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PCA9420 Datasheet(PDF) 37 Page - NXP Semiconductors

Part # PCA9420
Description  Power management IC for low-power microcontroller applications
PDF  87 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA9420 Datasheet(HTML) 37 Page - NXP Semiconductors

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NXP Semiconductors
PCA9420
Power management IC for low-power microcontroller applications
Bit
Symbol
Default value Type
Function
7
RSVD
0
R/W
Reserved bit
6
RSVD
0
R/W
Reserved bit
5
4
3
2
1
0
ICHG_CC
[5:0]
001000
R/W
Program a fast charge current
Note: The current default value for ICHG_CC [5:0] is set at 40 mA,
but it should be MTP programmable.
Table 23. CHG_CNTL1 register bit description
00h: 0 mA
10h: 80 mA
20h: 160 mA
30h: 240 mA
01h: 5 mA
11h: 85 mA
21h: 165 mA
31h: 245 mA
02h: 10 mA
12h: 90 mA
22h: 170 mA
32h: 250 mA
03h: 15 mA
13h: 95 mA
23h: 175 mA
33h: 255 mA
04h: 20 mA
14h: 100 mA
24h: 180 mA
34h: 260 mA
05h: 25 mA
15h: 105 mA
25h: 185 mA
35h: 265 mA
06h: 30 mA
16h: 110 mA
26h: 190 mA
36h: 270 mA
07h: 35 mA
17h: 115 mA
27h: 195 mA
37h: 275 mA
08h: 40 mA
(default)
18h: 120 mA
28h: 200 mA
38h: 280 mA
09h: 45 mA
19h: 125 mA
29h: 205 mA
39h: 285 mA
0Ah: 50 mA
1Ah: 130 mA
2Ah: 210 mA
3Ah: 290 mA
0Bh: 55 mA
1Bh: 135 mA
2Bh: 215 mA
3Bh: 295 mA
0Ch: 60 mA
1Ch: 140 mA
2Ch: 220 mA
3Ch: 300 mA
0Dh: 65 mA
1Dh: 145 mA
2Dh: 225 mA
3Dh: 305 mA
0Eh: 70 mA
1Eh: 150 mA
2Eh: 230 mA
3Eh: 310 mA
0Fh: 75 mA
1Fh: 155 mA
2Fh: 235 mA
3Fh: 315 mA
Table 24. Linear battery charger constant current (CC) setting
9.5.16 Battery charger control_2 (CHG_CTL2, address 12h)
This register stores the present status of chip, part 2, linear battery charger related
status. This is a READ AND WRITE register,
and this register is locked by
CHG_LOCK.
Bit
Symbol
Default value Type
Function
7
RSVD
0
R/W
Reserved bit
6
RSVD
0
R/W
Reserved bit
Table 25. CHG_CNTL2 register bit description
PCA9420
All information provided in this document is subject to legal disclaimers.
© 2022 NXP B.V. All rights reserved.
Product data sheet
Rev. 4.0 — 28 November 2022
37 / 87



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