EUP8010X
Linear Li-Ion/Polymer Charger IC with
Integrated FET and Charger Timer
DESCRIPTION
The EUP8010X series are highly integrated single cell
Li-Ion/Polymer battery charger IC designed for handheld
devices. The EUP8010X integrates internal power FET,
current sensor, charge status and reverse current protection
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.
The EUP8010X 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 EUP8010X automatically re-starts the
charge if the battery voltage falls below an internal
threshold. The EUP8010X also automatically enters sleep
mode when DC supplies are removed. No external sense
resistor or blocking diode is required for charging.
FEATURES
Integrated Power FET and Current Sensor for Up
to 1A Charge Applications
Charge Termination by Minimum Current and
Time
Precharge Conditioning With Safety Timer
Reverse Leakage Protection Prevents Battery
Drainage
Status Outputs for LED or System Interface
Indicates Charge and Fault Conditions
Optional Battery Temperature Monitoring Before
and During Charge
Automatic Sleep Mode for Low-Power
Consumption
Available in 3mm
×
3mm TDFN-10 Package
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Smartphones
Digital Cameras
PDAs/ MP3 Players
Stand-Alone Chargers
Typical Application Circuit
Figure 1. EUP8010B
DS8010X Ver 1.2 June 2007
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
