LB1240

Ordering number:ENN843E Monolithic Digital IC LB1240 Fluorescent Display Tube Driver Overview The LB1240 has been designed for interfacing low-level digital devices to fluorescent display tubes. Its 8-circuit independent Darlington output stage is used for digit and segment drivers. Equivalent pull-down resistors are built in ; externally connected resistors to prevent ghosts are no longer required. Output is activated when input voltages are at a low level, making the IC an ideal interface for Nchannel MOS devices. Package Dimensions unit:mm 3007B-DIP18 [LB1240] 24.0 18 10 0.51min (3.25) 7.62 6.4 3.3 3.85max 0.25 Features 8 circuit independent Darlington driver. Capable of driving digits or segments. Built-in pull-down sink current. Rated at 55V/30mA Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Maximum supply voltage Output supply voltage Input supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max VOUT VIN IOUT Pd max Topr Tstg VIN>GND 1 (1.84) 2.54 Conditions Allowable Operating Ranges at Ta = 25˚C Parameter Supply voltage Input H-level voltage Input L-level voltage Symbol VCC VIH VIL Conditions VIN>GND, IOUT=–30mA IOUT≤–30µA 0.5 9 1.2 SANYO : DIP18 Ratings –0.3 to +55.0 –0.3 to VCC VCC–10 to VCC –30 1.13 –20 to +75 –40 to +150 Unit V V V mA W ˚C ˚C Ratings 4.75 to 55.0 VCC–10 to VCC–2.8 VCC–0.45 to VCC Unit V V V Any and all SANYO products described or c...