AAT3688AIWP-4.2-4-T1 AnalogicTech, AAT3688AIWP-4.2-4-T1 Datasheet - Page 12

• Manufacturer Part Number: AAT3688AIWP-4.2-4-T1
• Description: USB Port Lithium-Ion/Polymer Battery Charger
• Manufacturer: AnalogicTech

System Operation Flow Chart
12
12
BatteryManager
BatteryManager
No
Recharge Test
TM
TM
V
RCH
> V
BAT
Sleep
Mode
Yes
Yes
Preconditioning Test
Temperature Monitor
Current Phase Test
Voltage Phase Test
V
Fault Conditions
TS1
V
V
Power On
I
No
No
BAT
No
Battery
EOC
Completed
< TS < V
OV, OT
MIN
w w w . a n a l o g i c t e c h . c o m
w w w . a n a l o g i c t e c h . c o m
Monitor
Reset
Charge
No
> I
> V
> V
No
TERM
BAT
BAT
TS2
USB Port Lithium-Ion/Polymer Battery Charger
USB Port Lithium-Ion/Polymer Battery Charger
V
P
UVLO
Switch
Yes
Yes
Yes
> V
No
On
Yes
UVLO
Current Loop
Current Loop
USB High
USB Low
Conditioning
Temp. Fault
Low Current
Shut Down
Charging
Charging
Battery
Charge
Current
Voltage
Mode
Mode
Mode
Yes
0
1
USBSEL= ?
USB Detect
Power
USB
PRODUCT DATASHEET
PRODUCT DATASHEET
USB Voltage Test
Reduction in USB
Charging Mode
USB Voltage
Loop Current
Regulation
V
USB
Enable
USB
< 4.5V
Yes
AAT3688
AAT3688
No
3688.2007.12.1.6
3688.2007.12.1.6