Maxim Integrated's MAX1558ETB+T: High-Efficiency, Dual-Input Battery Charger

The MAX1558ETB+T from Maxim Integrated is a state-of-the-art, dual-input battery charger designed for space-constrained applications. This compact, high-efficiency integrated circuit is engineered to provide a seamless charging solution for single-cell lithium-ion (Li+) batteries. With its advanced features and robust performance, the MAX1558ETB+T is an ideal choice for portable electronics, such as smartphones, tablets, digital cameras, and other USB-powered gadgets.

Key Features

• Dual-Input Power Sources: The device supports charging from both USB and AC adapter sources, automatically selecting the appropriate source without user intervention.
• High Charging Current: It provides up to 1.5A of charging current for AC adapter input and 500mA for USB input, ensuring rapid and efficient battery charging.
• Thermal Regulation: To protect the battery and circuitry, the MAX1558ETB+T incorporates thermal regulation, which reduces charge current if the die temperature rises to a critical level.
• Charge Status Indicators: Integrated status outputs allow for easy monitoring of the charging process with simple LED indicators.
• Smart Battery Detection: The charger can detect the presence of a battery and initiate charging only when a battery is connected.
• Low Dropout Voltage: The device features a low dropout voltage, ensuring effective charging even with low input voltages.
• Protection Features: It includes multiple safety features such as overvoltage protection, short-circuit protection, and battery temperature monitoring for safe and reliable operation.

Compact and Flexible Design

The MAX1558ETB+T comes in a tiny, 10-pin TDFN (3mm x 3mm) package, making it a perfect fit for portable applications where board space is at a premium. Its flexible design allows for easy integration into existing and new designs, simplifying the development process for engineers.

Highly Integrated Solution

This charger minimizes the need for external components due to its integrated power transistors, current-sense circuitry, and reverse-blocking protection. As a result, the MAX1558ETB+T not only saves space but also reduces the bill of materials and overall system cost.

With its comprehensive set of features, the MAX1558ETB+T by Maxim Integrated delivers an efficient and secure charging solution that enhances the user experience by ensuring quick and safe battery charging for a wide array of portable devices.