PCA9420 datasheet(66/87 Pages) NXP

66 / 87 page

NXP Semiconductors

PCA9420

Power management IC for low-power microcontroller applications

13.2 Battery charger

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

LINEAR CHARGER

VBAT_REG

VBAT regulation voltage range I2C programmable, 20 mV/

step

3.60

4.60

IOUT=0 mA to 200 mA;

VIN= 5 V, Tamb=25 °C

-0.75

0.75

%VBAT_REG

VBAT_REG Regulation Voltage

Accuracy

IOUT=0 mA to 200 mA; VIN=

5 V, Tamb=-40 °C to +85 °C

-1

ICHG_CC

Constant charging current

value

I2C programmable,

VBAT_REG > VBAT >

VBAT_LOW; VIN = 5 V

315

VBAT_REG > VBAT >

VBAT_LOW; VIN = 5 V

ICHG_CC > 40 mA

-6

%ICHG_CC

ICHG_CC Accuracy

ICHG_CC ≤ 40 mA

-12

+12

ΔVBAT_REG (HOT)

VBAT_REG reduction in warm

condition

T3 < VTS < T4 in TS

enabled

120

140

160

RDS_ON_VIN_TO_ASYS [1]

RDS_ON between VIN and

ASYS

VIN = 5 V at 50 mA

250

360

mΩ

RDS_ON_ASYS_TO_VBAT [1]

RDS_ON between ASYS and

VBAT

VBAT = 3.8 V at 50 mA

130

175

mΩ

DEAD BATTERY IN PRECHARGE MODE

VBAT_DEAD

Dead battery charge to low

battery charge transition

threshold

[Note: reserve 2-bit MTP

for programmability, 1.

7 V/1.8 V/1.9 V/2.0 V]

1.9

%VBAT_DEAD

VBAT_DEAD accuracy

-4.5

+4.5

tDGL_BAT_DEAD2LOW

Deglitch time from dead

battery charge to low battery

charge transition

µs

ICHG_DEAD

I2C programmable,1 mA/

step

%ICHG_DEAD

ICHG_DEAD accuracy

VBAT =1 V, ICHG_DEAD

=4 mA

-12

+12

LOW BATTERY IN PRECHARGE MODE

VBAT_LOW

Precharge to fast-charge

transition threshold

[Note: reserve 2-bit MTP

for programmability, 2.

3 V/2.4 V/2.5 V/2.6 V]

2.5

%VBAT_LOW

VBAT_LOW Accuracy

-3.5

+3.5

tDGL_BAT_LOW2CC

Deglitch time on pre-charge

to fast-charge transition

µs

ICHG_LOW

I2C programmable,1 mA/

step

%ICHG_LOW

ICHG_LOW Accuracy

VBAT =2 V, ICHG_DEAD

=8 mA

-10

+10

tDGL_BAT_CC2LOW

Deglitch time from fast-

charge to low battery charge

transition

TOP-OFF MODE

Table 81. EC table for Linear Charger

PCA9420

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

Product data sheet

Rev. 4.0 — 28 November 2022

66 / 87

PCA9420 Datasheet(PDF) 66 Page - NXP Semiconductors

PCA9420 Datasheet(HTML) 66 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87

Datasheet Download

Link URL