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ADP1048ARQZ-R7 数据表(PDF) 69 Page - Analog Devices

部件名 ADP1048ARQZ-R7
功能描述  Digital Power Factor Correction Controller
PDF  84 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP1048ARQZ-R7 数据表(HTML) 69 Page - Analog Devices

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Data Sheet
ADP1047/ADP1048
Rev. 0 | Page 69 of 84
Bits
Bit Name
R/W
Description
[4:2]
Delay time
R/W
Delay time before switching from the fast loop filter back to the normal filter after the output
voltage is within the regulation band (Bits[6:5]).
Bit 4
Bit 3
Bit 2
Number of Half AC Line Cycles
0
0
0
0
0
0
1
1
0
1
0
2
0
1
1
3
1
0
0
4
1
0
1
5
1
1
0
6
1
1
1
7
1
Enable fast loop
during soft start
R/W
Enables the fast loop filter during soft start.
1 = fast loop filter is used during soft start.
0 = normal filter is used during soft start.
0
Enable fast loop
R/W
Enables the fast loop filter with a delay. The threshold is programmed in Bits[6:5].
1 = enable fast loop filter.
0 = disable fast loop filter.
VAC_THRESHOLD_SET REGISTER
This register sets the input voltage threshold for input ac line period measurement and zero-crossing detection.
Table 98. Register 0xFE25—VAC_THRESHOLD_SET
Bits
Bit Name
R/W
Description
7
Enable automatic
threshold
R/W
1 = enable automatic threshold.
0 = disable automatic threshold.
[6:0]
Threshold voltage
R/W
These bits set the threshold voltage to detect the ac line frequency and period if Bit 7 is set to 0.
VAC_THRESHOLD_READ REGISTER
Table 99. Register 0xFE26—VAC_THRESHOLD_READ
Bits
Bit Name
R/W
Description
7
RSVD
R
Reserved.
[6:0]
VAC average
reading
R
Return the reading of the threshold voltage to detect the ac line frequency and period if the
automatic threshold is enabled in Register 0xFE25, Bit 7.
MIN_AC_PERIOD_SET REGISTER
Table 100. Register 0xFE27—MIN_AC_PERIOD_SET
Bits
Bit Name
R/W
Description
[7:0]
Minimum ac line
period
R/W
These bits set the minimum ac line period of the input voltage. Each LSB corresponds to 163.84 μs
resolution.
MAX_AC_PERIOD_SET REGISTER
Table 101. Register 0xFE28—MAX_AC_PERIOD_SET
Bits
Bit Name
R/W
Description
[7:0]
Maximum ac line
period
R/W
These bits set the maximum ac line period of the input voltage. Each LSB corresponds to 163.84 μs
resolution.



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