MPF5024AMBA0ES datasheet(28/93 Pages) NXP

28 / 93 page

NXP Semiconductors

PF5024

Power management integrated circuit (PMIC) for high performance applications

PF5024

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Product data sheet

Rev. 1 — 15 April 2020

28 / 93

ILIM faults are debounced for 1.0 ms before they can be detected as a fault condition. If

the regulator is programed to disable upon an ILIM condition, the regulator turns off as

soon as the ILIM condition is detected.

OV/UV faults are debounced for defined filter time before they are detected as a fault

condition. If the regulator is programmed to disable upon an OV or UV, the regulator will

turn off if the fault persist for longer than 300 µs after the OV/UV fault has been detected.

RegX_STATE = 0 && Regx_FLT_REN = 0

ILIM fault

RegX_STATE = 0 && Regx_FLT_REN = 0

OV/UV fault

User

Enabled

300 µs

PGOOD

REGx

I_REGx

REGx_EN

RegX_PG

REGx_EN

REGx

User

Enabled

ILIM

1 ms

aaa-028057

Figure 12. Regulator turned off upon with RegX_STATE = 0 and FLT_REN = 0

When a regulator is programmed to disable upon an OV, UV, or ILIM fault, a bit is

provided to decide whether a regulator can return to its previous configuration or remain

disabled when the fault condition is cleared.

SWx_FLT_REN

• 0 = regulator remains disabled after the fault condition is cleared or no longer present

• 1 = regulator returns to its previous state if fault condition is cleared

If a regulator is programmed to remain disabled after clearing the fault condition, the

MCU can turn it back ON during the system On state by toggling OFF and ON the

corresponding mode/enable bits.

When the bit SWx_FLT_REN = 1, if a regulator is programmed to turn off upon an OV,

UV or ILIM condition, the regulator returns to its previous state 500 µs after the fault

condition is cleared. If the regulator is programmed to turn off upon an ILIM condition, the

device may take up to 1.0 ms to debounce the ILIM condition removal, in addition to the

500 µs wait period to re-enable the regulator.

MPF5024AMBA0ES Datasheet(PDF) 28 Page - NXP Semiconductors

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