TPS2383BPMR

Overview

The TPS2383BPMR is an eight-channel Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3af standards. It operates within a supply voltage range of 3V to 3.6V for logic and 44V to 57V for power stages, drawing a typical supply current of 5mA. The device supports a maximum channel power of 15.4W and functions reliably across an operating temperature range of -40°C to 85°C. Packaged in a 64-LQFP (10x10mm) surface-mount housing, it integrates control logic for multi-port PoE applications without internal switches.

Feature Summary

• Supports eight independent PoE channels compliant with IEEE 802.3af standards
• Integrates comprehensive PSE control logic for port management and classification
• Operates on dual voltage domains for logic and power stage isolation

Applications

• Multi-port Ethernet switches requiring integrated PoE sourcing
• Power over Ethernet midspan injectors
• Industrial networking equipment with high channel density

Procurement Notes

Verify component status as the TPS2383BPMRG4 variant is discontinued by major distributors. Confirm availability of the non-G4 TPS2383BPMR or equivalent active revisions. Ensure compatibility with existing PCB footprints and validate lead times for alternative Texas Instruments PoE controllers if this specific part number is unavailable.

Selection Notes

Select this controller for designs requiring eight-channel PoE compliance under the 802.3af standard. Consider the 64-LQFP package size for thermal and spatial constraints. Verify that the system architecture accommodates the external switch requirement, as this controller manages logic rather than providing internal switching elements.

Part Context

This component belongs to the Texas Instruments TPS2383 family of PoE controllers. It serves as a central management unit for powering remote devices over Ethernet cabling. The B suffix typically denotes specific binning or revision characteristics within the manufacturer's production lines.

Replacement Considerations

The TPS2383APMRG4 is listed as a substitute option. Verify pinout compatibility and electrical specifications before substitution. Check for any functional differences between the A and B suffixes regarding performance bins or manufacturing revisions.