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DFE252012F-R47M 数据表(PDF) 83 Page - Analog Devices

部件名 DFE252012F-R47M
功能描述  16VIN/16A, Quad-Phase High-Efficiency Buck Converter
PDF  122 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

DFE252012F-R47M 数据表(HTML) 83 Page - Analog Devices

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BITFIELD
BITS
TYPE
DESCRIPTION
DECODE
M2_SSTRT
_SR
2:0
O
Buck Master2 Soft-Start Slew-Rate
Setting
0x0 = 0.15mV/µs.
0x1 = 0.625mV/µs.
0x2 = 1.25mV/µs.
0x3 = 2.5mV/µs.
0x4 = 5.0mV/µs.
0x5 = 10mV/µs.
0x6 = 20mV/µs.
0x7 = 40mV/µs.
M2_CFG3 (0x39)
BIT
7
6
5
4
3
2
1
0
Field
M2_BBRK[1:0]
M2_ADIS10
0
M2_ADIS1
M2_FTRAK
M2_REFRE
SH
M2_FSREN
M2_FPWM
Reset
0x0
0x1
0x0
0x0
0x0
0x1
0x0
Access
Type
Write, Read
Write, Read
Write, Read
Write, Read
Write, Read
Write, Read
Write, Read
BITFIELD
BITS
TYPE
DESCRIPTION
DECODE
M2_BBRK
7:6
O
Buck Master2 Body-Braking Control
Setting
0x0 = Disable.
0x1 = Body braking for 8μs.
0x2 = Body braking for 8μs followed by
FPWM for 8μs.
0x3 = Reserved.
M2_ADIS10
0
5
O
Buck Master2 100Ω Active Discharge
0x0 = Disable.
0x1 = Enable.
M2_ADIS1
4
O
Buck Master2 1Ω Active Discharge:
Note that 1Ω active discharge must be
disabled when falling slew-rate function of
corresponding output is disabled
(M2_FSREN = 0).
0x0 = Disable.
0x1 = Enable (Active for 1ms after soft-
stop is completed).
M2_FTRAK
3
O
Buck Master2 Internal Frequency
Tracking Control
0x0 = Disable.
0x1 = Enable.
M2_REFRE
SH
2
O
Buck Master2 Bootstrap Refresh Interval
Control
0x0 = 128μs.
0x1 = 10μs.
M2_FSREN
1
O
Buck Master2 Falling Slew-Rate Control
0x0 = Disable (buck does not sink current
from COUT in skip or LP-skip mode).
0x1 = Enable (buck operates in FPWM
mode to sink current from COUT when its
VOUT(TARGET) is lower than the actual
VOUT).
M2_FPWM
0
O
Buck Master2 Forced-PWM Control
0x0 = Disable (automatic skip mode
operation under light load condition).
0x1 = Enable (OR logic with FPWM_M2
input).
M2_CFG4 (0x3A)
BIT
7
6
5
4
3
2
1
0
Field
M2_SS_ENV[1:0]
M2_SS_FREQ[1:0]
M2_SSM_PAT[1:0]
M2_FREQ[1:0]
Reset
0x0
0x0
0x0
0x1
Access
Type
Write, Read
Write, Read
Write, Read
Write, Read
MAX77542
16VIN/16A, Quad-Phase High-Efficiency Buck
Converter
www.analog.com
Analog Devices | 83



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