描述 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.

特性 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