SN7406DG4

Overview

The SN7406DG4 is a hex inverter buffer and driver featuring open-collector high-voltage outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V. The device provides a low-level output current of 40 mA and a high-level output current of -250 uA. Propagation delay is specified at 23 ns when operating at 5 V. It functions within an ambient temperature range of 0°C to +70°C and utilizes a 14-pin SOIC package.

Feature Summary

• Hex inverting buffer configuration with six independent channels
• Open-collector output structure designed for high-voltage driving applications
• High sink current capability suitable for interfacing with higher voltage loads

Applications

• Driving relays and solenoids requiring voltages above standard logic levels
• Connecting logic circuits to lamps or other high-current indicators
• Level shifting between low-voltage logic families and higher voltage systems

Procurement Notes

Verify the specific suffix 'DG4' against the manufacturer's current datasheet to confirm RoHS compliance status and lead-free manufacturing details. Ensure the SOIC-14 package dimensions match your PCB footprint requirements. Confirm that the commercial temperature range (0°C to +70°C) aligns with your operational environment constraints before finalizing procurement.

Selection Notes

Select this component when open-collector inversion is required for high-voltage switching tasks. It is appropriate for designs needing significant sink current capability while maintaining compatibility with standard 5V logic inputs. Consider thermal dissipation requirements if driving multiple high-current loads simultaneously within the specified temperature range.

Part Context

This part belongs to the SN7400 series of bipolar logic devices produced by Texas Instruments. It serves as a specialized interface component within digital systems, bridging the gap between standard TTL/CMOS logic outputs and external high-voltage or high-current loads through its unique open-collector architecture.

Replacement Considerations

SN7406D

FAQ

What is the maximum voltage rating for the open-collector outputs?

The datasheet specifies the device as having high-voltage outputs, typically rated up to 30 V for the SN7406 series, allowing it to drive loads significantly higher than the 5 V supply voltage.

Does the SN7406DG4 include internal pull-up resistors?

No, the SN7406DG4 features open-collector outputs. External pull-up resistors are required to define the high logic state and limit the current flowing through the output transistor when active.