Product Overview: LTC4002ES8-4.2#TRPBF

The LTC4002ES8-4.2#TRPBF is a high-performance, standalone linear battery charger designed by Linear Technology for single-cell lithium-ion batteries. This advanced charging solution is housed in an ES8 package and is tailored specifically for portable, space-constrained applications that require efficient and reliable battery management.

Key Features

• Precision Charge Voltage: The LTC4002ES8-4.2#TRPBF is programmed to accurately maintain a 4.2V charge voltage, which is crucial for maximizing the lifespan and performance of lithium-ion batteries.
• Adjustable Charge Current: Users can set the charge current up to 1A using a single resistor, providing flexibility to match the charging needs of different battery capacities.
• Automatic Recharge: The charger initiates a new charging cycle if the battery voltage falls below 4.05V, ensuring the battery remains fully charged over time.
• Charge Status Output: A status pin provides real-time charge status, which can be used to drive an external LED or interface with a microcontroller for more advanced battery monitoring.
• Thermal Regulation: To protect the battery and charger during high power or high ambient conditions, the LTC4002ES8-4.2#TRPBF features thermal regulation that reduces charge current.

Applications

The LTC4002ES8-4.2#TRPBF is ideal for a wide range of portable electronic devices, such as:

• Handheld Instruments
• Bluetooth Applications
• Portable Medical Equipment
• Smartphones and PDAs
• Portable Media Players

Quality and Reliability

Linear Technology's LTC4002ES8-4.2#TRPBF is designed with the highest standards of quality and reliability. It features overvoltage protection that shields the battery from input voltages up to 13V, and its low dropout voltage ensures efficient charging even with a low input supply. The charger is also equipped with undervoltage lockout, which disables the charge process when the input voltage falls below an operational threshold, preventing damage to the battery and the charger circuit.

With its compact size, precision charging capabilities, and robust safety features, the LTC4002ES8-4.2#TRPBF is an excellent choice for designers looking for a dependable charging solution for lithium-ion batteries.