Description

The MCP7385X devices are highly-advanced, linear charge management controllers, for use in spacelimited, cost-sensitive applications. The MCP73853 combines high-accuracy constant-voltage, constantcurrent regulation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, internal current sensing, reverse blocking protection and charge status and fault indication in a space-saving 16-lead, 4x4 QFN package.

Features

• Linear Charge Management Controllers

- Integrated Pass Transistor

- Integrated Current Sense

- Reverse Blocking Protection

• High-Accuracy Preset Voltage Regulation: + 0.5

• Two Selectable Voltage Regulation Options: - 4.1V, 4.2V

• Programmable Charge Current

• USB Compatible Charge Current Settings

• Programmable Safety Charge Timers

• Preconditioning of Deeply Depleted Cells

• Automatic End-of-Charge Control

• Optional Continuous Cell Temperature Monitoring

MCP73853

• Charge Status Output for Direct LED Drive

• Fault Output for Direct LED Drive

MCP73853

• Automatic Power-Down

• Thermal Regulation

• Temperature Range: -40°C to +85°C

• Packaging:

- 16-Lead, 4x4 mm QFN (MCP73853)

- 10-Lead, 3x3 mm DFN (MCP73855)

Applications

• Lithium-Ion/Lithium-Polymer Battery Chargers

• Personal Data Assistants (PDAs)

• Cellular Telephones

• Hand-Held Instruments

• Cradle Chargers

• Digital Cameras

• MP3 Players

• Bluetooth Headsets

• USB Chargers