wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 285
wm8351
Manufacturer Part Number
wm8351
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8351.pdf
(328 pages)
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Production Data
REGISTER
Register A9h Battery Charger Control 2
w
ADDRESS
BIT
5:4
3:0
7
6
CHG_MASK_WALL_FB
CHG_TRICKLE_SEL
CHG_VSEL[1:0]
CHG_ISEL[3:0]
LABEL
DEFAULT
0110
00
0
0
0100 = 180min
0101 = 210min
0110 = 240min
0111 = 270min
1000 = 300min
1001 = 330min
1010 = 360min
1011 = 390min
1100 = 420min
1101 = 450min
1110 = 480min
1111 = 510min
Reading from this field indicates the charge
time remaining:
Time remaining = CHG_TIME * 2048s
Protected by security key. Default held in metal
mask.
Selects whether to ignore the WALL_FB signal
when charging from LINE.
0 = Does not mask the WALL_FB signal
1 = Mask the WALL_FB signal.
Note: Care needs to be taken when using this
bit.
Protected by security key. Reset by state
machine.
Selects the trickle charge current.
0 = Set the trickle charge current to 50mA.
1 = Set the trickle charge current to 100mA.
Protected by security key.
Battery charge voltage:
00 = 4.05V
01 = 4.1V
10 = 4.15V
11 = 4.2V
Protected by security key.
Fast charge current limit setting.
0000 = off
0001 = 50mA
0010 = 100mA
… (50mA steps)
1111 = 750mA
Note: Do not set the charger to be more than
400mA when USB powered.
Protected by security key.
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
WM8351
285
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