FAN54300UCX

Battery Chargers Overview

The FAN54300UCX is a USB-compliant dual-power input switch charger IC designed for lithium-ion and lithium-polymer batteries. It operates within a supply voltage range of 4 V to 6 V, delivering a maximum output current of 1.5 A with a maximum output voltage of 4.4 V. The device supports programmable charging current, timer, and voltage settings via an I2C interface. Packaged in a compact 30-WLCSP (2.46 x 2.26 mm) footprint, it functions across an operating temperature range of -40 °C to +85 °C.

Battery Chargers Feature Summary

• Dual-power input switching capability for flexible power source management
• I2C programmable control for charging current, timer, and voltage parameters
• Integrated fault protection including over-voltage, over-temperature, and short-circuit safeguards

Battery Chargers Applications

• Lithium-ion battery charging systems
• Lithium-polymer battery charging applications
• USB-powered portable electronic devices

Battery Chargers Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified suppliers. Confirm the specific manufacturing lot date code against current obsolescence notices, as this part may be subject to discontinuation. Ensure the package type matches the required 30-WLCSP specification for PCB layout compatibility. Request official datasheets and compliance documentation prior to finalizing procurement orders.

Battery Chargers Selection Notes

Select this component when a compact solution for single-cell Li-Ion/Polymer charging is required. The I2C interface allows for precise configuration of charging profiles. Ensure the system design accommodates the 4 V to 6 V input range and the 1.5 A maximum output current capability. Verify that the WLCSP package size fits within the available board space constraints.

Battery Chargers Part Context

This component belongs to the FAN54xx series of battery chargers from onsemi, formerly Fairchild Semiconductor. It is categorized under Power Management ICs specifically for charge management. The device integrates power path management and switching functionality into a small form factor suitable for mobile and handheld applications.

Battery Chargers Replacement Considerations

Check for direct pin-to-pin replacements within the same family. Consult onsemi documentation for updated alternatives if this part is discontinued. Verify electrical specifications and package dimensions match before substitution.