Maxim Integrated Product Overview: MAX1556ETB

The MAX1556ETB from Maxim Integrated is a highly-efficient, compact power-management integrated circuit (IC) designed to cater to the demanding needs of portable electronic devices. This versatile chip offers a dual-input, USB/AC adapter, linear battery charger that is capable of operating with either a USB source or an AC adapter, making it an ideal solution for charging a wide range of lithium-ion (Li+) batteries.

Key Features

• Automatic Power Source Selection: The MAX1556ETB seamlessly switches between USB and AC adapter power sources without interruption to the charging process, ensuring consistent battery charging.
• High Charging Current: This IC is capable of providing up to 4A of charging current when using an AC adapter, ensuring quick and efficient charging of the battery.
• Thermal Regulation: To protect the IC and the battery, the MAX1556ETB includes a thermal regulation feature that reduces charge current during high-temperature conditions.
• Charge Status Indicators: The device includes outputs that can drive LEDs to indicate charging status and end-of-charge (EOC) conditions, providing clear visual feedback to the user.

Applications

• Smartphones and Tablets
• Portable Media Players
• Handheld Devices
• Wearable Electronics

The MAX1556ETB comes in a space-saving, 10-pin TDFN (3mm x 3mm) package, making it an excellent choice for space-constrained applications. Its high integration level includes internal MOSFETs and current-sense circuitry, which minimizes external component count and simplifies the design process. Additionally, it operates over a wide input voltage range and includes under-voltage lockout, over-voltage protection, and charge timer for enhanced safety and reliability.

With its advanced features and compact form factor, the MAX1556ETB from Maxim Integrated stands out as a sophisticated power management solution for designers looking to optimize the performance and extend the battery life of their portable electronic products.