TPS2419DR

Overview

The TPS2419DR is a hot swap voltage controller manufactured by Texas Instruments, designed for N+1 and ORing power rail applications. It operates within a supply voltage range of 800 mV to 16.5 V and draws a typical operating current of 1.2 mA. The device supports a single channel and functions reliably across an extended temperature range from -40°C to +85°C. Packaged in an SOIC-8 surface-mount format, it dissipates up to 410 mW of power. This component lacks integrated power FETs, requiring external switching elements for implementation.

Feature Summary

• Provides control logic for N+1 redundancy and ORing configurations in power distribution systems
• Supports hot insertion capabilities to allow module replacement without system shutdown
• Operates with low quiescent current to minimize standby power consumption

Applications

• N+1 redundant power supply architectures
• High availability server and communication backplane power rails
• ORing controller circuits for load sharing

Procurement Notes

Verify the specific package variant, as the TPS2419 family includes both SOIC-8 (D) and TSSOP (PW) options. Confirm that the design utilizes external N-channel MOSFETs, as this controller does not integrate internal switches. Ensure the application voltage remains within the specified 800 mV to 16.5 V range for proper operation.

Selection Notes

Select this component when designing redundant power systems requiring precise control over hot-swap events. It is suitable for applications needing low standby current and support for multiple parallel power sources. Verify compatibility with external FET gate drive requirements and ensure the PCB layout accommodates the SOIC-8 footprint.

Part Context

This part belongs to the TPS2419 series of hot swap controllers from Texas Instruments. It is functionally related to the TPS2419PW, which uses a TSSOP-8 package. The series addresses power management needs in high-reliability environments where continuous uptime and modular maintenance are critical requirements.

Replacement Considerations

The TPS2419PW serves as a pin-compatible alternative with a different package type. Verify that the thermal performance and board space accommodate the chosen package variant.