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RT9516

Description
Linear Single Cell Li-lon Battery Charger with Single Input Supply for Portable Applications
CategoryPower/power management    SingleCellLi-Ion   
File Size210KB,11 Pages
ManufacturerRichtek Technology Corporation
Websitehttps://www.richtek.com/
Download Datasheet Parametric View All

RT9516 Overview

Linear Single Cell Li-lon Battery Charger with Single Input Supply for Portable Applications

RT9516 Parametric

Parameter NameAttribute value
StatusActive
Vin (min)(V)4.5
Vin (max)(V)6
Battery Charge Voltage (max)(V)4.2
Battery Charge Current (max)(A)1
Input SourceAC Adapter;USB
FeaturesEnable Input;OVP;Power Good;UVP
Package TypeWDFN2x2-8
Datasheethttps://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS9516-01.pdf
RT9516
Linear Single Cell Li-lon Battery Charger with Single Input
Supply for Portable Applications
General Description
The RT9516 is a fully integrated low cost single-cell
Li-Ion battery charger ideal for portable applications. The
RT9516 is capable of being powered up from AC adapter
and USB (Universal Serial Bus) port inputs. The RT9516
enters sleep mode when supplies are removed. The
RT9516 optimizes the charging task by using a control
algorithm including preconditioning mode, fast charge
mode and constant voltage mode. The charging task will
keep in constant voltage mode to hold the battery in a full
charge condition. The charge current can be programmed
with an external resister. The internal thermal feedback
circuitry regulates the die temperature to optimize the
charge rate for all ambient temperatures. The RT9516
features 28V maximum rating voltages for VIN. The other
features are under voltage protection, over voltage
protection for AC adapter supply.
RT9516 also provide a booting assistant circuit which
detect input source and battery connection condition and
provide an output signal (ABO) for system booting.
The RT9516 is available in WDFN-8L 2x2 tiny package to
achieve best solution for PCB space and total BOM cost
saving considerations.
Features
28V Maximum Rating for AC Adapter
Internal Integrated Power MOSFETs
AC Adapter Power Good Status Indicator
Programmed Charging Current
Output for Auto-Booting
Under Voltage Protection
Over Voltage Protection
Thermal Feedback Optimizing Charge Rate
RoHS Compliant and Halogen Free
Applications
Cellular Phones
Digital Cameras
PDAs and Smart Phones
Probable Instruments
Pin Configurations
(TOP VIEW)
VIN
GND
ISET
ABI
1
2
3
4
8
7
6
5
9
BATT
PGOOD
EN
ABO
WDFN-8L 2x2
Ordering Information
RT9516
Package Type
QW : WDFN-8L 2x2 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
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.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9516-01 April 2011
GND
www.richtek.com
1
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