DS55493

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 7561 – 1 Dual-In-Line Package Truth Table CE 0 0 1 X e Don’t care VIN 1 0 X IOUT ON OFF OFF TL F 7561 – 2 Order Number DS55493J DS75493J or DS75493N See NS Package Number J16A or N16A C1995 National Semiconductor Corporation TL F 7561 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 Input Voltage Output Voltage 10V 10V VCC Operating Conditions Min Supply Voltage VCC VSS Temperature TA DS75493 DS55493 32 65 0 b 55 Max 88 88 a 70 a 125 Units V V C C b 65 C to a 150 C Storage Temperature Range b 25 mA Output Current (IOUT) Maximum Power Dissipation at 25 C Cavity Package 1371 mW Molded Package 1280...