PCA9420BS datasheet(83/85 Pages) NXP

83 / 85 page

NXP Semiconductors

PCA9420

Power management IC for low-power microcontroller applications

Figures

Fig. 1.

Simplified block diagram ................................... 3

Fig. 2.

PCA9420BS pinout (HVQFN24) – top view .......4

Fig. 3.

PCA9420UK pinout (WLCSP25) – top view ...... 4

Fig. 4.

System configuration diagram; i.MXRT

series .................................................................7

Fig. 5.

System configuration diagram; K4-family

MCU .................................................................. 8

Fig. 6.

Power control state diagram ............................. 9

Fig. 7.

Power-up/down sequence ...............................16

Fig. 8.

Pass-Through mode of BUCK2 (SW2) ............17

Fig. 9.

Typical charging profile example .....................20

Fig. 10.

Charger state diagram .................................... 21

Fig. 11.

Operation over TS bias voltage for JEITA ....... 22

Fig. 12.

Package outline SOT905-1 (HVQFN24) ......... 74

Fig. 13.

Package outline SOT1401-4 (WLCSP25)

(1 of 2) ............................................................ 75

Fig. 14.

Package outline SOT1401-4 (WLCSP25)

(2 of 2) ............................................................ 76

Fig. 15.

Product orientation in carrier tape ................... 77

Fig. 16.

Carrier tape dimensions ..................................77

Fig. 17.

Product orientation in carrier tape ................... 78

Fig. 18.

Carrier tape dimensions ..................................78

PCA9420

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

Product data sheet

Rev. 4.2 — 26 July 2023

83 / 85

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