参数资料
型号: ADP1048DC1-EVALZ
厂商: Analog Devices Inc
文件页数: 69/84页
文件大小: 0K
描述: DAUGHTERCARD ADP1048
标准包装: 1
主要目的: 电源管理,功率因数校正
嵌入式:
已用 IC / 零件: ADP1048
次要属性: USB,I2C接口
已供物品:
Data Sheet
ADP1047/ADP1048
Bits
[4:2]
Bit Name
Delay time
R/W
R/W
Description
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
7
[6:0]
Bit Name
Enable automatic
threshold
Threshold voltage
R/W
R/W
R/W
Description
1 = enable automatic threshold.
0 = disable automatic threshold.
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
7
[6:0]
Bit Name
RSVD
VAC average
reading
R/W
R
R
Description
Reserved.
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
[7:0]
Bit Name
Minimum ac line
period
R/W
R/W
Description
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
[7:0]
Bit Name
Maximum ac line
period
R/W
R/W
Description
These bits set the maximum ac line period of the input voltage. Each LSB corresponds to 163.84 μs
resolution.
Rev. 0 | Page 69 of 84
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