AAT3697IWP-4.2-T1 Advanced Analog Technology, Inc., AAT3697IWP-4.2-T1 Datasheet - Page 11

• Manufacturer Part Number: AAT3697IWP-4.2-T1
• Description: 2A Lithium-Ion/Polymer Battery Charger
• Manufacturer: Advanced Analog Technology, Inc.

System Operation Flow Chart
Application Information
Adapter Power Input
Constant current charge levels up to 2.0A may be
programmed by the user when powered from a suf-
ficient input power source. The AAT3697 will oper-
ate from the adapter input over a 4.0V to 5.5V
range.
3697.2007.02.1.1
No
Yes
BAT_EOC
No
No
No
TERM
No
2A Lithium-Ion/Polymer Battery Charger
Yes
Yes
Yes
No
Yes
The constant current fast charge current for the
adapter input is set by the R
between the ADPSET pin and ground. Refer to
Table 1 for recommended R
constant current charge level. The presence of volt-
age on the adapter input is indicated by the ADPP#
pin function. This indicator pin uses an internal open
drain device that will pull the ADPP# pin low when
voltage is detected on the ADP pin. The precise
Yes
Timing
Enable
Expire
ADP
No
Set
No
Yes
SET
Yes
No
SET
values for a desired
resistor connected
AAT3697
11