MP2884A datasheet(65/107 Pages) MPS

65 / 107 page

MP2884A – DIGITAL PWM CONTROLLER WITH PMBUS AND PWM-VID

MP2884A Rev. 1.01

www.MonolithicPower.com

12/25/2018

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

STATUS_VOUT (7Ah)

This register records the fault and warning status of the output voltage.

Command

STATUS_VOUT

Format

Unsigned binary

Bit

Access

Function

Bits

Bit Name

Description

VOUT_OV_FAULT

Once output OVP occurs, this bit is set. This bit is in latch mode. The

CLEAR_FAULTS command can reset this bit.

RESERVED

Unused. X indicates that writes are ignored and reads are always 0.

VOUT_UV_WARNING

Once an output over-voltage warning occurs, this bit is set. This bit is in latch

mode. The CLEAR_FAULTS command can reset this bit.

VOUT_UV_FAULT

Once output UVP occurs, this bit is set. This bit is in latch mode. The

CLEAR_FAULTS command can reset this bit.

VOUT_MAX_MIN_

WARNING

Once

the

value

the

PMBus

command

VOUT_COMMAND,

VOUT_MARGIN_HIGH, or VOUT_MARGIN_LOW exceeds VOUT_MAX or

VOUT_MIN, this bit is set. This bit is in latch mode. The CLEAR_FAULTS

command can reset this bit.

RESERVED

Unused. X indicates that writes are ignored and reads are always 0.

LINE_FLOAT

During the EEPROM restore process after the chip powers on, the controller can

check if the output voltage remote sense pin is floating with this function enabled.

Once the controller detects that VOSEN is floating, it enters shutdown mode, and

this bit is set.

VDIFF_FAULT

During the soft-start process, once the MP2884A detects that VOSEN is greater

than VDIFF by 0.5V, the VR is shut down immediately, and this bit is set.

STATUS_IOUT (7Bh)

This register records the fault and warning status of the output current.

Command

STATUS_IOUT

Format

Unsigned binary

Bit

Access

Function

Bits

Bit Name

Description

IOUT_OC_FAULT

Once output OCP occurs, this bit is set. This bit is in latch mode. The

CLEAR_FAULTS command can reset this bit.

OC_UV_FAULT

If both output OCP and OVP occur, this bit is set. This bit is in latch mode. The

CLEAR_FAULTS command can reset this bit.

IOUT_OC_WARNING

Once an output OC warning occurs, this bit is set. This bit is in latch mode. The

CLEAR_FAULTS command can reset this bit.

4:1

RESERVED

Unused. X indicates that writes are ignored and reads are always 0.

POUT_OP_WARNING

Once output over-power protection (OPP) occurs, this bit is set. This bit is in

latch mode. The CLEAR_FAULTS command can reset this bit.

MP2884A Datasheet(PDF) 65 Page - Monolithic Power Systems

MP2884A Datasheet(HTML) 65 Page - Monolithic Power Systems

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Descarga

Enlace URL