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TC828A データシート(PDF) 1 Page - TelCom Semiconductor, Inc |
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TC828A データシート(HTML) 1 Page - TelCom Semiconductor, Inc |
1 / 8 page TC828A-1 5/1/00 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices. TC828A Switched Capacitor Voltage Converter FEATURES s Charge Pump in 5-Pin SOT-23A Package s >95% Voltage Conversion Efficiency s Voltage Inversion and/or Doubling s Low 38 µA Quiescent Current s Operates from +1.8V to +5.5V s Up to 25mA Output Current s Only Two External Capacitors Required s Lower Power Version of TCM828 APPLICATIONS s LCD Panel Bias s Cellular Phones s Pagers s PDAs, Portable Dataloggers s Battery-Powered Devices GENERAL DESCRIPTION The TC828A is a CMOS “charge-pump” voltage con- verter in an ultra-small 5-Pin SOT-23A package. It can invert and/or double an input voltage that can range from +1.8V to +5.5V. Conversion efficiency is typically >95%, and switch- ing frequency is 12KHz. The external component requirement is only two ca- pacitors (10 µF nominal) for standard voltage inverter appli- cations. With a few additional components a positive doubler can also be built. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Supply current is 38 µA typically. The TC828A is available in a 5-Pin SOT-23A surface mount package. TYPICAL OPERATING CIRCUIT ORDERING INFORMATION Part No. Package Temp. Range TC828AECT 5-Pin SOT-23A – 40 °C to +85°C NOTE: 5-Pin SOT-23A is equivalent to EIAJ-SC74A. PIN CONFIGURATION 5-Pin SOT-23A NOTE: *5-Pin SOT-23A is equivalent to EIAJ SC-74A Voltage Inverter TC828A VIN V– OUTPUT C+ C– C1 C2 INPUT GND OUT C+ C– OUT TC828ECT 1 2 3 5 GND VIN 4 |
同様の部品番号 - TC828A |
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同様の説明 - TC828A |
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