The SGM4056-6.8YTDB8G/TR is a linear charger designed for single-cell lithium-ion batteries. Manufactured by SG Micro Corp, this charger offers a compact and efficient solution for portable applications, ensuring batteries are charged safely and effectively.

Applications

• Portable Media Players
• Low-Power Chargers
• Wearable Devices
• Bluetooth Headsets
• Small Electronics

Features

• Preset 6.8V Overvoltage Protection
• Programmable Charge Current: Allows customization based on battery capacity.
• Constant Current/Constant Voltage (CC/CV) Charging: Provides optimal charging profile for Li-Ion batteries.
• Thermal Feedback: Regulates charge current to prevent overheating.
• Automatic Recharge: Automatically restarts charging when the battery voltage drops below a certain threshold.
• Status Indication: Provides visual indication of charging status.

Benefits

• Efficient Charging: CC/CV charging algorithm ensures fast and efficient charging of Li-Ion batteries.
• Safe Charging: Thermal feedback and overvoltage protection prevent damage to the battery and charging circuit.
• Flexible Design: Programmable charge current allows for use with a variety of battery capacities.
• Compact Solution: Small package size is ideal for portable applications.
• User-Friendly: Status indication provides clear information on charging progress.

Additional Details

The SGM4056-6.8YTDB8G/TR operates by providing a constant current (CC) until the battery voltage reaches a predefined level (typically 4.2V for Li-Ion). Once the voltage is reached, the charger switches to constant voltage (CV) mode, maintaining the voltage while the charging current decreases. This process ensures the battery is fully charged without being overcharged. The thermal feedback feature monitors the temperature of the charging circuit and reduces the charge current if the temperature exceeds a safe limit. This protects the battery and charger from overheating. Consult the datasheet for specific details on charge current programming, thermal regulation, and status indication.