DS8654 Datasheet | National Semiconductor

Description DS8654 is an 8-digit driver with emitter follower outputs It can source up to 50 m A at a low impedance and operates with a constant internal drive current over a wide range of power supply from 4 5V to 33V The DS8654 can be used to drive electrical or mechanical multiplexed or unmultiplexed display systems It can be used as a segment driver for mon cathode displays with external current limiting resistors or can drive incandescent or fluorescent displays directly both digits (anodes) and segments (grids) It will be necessary to run the device at a lower duty cycle to keep the maximum package dc power dissipation less than 600 m W while operating all 8 outputs at high supply voltage and large source current The inputs are MOS patible and eliminate the need for level shifting since inputs are referenced to the most negative supply of system System Description The DS8654 is specifically designed to operate a thermal printing head for calculator or other uses In this application the same segment in each digit is selected at the same time reducing the overall time for a plete print cycle The DS8654 is an 8-digit driver With a 15-digit print head two of the DS8654 are required Connection Diagram Dual-In-Line Package Top View Order Number DS8654N See NS Package Number N18A TL F 5833 - 1 C1995 National Semiconductor Corporation TL F 5833 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note 1) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 36V Input Voltage 36V Output Voltage Storage Temperature Range VCC b 36V b65 C to a150 C Maximum Power Dissipation at 25 C Molded Package 1563 m W Lead Temperature (Soldering 4 seconds) 260 C Derate molded package 12 5 m W C above 25 C Operating Conditions Min Supply Voltage (VCC) Temperature (TA) 45 0 Max 33 a70 Units V C Electrical Characteristics (Notes 2 and...