RT9483 Datasheet, PDF (1/16 Pages) Richtek Technology Corporation – Easy to Use Power Bank Solution

®
RT9483
Easy to Use Power Bank Solution (EZPBS^TM) Integrated Chip
with One Port Output
General Description
The RT9483 is a high integration and easy to use power
solution for Li-ion power bank and other powered handheld
applications. We call it EZPBS^TM (Easy to Use Power
Bank Solution). This single chip includes a linear charger,
a synchronous Boost with output load management and
a torch function support. The battery volume and the state
of charging and discharging can be indicated by 4LEDs.
The RT9483 is available in the WQFN-24L 4x4 package.
Applications
 Li-ion Power Bank
Ordering Information
RT9483
Serial Number
Package Type
QW : WQFN-24L 4x4 (W-Type)
(Exposed Pad-Option 2)
Note :
Lead Plating System
G : Green (Halogen Free and Pb Free)
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.
Features
EZPBS^TM (Easy to Use Power Bank Solution)
 Compact BOM Elements with EZPBS^TM Single Chip
 Protection Functions (OTP, OVP, OCP, VBUS and
Output Short Protection)
 Support Charging and Discharging at the same time
by Smart Algorithm
Charger
 One Linear Charger up to 1.2A
 DPM Function (Dynamic Power Management)
 Thermal Regulation
 Auto-Recharge
 Support JEITA Function
USB Output
 Auto and Button Control
 Sync-Boost Total Output Current up to 2.5A
 Peak Efficiency 97%
Battery State of Charge (SOC) Indicator
 Battery SOC Detection
 Support NTC for Battery Temperature Sensing
 4LEDs for Battery SOC Display
Other Functions
 Torch Functions
Simplified Application Circuit
Input Power
Battery
C_IN
L1
C1
VBUS
VBAT
RT9483
LXBST
SWIN
VMID
USBOUT1
LEDx
C_VMID
TORCH
BUTTON
GND
C_BAT
Battery
USB Port 1
LED Indicator
Torch Function
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
DS9483-01 September 2014
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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