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BU2879AK Datasheet(PDF) 1 Page - Rohm |
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BU2879AK Datasheet(HTML) 1 Page - Rohm |
1 / 5 page 1 Standard ICs FL tube driver BU2879AK The BU2879AK is a driver IC for fluorescent displays. It is equipped with 26 high-voltage withstand outputs and can display from 11 segments of 15 characters to 16 segments of 8 characters. This IC is equipped with a key scanning function, and general-purpose input pins, and is ideal for front panels in VTRs and other equipment. A serial interface allows functions to be controlled from a microcomputer. •Applications VCRs •Absolute maximum ratings (Ta = 25°C, VSS = 0V) Parameter Applied voltage 1 Applied voltage 2 Input voltage Power dissipation VDD VEE VIN Pd – 0.3 ~ + 7.0 VDD + 0.3 ~ VDD – 40 – 0.3 ~ VDD + 0.3 850∗ V Symbol Limits Unit V V mW Operating temperature Topr – 25 ~ + 75 °C Storage temperature Tstg – 55 ~ + 125 °C Note) Operation is not guaranteed at these values. Note) Power dissipation is reduced by 8.5mW for each increase in Ta of 1 °C over 25°C. ∗ When mounted on a 70 × 70 × 1.6mm glass epoxy board •Features 1) High withstanding voltage output. 2) Display modes: 11S × 15G ~ 16S × 8G. 3) Variable display luminance (7 steps). 4) 3-wire serial interface. 5) Key scanning function (6 × 4). 6) Internal pull-down resistance (high voltage withstand output). 7) QFP 44 package. •Recommended operating conditions (Ta = 25°C, VSS = 0V) Parameter Operating power supply voltage 1 VDD 4.5 5.0 5.5 V Operating power supply voltage 2 VEE VDD – 37 VDD – 35 VDD – 0 V Symbol Min. Typ. Max. Unit |
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