TPS23785BPWPR

Overview

The TPS23785BPWPR is a high-power, high-efficiency Power over Ethernet (PoE) Powered Device (PD) and DC-to-DC controller manufactured by Texas Instruments. Designed for IEEE 802.3at compliance, this component integrates PoE interface logic with a synchronous buck converter to efficiently deliver power to downstream loads. It operates within a wide input voltage range of 36 V to 57 V, supporting output power capabilities up to 30 W. The device features an SOIC-PowerPad package with thermal enhancement for robust performance in space-constrained applications.

Feature Summary

• Integrates IEEE 802.3at compliant PoE PD interface with a high-efficiency synchronous DC-to-DC controller
• Supports high-power delivery up to 30 W with optimized thermal management via PowerPad packaging
• Operates reliably across the full standard PoE input voltage range from 36 V to 57 V

Applications

• Wireless access points requiring high data throughput and power
• IP cameras with integrated PTZ mechanisms and heaters
• Industrial IoT gateways and edge computing nodes
• Digital signage displays with embedded processing units

Procurement Notes

Verify the complete part number including suffix 'PWPR' to ensure correct tape-and-reel packaging and temperature grade. Confirm RoHS compliance status through the official datasheet or manufacturer declaration before integration. Cross-reference the specific revision level to ensure compatibility with existing design files and reference schematics provided by Texas Instruments.

Selection Notes

Select this component when designing systems that require both PoE classification negotiation and efficient on-board voltage regulation. It is suitable for applications needing up to 30 W of output power without external gate drivers. Consider the thermal dissipation requirements of the PowerPad package relative to the ambient operating conditions and PCB copper area available for heat spreading.

Part Context

This part belongs to the TPS23785 family, which combines PoE interface functionality with a DC-DC controller. Unlike the standalone TPS2378, this variant includes the power stage control logic internally. It serves as a key solution for compact PoE endpoints where board space and efficiency are critical constraints for modern networking hardware.

Replacement Considerations

The TPS23785B is the non-packaged die or alternative package version. For direct pin-compatible replacements, consult TI's cross-reference tools for updated revisions. Other manufacturers offer similar integrated PoE-PD controllers, but functional equivalence requires verifying internal control loop characteristics and protection thresholds.