Datenblatt-Suchmaschine für elektronische Bauteile |
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TC682 Datenblatt(PDF) 1 Page - Microchip Technology |
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TC682 Datenblatt(HTML) 1 Page - Microchip Technology |
1 / 14 page © 2006 Microchip Technology Inc. DS21453C-page 1 TC682 Features: • 99.9% Voltage Conversion Efficiency • 92% Power Conversion Efficiency • Wide Input Voltage Range: - +2.4V to +5.5V • Only 3 External Capacitors Required • 185 μA Supply Current • Space-Saving 8-Pin SOIC and 8-Pin PDIP Packages Applications: • -10V from +5V Logic Supply • -6V from a Single 3V Lithium Cell • Portable Handheld Instruments • Cellular Phones • LCD Display Bias Generator • Panel Meters • Operational Amplifier Power Supplies Device Selection Table General Description: The TC682 is a CMOS charge pump converter that provides an inverted doubled output from a single positive supply. An on-board 12 kHz (typical) oscillator provides the clock and only 3 external capacitors are required for full circuit implementation. Low output source impedance (typically 140 Ω), provides output current up to 10 mA. The TC682 fea- tures low quiescent current and high efficiency, making it the ideal choice for a wide variety of applications that require a negative voltage derived from a single positive supply (for example: generation of -6V from a 3V lithium cell or -10V generated from a +5V logic supply). The minimum external parts count and small physical size of the TC682 make it useful in many medium- current, dual voltage analog power supplies. Functional Block Diagram Package Type Part Number Package Operating Temp. Range TC682COA 8-Pin SOIC 0°C to +70°C TC682CPA 8-Pin PDIP 0°C to +70°C TC682EOA 8-Pin SOIC -40°C to +85°C TC682EPA 8-Pin PDIP -40°C to +85°C GND + – + – + GND VIN VOUT = -(2 x VIN ) All Caps = 3.3 μF TC682 +2.4V < VIN < +5.5V VOUT C1+ VIN C2+ C1– C2– COUT VOUT C1 C2 1 2 3 4 8 7 6 5 TC682CPA TC682EPA NC GND VOUT C1+ 1 2 3 4 8 7 6 5 TC682COA TC682EOA 8-Pin PDIP 8-Pin SOIC VIN C2+ C1– C2– NC GND VOUT C1+ VIN C2+ C1– C2– Inverting Voltage Doubler |
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Ähnliche Beschreibung - TC682 |
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