PCA9420BS datasheet(30/85 Pages) NXP

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NXP Semiconductors

PCA9420

Power management IC for low-power microcontroller applications

Bit

Symbol

Default value Type

Function

1: The pre-qual charging timer expiration has happened

since the last time this bit was cleared.

BATTERY_DETECTION

W/C

Battery presence Interrupt

0: The VBAT_DET_OK bit has not changed since the last

time this bit was cleared.

1: The VBAT_DET_OK bit has changed since the last time

this bit was cleared.

VBAT

W/C

Battery Interrupt

0: The VBAT_OK bit has not changed since the last time

this bit was cleared.

1: The VBAT_OK bit has changed since the last time this bit

was cleared.

CHG_OK

W/C

Charger Status Interrupt

0: The CHG_OK bit has not changed since the last time this

bit was cleared.

1: The CHG_OK bit has changed since the last time this bit

was cleared

Table 13. Sub_INT1 register bit description...continued

9.5.6 Sub level interrupt_1 mask (Sub_INT1_Mask, address 05h)

This is a READ AND WRITE register.

Bit

Symbol

Default

value

Type

Function

RSVD

R/W

Reserved bit

ICHG_DEAD_TIMER_INT_MASK 1

R/W

Dead charge timer Interrupt Mask bit

0: Not Masked

1: Masked

VIN_ILIM_MASK

R/W

Input Current Limit Interrupt Mask bit

0: Not Masked

1: Masked

ICHG_FAST_TIMER_MASK

R/W

Fast Charging Timer Expiration Interrupt Mask bit

0: Not Masked

1: Masked

ICHG_PREQ_TIMER_MASK

R/W

Pre-qual Charging Timer Expiration Interrupt Mask bit

0: Not Masked

1: Masked

BATTERY_DETECTION_MASK

R/W

Battery presence Interrupt Mask bit

0: Not Masked

1: Masked

VBAT_MASK

R/W

Battery Interrupt Mask bit

0: Not Masked

1: Masked

CHG_OK_MASK

R/W

Charger Interrupt Mask bit

0: Not Masked

Table 14. Sub_INT1_Mask register bit description

PCA9420

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Product data sheet

Rev. 4.2 — 26 July 2023

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