The LM3420AM5-4.2 is a precision battery management component from Texas Instruments, specifically designed for the meticulous charging and maintenance of lithium-ion batteries. This integrated circuit is tailored to ensure that single-cell lithium-ion batteries operate within their safe voltage range, providing a reliable solution for portable electronic devices that demand consistent power management.

Key Features

• Voltage Precision: The LM3420AM5-4.2 boasts a high-accuracy voltage regulation of 4.2V, which is critical for the longevity and efficiency of lithium-ion batteries.
• Charge Control: It offers charge control features that include pre-charge conditioning, which can extend battery life and performance.
• Low Power Consumption: This device is designed to be energy-efficient, with a low quiescent current that minimizes power drain when in standby mode.
• Protection Features: The LM3420AM5-4.2 includes various protection mechanisms such as overcurrent protection, temperature monitoring, and under-voltage lockout, ensuring safe operation under different conditions.

Applications

The versatility of the LM3420AM5-4.2 makes it an ideal choice for a wide range of applications, including:

• Portable consumer electronics such as smartphones, tablets, and digital cameras
• Medical devices requiring reliable battery management
• Handheld industrial and professional equipment
• Uninterruptible power supplies (UPS) for critical systems

Technical Specifications

Parameter Value Output Voltage 4.2V Operating Temperature Range -40°C to +85°C Package Type SOT-23-5 Quiescent Current Low

Quality and Reliability

Texas Instruments is known for its commitment to quality, and the LM3420AM5-4.2 is no exception. Manufactured under stringent conditions, this product is designed to meet the high standards of performance and reliability that users expect from Texas Instruments.