TI TPS2375PWR-1

These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af-compliant powered device (PD). The TPS2375-1 and TPS2377-1 are second generation PDCs (PD Controllers) featuring a 100-V ratings and true open-drain, power-good function. These devices are auto-retry versions of selected TPS2375 family members.

In addition to the basic functions of detection, classification, and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375-1 has 802.3af-compliant UVLO limits, and the TPS2377-1 has legacy UVLO limits.

The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.

• Auto-Retry After Current-Limit Fault
• TPS2375-1: IEEE 802.3af Thresholds
• TPS2377-1: Legacy Thresholds
• Fully Supports IEEE 802.3af Specification
• Integrated 0.58-Ω, 100-V, Low-Side Switch
• 15-kV System Level ESD Capable
• Programmable Inrush Current Control
• Fixed 450-mA Current Limit
• Open-Drain, Power-Good Reporting
• Industrial Temperature Range: -40°C to 85°C
• 8-Pin SOIC and TSSOP Packages

• VoIP Phones
• WLAN Access Points
• Security Cameras
• Internet Appliances
• POS Terminals