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PCA9420 Datasheet(PDF) 38 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) 38 Page - NXP Semiconductors

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NXP Semiconductors
PCA9420
Power management IC for low-power microcontroller applications
Bit
Symbol
Default value Type
Function
5
4
3
2
1
0
ICHG_TOPOFF
[5:0]
000100b
R/W
Program a top-off current
Note: The current default value for ICHG_TOPOFF [5:0] is set at
4 mA, but it should be MTP programmable.
Table 25. CHG_CNTL2 register bit description...continued
00h: 0mA
10h: 16mA
20h: 32mA
30h: 48mA
01h: 1mA
11h: 17mA
21h: 33mA
31h: 49mA
02h: 2mA
12h: 18mA
22h: 34mA
32h: 50mA
03h: 3mA
13h: 19mA
23h: 35mA
33h: 51mA
04h: 4mA
(default)
14h: 20mA
24h: 36mA
34h: 52mA
05h: 5mA
15h: 21mA
25h: 37mA
35h: 53mA
06h: 6mA
16h: 22mA
26h: 38mA
36h: 54mA
07h: 7mA
17h: 23mA
27h: 39mA
37h: 55mA
08h: 8mA
18h: 24mA
28h: 40mA
38h: 56mA
09h: 9mA
19h: 25mA
29h: 41mA
39h: 57mA
0Ah: 10mA
1Ah: 26mA
2Ah: 42mA
3Ah: 58mA
0Bh: 11mA
1Bh: 27mA
2Bh: 43mA
3Bh: 59mA
0Ch: 12mA
1Ch: 28mA
2Ch: 44mA
3Ch: 60mA
0Dh: 13mA
1Dh: 29mA
2Dh: 45mA
3Dh: 61mA
0Eh: 14mA
1Eh: 30mA
2Eh: 46mA
3Eh: 62mA
0Fh: 15mA
1Fh: 31mA
2Fh: 47mA
3Fh: 63mA
Table 26. Linear battery charger top-off charge current setting
9.5.17 Battery charger control_3 (CHG_CTL3, address 13h)
This register stores the present status of chip, part 3, 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 27. CHG_CNTL3 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
38 / 87



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