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ISL9241 Operation Modes Application Note
Table 3. Transitioning Between Bypass Mode and Charging and Reverse Turbo Boost States (Cont.)
Transition
From State
G
Bypass
H
Bypass +
CHRG
I
RTB +
CHRG
J
Bypass +
CHRG
R16AN0002EU0300 Rev.3.00
Jan 6, 2022
Step
To State
Number
Bypass+
1
Set MinSysVoltage to a
CHRG
non-zero value to enable
trickle charging
2
Set charge current limit to
a non-zero value to allow
charging
3
Set MaxSysVoltage
register to full battery
charge voltage
RTB+
1
Reduce system load
CHRG
below ACLIM
2
Enable Reverse Turbo
Boost function
Bypass+
1
Reduce system load
CHRG
below ACLIM
2
Disable reverse turbo
boost function
Bypass
1
Disable switching
2
Disable fast charging
3
Disable trickle charging
Function Description
Value
Register Name
(Decimal)
MinSysVoltage
Battery
specific
ChargeCurrentLimit
Battery
specific
MaxSysVoltage
Battery
specific
Control 0<0>
Control 0<0>
MaxSysVoltage
ChargeCurrentLimit
MinSysVoltage
Register
Address
0x3E
0x14
0x15
1
0x39
0
0x39
0
0x15
0
0x14
0
0x3E
Page 11
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