Microchip | MCP73811T-420I/OT

The MCP73811T-420I/OT is a 6V, simple, miniature single-cell, fully integrated Li-Ion/Li-Polymer Charge Management Controller designed for use in space limited and cost sensitive applications.

This device provide specific charge algorithms for single cell Li-Ion or Li-Polymer battery to achieve optimal capacity in the shortest charging time possible.

Features:

• Complete Linear Charge Management Controller
• Integrated Pass Transistor
• Integrated Current Sense
• Integrated Reverse Discharge Protection
• Constant Current / Constant Voltage Operation with Thermal Regulation
• High Accuracy Preset Voltage Regulation: + 1%
• Voltage Regulation: 4.20V
• Selectable Charge Current:
• MCP73811: 85 mA / 450 mA
• Programmable Charge Current:
• MCP73812: 50 mA - 500 mA
• Minimum External Components Required:
• MCP73811: 2 Ceramic Capacitors
• MCP73812: 2 Ceramic Capacitors and 1 Resistor
• No Preconditioning
• No End-of-Charge Control
• No Undervoltage Lockout (UVLO)
• Automatic Power-Down when Input Power Removed
• Active High Charge Enable
• Temperature Range:
• -40°C to +85°C
• Packaging:
• 5-Lead SOT-23

Applications:

• Low-Cost Lithium-Ion/Lithium-Polymer Battery Chargers
• Rechargeable Toys
• Electronic Cigarettes
• Bluetooth Headsets
• USB Chargers