Linear Technology LTC1734ES6-4.2#TRMPBF Lithium-Ion Battery Charger

The LTC1734ES6-4.2#TRMPBF from Linear Technology is a compact, high-efficiency, single-cell lithium-ion (Li-Ion) battery charger designed to extend the life and performance of your portable devices. This advanced charging IC is engineered to provide a simple and efficient solution for charging 4.2V Li-Ion batteries from a variety of power sources.

With its small form factor, the LTC1734ES6-4.2#TRMPBF is available in a low-profile SOT-23 package, making it an ideal choice for space-constrained applications. It is specifically tailored to deliver precise charging with a fixed float voltage of 4.2V, which ensures that the battery is charged to its full capacity without overcharging, thus enhancing the battery's longevity.

The LTC1734ES6-4.2#TRMPBF incorporates a range of features that make it a versatile and user-friendly charging solution. It offers programmable charge current up to 150mA without the need for an external sense resistor. The charge current can be easily set by selecting the appropriate value of a single external resistor. Additionally, the device includes an automatic recharge feature, which initiates a new charging cycle if the battery voltage falls below a preset threshold, ensuring the battery remains fully charged over time.

Safety is a key concern when dealing with Li-Ion batteries, and the LTC1734ES6-4.2#TRMPBF addresses this with its integrated thermal feedback that regulates the charge current to limit the temperature rise during operation. This thermal protection, along with features such as undervoltage lockout, automatic shutdown, and end-of-charge indication, provides a comprehensive safety net for your charging requirements.

Whether you're designing portable consumer electronics, medical devices, or any other application requiring a reliable and efficient Li-Ion battery charging solution, the LTC1734ES6-4.2#TRMPBF is an excellent choice that combines performance, safety, and convenience in a tiny package.

Key Features:

• Fixed 4.2V Float Voltage with ±1% Accuracy
• Programmable Charge Current Up to 150mA
• No External Sense Resistor Required
• Thermal Regulation Maximizes Charge Rate Without Risk of Overheating
• Automatic Recharge Feature
• Low Profile (1mm) SOT-23 Package
• Integrated Safety Features Including Thermal Feedback and Undervoltage Lockout