SIPQ32434ADN-T1E3

Overview

The SIPQ32434ADN-T1E3 is a single-channel electronic fuse and load switch from Vishay Siliconix, designed for power distribution applications. It operates within a supply voltage range of 2.8V to 23V, with a maximum rated voltage of 28V and an internal overvoltage protection (OVP) threshold of 24V. The device features a typical on-resistance of 33mΩ and supports a programmable current limit setting range from 0.5A to 6A with ±7% accuracy. Key timing parameters include a turn-on delay of 190μs and a programmable slew rate. It integrates comprehensive protection against overload, short circuits, voltage surges, and excessive inrush currents, alongside thermal shutdown and a Power Good indicator.

Feature Summary

• Integrates programmable overvoltage protection and adjustable under-voltage lockout for precise power rail management.
• Provides fast short-circuit protection response without requiring expensive high-current components.
• Includes thermal shutdown and a Power Good status output for system monitoring and fault indication.
• Features programmable turn-on slew rate control to minimize inrush current during startup.

Applications

• Industrial automation systems
• Internet of Things (IoT) and smart home devices
• Medical and healthcare equipment
• Network and telecommunications infrastructure
• Solid-state drives and data storage solutions

Procurement Notes

Verify the specific suffix T1E3 confirms RoHS compliance and tape-and-reel packaging configuration. Confirm the ADN package designation corresponds to the required TDFN 3mm x 3mm footprint for your PCB layout. Ensure the selected part number matches the exact OVP and current limit specifications required by your circuit design, as variations may exist within the family.

Selection Notes

Select this component when a compact, single-channel eFuse solution is needed for protecting downstream loads from electrical faults. It is suitable for designs requiring integrated overvoltage, undervoltage, and thermal protection without external discrete components. Consider the 33mΩ on-resistance and 190μs delay for efficiency and timing requirements. Verify that the 2.8V to 23V operating range aligns with your system's power supply rails.

Part Context

This part belongs to the SIP3243x series of power switch ICs manufactured by Vishay Siliconix. It is specifically engineered to simplify power distribution designs by combining switching functionality with robust protection mechanisms. The SIPQ variant indicates automotive qualification under AEC-Q100 standards, making it appropriate for harsh environments where reliability is critical.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Vishay resources or authorized distributors for qualified alternatives if this specific part number becomes unavailable.

FAQ

What is the internal overvoltage protection threshold?

The device features a fixed internal overvoltage protection (OVP) threshold of 24V when VIN exceeds this level.

How is the current limit configured?

The current limit is programmable via an external resistor, allowing a setting range from 0.5A to 6A with ±7% accuracy.

Does the device offer thermal protection?

Yes, the SIPQ32434ADN-T1E3 includes built-in thermal shutdown protection to safeguard the device and connected loads from overheating.