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Part Number: MCP73853
Description: The MCP7385X devices are highly advanced linear charge management controllers for use in spacelimited,...
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MCP73853
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General Description
MCP73853 General 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, 4 x 4 QFN package.
The MCP73855 employs all the features of the MCP73853, with the exception of the cell temperature monitor and one status output. The MCP73855 is offered in a space-saving 10-lead, 3 x 3 DFN package.
The MCP73853 and MCP73855 are designed specifically for USB applications, adhering to all the specifications governing the USB power bus.
The MCP7385X devices provide two selectable voltage regulation options (4.1V or 4.2V) for use with either coke or graphite anodes.
The MCP7385X devices provide complete, fullyfunctional, charge management solutions, operating with an input voltage range of 4.5V to 5.5V.
The MCP7385X devices are fully specified over the ambient temperature range of -40°C to +85°C.
MCP73853 Maximum Ratings
Absolute Maximum Ratings*
VDD1,2...........................................................................6.5V
All Inputs and Outputs w.r.t. VSS .........-0.3 to (VDD + 0.3)V
Maximum Junction Temperature, TJ ......... Internally Limited
Storage temperature .............................-65°C to +150°C
ESD protection on all pins:
Human Body Model (1.5kW in Series with 100pF) .... 4 kV
Machine Model (200pF, No Series Resistance) ............400V
*Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
MCP73853 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)
MCP73853 Typical Application
• 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
• Personal Data Assistants (PDAs)
• Cellular Telephones
• Hand-Held Instruments
• Cradle Chargers
• Digital Cameras
• MP3 Players
• Bluetooth Headsets
• USB Chargers
MCP73853 Connection Diagram
MCP73853
PDF/DataSheet Download
- Datasheet: MCP73853
- File Size: 375531 KB
- Manufacturer: MICROCHIP
- Click here to Download
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MCP73844
The MCP73844 combines high accuracy constant-voltage (0.5% max), constant-current regulation, cell preconditioning, advanced safety timers, automatic charge termination, and charge status indication in a space saving MSOP-8 package. The device provides a com...
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