SN75451BPG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN75451BPG4 is a dual peripheral driver designed for TTL logic systems. It features two independent drivers with open-collector outputs capable of sinking up to 300 mA and sourcing 100 µA. The device operates on a standard 4.75 V to 5.25 V supply voltage and supports output voltages up to 30 V. It ensures latch-up immunity even at 20 V after conducting 300 mA. Key electrical parameters include a maximum input voltage of 5.5 V, a maximum power dissipation of 1 W, and a maximum supply current of 65 mA. The package is an 8-pin PDIP.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• High-current switching capability rated for up to 300 mA output sink current
• Latch-up protection ensuring reliable operation under high-voltage conditions
• TTL-compatible inputs with diode clamping to simplify circuit design

Buffers, Drivers, Receivers, Transceivers Applications

• Relay drivers
• Lighting drivers
• MOSFET drivers
• Power management circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PG4' against the manufacturer's official documentation to confirm RoHS compliance and lead-free status. Ensure the PDIP-8 package matches the target PCB footprint requirements. Confirm that the operating temperature range aligns with the system environment specifications before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing TTL logic with high-current or high-voltage loads requiring open-collector outputs. It serves as a functional replacement for older SN75450 series devices. Consider the thermal dissipation capabilities of the PDIP package if driving continuous high currents near the 300 mA limit.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN7545xB family of dual peripheral drivers. These devices are engineered for high-speed switching and are functionally interchangeable with previous generations like the SN75450 and SN75450A. The family includes variants based on AND, NAND, OR, and NOR logic gates, all sharing similar drive characteristics and pinouts.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN75451BP

Buffers, Drivers, Receivers, Transceivers FAQ

Does the SN75451BPG4 support latch-up protection?

Yes, the device is designed to ensure no latch-up occurs at 20 V even after conducting 300 mA.

What is the maximum output voltage supported by this driver?

The driver supports output voltages up to 30 V.