WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 284
WM8351CGEB/RV
Manufacturer Part Number
WM8351CGEB/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8351CGEBRV.pdf
(330 pages)
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REGISTER
WM8351
ADDRESS
w
R168 (A8h)
Control 1
Charger
Battery
12:10
BIT
15
9
8
7
6
5
4
CHG_TRICKLE_TEMP_CHOKE
CHG_TRICKLE_USB_CHOKE
CHG_FAST_USB_THROTTLE
CHG_EOC_SEL[2:0]
CHG_RECOVER_T
CHG_END_ACT
CHG_FAST
CHG_ENA
LABEL
DEFAULT
000
1
0
0
0
0
0
0
CHG_ENA bit selects battery charger
current control
0 = Set battery charger current to zero
1 = Enable battery charge control
Protected by security key. Reset by state
machine. Default held in metal mask.
Selects what the end of charge current
should be set to
000 = 20mA
001 = 30mA
...
111 = 90mA
Protected by security key.
Enable trickle charge temperature
choking
0 = disable
1 = enable
Protected by security key. Reset by state
machine.
Enable USB current choking in trickle
charge
0 = disable
1 = enable
Protected by security key. Reset by state
machine.
Time constant adjust for charger choke
recovery (step-up):
0 = Step-up time constant is 180us
(allows faster recovery between
processor wakeups)
1 = Step-up time constant is >20ms
(outside audio band)
Protected by security key. Reset by state
machine.
Action to take when charging ends:
0 = Set charge current to 0
1 = Do nothing (leave charger on till
timeout)
Protected by security key. Reset by state
machine.
Enable fast charging.
0 = Fast charging cannot take place.
1 = Enable fast charging (will not start
until valid charging conditions are met).
Note: This register is held low and can
only be written to once the fast charge
ready signal has gone high.
Protected by security key. Reset by state
machine. Default held in metal mask.
Enable USB current throttling in fast
charge:
0 = Don't do any current throttling when
fast charging.
1 = Do current throttle while fast
charging.
(10mA steps)
DESCRIPTION
PD, April 2012, Rev 4.5
REFER TO
Production Data
284
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