FAN5405UCX

Battery Chargers Overview

The FAN5405UCX is a single-cell lithium-ion/polymer battery charger IC from onsemi, housed in a 20-WLCSP package. It supports programmable charging current up to 1.25A and operates with an input voltage supply of up to 6V. The device integrates I2C and USB interfaces for configuration and monitoring. It features comprehensive protection mechanisms including over-temperature, over-voltage, and short-circuit safeguards. The component is designed for surface-mount installation and functions within a temperature range of -30°C to 85°C.

Battery Chargers Feature Summary

• Integrates I2C and USB interfaces for programmable control and system monitoring
• Includes built-in thermal regulation and multiple fault protection modes
• Supports configurable constant-current and constant-voltage charging profiles

Battery Chargers Applications

• Portable electronic devices requiring single-cell Li-ion power management
• USB-powered consumer electronics with integrated battery charging needs
• Compact mobile systems utilizing small footprint WLCSP packaging

Battery Chargers Procurement Notes

Verify the End-of-Life (EOL) status before procurement, as this component has been discontinued by the manufacturer. Confirm availability through authorized distributors or secondary market suppliers. Ensure that any replacement components maintain compatible pinouts and electrical specifications to guarantee seamless integration into existing designs without requiring significant circuit modifications.

Battery Chargers Selection Notes

Select this component for applications requiring a compact solution for single-cell lithium-based batteries. The integrated I2C interface allows for precise customization of charging parameters. Consider the 20-WLCSP package size when evaluating board space constraints. Verify that the host system can support the required communication protocols and that the operating temperature range aligns with the intended deployment environment.

Battery Chargers Part Context

This part belongs to onsemi's battery management portfolio, specifically designed for portable electronics. It falls under the category of power management ICs (PMIC). The device is part of a series that emphasizes high integration and small form factors, catering to modern mobile devices where space efficiency and efficient power delivery are critical design requirements.

Battery Chargers Replacement Considerations

As the FAN5405UCX is discontinued, evaluate alternative single-cell chargers from onsemi or other manufacturers. Ensure substitutes offer comparable current ratings and interface compatibility. Review datasheets for pin-to-pin compatibility to minimize redesign efforts. Verify that new components meet the same safety and regulatory standards required for the original application.