STELPD01PUR

Overview

The STELPD01PUR is an integrated electronic power switch designed for power rail protection applications, manufactured by STMicroelectronics. It features a wide input voltage range of 4 V to 18 V and provides precise detection and reaction to overcurrent and overvoltage conditions. The device includes an adjustable turn-on slew-rate to control inrush current during startup and hot-swap operations. Key electrical parameters include a typical output overvoltage clamp of 17.5 V, an absolute maximum voltage of 23.5 V, and a maximum continuous current of 5 A. It incorporates an integrated 40 mΩ Power FET and offers thermal protection, input undervoltage lockout, and latch or auto-retry modes.

Feature Summary

• Integrated electronic power switch with precise overcurrent and overvoltage detection capabilities
• Adjustable turn-on slew-rate for controlled inrush current management during startup
• Built-in thermal protection and input undervoltage lockout functionality
• Supports external power MOSFET driving for enhanced fault condition power loss protection

Applications

• Power rail protection systems
• Hot-swap operational circuits
• Overcurrent and overvoltage protection interfaces
• Load disconnect mechanisms during overload conditions

Procurement Notes

Verify the specific suffix PUR against official STMicroelectronics documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with required operating temperatures and certification standards such as UL2367 and IEC 62368-1 before procurement. Cross-reference the exact part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select the STELPD01PUR when designing circuits requiring robust power rail protection with adjustable current limiting and slew-rate control. Consider its 5 A continuous current rating and integrated 40 mΩ FET for efficient power management. Evaluate the need for latch versus auto-retry modes based on system recovery requirements and fault tolerance specifications.

Part Context

The STELPD01 belongs to STMicroelectronics' portfolio of integrated electronic switches focused on power line protection. It is engineered to safeguard loads from electrical faults by disconnecting them from the power supply during overload events. The component supports external MOSFET driving for advanced power loss management and features certifications including UL2367 and IEC 62368-1 CB.

FAQ

How does the STELPD01 handle overvoltage conditions?

In case of overvoltage on the input, the device regulates the output to a preset 17.5 V value to protect downstream components.

What is the function of the adjustable turn-on slew-rate?

The adjustable turn-on slew-rate is useful to keep the in-rush current under control during startup and hot-swap operations.