FAN5403UCX

$0.31

Description：IC BATT CHG LI-ION 1CELL 20WLCSP
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:f174cb1042a5 Category: Battery Chargers Brand: Fairchild Semiconductor

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Product introduction

FAN5403UCX is listed in the Battery Chargers range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is IC BATT CHG LI-ION 1CELL 20WLCSP. Review the specifications below when checking this part for your BOM.

Battery Chargers specifications for FAN5403UCX

Description：IC BATT CHG LI-ION 1CELL 20WLCSP
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
Battery Chemistry：Lithium Ion
Voltage - Supply (Max)：6V
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：20-UFBGA, WLCSP
Supplier Device Package：20-WLCSP (1.96x1.56)
Number of Cells：1
Current - Charging：Constant - Programmable
Programmable Features：Current, Timer, Voltage
Fault Protection：Over Temperature, Over Voltage, Short Circuit
Charge Current - Max：1.25A
Battery Pack Voltage：4.5V (Max)
Interface：I2C, USB
Grade：-
Qualification：-

Battery Chargers datasheet and documents for FAN5403UCX

FAN5403UCX

Battery Chargers Overview

The FAN5403UCX is a single-cell lithium-ion switching charger IC manufactured by Fairchild Semiconductor, now part of onsemi. It operates within a supply voltage range up to 6V and supports battery chemistries including Lithium-Ion and Polymer. The device is housed in a compact 20-WLCSP package with dimensions of 1.96x1.56 mm. It functions as a USB-compliant charger designed for portable applications requiring efficient power management.

Battery Chargers Feature Summary

USB-Compliant Single-Cell Li-Ion Switching Charger
Ultra-Small WLCSP Package Footprint

Battery Chargers Applications

Portable consumer electronics
Mobile communication devices
Battery-powered gadgets

Battery Chargers Procurement Notes

Verify the manufacturer status carefully, as Fairchild Semiconductor has been acquired by onsemi. Ensure the specific lot date code aligns with current production availability. Confirm that the 20-WLCSP package variant matches your PCB layout requirements. Check for any obsolescence notices or lifecycle changes associated with this component number from the current supplier.

Battery Chargers Selection Notes

Select this component when a small form factor is critical for single-cell lithium-ion charging applications. It is suitable for designs requiring USB compliance and switching efficiency. Consider the thermal performance within the WLCSP package relative to the expected load. Verify compatibility with the target USB host specifications for proper operation.

Battery Chargers Part Context

This component belongs to the battery management category under Power Management ICs (PMIC). It is specifically categorized as a switching charger for single-cell batteries. The product line emphasizes high efficiency and small solution footprints for mobile devices. It serves as a key element in power path management for portable systems.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the acquisition of Fairchild by onsemi, verify if equivalent models exist within the current onsemi portfolio. Cross-reference pinouts and electrical characteristics before substituting.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

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Delivery time

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Freight calculation

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Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.