Analog Devices ADP5062CP Evaluation Board ADP5062CP-EVALZ ADP5062CP-EVALZ データシート
製品コード
ADP5062CP-EVALZ
Data Sheet
ADP5062
Rev. B | Page 15 of 44
THEORY OF OPERATION
SUMMARY OF OPERATION MODES
Table 7. Summary of the
Operation Modes
Mode Name
VINx
Condition
Condition
Battery Condition
Trickle
Charge
Charge
LDO FET
State
State
Battery
Isolation FET
Isolation FET
System Voltage
ISO_Sx
ISO_Sx
Additional Conditions
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
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 (minimum)
Enable battery charging
Charge Mode, No Battery
5 V
Open
Off
LDO
Off
5.0 V
Enable battery charging
Charge Mode, Battery
(ISO_Bx) Shorted
5 V
Shorted
On
LDO
Off
5.0 V
Enable battery charging
1
See Table 8 for details.
Table 8. Operation Mode Controls
Pin Configuration
DIG_IOx
Equivalent I
2
C
Address, Data Bit(s) Description
Enable Battery Charging
DIG_IO3
0x07, D0
Low = all charging modes disabled (fast, weak, trickle).
High = all charging modes enabled (fast, weak, trickle).
High = all charging modes enabled (fast, weak, trickle).
Disable IC1
DIG_IO2
0x07, D6
Disable IC1
VINx
Supply
Connected
LDO_FET ISO_FET
Low
No
Off
On
Yes
CHG
CHG
High
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
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.
isolation FET is off.
1
When disable IC1 mode is active, the VINx supply must always be connected and the supply voltage level must fulfill the following condition: V
ISO_Bx
< 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 to any voltage supply, the body diode of the LDO
FET can become forward biased and the voltage at VINx is V
ISO_Bx
– V
F
(V
F
is the forward voltage of the LDO FET body diode).