AAT3681AIJS-4.2-2-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT3681AIJS-4.2-2-T1 Datasheet - Page 14

• Manufacturer Part Number: AAT3681AIJS-4.2-2-T1
• Description: 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Printed Circuit Board Layout
Considerations
For the best results, it is recommended to physi-
cally place the battery pack as close as possible
14
Figure 5: AAT3681A Evaluation Board
V
IN(ADP)
Top Layer.
C1
10μF
Figure 7: AAT3681A Evaluation Board Schematic Diagram.
JP2
R8
8.06K
JP1
0Ω
1
2
3
4
U1 (SC70JW-8)
EN
ISET
BAT
ADP
D1
Lithium-Ion/Polymer Battery Charger
AAT3681A
RED LED
to the AAT3681A BAT pin. To minimize voltage
drops on the PCB, keep the high current carrying
traces adequately wide. Refer to the AAT3681A
evaluation board for a good layout example (see
Figures 5 and 6).
STAT
GND
GND
GND
500mA USB Port or AC Adapter
Figure 6: AAT3681A Evaluation Board
8
7
6
5
R1
1K
Bottom Layer.
V
BAT
C2
2.2μF
AAT3681A
3681A.2007.10.1.2