LTC4054ES5-4.2#TRPBF

The LTC4054ES5-4.2#TRPBF is a battery charger integrated circuit (IC) manufactured by Linear Technology, which is now part of Analog Devices Inc. The IC is also associated with Maxim Integrated, which is known for its power management solutions.

Key Features:

• Type: Battery charger IC.
• Battery Chemistry: Designed for lithium-ion (Li-ion) and lithium-polymer (LiPo) rechargeable batteries.
• Input Voltage Range: Accepts a wide range of input voltages, typically from a USB port or a wall adapter.
• Charging Current: Provides programmable charging current for battery charging.
• Charge Termination: Automatically terminates charging when the battery is fully charged to prevent overcharging.
• Safety Features: Includes overvoltage protection, overcurrent protection, and thermal shutdown for safe operation.
• Status Indicators: May include LED indicators or status pins to indicate charging status.
• Package Type: Available in a small surface-mount package for compact designs.
• RoHS Compliance: Indicates whether the IC complies with the Restriction of Hazardous Substances (RoHS) directive, restricting the use of certain hazardous materials.

Applications: 

• Smartphones and tablets
• Portable media players
• Wearable devices
• Bluetooth headsets
• Portable medical devices
• GPS navigation systems
• Portable gaming devices
• Portable power banks