFC enters low power mode.
1 = negative offset trim is introduced.
1 = negative gain trim is introduced.
When the input voltage is lower than this value, the current loop filter for low line input is used.
Reserved.
1 = source trim current (ILIM + ILIM_TRIM).
Return the output of the voltage control loop.
Rev. 0 | Page 72 of 84
TH
) for low power mode detection. When the input power is
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