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Part Name
Description
AAT3688 View Datasheet(PDF) - Advanced Analogic Technologies
Part Name
Description
Manufacturer
AAT3688
USB Port Lithium-Ion/Polymer Battery Charger
Advanced Analogic Technologies
AAT3688 Datasheet PDF : 21 Pages
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BatteryManager
TM
System Operation Flow Chart
PRODUCT DATASHEET
AAT3688
USB Port Lithium-Ion/Polymer Battery Charger
Switch
On
Sleep
Mode
No
UVLO
Yes
V
P
> V
UVLO
USB
Power
Power On
Reset
USB Low
Current Loop
USB High
Current Loop
Fault Conditions
Yes
Monitor
OV, OT
No
Shut Down
Mode
Yes
Battery
No
Temperature Monitor
Battery
V
TS1
< TS < V
TS2
Temp. Fault
0
USB Detect
USBSEL= ?
1
USB Voltage
Regulation
Enable
No
Recharge Test
V
RCH
> V
BAT
Yes
Yes
Low Current
Preconditioning Test
Conditioning
V
MIN
> V
BAT
Charge
No
Yes
Current Phase Test
V
EOC
> V
BAT
Current
Charging
Mode
No
Yes
Voltage Phase Test
I
BAT
> I
TERM
No
Charge
Completed
Voltage
Charging
Mode
No
USB Voltage Test
V
USB
< 4.5V
Yes
USB
Loop Current
Reduction in USB
Charging Mode
12
www.analogictech.com
3688.2007.12.1.6
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