MICROCHIP MCP73831T-2DCI/OT SOT-23-5 Li-Ion/Li-Pol Battery Charger IC

The MICROCHIP MCP73831T-2DCI/OT is a miniature, fully integrated single-cell Li-ion and Li-polymer battery charge management controller. Designed for space-limited and cost-sensitive applications, it employs an intelligent constant-current/constant-voltage charge algorithm with configurable preconditioning and termination points.

This highly integrated solution requires just one external resistor to set the constant charge current, simplifying design and reducing component count. A key protective feature is its on-chip thermal regulation, which intelligently limits charge current based on die temperature during high-power or high-ambient conditions. This safeguards the device's reliability while optimising total charge cycle time.

Key Features & Specifications

• High Accuracy Regulation: Features a preset output voltage regulation with high accuracy of ±0.75%.
• User-Programmable Charge Current: The charge current is easily set using a single external resistor.
• Integrated Status Indication: The charge status output is capable of directly driving an LED for clear visual feedback.
• Comprehensive Protection: Includes under-voltage lockout, automatic power-down, and thermal regulation for safe and reliable operation.
• Configurable Charging: Offers selectable options for preconditioning and end-of-charge current ratio.
• Wide Operating Range: Functions reliably across an extensive temperature range from -40°C to +85°C.

Important Handling Information

This component is an ESD-sensitive device; proper electrostatic discharge precautions must be observed during handling. Please note that market demand for this product may lead to extended lead times and fluctuating delivery dates.