DS55493 DS75493 Quad LED Segment Driver
April 1990
DS55493 DS75493 Quad LED Segment Driver
General Description
The DS55493 DS75493 is a quad LED segment driver It is designed to interface between MOS IC’s and LED’s An external resistor is required for each segment to drive the output current which is approximately equal to 0 7V RL and is relatively constant independent of supply variations Blanking can be achieved by taking the chip enable (CE) to a logical ‘‘1’’ level
Features
Y Y Y Y Y Y
Low
voltage operation Low input current for MOS compatibility Low standby power Display blanking capability Output current regulation Quad high gain circuits
Schematic and Connection Diagrams
TL F 75...