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MCP73864 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP73864 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 28 page  © 2005 Microchip Technology Inc. DS21893C-page 1 MCP73861/2/3/4 Features • Linear Charge Management Controllers - Integrated Pass Transistor - Integrated Current Sense - Reverse-Blocking Protection • High-Accuracy Preset Voltage Regulation: + 0.5% • Four Selectable Voltage Regulation Options: - 4.1V, 4.2V – MCP73861/3 - 8.2V, 8.4V – MCP73862/4 • Programmable Charge Current: 1.2A Maximum • Programmable Safety Charge Timers • Preconditioning of Deeply Depleted Cells • Automatic End-of-Charge Control • Optional Continuous Cell Temperature Monitoring • Charge Status Output for Direct LED Drive • Fault Output for Direct LED Drive • Automatic Power-Down • Thermal Regulation • Temperature Range: -40°C to +85°C • Packaging: 16-Pin, 4 x 4 QFN 16-Pin SOIC Applications • Lithium-Ion/Lithium-Polymer Battery Chargers • Personal Data Assistants (PDAs) • Cellular Telephones • Hand-Held Instruments • Cradle Chargers •Digital Cameras • MP3 Players Description The MCP7386X family of devices are highly advanced linear charge management controllers for use in space- limited, cost-sensitive applications. The devices com- bine high-accuracy, constant voltage and current regu- lation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, internal current sensing, reverse-blocking protection, charge status and fault indication in either a space- saving 16-pin, 4 x 4 QFN or 16-pin SOIC package. The MCP7386X provides a complete, fully-functional, stand- alone charge management solution with a minimum number of external components. The MCP73861/3 is intended for applications utilizing single-cell Lithium-Ion or Lithium-Polymer battery packs, while the MCP73862/4 is intended for dual series cell Lithium-Ion or Lithium-Polymer battery packs. The MCP73861/3 have two selectable voltage- regulation options available (4.1V and 4.2V), for use with either coke or graphite anodes and operate with an input voltage range of 4.5V to 12V. The MCP73862/4 have two selectable voltage-regulation options avail- able (8.2V and 8.4V), for use with coke or graphite anodes, and operate with an input voltage range of 8.7V to 12V. The only difference between the MCP73861/2 and MCP73863/4, respectively, is the function of the charge status output (STAT1) when a charge cycle has been completed. The MCP73861/2 flash the output, while the MCP73863/4 turn the output off. Refer to Section 5.2.1 “Charge Status Outputs (STAT1,STAT2)”. The MCP7386X family of devices are fully specified over the ambient temperature range of -40°C to +85°C. Package Types VDD1 VBAT1 1 2 3 4 14 15 16 VDD2 VSET VBAT3 VBAT2 56 7 8 9 10 11 12 13 VSS1 MCP73861 MCP73862 MCP73863 MCP73864 VSS3 VDD1 VBAT3 THERM EN TIMER STAT1 STAT2 1 2 3 4 14 15 16 PROG VDD2 VSET VSS1 THREF VBAT1 VBAT2 5 6 7 89 10 11 12 13 VSS2 VSS3 16-Pin SOIC 16-Pin QFN Advanced Single or Dual Cell, Fully Integrated Li-Ion / Li-Polymer Charge Management Controllers |
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