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RT9481 Datasheet(PDF) 3 Page - Richtek Technology Corporation

Part # RT9481
Description  Easy to Use Power Bank Solution
PDF  41 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9481 Datasheet(HTML) 3 Page - Richtek Technology Corporation

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RT9481
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS9481-00 June 2015
www.richtek.com
3
Functional Pin Description
Pin No.
Pin Name
Pin Function
1, 2
USBOUT
USB Power Output.
3
VHMID
Internal Use Only.
4, 5
VBUS
VBUS Power Supply.
6
D-
D- Input for Adapter Detection.
7
D+
D+ Input for Adapter Detection.
8
ISENSP
Charging Current Sensing Positive Node.
9
ISENSN
Charging Current Sensing Negative Node and Connect to Battery Plus
Terminal.
10
TS
Battery Temperature Detection Pin.
11
DM
DCP Controller DM Output.
12
DP
DCP Controller DP Output.
13
VDD28V
Internal Use LDO Output.
14
VDDA
Internal Power for Analog Blocks, Put 1
F to GND.
15,
25 (Exposed Pad)
AGND
Analog Ground Node. The exposed pad must be soldered to a large PCB and
connected to AGND for maximum power dissipation.
16
INT
Interrupter Signal. Connect an external pull-up resistor.
17
SDA
Data Input and Output for I2C Serial Port. Connect an external pull-up resistor.
18
SCL
Clock Input for I2C Serial Port. Connect an external pull-up resistor.
19, 20
PGND
Power Ground for Switching Charger.
21, 22
LX
Internal Switch Node to Output Inductor Connection.
23
VMID
Connection Point Between Reverse Blocking and High-Side.
24
BOOT
Bootstrap Power Node for Switching Charger.



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