PCA9421 datasheet(45/66 Pages) NXP

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NXP Semiconductors

PCA9421

Power management IC for low-power microcontroller applications

13 Electrical characteristics

Unless otherwise specified, VVIN=5 V, VVIN_AUX=3.8 V, LDO1_OUT=1.8 V, LDO2_OUT=1.8 V.

CVIN=2.2 µF/10 V, CASYS=4.7 µF/10 V, CVIN_AUX=1 µF/10 V, CLDO1_OUT=1 µF/6.3 V, CLDO2_OUT=2.2 µF/6.3 V,

CSW1_OUT=10 µF/6.3 V, CSW2_OUT=10 µF/6.3 V, LSW1 =2.2 µH, LSW2 =2.2 µH, Tamb= -40 °C to +85 °C, Typical

value at Tamb=25 °C

13.1 Top level parameter

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIN_AUX QUIESCENT CURRENT

TJ = 25 °C

2.9

4.5

IVIN_AUX_NOLOAD1

VIN_AUX quiescent Current

VIN_AUX=4.5 V

SW1, SW2, LDO1, LDO2

enabled, no load. No

switching on SW1, SW2.

VIN = open

TJ = 85 °C [1]

4.5

µA

TJ = 25 °C

3.5

IVIN_AUX_NOLOAD2[1]

VIN_AUX quiescent Current

VIN_AUX = 4.5 V SW1, SW2,

LDO1, LDO2

enabled, no load.

Switching on SW1, SW2.

VIN = open

TJ = 85 °C

5.5

µA

TJ = 25 °C

750

1200

IVIN_AUX_DISABLE[1]

VIN_AUX quiescent Current

VIN_AUX = 4.5 V SW1, SW2,

LDO1, LDO2

Disabled

VIN = open

TJ = 85 °C

1500

3000

VIN

VINUVLO

VIN Under voltage

lock-out

I2C programmable in

200 mV steps, VIN

Falling

2.9

3.5

VINUVLO Accuracy

-5

VINUVLO_HYS

Hysteresis on VINUVLO

200

VINOVP

I2C programmable

at 5.5 V or 6 V, VIN

Rising

5.5

6.0

VINOVP Accuracy

Input over- voltage protection

threshold

-3.5

+3.5

VINOVP Hysteresis

VIN Falling

100

tDGL(VINOVP) [1]

Input over-voltage reaction

time

VIN: 5 V → 7 V, 1 V/

µs

1.5

µs

VIN_ILIM [2:0] = 000 74

VIN Current Limit

Input current limit

VIN_ILIM [2:0] = 010 370

425

489

ASYS

Table 62. EC table for Top level

PCA9421

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Product data sheet

Rev. 1.0 — 16 October 2023

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