FAN54015BUCX-FS

Battery Chargers Overview

The FAN54015BUCX-FS is a USB-compliant single-cell lithium-ion and polymer battery switching charger integrated with a USB-OTG boost regulator. It operates within an input voltage range of 4V to 6V, delivering a maximum output current of 1.45A and a maximum charging voltage of 4.4V. The device supports programmable charge current, timer, and voltage settings. It features comprehensive fault protection including over-temperature, over-voltage, and short-circuit safeguards. The component is housed in a compact 20-wafer-level chip-scale package (WLCSP) measuring 1.96mm by 1.87mm.

Battery Chargers Feature Summary

• Integrates a switching charger for single-cell Li-Ion/Polymer batteries with a USB-OTG boost regulator
• Supports programmable charge current, timer, and voltage parameters
• Includes built-in fault protection mechanisms for over-temperature, over-voltage, and short circuits

Battery Chargers Applications

• USB-powered portable electronic devices requiring battery management
• Mobile phones and smartphones utilizing lithium-ion or polymer cells
• Tablets and handheld gadgets needing USB-On-The-Go power capabilities
• Compact consumer electronics with space-constrained PCB layouts

Battery Chargers Procurement Notes

Verify the specific suffix FS against official onsemi/Fairchild documentation to confirm it denotes a standard commercial grade variant rather than a specialized industrial or automotive qualification. Confirm RoHS compliance status through the latest datasheet revision. Check for product discontinuance notifications as this series may have been superseded by newer generations from onsemi.

Battery Chargers Selection Notes

Select this component when designing systems that require both battery charging and USB host functionality from a single IC. Ensure the application environment stays within the specified -40°C to +85°C operating temperature range. Verify that the available USB source can provide sufficient current for the programmed charging rate without triggering over-current protection prematurely.

Battery Chargers Part Context

This part belongs to the FAN54015 family of power management ICs designed for mobile applications. Originally developed by Fairchild Semiconductor, the product line was integrated into onsemi's portfolio following corporate acquisitions. The FAN54015 series is characterized by its high integration level, combining charging and boosting functions to reduce external component count and board space.

Battery Chargers Replacement Considerations

Publicly confirmed substitutes include the FAN54047UCX and FAN54151UCX. These alternatives offer similar single-cell charging capabilities but may differ in specific electrical characteristics or package configurations. Verify pin compatibility and functional equivalence before substitution.