FAN5421BUCX - onsemi

Manufacturer Part Number

FAN5421BUCX

Manufacturer

onsemi

Introduction

The FAN5421BUCX is a battery charger IC designed specifically for managing the charging of Lithium Ion/Polymer batteries in a single cell configuration.

Product Features and Performance

Supports Lithium Ion/Polymer battery chemistry

Capable of single cell operation

Constant current charging with programmable parameters

Integration of safety features like over temperature, over voltage, and short circuit protection

I2C interface for programming and communication

Maximum charge current of 1.5A

Supports up to 6.8V supply voltage

Operational at a wide temperature range of -30°C to 85°C

Product Advantages

Highly programmable for current, timer, and voltage

Advanced fault protection features ensure safety and prolong battery life

Compact packaging (20-UFBGA, WLCSP) suitable for space-constrained applications

Key Technical Parameters

Battery Chemistry: Lithium Ion/Polymer

Number of Cells: 1

Current Charging: Constant, Programmable

Charge Current Max: 1.5A

Voltage Supply (Max): 6.8V

Interface: I2C

Operating Temperature: -30°C ~ 85°C (TA)

Quality and Safety Features

Over Temperature Protection

Over Voltage Protection

Short Circuit Protection

Compatibility

Exclusively designed for single-cell Lithium Ion/Polymer batteries

Application Areas

Mobile and portable devices

Wearable technology

Electronic gadgets requiring embedded power management solutions

Product Lifecycle

Status: Obsolete

Consider alternatives or check for upgrades due to discontinuation

Several Key Reasons to Choose This Product

Delivers precise charging with programmable settings

Compact form factor ideal for modern portable electronics

Embedded safety protocols to ensure stable and safe operation

Broad operational temperature range fitting various environmental conditions

Seamless interface communication through I2C for easy integration into system designs