2.5A Synchronous Buck Li-ion Battery Charger
ESMT
EMC5090
2.5A Synchronous Buck Li-ion Battery Charger
General Description
The EMC5090 is a switch mode lithium-io...
Description
ESMT
EMC5090
2.5A Synchronous Buck Li-ion Battery Charger
General Description
The EMC5090 is a switch mode lithium-ion battery charger. It utilities a 1.5MHz synchronous buck converter topology to reduce power dissipation during charging. The internal MOS switch delivers current up to 2.5A to charge the battery. The built in pre-charge safety timer automatically terminates charging once the adjustable time limit has been reached. The EMC5090 includes complete charge termination circuitry, automatic recharge and a ±1% of 4.2V float voltage. This device is available in packages of TQFN-16L (4mmx4mm) for space-saving application.
Typical Application
Features
2.5A maximum Charge Current No external MOSFET, sense resistor or blocking
Diode Required Programmable Trickle Charge Termination Timer Programmable Charge Current Programmable End-of-Charge Current Automatic Recharge Thermistor Input for Temperature Qualified
Charging
Applications
PDAs, Tablet, Cell Phone...
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