The SGM41000-4.25YUDT6G/TR is a single-cell Li-ion/Li-polymer battery linear charger manufactured by SG Micro Corp. It is designed to charge a single-cell lithium-ion or lithium-polymer battery using a constant-current/constant-voltage (CC/CV) charging algorithm. This charger integrates power transistors and sensing resistors and does not require any external sensing resistor. It includes features like thermal regulation and reverse blocking protection.

Applications

• Portable Devices: Used in smartphones, tablets, and other battery-powered devices to charge Li-ion/Li-Polymer batteries.
• Wearable Devices: Employed in smartwatches, fitness trackers, and other wearable devices for charging batteries.
• Power Banks: Utilized in power banks to charge the internal battery.
• Bluetooth Headphones: Integrated into Bluetooth headphones and other wireless audio devices for charging.
• Small IoT Devices: Used in various IoT devices that are powered by Li-ion/Li-Polymer batteries.

Features

• Linear Charger: Uses a linear charging algorithm for simple and cost-effective battery charging.
• Constant-Current/Constant-Voltage (CC/CV) Charging: Provides optimal charging for Li-ion/Li-Polymer batteries.
• Integrated Power Transistors and Sensing Resistor: Reduces external component count and simplifies circuit design.
• Thermal Regulation: Reduces charging current to prevent overheating during high-power operation.
• Reverse Blocking Protection: Prevents battery discharge through the charger when the input voltage is removed.

Benefits

• Simplified Circuit Design: Integrated components and simple charging algorithm simplify circuit design.
• Thermal Protection: Thermal regulation prevents overheating and ensures reliable operation.
• Reverse Blocking Protection: Prevents battery discharge and protects the battery from damage.
• Cost-Effective Solution: Offers a cost-efficient way to charge single-cell Li-ion/Li-Polymer batteries.
• High Accuracy: Provides precise charging control for optimal battery performance.

Additional Details: The specific charging current, input voltage range, battery voltage, and other parameters should be verified from the official SG Micro Corp datasheet for the SGM41000-4.25YUDT6G/TR. The datasheet provides recommended external component values and layout guidelines. The -4.25 likely refers to the target charge voltage for the battery (4.25V). The YUDT6G/TR suffix likely specifies the package and tape and reel options, so refer to the datasheet for specific details.