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Eutech Microelectronics

EUP8092 Datasheet Preview

EUP8092 Datasheet

1.5A Linear Li-Ion/Polymer Charger IC

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EUP8092
1.5A Linear Li-Ion/Polymer Charger IC
with Integrated FET and Charger Timer
DESCRIPTION
The EUP8092 series are highly integrated single cell
Li-Ion/Polymer battery charger IC designed for handheld
devices. This charger is designed to work with various
types of AC adapters or a USB port and capable of
operating with an input voltage as low as 2.65V.
The EUP8092 operates as a linear charger and charges the
battery in three phases: trickle current, constant current,
and constant voltage. When AC-adapter is applied, an
external resistor sets the magnitude of the charge current,
which may be programmed up to 1.5A with TDFN10
package and a current-limited adapter for lowest power
dissipation.
The EUP8092 features thermal regulation loop to control
charge current to keep safe operation when PCB lacked of
enough heat-sinking. A programmable charge timer
provides a backup safety for termination. The EUP8092
automatically re-starts the charge if the battery voltage
falls below an internal threshold and automatically enters
sleep mode when DC supplies are removed. No external
sense resistor or blocking diode is required for charging. A
NTC thermistor interface is used for charging the battery
in a safe temperature range.
FEATURES
Very Low Power Dissipation
Accepts Multiple Types of Adapters or USB BUS
Power
Integrated Power FET and Current Sensor for Up
to 1.5A Charge Applications
Guaranteed to Operate at 2.65V After Start-Up
Charge Termination by Minimum Current and
Time
Precharge Conditioning With Safety Timer
Reverse Leakage Protection Prevents Battery
Drainage
Charge Current Thermal Regulation
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 and
5mm × 5mm TQFN-16 Packages
RoHS Compliant and 100% Lead (Pb)-Free
Typical Application Circuit
APPLICATIONS
PDAs, Cell Phones and Smart Phones
Portable Instruments.
Stand-Alone Charger.
USB Bus Powered Charger.
DS8092 Ver 1.1 Sep. 2011
Figure 1.
1




Eutech Microelectronics

EUP8092 Datasheet Preview

EUP8092 Datasheet

1.5A Linear Li-Ion/Polymer Charger IC

No Preview Available !

Block Diagram
EUP8092Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Figure 2.
DS8092 Ver 1.1 Sep. 2011
2


Part Number EUP8092
Description 1.5A Linear Li-Ion/Polymer Charger IC
Maker Eutech Microelectronics
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EUP8092 Datasheet PDF






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