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MCP1631VHVT-E/SS 数据表(PDF) 4 Page - Microchip Technology |
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MCP1631VHVT-E/SS 数据表(HTML) 4 Page - Microchip Technology |
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4 / 34 page  MCP1631/HV/MCP1631V/VHV DS22063B-page 4 © 2008 Microchip Technology Inc. Functional Block Diagram(1) MCP1631HV/VHV High Speed PIC PWM R S Q Q A1 + - VREF FB C1 + - CS/VRAMP OSCIN PVDD COMP PGND VEXT 2R 2.7V Clamp OT UVLO 100 kΩ 0.1 µA VDD R R R 10R A2 A3 +3.3V or +5.0V LDO 250 mA VIN AVDD_OUT / AVDD_IN VDD Shutdown Control A3 Remains On SHDN ISIN ISOUT VSIN VSOUT C2 + - VDD AGND OVIN Overvoltage Comp w/ Hysteresis Internal 1.2V VREF OSCDIS 100 kΩ Remove for MCP1631V and MCP1631VHV Options Internal Regulator for MCP1631HV and MCP1631VHV Options Only; For MCP1631 and MCP1631V AVDD_IN is input VDD VDD VDD VDD VDD Note 1: For Shutdown control, amplifier A3 remains functional so battery voltage can be sensed during discharge phase. 2: For HV options, internal Low Drop Out Regulator provides +3.3V or +5.0V bias to VDD. |
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