TPS2383PMRG4

Overview

The TPS2383PMRG4 is an octal Power Sourcing Equipment (PSE) controller designed for IEEE 802.3af Power over Ethernet applications. It provides eight independent channels, each capable of delivering up to 15.4 W of power. The device operates with a supply voltage range of 3V to 3.6V and supports input voltages from 44V to 57V. It features a maximum supply current of 5mA and functions within a temperature range of -40°C to 85°C. The component is housed in a 64-LQFP package measuring 10x10 mm.

Feature Summary

• Supports eight independent PoE channels compliant with IEEE 802.3af standards
• Integrates comprehensive protection mechanisms including short-circuit and overload detection
• Enables precise power management through programmable thresholds and monitoring capabilities

Applications

• IEEE 802.3af compliant Power Sourcing Equipment designs
• High-density network infrastructure requiring multiple powered devices
• Industrial control systems utilizing Power over Ethernet connectivity

Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the specific suffix matches required packaging and environmental specifications. Check for obsolescence status as availability may be limited. Ensure design compatibility with existing power budget calculations and thermal management requirements for the target application environment.

Selection Notes

Select this controller when designing systems requiring eight isolated PoE ports under the 802.3af standard. Evaluate thermal performance due to high channel density. Consider alternative models if higher power budgets per port are needed or if internal switches are preferred. Verify package availability and lead times for production planning purposes.

Part Context

This component belongs to Texas Instruments' family of Power over Ethernet controllers. It serves as a central management unit for distributing power across multiple Ethernet links. The device simplifies PSE implementation by integrating control logic and protection features into a single compact package suitable for space-constrained networking hardware.

Replacement Considerations

TPS2383BPMR is listed as a manufacturer-recommended substitute. Verify pinout compatibility and electrical parameter equivalence before substitution. Ensure the replacement part meets all original design specifications and regulatory compliance requirements.