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AAT3673 Datasheet, PDF (16/28 Pages) Skyworks Solutions Inc. – 1.6A Dynamic Battery Charger and Power Manager
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DATA SHEET
AAT3673
1.6A Dynamic Battery Charger and Power Manager
Control Inputs
Pass Devices
EN
ENO
ENBAT
ADP - OUT
ADP - BAT
BAT - OUT
1
1
1
OFF
OFF
OFF
0
1
1
OFF
ON
OFF
1
0
1
OFF
OFF
OFF
0
0
1
ON
ON
OFF
1
1
0
OFF
OFF
ON
0
1
0
OFF
ON
ON
1
0
0
OFF
OFF
ON
0
0
0
ON
ON
ON
Table 1: AAT3673-1/-4 and AAT3673-2/-5 Battery and Adapter Dynamic Path Control Table.
EN1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
Control Inputs
EN2
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
ENO
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
ENBAT
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
ADP-OUT
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
Pass Devices
ADP-BAT
OFF
ON
ON
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
Table 2: AAT3673-3/-6 Battery and Adapter Dynamic Path Control Table.
BAT-OUT
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
End of Charge Cycle Termination
and Recharge Sequence
When the charge current drops to the user programmed
charge termination current at the end of the constant
voltage charging phase, the device terminates charging,
enables the recharge control circuit and enters the sleep
state. The charger will remain in the sleep state until the
battery voltage decreases to a level below the battery
recharge voltage threshold (VRCH). The charge termina-
tion current is programmed via the RTERM resistor which
is connected between the TERM pin and ground. Use the
values listed in Table 3 to set the desired charge termi-
nation current. The programmed charge termination
current will remain at the same set level regardless of
which fast charge ADP, USBH or USBL constant current
mode is selected.
ITERM (mA)
320
174
125
95
77
64
58
50
49
42
37
RTERM (kΩ)
11.0
21.0
30.9
41.2
51.1
61.9
71.5
80.6
90.9
100.0
110.0
Table 3: Charge Termination Current
Programming Resistor Values.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
16
201881B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012
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