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Eosmem New Release

2017-03-30cliff@estcorp.com.tw

P/N : NT2121
The NT2121 is a compact and high-performance single chip PMIC for backup
battery pack applications.
The NT2121 integrates all functions that a backup battery pack needs, including
input power switch, switching charger,
boost converter, LED indication and a smart USB charging port controller.

Features
Full Cycle of Battery Charge Management:
Preconditioning, CC Mode, CV Mode, End of
Charge
 High Efficiency Switch Mode Charger
 92% Charge Efficiency at 2A
 15V Input Surge Protection
 Programmable 4.1V to 4.4V Battery Voltage
 Programmable up to 2.5A Fast Charge
Current Regulation
 Input Voltage Regulation
 Chip Temperature Regulation with Foldback
Charge Current
 Synchronous Boost Converter
 Programmable up to 2.4A Output Current
Regulation
 95% Efficiency at 5.1V/1A
 Support BC1.2 & YD/T 1591 Battery Charging
Specifications
 4 LEDs Battery Level and Status Indication
 Battery Impedance Compensation
 Boost Auto Turn-off and Push-Botton Turn-on
 High Efficiency Switch Mode Charger
 95% Charge Efficiency at 5.1V/1A
 WQFN4x4-24L Package
 RoHS Compliant and Halogen-Free

Applications
 Backup Battery Pack
 Power Bank
 Mobile Power
 Standalone Battery Charger with USB Output

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