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DM8885

National Semiconductor
Part Number DM8885
Manufacturer National Semiconductor
Description MOS to high voltage cathode buffer
Published Oct 11, 2017
Detailed Description Display Drivers o ~ 00 00 00 en DM8885 MOS to high voltage cathode buffer general discription The DM8885 mterfaces MO...
Datasheet PDF File DM8885 PDF File

DM8885
DM8885

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.
Each current source is ratloed to the b-output current as required for even Illumination of all segments.
Output currents may be varied over the 0.
2 to 1.
5 mA range for drivmg various tube types or multiplex operation The output current IS adjusted by connecting a program resistor (Rp) from Vee to the program Input- features • Current source outputs • Adjustable output currents 0.
2 to 1.
5 mA • High output breakdown voltage ...


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