●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. Information on the TPS2375/6/7 devices can be found on the TPS2375/6/7 data sheet (SLVS525A).
●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.
●Additional resources can be found on the TI Web site www.ti.com.
● 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
● APPLICATIONS
● VoIP Phones
● WLAN Access Points
● Security Cameras
● Internet Appliances
● POS Terminals