FAN5421BUCX
- Mfr.Part #
- FAN5421BUCX
- Manufacturer
- onsemi
- Package / Case
- 20-UFBGA, WLCSP
- Datasheet
- Download
- Description
- IC BATT CHG LI-ION 1CELL 20WLCSP
- Stock
- 195,970
- In Stock :
- 195,970
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- Manufacturer :
- onsemi
- Product Category :
- Battery Chargers
- Packaging :
- Tape and Reel (TR)
- Analog IC - Other Type :
- POWER SUPPLY SUPPORT CIRCUIT
- Max Output Current :
- 1.55A
- Number of Terminations :
- 20
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- RoHS Status :
- ROHS3 Compliant
- Number of Cells :
- 1
- Package / Case :
- 20-UFBGA, WLCSP
- Programmable Features :
- Current, Timer, Voltage
- Fault Protection :
- Over Temperature, Over Voltage, Short Circuit
- Terminal Position :
- BOTTOM
- Terminal Form :
- Ball
- Mount :
- Surface Mount
- Output Voltage :
- 5.4V
- Width :
- 1.87mm
- Operating Supply Current :
- 40mA
- Number of Pins :
- 20
- Interface :
- I2C
- Height :
- 378μm
- Max Input Voltage :
- 20V
- Max Output Voltage :
- 4.4V
- Length :
- 1.96mm
- Charge Current - Max :
- 1.5A
- Current - Charging :
- Constant - Programmable
- Min Supply Voltage :
- 4V
- Battery Chemistry :
- Lithium Ion/Polymer
- Supply Voltage :
- 5V
- Base Part Number :
- FAN5421
- Factory Lead Time :
- 13 Weeks
- Operating Temperature :
- -30°C~85°C TA
- Number of Channels :
- 1
- Published :
- 2016
- Number of Functions :
- 1
- JESD-609 Code :
- e1
- Terminal Pitch :
- 0.4mm
- ECCN Code :
- EAR99
- Pbfree Code :
- yes
- Weight :
- 73mg
- Max Supply Voltage :
- 6.8V
- Adjustable Threshold :
- yes
- Power Supplies :
- 5V
- Min Output Voltage :
- 3.5V
- Radiation Hardening :
- No
- Mounting Type :
- Surface Mount
- Terminal Finish :
- Tin/Silver/Copper (Sn/Ag/Cu)
- Lifecycle Status :
- ACTIVE (Last Updated: 1 day ago)
- Datasheets
- FAN5421BUCX

Battery Chargers onsemi FAN5421BUCX Overview
The Battery Chargers onsemi FAN5421BUCX is an advanced integrated circuit designed for efficient and reliable charging of lithium-ion batteries. Manufactured by onsemi, a trusted name in electronic components, this IC offers exceptional performance and versatility for various battery charging applications. With its compact 20WLCSP form factor, it provides high power density while maintaining a small footprint, making it ideal for portable devices and space-constrained applications.
FAN5421BUCX Features
- Integrated circuit for lithium-ion battery charging
- Designed for single-cell applications
- Compact 20WLCSP package for high power density
- Efficient and reliable charging performance
- Flexible input voltage range for versatile usage
- Advanced safety features for battery protection
- Low standby current for energy efficiency
FAN5421BUCX Applications
- Mobile Phones: The FAN5421BUCX is used in mobile phone battery charging circuits to efficiently and safely recharge lithium-ion batteries, ensuring optimal performance and battery life.
- Tablets and Laptops: This IC is employed in tablets and laptops to provide fast and reliable charging solutions for their built-in lithium-ion battery packs, enabling quick recharging and extended device usage.
- Portable Consumer Electronics: From digital cameras to portable gaming devices, the FAN5421BUCX serves as a vital component in the charging systems of various portable consumer electronics, delivering efficient power management and battery charging capabilities.
- Wearable Devices: In wearable technology such as smartwatches and fitness trackers, this IC plays a crucial role in maintaining the battery life and ensuring consistent performance through optimized charging algorithms and safety features.
- Medical Devices: The FAN5421BUCX is integrated into medical devices requiring rechargeable lithium-ion batteries, providing reliable charging solutions that comply with stringent safety and performance standards in healthcare environments.
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