RT9515 Datasheet, PDF (1/11 Pages) Richtek Technology Corporation – Linear Single Cell Li-Ion Battery Charger IC

RT9515
Linear Single Cell Li-Ion Battery Charger IC
General Description
The RT9515 is a fully integrated low cost single-cell Li-
Ion battery charger IC ideal for portable applications. The
RT9515 is capable of being powered up from AC adapter.
The RT9515 enters sleep mode when AC adapter is
removed.
The RT9515 optimizes the charging task by using a control
algorithm including preconditioning mode, fast charge
mode and constant voltage mode. The charging task is
terminated as the charge current drops below the preset
threshold. The AC adapter charge current can be
programmed up to 1A with an external resister. The internal
thermal feedback circuitry regulates the die temperature
to optimize the charge rate for all ambient temperatures.
The RT9515 features 18V maximum rating voltages for
AC adapter. The other features are under voltage
protection, over voltage protection for AC adapter supply
and battery temperature monitoring.
Features
z 18V Maximum Rating for AC Adapter
z Internal Integrated P-MOSFETs
z AC Adapter Power Good Status Indicator
z Charge Status Indicator
z Under Voltage Protection
z Over Voltage Protection
z Automatic Recharge Feature
z Battery Temperature Monitoring
z Small 10-Lead WDFN Package
z Thermal Feedback Optimizing Charge Rate
z RoHS Compliant and Halogen Free
Applications
z Digital Cameras
z Cellular Phones
z Personal Data Assistants (PDAs)
z MP3 Players
z Handheld PCs
Ordering Information
RT9515
Package Type
QW : WDFN-10L 3x3 (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.
Pin Configurations
(TOP VIEW)
ACIN 1
NC 2
CHG_S ³
PGOOD ⁴
GND 5
GND
11
10 BATT
9 TS
8 EN
7 NC
ISETA
WDFN-10L 3x3
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9515-01 April 2011
www.richtek.com
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