SN75468NSR

Overview

The SN75468NSR is a discrete semiconductor component manufactured by Texas Instruments, classified as a bipolar (BJT) transistor array. It features seven NPN Darlington pairs integrated into a single surface-mount package. The device supports a maximum collector-emitter breakdown voltage of 100V and a continuous collector current of 500mA per channel. It operates within a junction temperature range up to 150°C and meets AEC-Q100 automotive qualification standards. The unit is housed in a 16-SOIC package with a width of 5.30mm. Electrical characteristics include a maximum saturation voltage of 1.6V at specific base and collector currents.

Feature Summary

• Integrates seven independent NPN Darlington transistor pairs for high-gain switching applications
• Automotive-grade reliability certified under the AEC-Q100 standard
• High voltage tolerance capability suitable for driving inductive loads such as relays and solenoids
• Surface-mount construction optimized for automated assembly processes

Applications

• Stepper motor driver circuits requiring multiple phase control channels
• Industrial relay and solenoid actuation systems
• Automotive electronic control modules and lighting drivers
• General-purpose high-current switching interfaces

Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel configuration intended for production. Confirm that the RoHS3 compliance status aligns with environmental regulations applicable to the target market. Ensure the AEC-Q100 qualification data is reviewed if the application demands strict automotive reliability standards. Cross-reference the 16-SOIC footprint dimensions during PCB layout finalization.

Selection Notes

Select this component when seven isolated high-voltage switching channels are required in a compact form factor. The Darlington configuration provides sufficient current gain to interface directly with low-power logic outputs. Consider the thermal dissipation capabilities inherent to the SOIC package for the expected load conditions. Verify that the 100V rating exceeds the peak voltage transients present in the target circuit environment.

Part Context

This part belongs to the SN7546x series of high-voltage Darlington arrays produced by Texas Instruments. It serves as the surface-mount equivalent to through-hole variants like the SN75468N. The series is designed to simplify the design of multi-channel power switching systems by consolidating multiple transistors into a single integrated circuit.

Replacement Considerations

The ULN2003D1013TR from STMicroelectronics is documented as a similar alternative. Verify pinout compatibility and electrical parameter alignment before substitution.