AAT2550_08 Datasheet, PDF (27/34 Pages) Advanced Analogic Technologies – Total Power Solution for Portable Applications

SystemPower^TM
PRODUCT DATASHEET
AAT2550178
Total Power Solution for Portable Applications
VIN
GND
C6
GND
120μF
(opt)
C4
10μF
R9
59k
GND
R7
59k
C5
10μF
EnVoB
3
2
1
EnVoA
1
2
3
R10
118k
C10
100pF
(opt.)
24 23 22 21 20 19
LX B ^C11
100pF
(opt)
R8
187k
LX A
1 _ENA
LXB ¹⁸
L1 6.8μH
VoB
VoA
L2 4.7μH
C8
4.7μF
2 _LXA
PGND ¹⁷
3 _PGND
U1
CT ¹⁶
C9
4.7μF
CT
Data
SW1
Data Strobe
C14
(open)
4 _DATA AAT2550
5 _N/C
6 _ADPSET
R6
8.06k
STAT1 ¹⁵
STAT2 ¹⁴
TS ¹³
7 8 9 10 11 12
R3 1k
C12
0.1μF
R1
1.5k
R2
R4
1.5k
10k
D1
STAT1
D2
Red
STAT2
Green
C13
10μF
BAT 1
GND 2
TS 3
C3
10μF
1
2
3
Charger Enable
1 ^ADP
2 _GND
Adapter
Battery
VoA, VoB (V)
1.0
1.2
1.5
VoA 1.8
VoB _2.5
3.0
3.3
R8, R10 (Ω)
9.2k
59k
88.7k
118k
187k
237k
267k
L1, L2
2.2μH (CDRH2D14; DCR 75mΩ; 1200mA @ 20°C)
2.2μH (CDRH2D14; DCR 75mΩ; 1200mA @ 20°C)
4.7μH (CDRH2D14; DCR 135mΩ; 1000mA @ 20°C)
4.7μH (CDRH2D14; DCR 135mΩ; 1000mA @ 20°C)
6.8μH (CDRH2D14; DCR 170mΩ; 850mA @ 20°C)
6.8μH (CDRH2D14; DCR 170mΩ; 850mA @ 20°C)
6.8μH (CDRH2D14; DCR 170mΩ; 850mA @ 20°C)
Figure 4: AAT2550 Evaluation Board Schematic.
2550.2008.02.1.3
www.analogictech.com
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