RT9481 Datasheet, PDF (40/41 Pages) Richtek Technology Corporation – Easy to Use Power Bank Solution

RT9481
Register
b[7]
Function
b[6]
b[5]
b[4]
Address
(MSB)
Meaning WDT_ EN Reversed
WDT
WDT_
0X2B
CTRL
Default
0
0
0
0
Read/
R/W
R/W
R/W
R/W
Write
WDT_EN
WDT enable control
0 : WDT disable (default)
1 : WDT enable
WDT
Watch Dog Timer, it will reset whole chip when time out
00 : 8 second (default)
01 : 16 second
10 : 32 second
11 : 64 second
WDT_REFRESH
Watch Dog Timer refresh
0 : No action
1 : Refresh watch dog timer
b[3]
Reversed
0
R/W
b[2]
b[1]
Reversed Reversed
0
0
b[0]
(LSB)
WDT_
REFR
ESH
0
R/W
R/W
W
Register
b[7]
b[0]
Function
b[6]
b[5]
b[4]
b[3]
b[2]
b[1]
Address
(MSB)
(LSB)
Meaning Reversed Reversed
LDSW _ILIM_FUSE
LDSW _
0X2C
ILIM_FUSE
Default
0
0
0
0
0
0
0
0
Read
R
R
R
R
R
R
R
R
LDSW _ILIM_FUSE
Report the fuse setting of LDSW current regulation
Register
b[7]
b[0]
Function
b[6]
b[5]
b[4]
b[3]
b[2]
b[1]
Address
(MSB)
(LSB)
Meaning
LDSW _ILIM_LVL
LDSW _ILIM_CTRL
LDSW _
0X2D
ILIM_CTRL
Default
0
Read/
R/W
Write
1
1
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LDSW _ILIM_LVL
LDSW current regulation
00 : Min = 1.0A, TYP = 2.0A, MAX = 3.0A
01 : Min = 1.5A, TYP = 2.5A, MAX = 3.5A
10 : Min = 2.0A, TYP = 3.0A, MAX = 4.0A
LDSW _ILIM_CTRL
LDSW current regulation setting
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DS9481-00 June 2015