Maxim Integrated's MAX1757EAI+ Battery Charger

The MAX1757EAI+ from Maxim Integrated is a highly efficient and versatile integrated circuit designed specifically for charging single-cell lithium-ion (Li+) batteries. This advanced battery charger IC is ideal for portable electronic devices where space is at a premium and efficient charging is essential. With its small form factor and robust feature set, the MAX1757EAI+ provides a comprehensive charging solution for a wide range of applications.

Key Features

• High-Accuracy Voltage Regulation: The MAX1757EAI+ ensures precise charging with a voltage regulation accuracy of ±0.75%, which is critical for maximizing battery life and performance.
• Adjustable Charge Current: Users can set the charge current from 1mA up to 2A with an external resistor, providing flexibility for different battery capacities and thermal management requirements.
• Integrated Pass Element: The device includes an internal pass transistor, which reduces external component count and simplifies the circuit design.
• Thermal Regulation: To protect the battery and circuitry, the MAX1757EAI+ features thermal regulation that automatically reduces charge current under high temperature conditions.
• Charge Status Indicators: It offers an open-drain charge status output to drive an external LED, providing a visual indication of the charging process.
• Prequalification Charging: The IC initiates prequalification charging for deeply discharged batteries, ensuring safe recovery of such batteries before applying the full charge current.

Applications

The MAX1757EAI+ is suitable for a variety of applications that require efficient and reliable battery charging. These include handheld devices, medical equipment, portable media players, and any other battery-powered devices that utilize a single-cell Li+ battery.

Package and Availability

This IC is offered in a 28-pin SSOP (Shrink Small Outline Package) which provides a compact footprint for space-constrained designs. The MAX1757EAI+ is available for purchase through Maxim Integrated's authorized distributors and is supported by comprehensive technical documentation for ease of integration into your design.

With its combination of high accuracy, flexibility, and integrated features, the MAX1757EAI+ stands out as a top choice for designers looking to implement an efficient charging solution in their next-generation portable devices.