MPF0900AMBA2ES datasheet(18/205 Pages) NXP

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NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

11 Functional state machine description

11.1 Functional state machine

aaa-056045

RESET

Power-down

sequence

FAULT

TURN

OFF

Power-up

sequence

SYS ON

sequence

FCCU1 XRESET mode

OR FCCU fault (hard reset)

OR WD reset

OR software reset

OR hardware reset

OR ERRMON (hard reset)

Fault timer expired

OR fault counter overflow

OR thermal shutdown

OR external RSTB asserted

OR reset counter overflow

Power-up

failure

Power-up OK

PWRON level = LO

OR PWRON Falling edge

OR software power down

OR VIN_OV protection

OR XFAILB external event

Go to Fail-safe transition

RUN

STBY

SYSTEM ON

PWRON event

No self-test available

PWRON event

Self-test available

Power-up ready

Power-down finished

FUSE

LOAD

B LBIST disabled

OR LBIST DONE

VIN_RISE

1. VIN < VIN_POR

ULPOFF

POWER

From any

state

DBGOFF

DFS

DMS critical fault

OR UVDET falling

OR VANA_POR

DFS reached

DFS not reached

OR DFS disabled

PWRON wakeup

OR limited retry

OR infinite retry

Self-test

NOK

From any state after

DBGOFF

Power-up sequence

Power-down sequence

SYSTEM ON

Fail-safe

transition

2 ms

delay

OFF STATES

Self test

LPOFF

Available on parts targeting medium to high safety integrity levels

LBIST

Figure 6. PF09 Functional state machine

PF09

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 1.3 — 16 December 2025

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