MP2612 2A,24V Input, 600kHz 2-3 Cells Switching Li-Ion Battery Charger QFN16

MP2612 2A,24V Input, 600kHz 2-3 Cells Switching Li-Ion Battery Charger QFN16

The MP2612 is a monolithic switching charger for 2-3 cells series Li-Ion cells battery with a built-in internal power MOSFET.

Key Specifications

Features

• Charges 2-3 Cells Series Li-Ion Battery Packs
• Wide Operating Input Range
• Up to 2 A Programmable Charging Current
• ±0.75% VBATT Accuracy
• 0.2Ω Internal Power MOSFET Switch
• Up to 90% Efficiency
• Fixed 600kHz Frequency
• Preconditioning for Fully Depleted Batteries
• Charging Operation Indicator
• Input Supply and Battery Fault Indicator

Typical Application Circuit

Applications

• Distributed Power Systems
• Chargers for 2-Cell or 3-Cell Li-Ion Batteries
• Pre-Regulator for Linear Regulators
• Smart Phones
• Net-book For MPS green status, please visit MPS website under Quality Assurance. "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

Design Notes

• Charge current accuracy depends on the sense resistor tolerance, so use a 1% or better part and keep its traces Kelvin-connected.
• Wire the NTC input for JEITA profile control if the pack is charged over temperature.
• Set the input current limit to what the adapter can actually deliver; a limit above the adapter rating causes the input rail to collapse mid-charge.
• Termination current and recharge threshold dominate cycle life in shallow-cycling products.

Common Questions