R5443Z211CG-E2-F

Overview

The R5443Z211CG-E2-F is a battery management integrated circuit designed for single-cell lithium-ion and lithium-polymer batteries. It provides high-accuracy overcharge protection with an output voltage of 4.46 V. The device operates within a supply voltage range of 1.5 V to 5 V and features a low operating power consumption of 2.5 uA. It supports a maximum power dissipation of 730 mW and functions reliably across a temperature range from -40 C to +85 C. The component is housed in a WLCSP-6 package.

Feature Summary

• High-accuracy overcharge protection for single-cell Li-ion and Li-Po batteries
• Ultra-low operating power consumption of 2.5 uA
• Integrated protection against over-charge conditions

Applications

• Single-cell lithium-ion battery protection systems
• Lithium-polymer battery management circuits
• Portable electronic devices requiring compact battery protection

Procurement Notes

Verify the specific part number R5443Z211CG-E2-F against official Nisshinbo Micro Devices documentation to confirm pinout compatibility and electrical specifications. Ensure that the application environment remains within the specified operating temperature range of -40 C to +85 C. Confirm that the input supply voltage stays within the 1.5 V to 5 V limit to prevent device malfunction or damage during operation.

Selection Notes

Select this component when designing protection circuits for single-cell lithium-based batteries requiring minimal standby current. The WLCSP-6 package offers a small footprint suitable for space-constrained portable applications. Consider the 4.46 V overcharge threshold as the primary safety parameter. Verify that the 730 mW power dissipation rating meets the thermal requirements of the target design.

Part Context

This component belongs to the R5443Z series of battery management ICs from Nisshinbo Micro Devices. The series specializes in protecting single-cell lithium-ion and lithium-polymer secondary batteries. These ICs are engineered to detect over-charge voltages and disconnect the charging path to ensure battery safety. The series is categorized under PMIC - Power Management ICs.

Replacement Considerations

R5443Z212PH-E2-F, R5443Z210CA-E2-F