Manufacturer Part Number
BQ2057WSN
Manufacturer
Texas Instruments
Introduction
The BQ2057WSN is a highly integrated Lithium Ion and Lithium Polymer switch-mode battery charge controller.
Product Features and Performance
Constant current programmable charging
Support for 2-cell Lithium Ion/Polymer batteries
Automatic recharge feature
LED status indication-compatible
Thermal regulation for optimized charging time and enhanced safety
Built-in temperature sensing for battery protection
Product Advantages
Integration reduces external component count
Accuracy in current and voltage regulation maximizes battery life
Industry-standard footprint for Surface Mount Technology (SMT) production
Key Technical Parameters
Battery Chemistry: Lithium Ion/Polymer
Number of Cells: 2
4V battery pack voltage
15V maximum supply voltage
Programmable charging current
Surface Mount mounting type
Operating temperature range from -20°C to 70°C
Quality and Safety Features
Over temperature protection
Thermal feedback for proper charging
Safety timers
Compatibility
Compatible with 2-cell Lithium Ion/Polymer battery configurations
Application Areas
Portable consumer electronics
Handheld devices
Power tools
Battery-powered equipment
Product Lifecycle
Active product stage
No indication of nearing discontinuation
Options for replacements or upgrades would depend on future product developments by Texas Instruments
Several Key Reasons to Choose This Product
High integration for minimal external components and compact design
Flexible programmable parameters to suit a wide range of specifications
Thermal protection to ensure safe charging under various conditions
Proven reliability from a respected manufacturer, Texas Instruments
Commercial and industrial application versatility
Active product support and documentation from Texas Instruments
BQ2057TSNBenchmarqBQ2057T LOW DROPOUT LINEAR 2-CEL