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RT9451 датащи(PDF) 36 Page - Richtek Technology Corporation

номер детали RT9451
подробное описание детали  Switch-Mode Single Cell Li-ion Battery Charger with USB OTG
PDF  37 Pages
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производитель  RICHTEK [Richtek Technology Corporation]
домашняя страница  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9451 датащи(HTML) 36 Page - Richtek Technology Corporation

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RT9451
36
DS9451-00
September 2013
www.richtek.com
©
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Layout Considerations
Place the input and output capacitors as close to the input
and output pins as possible.
Keep the main power traces as wide and short as
possible.
The output inductor and bootstrap capacitor should be
placed close to the chip and LX pins.
To optimize current sense accuracy, connect the traces
to RSENSE with Kelvin sense connection.
Figure 10. PCB Layout Guide
VIN
VIN
VIN
VIN
PGND
PGND
PGND
PGND
VIO
INT
VDDP
GND
DP
BOOT
DM
MID_LDO
33
24
23
22
21
1
2
3
4
10 11 12 13
31 30 29 28
20
19
5
6
9
32
14
27
18
7
15
26
16
25
17
8
GND
To System
To Battery
GND
GND
To optimize current and
voltage sense accuracy,
connect the traces to pins
with Kelvin sense connection.
Keep the main power
traces as wide and
short as possible.
Keep the main power traces
as wide and short as possible.
The output inductor and bootstrap capacitor
should be placed close to the chip And LX pins.
Keep the main power traces
as wide and short as possible.
Place the input and
output capacitors as
close to the input
and output pins as
possible.



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