AAT3697IWP-4.2-T1(2007) Ver la hoja de datos (PDF) - Advanced Analogic Technologies

Número de pieza

componentes Descripción

Fabricante

AAT3697IWP-4.2-T1
(Rev.:2007)

2A Lithium-Ion/Polymer Battery Charger

Advanced Analogic Technologies 

AAT3697

2A Lithium-Ion/Polymer Battery Charger

System Operation Flow Chart

Yes

Yes

ADP

No

No

Enable

No

Timing

Yes

Yes

No

Yes

Expire

No

Yes

Set

No

No

Yes

BAT_EOC

No

Yes

TERM

No

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

The constant current fast charge current for the

adapter input is set by the RSET resistor connected

between the ADPSET pin and ground. Refer to

Table 1 for recommended RSET values for a desired

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

11

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