DS55493 Datasheet - National Semiconductor

DS55493 Quad LED Segment Driver

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 ac.

DS55493 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 7561

* 1 Dual-In-Line Package Truth Table CE 0 0 1 X e Don’t care VIN 1 0 X

DS55493_NationalSemiconductor.pdf