Maxim Integrated MAX1874ETE+T Battery Charger Controller

The MAX1874ETE+T from Maxim Integrated is a highly efficient and versatile battery charger controller designed to manage single-cell lithium-ion (Li+) batteries. Its compact design and advanced features make it an ideal choice for portable electronic devices that require reliable battery management systems.

This intelligent charge management device operates over a wide input voltage range and integrates a current-sense amplifier, reverse-blocking diode, and a MOSFET pass transistor. Its high level of integration simplifies the design process and reduces the number of external components required, which can save valuable board space in space-constrained applications.

The MAX1874ETE+T supports a variety of charging features that enhance the safety and longevity of the battery. It includes prequalification charging for deeply discharged batteries, a top-off charge to maximize battery capacity, and an automatic recharge feature. The charging parameters are programmable via external resistors, allowing designers to tailor the charging process to the specific needs of their application.

One of the key advantages of the MAX1874ETE+T is its thermal regulation, which protects the battery by reducing charge current if the device temperature rises to an unacceptable level. This ensures safe operation even under high power or high ambient temperature conditions.

The device also includes a charge status output that can be used to drive an LED indicator or interface with a microcontroller, providing real-time information about the charging process. This feedback is crucial for creating user-friendly devices that can communicate their charging status effectively.

Overall, the MAX1874ETE+T is a highly reliable and efficient solution for charging single-cell Li+ batteries. With its integrated features and programmable flexibility, it stands out as a top choice for designers looking to optimize their battery charging systems in portable electronic devices.

Key Features:

• Single-Cell Li+ Battery Charger Controller
• Wide Input Voltage Range
• Integrated Current-Sense Amplifier, Reverse-Blocking Diode, and MOSFET
• Programmable Charge Parameters
• Thermal Regulation for Safe Charging
• Charge Status Output for LED or Microcontroller Interface