Microchip | MCP73837-FCI/UN

The MCP73837-FCI/UN is a fully integrated advanced stand-alone Li-Ion/Li-Polymer battery chargers with autonomous power source selection.

The MCP73837 is fully specified over the ambient temperature range of -40°C to +85°C and are are available in a 10-Lead, 3 mm x 3 mm, DFN package or in a 10-Lead MSOP package.

Features:

• High Accuracy Preset Voltage Regulation: + 0.5%
• Available Voltage Regulation Options:
• 4.20V, 4.35V, 4.4V, or 4.5V
• Complete Linear Charge Management Controller:
• Autonomous Power Source Selection
• Integrated Pass Transistors
• Integrated Current Sense
• Integrated Reverse Discharge Protection
• Constant Current (CC) / Constant Voltage (CV) Operation with Thermal Regulation
• Selectable USB-Port Charge Current:
• Low: 1 Unit Load / High: 5 Unit Loads
• Programmable AC-Adapter Charge Current:
• 15 mA - 1000 mA
• Two Charge Status Outputs
• Power-Good Monitor: MCP73837
• Timer Enable: MCP73838
• Automatic Recharge:
• Selectable Voltage Threshold
• Automatic End-of-Charge Control:
• Selectable Charge Termination Current Ratio
• Selectable Safety Timer Period
• Preconditioning of Deeply Depleted Cells - can be disabled
• Battery Cell Temperature Monitor
• UVLO (Undervoltage Lockout)
• Automatic Power-Down when Input Power is Removed
• Low-Dropout (LDO) Linear Regulator Mode

Applications:

• Smart Phones and Personal Data Assistants (PDA)
• Portable Media Players(PMP)
• Ultra Mobile Devices(UMD)
• Digital Cameras
• MP3 Players
• Bluetooth Headsets
• Handheld Medical Devices
• AC/USB Dual Source Li-Ion Battery Chargers