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MCP73861 Datasheet(PDF) 19 Page - Microchip Technology |
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MCP73861 Datasheet(HTML) 19 Page - Microchip Technology |
19 / 34 page 2004-2013 Microchip Technology Inc. DS21893F-page 19 MCP73861/2/3/4 6.0 APPLICATIONS The MCP7386X is designed to operate in conjunction with a host microcontroller or in stand-alone applica- tions. The MCP7386X provides the preferred charge algorithm for Lithium-Ion and Lithium-Polymer cells Constant-current followed by Constant-voltage. Figure 6-1 illustrates a typical stand-alone application circuit, while Figures 6-2 and 6-3 illustrate the accompanying charge profile . FIGURE 6-1: Typical Application Circuit. FIGURE 6-2: Typical Charge Profile. EN STAT1 VSET VSS3 VDD1 VDD2 VSS2 TIMER PROG VBAT3 VBAT2 VBAT1 CTIMER Unregulated Wall Cube RPROG RT1 RT2 + – Single Lithium-Ion Cell VSS1 1 2 3 4 MCP73861 14 15 16 5678 9 10 11 12 13 1.5K Regulation Voltage (VREG) Regulation Current (IREG) Transition Threshold (VPTH) Precondition Current (IPREG) Precondition Safety Timer Fast Charge Safety Timer Elapsed Time Termination Timer Charge Voltage Preconditioning Mode Constant-Current Mode Constant-Voltage Mode Charge Current Termination Current (ITERM) |
Similar Part No. - MCP73861_13 |
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Similar Description - MCP73861_13 |
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