SN75451BDE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN75451BDE4 is a dual peripheral driver designed for high-current, high-speed switching applications within TTL logic systems. It operates on a standard supply voltage of 4.75V to 5.25V and features two independent drivers with open-collector outputs capable of sourcing up to 300mA. The device supports output voltages up to 30V and includes diode-clamped inputs to simplify circuit design while ensuring latch-up immunity.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• High-current capability rated for continuous operation up to 300mA per channel
• Robust high-voltage output performance with no latch-up at 20V after conducting full load current
• TTL-compatible inputs utilizing diode clamping to facilitate interface with standard logic families

Buffers, Drivers, Receivers, Transceivers Applications

• Relay driving circuits requiring high current switching
• Lighting control systems for lamps and indicators
• MOSFET gate drive applications
• Memory address and data bus drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'E4' indicates lead-free packaging compliant with RoHS standards. Confirm the package type matches the required PCB footprint, as this part number typically corresponds to the SOIC-8 surface-mount variant. Ensure the operating temperature range aligns with the commercial grade specification of 0°C to 70°C for the final system design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing low-power TTL logic with high-current or high-voltage loads that exceed standard logic gate capabilities. It serves as a functional replacement for older SN75450 series devices. Consider the open-collector output topology, which requires external pull-up components to define the high logic level and voltage limit.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SNx545xB family of dual peripheral drivers manufactured by Texas Instruments. It is functionally interchangeable with previous SN75450 and SN75450A generations. The 'SN75451' designation specifically identifies the AND-gate based peripheral driver configuration within this broader family of high-speed switching components.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

• SN75451BD
• SN75451BDR