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Eutech Microelectronics

EUP8051A Datasheet Preview

EUP8051A Datasheet

Low Cost 1A Linear Battery Charge Controllers

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EUP8051A
Low Cost 1A Linear Battery Charge
Controllers
DESCRIPTION
The EUP8051A is a single Lithium-Ion (Li-Ion) and
Lithium–Polymer (Li-Pol) linear charge management
controller for use in cost sensitive and portable
applications. It combines high accuracy constant-current
and constant-voltage regulation, cell preconditioning,
temperature monitoring, automatic charge termination,
charge-status indication, in a space-saving MSOP-8
package.
The EUP8051A applies a constant current up to 1A to the
battery and the charge current can be programmed
externally with a sense-resistor.
The EUP8051A automatically terminates the charge cycle
when the charge current drops to the charge termination
threshold (ITERM) after the charge-regulation voltage is
reached.
When the input supply is removed, the EUP8051A
automatically enters a low-power sleep mode, dropping
the battery drain current to less than 1µA.
A battery charge state output pin is provided to indicate
battery charge status through a display LED. The battery
charge status output is a serial interface which may also be
read by a system microcontroller.
FEATURES
z Programmable Charge Current up to 1A
z 4.5V-7V Input Voltage Range
z Ideal for Single Cell (4.2V) Li-Ion or Li-Pol
Batteries
z Preset Charge Voltage with ±1% Accuracy
z Constant-Current/Constant Voltage Operation
z Preconditioning of Low Voltage Cells
z Optional Cell-Temperature Monitoring Before and
During Charge
z Charge Status Indication
z Automatic Battery Recharge
z Charge Termination by Minimum Current
z Automatic Low-Power Sleep Mode When Input
Power is Removed
z Available in MSOP-8 Package
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Cellular Phones / PDAs/ MP3 Players/DSC
z Handheld Instruments
DS8051A Ver 1.1 Nov. 2006
1




Eutech Microelectronics

EUP8051A Datasheet Preview

EUP8051A Datasheet

Low Cost 1A Linear Battery Charge Controllers

No Preview Available !

EUP8051ATel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Typical Application Circuit
DS8051A Ver 1.1 Nov. 2006
2


Part Number EUP8051A
Description Low Cost 1A Linear Battery Charge Controllers
Maker Eutech Microelectronics
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EUP8051A Datasheet PDF






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