ME4222 LiFePO₄ Battery Protection Power Management IC, 2-Cell, SOT23-6

The ME4222 is a lithium iron phosphate (LiFePO₄) battery protection IC designed for two-cell battery configurations. It provides precise over-charge, over-discharge, and over-current protection optimized for LiFePO₄ chemistry, ensuring safety and long cycle life.

Key Specifications

• Battery Configuration: 2-cell LiFePO₄

• Overcharge Detection Voltage (VCU): 3.65V / 3.80V ±0.025V

• Overcharge Release Voltage (VCR): 3.45V / 3.70V ±0.05V

• Over-discharge Detection Voltage (VDL): 2.00V / 2.20V ±0.08V

• Over-discharge Release Voltage (VDR): 2.50V ±0.1V

• Over-current Detection Voltage (VCIP): –200mV ±30mV

• Quiescent Current (IDD): 5.0µA

• Package: SOT23-6

Applications

• LiFePO₄ battery packs

• Industrial energy storage

• Backup power systems

• Electric tools and equipment

Features

• Optimized for LiFePO₄ chemistry

• Accurate voltage protection thresholds

• Low quiescent current

• Reliable dual-cell protection

• Compact SOT23-6 package