MP5990 datasheet(65/72 Pages) MPS

65 / 72 page

MP5990

– 16V, 50A, 1mΩ, INTELLIGENT HOT-SWAP SOLUTION WITH PMBUS

MP5990 Rev. 1.1

MonolithicPower.com

4/19/2024

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

FAULT_RECORD (FAh)

The FAULT_RECORD command stores all the current fault bits of system. The related bit is set to 1 if a

fault occurs.

Command

FAULT_RECORD

Format

Unsigned binary

Bit

Access

Function

Bits

Bit Name

Description

RESERVED

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

NVM_CRC_FAULT

Indicates whether a CRC fault has occurred. While storing the operating memory

data to the NVM, the MP5990 calculates a CRC code for each bit and saves the

final CRC code to the NVM. When restoring the NVM data to the operating

memory, the MP5990 recalculates the CRC code for each bit. The MP5990

checks the CRC results when the restoration process is complete. If the CRC

result does not match what is stored in the storing process, the VR shuts down

and this bit is set.

’b0: No NVM CRC fault has been detected

’b1: An NVM CRC fault has been detected

NVM_SIG_FAULT

While restoring data from the NVM to the memory, the device checks the

signature register in address 00h of the NVM first. If the signature register is

0x1234, the restoration process stops immediately and this bit is set.

’b0: No NVM signature fault has occurred

’b1: An NVM signature fault has occurred

RESERVED

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

OTP_CONTROLLER_

FAULT

Indicates whether the controller experiences an over-temperature (OT) fault.

Once the controller

’s temperature exceeds its OT threshold, this bit is set.

’b0: No controller OT fault has occurred

’b1: A controller OT fault has occurred

MAX_SS_FAULT

Indicates whether the slave experiences a maximum SS fault. If the SS pin is still

low when the maximum soft start time ends, this bit is set.

’b0: No maximum SS fault has occurred

’b1: A maximum SS fault has occurred

RESERVED

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

VIN_OV_FAULT

VIN over-voltage (OV) fault indicator. Once the sensed VIN exceeds the VIN OV

fault limit, this bit is set.

’b0: No VIN OV fault has occurred

’b1: A VIN OV fault has occurred

RESERVED

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

SLAVE_GOK_FAULT

Indicates whether a slave GOK fault has occurred. If a slave has faults, GOK

pulls low and this bit is set.

’b0: No slave faults have occurred

’b1: A slave fault has occurred

MP5990 датащи(PDF) 65 Page - Monolithic Power Systems

MP5990 датащи(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

датащи скачать

ссылки URL