AAT2557 AnalogicTech, AAT2557 Datasheet - Page 15

• Manufacturer Part Number: AAT2557
• Description: 500mA Battery Charger and 300mA LDO Regulator for Portable Systems
• Manufacturer: AnalogicTech

Battery Charging System Operation Flow Chart
2557.2007.06.1.0
No
Recharge Test
V
Shut Down
RCH
No
> V
BAT
Yes
Yes
Current Phase Test
Charge Completed
Voltage Phase Test
V
Preconditioning
Fault Conditions
BAT_EOC
V
Power Input
V
I
ADP
Monitoring
BAT
MIN
Voltage
Enable
OV, OT
Test
Yes
Yes
No
No
No
No
> V
> I
> V
> V
TERM
UVLO
BAT
BAT
LDO Regulator for Portable Systems
500mA Battery Charger and 300mA
Yes
Yes
Yes
(Trickle Charge)
Preconditioning
Current Charge
Voltage Charge
Constant
Constant
Mode
Mode
Power On Reset
Charge
Control
AAT2557
15