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DA9155M Datasheet(PDF) 34 Page - Dialog Semiconductor

No. de pieza DA9155M
Descripción Electrónicos  2.5 A Companion Charger for rapid charging
PDF  36 Pages
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Fabricante Electrónico  DIALOG [Dialog Semiconductor]
Página de inicio  http://www.dialog-semiconductor.com/
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DA9155M Datasheet(HTML) 34 Page - Dialog Semiconductor

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DA9155M
2.5 A Companion Charger for rapid charging
12 Application information
12.1 PCB layout
EN
nIRQ
SDA
SCL
NC0
AGND
AGND
TP
NC1
AGND
AGND
VDDIO
AGND
AGND
AGND
VBAT
PGND
VLX
VLX
VLX
BOOT
PVDD
AVDD
VBATN
VIN
PGND
VLX
VLX
VLX
VIN
1005
1005
Power ground
Power ground
Quiet ground
112
112
112
112
112
112
112
112
112
Figure 21: Preliminary PCB layout for DA9155M (component sizes in mm)
It is recommended to create a separate quiet ground for the AVDD capacitor connection. The PCB
layout should ensure this ground is kept quiet, for example, they should be separated from the main
noisy power ground return path. The quiet ground can then be connected to the main ground at the
ground plane.
12.2 Component selection
12.2.1
Capacitors
Ref
Value
Size code
[mm]
Temp.
Char.
Tol.
Rating
Part
Buck input
bypass
10 µF
1608
X5R
±20%
25 V
CL10A106MA8NRNC
10 µF
1608
X5R
±20%
25 V
Murata GRM188R61E106MA73
Buck output
bypass
22 µF
1608
X5R
±20%
6.3 V
Murata GRM188R60J226MEA0
10 µF
1608
X5R
±20%
6.3 V
GRM188R60J106ME84
Datasheet
v3.05
22-July-2016
CFR0011-120-00 Rev 5
34 of 36
© 2016 Dialog Semiconductor



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