FAN54015UCX

Battery Chargers Overview

The FAN54015UCX is a battery charging controller designed for lithium-ion and lithium-polymer batteries. It operates within an input voltage range of 4 V to 6 V, supporting a maximum output current of 1.45 A. The device regulates the output voltage between 3.5 V and 4.4 V. It is housed in a WLCSP package with 20 pins, featuring dimensions of 1.96 mm x 1.87 mm x 0.378 mm. The component supports surface mount installation and functions across a temperature range of -40 °C to +85 °C.

Battery Chargers Feature Summary

• Supports charging for lithium-ion and lithium-polymer battery chemistries
• Integrates power path management for system operation during charging
• Utilizes a compact wafer-level chip-scale package for space-constrained designs

Battery Chargers Applications

• Portable electronic devices requiring single-cell battery management
• Mobile communication hardware utilizing Li-Ion or Li-Po power sources
• Consumer electronics with limited board space constraints

Battery Chargers Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor or onsemi, noting corporate acquisition history. Confirm the specific suffix UCX corresponds to the WLCSP-20 package variant. Ensure compliance with RoHS directives by checking the detailed product attributes provided in official documentation. Validate that the ordering part number matches the required pin count and thermal specifications for your application.

Battery Chargers Selection Notes

Select this component when designing systems requiring a dedicated controller for Li-Ion or Li-Po cells with input voltages up to 6 V. The 1.45 A maximum output current capability suits moderate-power portable applications. Consider the small footprint dimensions for dense PCB layouts. Ensure the operating temperature range meets the environmental requirements of the final assembly.

Battery Chargers Part Context

This device belongs to the FAN54xx series of battery management products from Fairchild Semiconductor. These components are engineered for efficient charge management in portable electronics. The series typically integrates switching regulators and power path controllers to optimize charging efficiency and system uptime.

Battery Chargers Replacement Considerations

Consult official datasheets for direct pin-compatible substitutes within the same family. Verify electrical parameters such as output current limits and input voltage ranges against the new component. Check for any changes in package dimensions or thermal characteristics.