wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 286
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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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WM8351
REGISTER
Register AAh Battery Charger Control 3
w
REGISTER
ADDRESS
ADDRESS
Current Sink
R170 (AAh)
R172 (ACh)
Control 3
Charger
Driver A
Battery
BIT
BIT
6:5
5:0
7
15
12
CHG_THROTTLE_T[1:0]
CS1_HIB_MODE
CS1_ISEL[5:0]
CS1_ENA
LABEL
CHG_FRC
LABEL
DEFAULT
00_0000
0
0
DEFAULT
00
0
Current Sink 1 enable (ISINKA pin)
0 = disabled
1 = enabled
Reset by state machine.
Current Sink 1 behaviour in Hibernate mode
0 = disable current sink in Hibernate
1 = leave current sink as in Active
Reset by state machine.
ISINKA current
00_0000 = 4.05uA
00_0001 = 4.85uA
00_0010 = 5.64uA
00_0011 = 6.83uA
00_0100 = 8.02uA
00_0101 = 9.6uA
00_0110 = 11.2uA
00_0111 = 13.5uA
00_1000 = 16.1uA
00_1001 = 19.3uA
00_1010 = 22.4uA
00_1011 = 27.2uA
00_1100 = 32uA
00_1101 = 38.3uA
00_1110 = 44.7uA
00_1111 = 54.1uA
01_0000 = 64.1uA
01_0001 = 76.8uA
01_0010 = 89.5uA
01_0011 = 109uA
01_0100 = 128uA
01_0101 = 153uA
01_0110 = 178uA
01_0111 = 216uA
01_1000 = 256uA
01_1001 = 307uA
Allows trickle-charging to be forced even if the
battery voltage is above the default threshold
0 = only trickle-charge if the battery voltage is
below CHG_VSEL-100mV
1 = always trickle-charge
Protected by security key. Reset by state
machine.
Time between steps when the charger throttles
back due to USB current limit.
00 = 8us
01 = 16us
10 = 32us
11 = 128us
Protected by security key.
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
REFER TO
Production Data
286
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