EUP8060X Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 1A Li-Ion/Polymer Charger IC with Thermal Regulation and OVP

EUP8060X
1A Li-Ion/Polymer Charger IC with
Thermal Regulation and OVP
DESCRIPTION
The EUP8060X series are highly integrated single cell
Li-Ion/Polymer battery charger IC designed for handheld
devices. The EUP8060X integrates internal power FET,
current sensor, charge status, reverse current protection
and overvoltage protection (OVP) in a single monolithic
devices. When AC-adapter is applied, an external resistor
sets the magnitude of the charge current, which may be
programmed up to 1A. Thermal feedback also regulates
the charge current to limit the die temperature when fast
charging or while exposed to high ambient temperature.
The EUP8060X charges the battery in three phases:
conditioning, constant current, and constant voltage.
Charge is terminated based on minimum current. An
internal charge timer provides a backup safety for charge
termination. The EUP8060X can operate in an LDO mode
which is used primary during system level testing of the
handset to eliminate the need for battery insertion. The
EUP8060X automatically re-starts the charge if the battery
voltage falls below an internal threshold. The EUP8060X
also automatically enters sleep mode when DC supplies
are removed. No external sense resistor or blocking diode
is required for charging.
FEATURES
z Programmable Charge Current up to 1A
z ± 1% Voltage Regulation Accuracy
z Thermal Regulation to Maximize Charge Rate
z Input Overvoltage Protection:
6.6V and 11V Options
z Charge Termination by Minimum Current and
Time
z Precharge Conditioning with Safety Timer
z Status Outputs to Indicate Charge, Fault, and
Power good Outputs
z Reverse Leakage Protection Prevents Battery
Drainage
z Short-Circuit and Thermal Protection
z Automatic Sleep Mode for Low Power
Consumption
z LDO Mode Operation for System Level Testing
without Battery Insertion
z 3mm ^× 3mm TDFN Package
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Mobile Phone, PDA, MP3 Players,
Digital Cameras
z Mobile Internet Devices (M1D)
Typical Application Circuit
DS8060X Ver 1.0 May 2008
Figure 1. EUP8060B
1