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MCP73863 Datasheet(PDF) 2 Page - Microchip Technology |
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MCP73863 Datasheet(HTML) 2 Page - Microchip Technology |
2 / 28 page MCP73861/2/3/4 DS21893C-page 2 © 2005 Microchip Technology Inc. Typical Application Functional Block Diagram EN STAT1 STAT2 VSET VDD VSS TIMER PROG THERM THREF VBAT3 VBAT + – Single Lithium-Ion Cell 2, 3 1 MCP73861/3 5 6 7 8 4, 9, 13 10, 11 12 14 16 15 5V 6.19 k Ω 4.7µF 1.2A Lithium-Ion Battery Charger 4.7 µF 7.32 k Ω 0.1 µF + – Charge Termination Comparator Voltage Control Amplifier + – UVLO COMPARATOR VUVLO + – Temperature Comparators + – Bias and Reference Generator VUVLO VREF (1.2V) Power-On Delay VREF VREF Oscillator IREG/12 Constant-Voltage/ Recharge Comp. Precondition Control Charge_OK Precon VDD Charge Current Control Amplifier + – VREF VREF Precondition Comp. Charge Control, Charge Timers And Status Logic Drv Stat 2 Drv Stat 1 Charge_OK IREG/12 VDD1 THERM EN TIMER STAT1 STAT2 VBAT3 VSS1 PROG VSET THREF VBAT1 90 110 k Ω 10 k Ω 10 k Ω 100 k Ω 50 k Ω 50 k Ω G = 0.001 11 k Ω 1k Ω 600 k Ω (1.65 M Ω) 148.42 k Ω 1.58 k Ω VDD2 VBAT2 300.04 k Ω 10.3 k Ω (8.58 k Ω) 4k Ω Direction Control k Ω VSS2 VSS3 Values in ( ) reflect the MCP73862/4 devices |
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