EV5424-R-00A datasheet(36/44 Pages) MPS

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MP5424

– 5V POWER MANAGEMENT IC WITH I2C AND MTP

PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE

MP5424 Rev. 0.81

MonolithicPower.com

12/6/2021

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

Preliminary Specifications Subject to Change

Most of the register bits share the same

description as the MTP e-fuse configuration

table on page 26. Table 2 shows the descriptions

of the I2C register bits that are different from the

MTP register bits.

The I2C register's default values are determined

by the MTP table.

The I2C register can be reset to the hard-coded

default values under two conditions:

1. There is a CRC error while loading the MTP.

2. The MTP page is set to 0.

Thermal shutdown does not reset the I2C register.

Table 2: I2C Register Descriptions

Name

Bits

Default

Description

ENTER_MTP_

MODE

D[7]

Set ENTER_MTP_MODE to 1 to enter pre-MTP configure mode. After MTP

configuration is complete, ENTER_MTP_MODE resets automatically to 0.

PROGRAM_

MTP

D[6]

If PROGRAM_MTP is set 1, then the PMIC executes an MTP configure action .

After MTP configuration is complete, PROGRAM_MTP resets automatically to 0.

PGx

D[X]

PG indicator for the buck converters and LDOs. If VOUT exceeds 90% of the VREF,

then PGx = 1. If VOUT drops below 80% of VREF, then PGx = 0.

During I2C-controlled dynamic voltage scaling, the PG deglitch timer blanks the

possible PG glitch. These PG bits change dynamically to indicate the power good

of each buck’s and each LDO’s status.

OTWARNING

D[7]

Die temperature early warning bit. If OTWARNING is high, this indicates that the

die temperature has exceeded 120°C. OTWARNING latches once it is triggered.

Write 1 to OTWARNING to clear it.

OTEMPP

D[6]

Over-temperature (OT) indicator. If OTEMPP is high, this indicates that thermal

shutdown has been triggered. OTEMPP latches once it is triggered. Write 1 to

OTEMPP to clear it.

VENDOR ID

D[7:4]

1000

Vendor identification.

CHECKSUM

FLAG

D[4]

1: The current MTP page has a CRC or checksum error

0: The current MTP data passes the CRC test

CURRENT

MTP PAGE

INDEX

D[1:0]

CURRENT MTP PAGE INDEX stores the current MTP page index information. The

IC cannot access the MTP while D[1:0] = 10b. The MP5424 MTP can only be

configured two times.

00: Default page; two other pages can be used

01: First page

10: Second page

11: Reserved

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