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MP8796B 데이터시트(PDF) 39 Page - Monolithic Power Systems

부품명 MP8796B
상세설명  16V, 30A, Scalable, Digital, Synchronous Step-Down Converter with PMBus
PDF  52 Pages
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제조업체  MPS [Monolithic Power Systems]
홈페이지  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP8796B 데이터시트(HTML) 39 Page - Monolithic Power Systems

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MP8796B – 16V, 30A, SYNCHRONOUS STEP-DOWN CONVERTER WITH PMBUS
MP8796B Rev. 1.0
www.MonolithicPower.com
39
1/19/2020
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.
VIN_UV_WARN_LIMIT (58h)
The VIN_UV_WARN_LIMIT command configures or reads the threshold for input under-voltage (UV)
fault detection. If the measured value of VIN falls below the value in this register, the VIN UV warning
flags are set in their respective registers, and the ALT# signal is asserted.
Command
VIN_UV_WARN_LIMIT
Format
Direct
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Access
R
R
R
R
R
R
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
Function
X
250mV/LSB
Default
Value
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
The value is unsigned and 1LSB = 250mV. The default value is 0x28. The corresponding value is 10V.
The VIN_UV_WARN_LIMIT setting value should not be set below 3.3V.
TON_DELAY (60h)
The TON_DELAY command sets the time (in ms) from when a start condition is received (as
programmed by the ON_OFF_CONFIG command) until the output voltage starts to rise.
Command
TON_DELAY
Format
Direct
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Access
R
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
X
4ms/LSB
Default
Value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
The value is unsigned and 1LSB = 4ms. The maximum value is FFh (1020ms). The default value is
0ms.
TON_RISE (61h)
The TON_RISE command sets the soft-start time (in ms) from when the output starts to rise until the
voltage reaches the regulation point.
Command
TON_RISE
Format
Direct
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Access
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
X
1ms/LSB
Default
Value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
The only supported values are:
3’b000: 1ms
3’b001: 2ms
3’b010: 4ms
3’b011: 8ms
3’b100 and up: 16ms
The default value is 0x01 (i.e. 2ms for soft-start time).



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