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RT9458WSC bảng dữ liệu(PDF) 2 Page - Richtek Technology Corporation

tên linh kiện RT9458WSC
Giải thích chi tiết về linh kiện  Switch-Mode Single Cell Li-Ion Battery Charger
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nhà sản xuất  RICHTEK [Richtek Technology Corporation]
Trang chủ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9458WSC bảng dữ liệu(HTML) 2 Page - Richtek Technology Corporation

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2
DS9458-02
February 2017
www.richtek.com
RT9458
©
Copyright
2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Functional Pin Description
Pin No.
Pin Name
Pin Function
A1, A2, A3
VIN
Power input.
A4
IRQ
IRQ output node. Open-drain output, connect a 10k
 pull up resistor.
A5
BATS
Feedback voltage input for battery.
B1, B2, B3
VMID
Connection point between reverse blocking MOSFET and high-side MOSFET.
B4
OTG
Boost mode control input or current regulation setting for average input
current.
B5
ISNSIN
Charge current sense input.
C1, C2, C3
LX
Switch node.
C4
AGND
Analog ground.
C5
SCL
Clock input for I2C. Open-drain output, connect a 10k
 pull-up resistor.
D1, D2, D3
PGND
Power ground for switching charger.
D4
BOOT
Bootstrap supply for high-side MOSFET. Connect a capacitor between BOOT
and LX.
D5
SDA
Data input for I2C. Open-drain output, connect a 10k
 pull-up resistor.
Ordering Information
Note :
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Pin Configuration
(TOP VIEW)
WL-CSP-20B 2.1x1.87 (BSC)
RT9458
Package Type
WSC : WL-CSP-20B 2.1x1.87 (BSC)
IRQ
VIN
VIN
VIN
BATS
VMID
OTG
ISNSIN
VMID
VMID
SCL
LX
LX
AGND
PGND
SDA
PGND
BOOT
PGND
LX
A3
A4
A5
A1
A2
B3
B4
B5
B1
B2
C3
C5
C4
C1
C2
D3
D4
D5
D1
D2



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