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DM8885 Datasheet MOS to high voltage cathode buffer

Manufacturer: National Semiconductor (now Texas Instruments)

Overview

Display Drivers o ~ 00 00 00 en DM8885 MOS to high voltage cathode buffer general discription The DM8885 mterfaces MOS calculator or counterlatch-decoder-drlver CirCUits directly to sevensegment high-voltage gas-filled dlsplays_ The SIX inputs A, B, D, E, F, G are decoded to drive the seven segments of the tube.

Each output constitutes a sWltchable, adjustable current source which prOVides constant current to the tube segment, even With high tube anode supply tolerance or fluctuation.

These current sources have a voltage compliance from 3V to at least 80V.

Key Features

  • Current source outputs.
  • Adjustable output currents 0.2 to 1.5 mA.
  • High output breakdown voltage.