Datasheet

ADP5061 Data Sheet
Rev. C | Page 14 of 44
THEORY OF OPERATION
SUMMARY OF OPERATION MODES
Table 7. Summary of the ADP5061 Operation Modes
Mode Name
VINx
Condition
Battery Condition
Trickle
Charge
LDO
FET
State
Battery
Isolation
FET
System
Voltage
ISO_Sx
Additional
Conditions
1
IC Off, Standby 0 V Any battery condition Off Off On/Off Battery voltage
or 0 V
Disable IC1
IC Off, Suspend 5 V Any battery condition Off Off On Battery voltage Disable IC1
LDO Mode Off, Isolation
FET On
5 V Any battery condition Off Off On Battery voltage Disable LDO and
enable isolation FET
LDO Mode Off, Isolation
FET Off (System Off)
5 V Any battery condition Off Off Off 0 V Enable battery
charging
LDO Mode, Charger Off 5 V Any battery condition Off LDO Off 5.0 V Enable battery
charging
Trickle Charge Mode 5 V Battery < V
TRK_DEAD
On LDO Off 5.0 V Enable battery
charging
Weak Charge Mode 5 V V
TRK_DEAD
≤ battery < V
WEAK
On CHG CHG 3.8 V Enable battery
charging
Fast Charge Mode 5 V Battery ≥ V
WEAK
Off CHG CHG 3.8 V (min) Enable battery
charging
Charge Mode, No Battery 5 V Open Off LDO Off 5.0 V Enable battery
charging
Charge Mode, Battery
(ISO_Bx) Short
5 V Short On LDO Off 5.0 V Enable battery
charging
1
See Table 8 for details.
Table 8. Operation Mode Controls
Pin Configuration
Equivalent I
2
C
Address, Data Description
Enable Battery Charging 0x07, D0 Low = all charging modes disabled (fast, weak, trickle).
High = all charging modes enabled (fast, weak, trickle).
Disable IC1 0x07, D6
Disable IC1
VINx
1
Supply
Connected
LDO_FET ISO_FET
Low No Off On
Yes
CHG
CHG
High No
2
Off On
Yes Off On
Disable LDO and Enable Isolation FET 0x07, D3, D0 Low = LDO enabled.
High = LDO disabled. In addition, when EN_CHG = low, the battery
isolation FET is on; when EN_CHG = high, the battery isolation FET is
off.
1
When disable IC1 mode is active and the VINx supply is connected, the supply voltage level must fulfill the following condition: V
ISO_Bx
< V
VINx
< 5.5 V.
2
When disable IC1 mode is active, the back gate of the LDO FET is not controlled. If the VINx pins are not connected, the voltage at VINx is V
ISO_Bx
− V
f
(V
f
= forward
voltage of the LDO FET body diode).