Manufacturer Part Number
BQ25121AYFPT
Manufacturer
Texas Instruments
Introduction
The BQ25121AYFPT is a highly integrated battery charge management IC.
Product Features and Performance
Multi-Chemistry battery support
1-cell battery charger
Constant charging current
I2C interface for programming and communication
Charge Current up to 300mA
Programmable features for current, timer, and voltage
Fault protection for overcurrent, overvoltage, and short circuit
Wide input voltage range up to 5.5V
Operating Temperature range of -40°C to 85°C
Surface Mount XFBGA, 25-pin package
Product Advantages
High integration for compact design
Flexibility with programmable settings
Robust safety features for device protection
Broad operating temperature suitable for various environments
Key Technical Parameters
Battery Pack Voltage: 4.65V
Charge Current - Max: 300mA
Voltage - Supply (Max): 5.5V
Operating Temperature: -40°C to 85°C
Quality and Safety Features
Over Current Protection
Over Voltage Protection
Short Circuit Protection
Compatibility
Supports multi-chemistry batteries
Optimal for single-cell charging applications
Application Areas
Portable Electronics
Wearable Devices
Wireless Headsets
Smart Watches
Fitness Trackers
Product Lifecycle
Active status
Not reported as nearing discontinuation
No mention of replacements or upgrades
Reasons to Choose This Product
Efficient power management for battery-powered devices
Ideal for space-constrained applications due to small form factor
Extensive programming capabilities through I2C
High reliability with built-in safety features
Versatile across multiple device categories and battery types