National Semiconductor DS55493 DS75493 Quad LED Segment Driver Data Sheet
Summary
The DS55493/DS75493 is a highly efficient quad LED segment driver engineered to seamlessly connect MOS integrated circuits with multiple LEDs. Ideal for designers building electronic displays that require low power consumption, stable operation, and robust current regulation. This comprehensive guide provides detailed electrical characteristics, operational parameters (including voltage ranges and timing), technical specifications, and connection diagrams necessary for accurate integration into complex embedded systems.
Page 1 Text Content
April
DS55493/DS75493 Quad LED Segment Driver General Description Features
The DS55493/DS75493 is quad LED segment driver. It is Low voltage operation
designed to interface between MOS IC’s and LED’s. An ex- Low input current for MOS compatibility ternal resistor is required for each segment to drive the out- Low standby power put current which is approximately equal to 0.7V/RL and is Display blanking capability relatively constant, independent of supply variations. Blank-
Output current regulation
ing can be achieved by taking the chip enable (CE) to
Quad high gain circuits
logical ‘‘1’’ level.
Schematic and Connection Diagrams
TL/F/7561–1
Dual-In-Line Package
Truth Table
CE VIN IOUT
ON OFF OFF
Don’t care
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.
Page Summary Contents For National Semiconductor DS55493 DS75493 Quad LED Segment Driver Data Sheet
Manual Details
| Brand | National |
|---|---|
| Pages | 4 |
| File Size | 106.30 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What is the optimal voltage range for this segment driver?
The supply voltage (Vcc) must operate within a range of 3.2 V to 8.8 V.
How does the device achieve display blanking capability?
Display blanking can be achieved by managing the chip enable (CE) signal.
What types of components does this driver interface between?
It is designed to interface primarily between MOS ICs and LEDs.
Is this device suitable for life support systems or critical medical use?
National Semiconductors are not authorized for its use in life support devices without express written approval.