TPS2376
PoE-PD der Klasse 3 mit einstellbarem UVLO-Schwellenwert und Latch Schutz
TPS2376
- Fully Supports IEEE 802.3af Specification
- Integrated 0.58-Ω, 100-V, Low-Side Switch
- 15-kV System Level ESD Capable
- Supports Use of Low-Cost Silicon Rectifiers
- Programmable Inrush Current Control
- Fixed 450-mA Current Limit
- Fixed and Adjustable UVLO Options
- Open-Drain, Power-Good Reporting
- Overtemperature Protection
- 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
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 family is a second generation PDC (PD Controller) featuring 100-V ratings and a true open-drain, power-good function.
In addition to the basic functions of detection, classification and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375 has 802.3af compliant UVLO limits, the TPS2377 has legacy UVLO limits, and the TPS2376 has a programmable UVLO with a dedicated input pin.
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.
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | TPS237x: IEEE 802.3af PoE Powered Device Controllers datasheet (Rev. B) | 25 Apr 2008 | |
Application note | PoE Powered Devices Debug Guidelines | PDF | HTML | 19 Jul 2021 | |
Application note | PoE PD Schematic Review Guidelines | PDF | HTML | 29 Apr 2021 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
Application note | Lightning Surge Considerations for PoE Powered Devices | 30 Apr 2015 | ||
Application note | Designing an EMI Compliant PoE with Isolated Flyback | 20 Mai 2008 | ||
Application note | Practical Guidelines EMI Compliant PoE | 27 Mär 2008 | ||
EVM User's guide | HPA244 EVM (Rev. B) | 26 Sep 2007 | ||
Application note | Wall Adapter Powers IEEE 802.3af Powered Device | 01 Feb 2006 | ||
Application note | Powered Device Controllers Comparison | 22 Apr 2004 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
TPS2375EVM — TPS2375 IEEE802.3af Evaluierungsmodul für PoE-gespeiste Geräte
The HPA028 EVM features the TPS2375 from Texas Instruments Incorporated. The EVM is designed to look like the front end of any Power Over Ethernet (PoE) Powered Device (PD) module. An RJ-45 connector is provided to connect directly to an Ethernet cable having a Power Sourcing Equipment (PSE) (...)
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
SOIC (D) | 8 | Ultra Librarian |
TSSOP (PW) | 8 | Ultra Librarian |
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