FS5502 datasheet(87/113 Pages) NXP

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NXP Semiconductors

FS5502

High voltage PMIC with multiple SMPS and LDO

TA = −40 °C to 125 °C, unless otherwise specified. VSUP = VSUP_UVH to 36 V, unless otherwise specified. All voltages referenced to

ground.

Symbol

Parameter

Min

Typ

Max

Unit

VCOREMON_OV_max Overvoltage threshold maximum

—

+12

—

VCOREMON_OV_step Overvoltage threshold step (OTP_

VCOREOVTH[7:0] bits)

—

+0.5

—

VCOREMON_OV_acc

Overvoltage threshold accuracy

−2

—

μs

TCOREMON_OV

Overvoltage filtering time (OTP_VCORE_OV_

DGLT bit)

μs

VCOREMON_UV_min

Undervoltage threshold minimum

—

−4.5

—

VCOREMON_UV_max Undervoltage threshold maximum

—

−12

—

VCOREMON_UV_step Undervoltage threshold step (OTP_

VCOREUVTH[7:0] bits)

—

−0.5

—

VCOREMON_UV_acc

Undervoltage threshold accuracy

−2

—

2.5

7.5

μs

TCOREMON_UV

Undervoltage filtering time (OTP_VCORE_UV_

DGLT[1:0] bits)

μs

Table 82. VCOREMON electrical characteristics...continued

27.2.2 Static voltage scaling (SVS)

A static voltage scaling function is implemented to allow the MCU to reduce the output

voltage initially configured at start-up of BUCK1. The SVS configuration must be done in

INIT_FS phase. The offset value is configurable by I2C with the SVS_OFFSET[4:0] bits

and the exact complemented value shall be written in the NOT_SVS_OFFSET[4:0] bits.

SVS_OFFSET[4:0]

NOT_SVS_OFFSET[4:0]

Offset applied to BUCK1

0 0000 (default)

1 1111

0 mV

0 0001

1 1110

−6.25 mV

...

−6.25 mV step per bit

1 0000

0 1111

−100 mV

Reset condition

POR

Table 83. SVS offset configuration

The BUCK1 output voltage transition starts when the NOT_SVS_OFFSET[4:0] I2C

command is received and confirmed good. If the NOT_SVS_OFFSET[4:0] I2C command

is not the exact opposite to the SVS_OFFSET[4:0] I2C command, the SVS procedure

is not executed and the BUCK1 output voltage remains at its original value. The OV/

UV threshold changes immediately when the NOT_SVS_OFFSET[4:0] I2C command is

received and confirmed good. Therefore, the BUCK1 output voltage transition is done

within TCOREMON_OV.

FS5502

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

Product data sheet

Rev. 4 — 27 October 2021

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