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MP2884A Datasheet(PDF) 39 Page - Monolithic Power Systems

No. de pieza MP2884A
Descripción Electrónicos  Digital, Multi-Phase PWM Controller with PMBus and PWM-VID
PDF  107 Pages
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Fabricante Electrónico  MPS [Monolithic Power Systems]
Página de inicio  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2884A Datasheet(HTML) 39 Page - Monolithic Power Systems

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MP2884A – DIGITAL PWM CONTROLLER WITH PMBUS AND PWM-VID
MP2884A Rev. 1.01
www.MonolithicPower.com
39
12/25/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
MFR_IDROOP_CTRL (1Eh)
This register sets the droop current gain and AC droop.
Command
MFR_IDROOP_CTRL
Format
Unsigned binary
Bit
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
x
x
IDROOP_SET
Bits
Bit Name
Description
7:6
RESERVED
Unused. X indicates that writes are ignored and reads are always 0.
5
AC_DROOP_EN
Enable bit of the AC droop loop. This loop eliminates the droop effect in steady
state but keeps the droop effective during the load transient or DVID.
0: disable
1: enable
4
AC_DROOP_LOOP_BW
Sets the bandwidth of the AC droop loop. This bit is only effective when
AC_DROOP_EN = 1.
0: BW = 20kHz
1: BW = 40kHz
3:0
IDROOP_SET
IDROOP_SET
IDROOP / ICSSUM
IDROOP_SET
IDROOP / ICSSUM
0
0
8
12/64
1
5/64
9
13/64
2
6/64
10
14/64
3
7/64
11
15/64
4
8/64
12
16/64
5
9/64
13
17/64
6
10/64
14
18/64
7
11/64
15
19/64
VOUT_MIN (1Fh)
This register sets the minimum voltage setting for both PWM-VID mode and PMBus VID override mode.
Command
VOUT_MIN
Format
VID
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
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
x
x
x
x
x
x
VOUT_MIN
Bits
Bit Name
Description
15:9
RESERVED
Unused. X indicates that writes are ignored and reads are always 0.
8:0
VOUT_MIN
Minimum voltage setting. Any setting smaller than this value is clamped. This is
the target VID when the pulse duty from PWM-VID is zero. 6.25mV/LSB.
VOUT_COMMAND (21h)
This register is used to set the output voltage on the fly for PMBus VID override mode.
Command
VOUT_COMMAND
Format
VID
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
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
x
x
x
x
x
x
VOUT_COMMAND



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