Product Overview: LM3420M5X-4.2/NOPB

The LM3420M5X-4.2/NOPB is a high-quality battery charge controller integrated circuit (IC) designed and manufactured by Texas Instruments. This precision device is specifically engineered for managing the charging process of lithium-ion (Li-ion) batteries, which are widely used in modern portable electronics due to their high energy density and long life cycle.

This charge controller IC is particularly suitable for single cell Li-ion or Lithium-polymer battery packs, ensuring that the charging process is executed safely and efficiently. The LM3420M5X-4.2/NOPB operates with a constant-current/constant-voltage charge algorithm, which is the preferred method for charging these types of batteries.

Key Features

• Voltage Precision: The LM3420M5X-4.2/NOPB offers a precise end-of-charge control voltage of 4.2V, which is critical for the longevity and safety of Li-ion batteries.
• Package Type: This IC comes in a small SOT-23-5 package, making it an excellent choice for compact electronic designs where space is at a premium.
• Temperature Range: It operates over a wide temperature range, from -40°C to 85°C, allowing for reliable performance in various environmental conditions.
• Lead-Free and RoHS Compliant: The NOPB designation indicates that this product is lead-free and compliant with the Restriction of Hazardous Substances (RoHS) directive, making it environmentally friendly and suitable for use in a wide range of markets.

Applications

The LM3420M5X-4.2/NOPB is versatile and can be used in a variety of applications, including:

• Portable electronics such as smartphones, tablets, and laptops
• Medical devices requiring reliable battery management
• Handheld instrumentation and industrial equipment
• Uninterruptible power supplies (UPS) and backup power systems

With its precision charging capabilities and robust feature set, the LM3420M5X-4.2/NOPB from Texas Instruments is an ideal solution for designers looking to incorporate reliable battery charging functionality into their products.