UCC3918DPTR

Overview

The UCC3918DPTR is a low on-resistance hot swap power manager from Texas Instruments, designed for complete power management and circuit breaker functions. It operates with a single high-side MOSFET and supports input voltages of 3V to 6V. The device provides current limiting up to 4A and features an internal gate driver. It is housed in a 16-pin SOIC package and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Provides integrated hot swap capability with low on-resistance performance
• Includes built-in circuit breaker functions for system protection
• Features complete power management control for single high-side MOSFET applications

Applications

• General purpose hot swap controller circuits
• System board insertion and removal protection
• Power distribution units requiring circuit breaker functionality

Procurement Notes

Verify the specific suffix DPTR indicates tape and reel packaging when sourcing. Confirm the manufacturer is Texas Instruments to ensure component authenticity. Check for RoHS compliance status as per the latest datasheet revisions. Ensure the operating voltage range matches your system requirements before integration.

Selection Notes

Select this component for applications requiring integrated hot swap and circuit breaker capabilities in a compact SOIC package. It is suitable for systems operating between 3V and 6V. Consider the 4A current limit and thermal performance when designing the heat dissipation strategy. Verify compatibility with external high-side MOSFETs if higher currents are needed.

Part Context

This part belongs to the UCC391x family of hot swap controllers from Texas Instruments. These devices are engineered to manage power delivery during live insertion events. The UCC3918 variant specifically targets lower voltage applications with integrated protection features. It serves as a key component in robust power distribution architectures.

Replacement Considerations

Public confirmed substitute: UCC3915DP. Verify pinout and electrical specifications match before substitution.

FAQ

What is the maximum input voltage for the UCC3918DPTR?

The device supports input voltages ranging from 3V to 6V.

Does the UCC3918DPTR include an internal switch?

No, it requires an external high-side MOSFET, though it includes an internal gate driver.