The DS2761BX, manufactured by Dallas Semiconductor, is a PMIC (Power Management Integrated Circuit) specifically designed for battery management. It's a single-cell, stand-alone, battery-pack protector that provides overvoltage, undervoltage, and overcurrent protection for lithium-ion (Li+) battery packs. It also integrates a current accumulator which enables gauging of the battery's remaining capacity.

Applications

• Li-Ion battery packs in portable devices.
• Smartphones and tablets.
• Digital cameras and camcorders.
• MP3 players and portable media players.
• Handheld gaming consoles.

Features

• Overvoltage Protection: Disconnects the battery from the load when the battery voltage exceeds a pre-set limit, preventing damage to the battery and the device.
• Undervoltage Protection: Disconnects the battery from the load when the battery voltage drops below a pre-set limit, preventing deep discharge and extending battery life.
• Overcurrent Protection: Limits the current drawn from the battery, protecting the battery and the device from excessive current draw.
• Short-Circuit Protection: Immediately disconnects the battery from the load in case of a short circuit, preventing catastrophic failure.
• Current Accumulator: Integrates a current accumulator to estimate remaining battery capacity.
• Low Standby Current: Minimizes battery drain when the device is not in use.

Benefits

• Enhanced Battery Life: Prevents overcharging, deep discharge, and overcurrent conditions, extending the lifespan of the battery.
• Improved Device Safety: Protects the device from damage due to battery-related issues, ensuring user safety.
• Accurate Battery Gauging: Provides accurate information about the remaining battery capacity, allowing users to manage their device usage effectively.
• Reduced System Cost: Integrates multiple protection features into a single chip, reducing the number of external components required and lowering system cost.
• Increased Reliability: Robust design and comprehensive protection features ensure reliable operation even in demanding conditions.

The DS2761BX is a crucial component for ensuring the safe and efficient operation of Li-Ion battery packs in portable devices. Its integrated protection features and current accumulator make it a cost-effective and reliable solution for battery management.