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RT9470 Datasheet(PDF) 4 Page - Richtek Technology Corporation

Part # RT9470
Description  3A Single Cell Switching Battery Charger
PDF  50 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9470 Datasheet(HTML) 4 Page - Richtek Technology Corporation

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RT9470/D
Copyright © 2023 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
DS9470/D-02
October 2023
4
Pin No.
Pin Name
I/O
Pin Function
RT9470
RT9470D
F3
F3
BATSNS
AI
Battery voltage sensing pin for charge current regulation.
The BATNS pin must be connected to the battery pack
as close as possible.
F4
F4
INT
DO
Open-drain active low interrupt output. Connect the INT
to a logic rail through 10k
 resistor. The INT pin sends
active low pulse to host to report charger device status
and fault.
F5
F5
SCL
DI
I2C interface clock. Connect SCL to the logic rail through
a 10k
 resistor.
Functional Block Diagram
RT9470 Functional Block Diagram
VBUS
Q1
BTST
GND
SW
Converter
Control
REGN
REGN
PMID
REGN
LDO
Q1
Control
Q2
Q3
Digital
Control
BAT
SYS
Q4
Power Path
Control
QON
Power
Select
BAT
PMID
Protection
Input
Source
Detection
I
2
C
Interface
SDA
SCL
INT
CE
JEITA
Control
STAT
REGN
TS
Q4
Switching-
well Control
PSEL
TS Sensing
VDDA
PG
Sensing
VAC
BATSNS



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