AAT3685IWP-4.2-1-T1 Advanced Analog Technology, Inc., AAT3685IWP-4.2-1-T1 Datasheet - Page 12

• Manufacturer Part Number: AAT3685IWP-4.2-1-T1
• Description: Lithium-Ion/Polymer Battery Charger
• Manufacturer: Advanced Analog Technology, Inc.

System Operation Flow Chart
12
No
Recharge Test
V
RCH
> V
BAT
Sleep
Mode
Yes
Yes
Preconditioning Test
Current Phase Test
Voltage Phase Test
Temperature Monitor
Conditions Monitor
V
TS1
Completed
V
V
Power On
I
BAT
No
EOC
No
No
Charge
MIN
OV, OT
Battery
< TS < V
Reset
Fault
No
> I
> V
> V
No
TERM
BAT
BAT
TS2
V
P
Switch
UVLO
> V
Yes
Yes
Yes
On
No
Yes
UVLO
Current Loop
Current Loop
Conditioning
Low Current
Temp. Fault
Shut Down
SETH
SETL
Lithium-Ion/Polymer Battery Charger
Charging
Charging
Charge
Battery
Current
Voltage
Mode
Mode
Mode
Yes
1
0
Input Power
PWRSEL= ?
Input Detect
V
ADP/USB
Input Voltage
Voltage Test
Regulation
Reduction
Charge
Current
Enable
< V
Port
ADP/USB_CHR
Yes
No
AAT3685
3685.2006.10.1.3