BQ2202SN-N

Overview

The BQ2202SN-N is a battery charge controller manufactured by Benchmarq Microelectronics Inc. It operates within an input voltage range of 4.5 V to 5.5 V, with a nominal input of 5 V. The device utilizes current-mode control and pulse width modulation techniques. It features a single switcher configuration with a maximum switching frequency of 100 kHz. The component is housed in a PDSO16 plastic/epoxy package and supports surface mount mounting. It functions as a nonvolatile SRAM controller for lithium-ion battery systems.

Feature Summary

• Implements current-mode control with pulse width modulation for precise battery charging management
• Integrates nonvolatile SRAM functionality for system data retention
• Designed for low-power operation in compact surface-mount packages

Applications

• Lithium-ion battery charging systems
• Industrial digital systems requiring power management
• Consumer electronic devices with single-cell battery configurations

Procurement Notes

Verify the manufacturer designation carefully, as sources attribute this part to both Benchmarq Microelectronics Inc and Microchip USA. Confirm RoHS compliance status, as some listings indicate ROHS3 compliance while others note non-compliance. Ensure the specific suffix '-N' matches your supply chain requirements for lead-free or specific packaging variants.

Selection Notes

Select this component for applications requiring a dedicated lithium-ion charge controller with integrated memory support. The 4.5 V to 5.5 V input range suits standard 5 V logic systems. Consider the PDSO16 package size for space-constrained designs. Verify temperature ratings (-40°C to 85°C) against environmental conditions.

Part Context

This part belongs to the Benchmarq battery management portfolio, specifically targeting single-cell lithium-ion applications. It serves as a power supply support circuit integrating charging control and system reset functionalities. The component is categorized under PMIC (Power Management Integrated Circuits) for battery chargers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other Benchmarq battery charge controllers if pin compatibility is required.