EUP8051

Features:

Programmable Charge Current up to 1A  
4.5V-7V Input Voltage Range
Ideal for Single Cell (4.1V or 4.2V) Li-Ion or Li-Pol Batteries
Preset Charge Voltage with ±1% Accuracy
Constant-Current/Constant Voltage Operation
Preconditioning of Low Voltage Cells
Optional Cell-Temperature Monitoring Before and During Charge  
Charge Status Indication
Automatic Battery Recharge
Charge Termination by Minimum Current  
Automatic Low-Power Sleep Mode When Input Power is Removed
Available in MSOP-8 Package
RoHS Compliant and 100% Lead (Pb)-Free

Application

Cellular Phones / PDAs/ MP3 Players/DSC 
Handheld Instruments


Pinout




Specifications

Supply voltage, (Vcc with respect to GND) ------------------------------  -0.3 to +7V
Input voltage, SNS, BAT, TS, PI (all with respect to GND)----- -0.3V to VCC +0.3V 
Sink current (STAT pin) not to exceed   PD -------------------------------------   20mA
Source   current (STAT pin) not to exceed PD   --------------------------------- 10mA
Output current (CC pin) not to exceed PD   ------------------------------------  40mA
Maximum Junction Temperature, TJ   ------------------------------------------  150°C
Storage temperature range, Tstg    -----------------------------    -65°C to 150°C
Lead temperature (soldering, 10s)    ---------------------------------------      300°C
Package Thermal Resistance, JA- MSOP8 --------------------------------   80°C/W     


Description

The EUP8051 is a single Lithium-Ion (Li-Ion) and LithiumPolymer (Li-Pol) linear charge management controller for use in cost sensitive and portable applications. It combines high accuracy constant-current and constant-voltage Mregulation, cell preconditioning, temperature monitoring, automatic charge termination, charge-status indication, in a space-saving MSOP-8 package.

The EUP8051 applies a constant current up to 1A to the battery and the charge current can be programmed externally with a sense-resistor.  

The EUP8051 automatically terminates the charge cycle when the charge current drops to the charge termination threshold (ITERM) after the charge-regulation voltage is reached.