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Preliminary Datasheet
LP28006
Single and Dual Cell Li+ Battery Charger IC –LP28006
General Description
The LP28006 is a fully integrated low cost single-cell
Li-Ion battery charger IC ideal for portable applications.
The LP28006 is capable of being powered up from AC
adapter. The LP28006 enters sleep mode when AC adapter
is removed. The LP28006 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
LP28006 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.
Order Information
LP28006 - □ □ □ □ □
F: Pb-Free
Package Type
QV: TDFN-10
Output Voltage
42: 4.2V
84: 8.4V
Applications
— Portable Media Players/MP3 players
— Cellular and Smart mobile phone
— PDA/DSC
— Bluetooth Applications
Features
z18V Maximum Rating for AC Adapter
zInternal Integrate P-MOSFETs
zAC Adapter Power Good Status Indicator
zCharge Status Indicator
zUnder Voltage Protection
zOver Voltage Protection
zAutomatic Recharge Feature
zBattery Temperature Monitoring
zSmall 10-Lead WDFN Package
zThermal Feedback Optimizing Charge Rate
zRoHS Compliant and 100% Lead (Pb)-Free
Typical Application Circuit
Marking Information
Please see website of LP28006:
www.lowpowersemi.com.
LP28006 – 00 Ver. 1.0 Datasheet
Feb.-2010
www.lowpowersemi.com
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Functional Pin Description
Package Type
Preliminary Datasheet
Pin Configurations
LP28006
TDFN- 10
Pin Description
Note: LP28006-42QVF and LP28006-84QVF of Battery (Pin10) is output pin, the pin connector to Battery.
LP28006 – 00 Ver. 1.0 Datasheet
Feb.-2010
www.lowpowersemi.com
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Function Block Diagram
Preliminary Datasheet
LP28006
LP28006 – 00 Ver. 1.0 Datasheet
Feb.-2010
www.lowpowersemi.com
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LP28006-42 Flow Chart
Preliminary Datasheet
LP28006
LP28006 – 00 Ver. 1.0 Datasheet
Feb.-2010
www.lowpowersemi.com
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Preliminary Datasheet
LP28006
LP28006 – 00 Ver. 1.0 Datasheet
Feb.-2010
www.lowpowersemi.com
Page 5 of 11