AAT3681AIJS-4.2-2-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT3681AIJS-4.2-2-T1 Datasheet - Page 10

• Manufacturer Part Number: AAT3681AIJS-4.2-2-T1
• Description: 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

System Operation Flow Chart
10
No
Recharge Test
V
Shut Down
RCH
No
> V
BAT
No (AAT3681A-1)
Yes
Yes
Current Phase Test
Charge Completed
Voltage Phase Test
V
Preconditioning
Fault Conditions
BAT_EOC
Power Input
V
V
I
BAT
Monitoring
IN
MIN
Voltage
Enable
OV, OT
Test
Yes
> V
Yes
No
No
> I
> V
UVLO
> V
TERM
No (AAT3681A,
AAT3681A-1,
AAT3681A-2)
No (AAT3681A,
AAT3681A-2,
AAT3681A-3)
BAT
BAT
Lithium-Ion/Polymer Battery Charger
(AAT3681A-3)
Yes
No
Yes
Yes
500mA USB Port or AC Adapter
(Trickle Charge)
Preconditioning
Current Charge
Voltage Charge
Constant
Constant
Mode
Mode
Power On Reset
AAT3681A
Charge
Control
3681A.2007.10.1.2