MPF0900AMMA2ES datasheet(162/205 Pages) NXP

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NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

FCCUx Status

Condition

Error type

HIGH

Longer than tFCCU_LF

Too slow

HIGH

Shorter than tFCCU_HF

Too fast

LOW

Longer than tFCCU_LF

Too slow

LOW

Shorter than tFCCU_HF

Too fast

Table 213. FCCUx error conditions

The FCCUx_RPULL_EN bit is used to enable or disable the internal pulldown resistor in the corresponding

input.

FCCUx_RPULL_EN

FCCUx internal pull resistor

Pull-down disabled

Pull-down Enabled

Table 214. FCCUx internal pull resistor selection in single-ended PWM mode

14.7.5 FCCU diagnostics

In single-ended mode (Level or PWM modes) each FCCUx pin is provided with an independent interrupt flag

FCCUx_I to report a fault condition on the corresponding FCCU pin. An FCCUx_I interrupt will assert the INTB

pin if the interrupt is not masked.

The FCCUx_S bit provides the real time status of the corresponding FCCUx input.

FCCUx_S

FCCUx sense bit

No error mode

FCCU error detected

Table 215. FCCUx sense bit

In bistable mode, the FCCU will report the fault conditions through the FCCU0_I bit, and the FCCU0_M bit

controls the interrupt mask for the FCCU interface. An FCCU0_I interrupt will assert the INTB pin if the interrupt

is not masked.

In bistable operation the FCCU0_S bit provides the real time fault status of the FCCU interface.

FCCU0_S

FCCU0 sense bit

No error mode

FCCU error detected

Table 216. FCCU0 sense bit

14.7.6 Electrical characteristics

All parameters are specified at TA = -40 °C to 125 °C, unless otherwise noted. Typical values are characterized at VIN = 5 V

and TA = 25 °C, unless otherwise noted.

Symbol

Description

Min

Typ

Max

Unit

VIL_FCCUx

FCCUx low input level threshold

• Maximum voltage to ensure a low state

–

0.3*VDDIO

VIH_FCCUx

FCCUx high input level threshold

0.7*VDDIO

–

Table 217. FCCU electrical characteristics

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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