Product Overview: LTC1730EGN-4#TRPBF

The LTC1730EGN-4#TRPBF is a high-performance, standalone linear battery charger manufactured by Linear Technology, which is now part of Analog Devices. This advanced charging IC is specifically designed for single-cell lithium-ion or lithium-polymer batteries, ensuring that these energy sources are efficiently and safely charged for a wide range of applications.

This charger operates over a wide input voltage range and provides a constant-current/constant-voltage charge algorithm with programmable charge current up to 2A. The LTC1730EGN-4#TRPBF features precision end-of-charge control, with charge termination by minimum current, ensuring the battery is fully charged without overcharging, which can extend battery life and enhance safety.

Key Features:

• Programmable Charge Current: The device allows the user to set the charge current up to 2A, making it versatile for different battery capacities and sizes.
• Automatic Recharge: Once the battery voltage falls below a certain threshold, the charger automatically initiates a new charge cycle, ensuring the battery stays fully charged.
• Charge Current Monitor: An output pin is available to monitor the charge current, providing real-time feedback for system monitoring or control.
• Thermal Regulation: To protect against overheating, the LTC1730EGN-4#TRPBF includes thermal regulation that reduces charge current if the die temperature exceeds a safe threshold.
• Charge Status Indication: The IC includes a charge status output that can be used to drive an external LED, providing visual feedback on the charging process.
• C/10 Charge Termination: The charger terminates the charge cycle when the charge current drops to one-tenth of the programmed value, ensuring the battery is not overcharged.

The LTC1730EGN-4#TRPBF is packaged in a compact 16-pin SSOP, making it suitable for space-constrained applications. Its robust design includes protection features such as overvoltage protection, undervoltage lockout, and automatic sleep mode for low power consumption when the input supply is removed.

With its comprehensive set of features and protections, the LTC1730EGN-4#TRPBF is an excellent choice for portable electronics, medical devices, and any application requiring reliable and efficient lithium-ion/polymer battery charging.