SN75451BDR

Buffers, Drivers, Receivers, Transceivers Overview

The SN75451BDR is a dual peripheral driver from Texas Instruments designed for TTL logic systems. It features two inputs and two outputs in an SOIC-8 package. The device operates on a supply voltage of 4.75 V to 5.25 V with a maximum operating current of 52 mA. It supports high-voltage outputs up to 30 V and provides a low-level output current of 300 mA. The propagation delay is 25 ns, and it functions within a temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• High-current capability rated for up to 300 mA output
• Diode-clamped inputs compatible with TTL logic levels
• Open-collector output configuration for circuit flexibility
• Latch-up free design ensuring reliability under high load conditions

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed logic buffering
• Power switching applications
• Relay driving circuits
• Lighting control drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm the tape-and-reel packaging format required for automated assembly processes. Ensure the component grade matches the intended operational environment, as commercial variants differ from military specifications regarding temperature ranges. Confirm RoHS compliance status if environmental regulations apply to the final product assembly line.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing TTL logic with high-voltage or high-current loads requiring open-collector outputs. Consider the SOIC-8 package constraints for thermal management at maximum current ratings. Evaluate the need for diode-clamped inputs to protect against slow-rise times or overshoot voltages common in inductive load environments.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SNx545xB series of dual peripheral drivers. It serves as a functional replacement for older SN75450 and SN75450A series components while offering improved latch-up immunity. The SN75451B variant specifically implements AND gate logic internally connected to NPN output transistors, distinguishing it from OR or NAND configurations within the same family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

• SN75451BDRE4