Lighting over Ethernet (LoE) in Industrial and Commercial applications need specialized power conversion, power management and EMI/ESD suppression. New system designs are being adopted in this expanding application area. Lighting power requirements can be addressed with existing and upcoming industry PoE standards. PoE solutions for lighting applications cover existing requirements and new standards such as IEEE 802.3bt with products that can support loads up to and above 60 watts. In addition to PoE controllers, EMI/ESD suppression fill complete power management needs for lighting systems and applications.
PoE PD Controllers
Applications requiring PoE typically need high efficiency power conversion, small PCB area and reduced component count. Kinetic Technologies offers a broad portfolio of product solutions which integrate the PD physical interface and DC/DC controller functions into a single package. Supporting solutions from a few watts up to the maximum allowed, Kinetic Technologies provides high efficiency power solutions for nearly every PoE PD application.
The AS11xx family of parts provide solutions for PD controller and integrated primary DC/DC controller with single output isolated or non-isolated solutions for IEEE802.3af (Type 1) and IEEE802.3at (Type 1 and Type 2) PDs. Higher power levels may be achieved using custom programmed PSEs or by implementing the LLDP software interface to enable 4-pair power delivery on the Ethernet cable. These highly integrated solutions provide industry leading performance in a small footprint with integration of front end rectification (AS1113 and AS1114), surge protection, advanced PoE and power management, enabling a flexible design.
The AS1113 and AS1114 PoE + DC/DC controller products address Type 1 PD applications. They are highly integrated CMOS solutions for PoE applications that provide seamless integration of Front End Rectification, Advanced Power Management, EMI Control and High Voltage Protection in the Industry’s smallest footprint.
The AS1138 targets both Type 1 and Type 2 PDs. It is a highly integrated CMOS solution for PoE PDs requiring input power up to 30 watts. The AS1138 integrates input Surge Protection, a digital PD controller, and a low-emission DC/DC controller onto a single die. The AS1138 implements the physical layer PD functionality as required by IEEE® 802.3af and IEEE® 802.3at. This includes 2-event classification, a Type 2 PSE detection indicator (ATDET) in addition to PD detection, under-voltage lockout, and hot-swap FET integration.
13W/30W 802.3af/at PoE PD and Integrated DC-DC Controller
Industrial lighting PoE Ethernet ports can benefit from ESD and Common Mode EMI suppression IC used to improve EMC performance in Ethernet applications. Kinetic Technologies’ EMI/ESD Suppression technology is the industry’s first and is used to improve EMC performance in Ethernet applications. What used to present as a design challenge is solved by this unique solution that offers EMC compliance for Ethernet connected devices. The physical interface of the PD data path to the outside environment is through the PHY. The PHY is also subject to ESD and surge events when an Ethernet cable is inserted. CM emissions are typically filtered by large passive devices located between the PHY and the LAN isolation magnetics. Kinetic Technologies offers the world’s first active ESD and EMI suppressor IC, a 4-channel device in which each channel connects to one wire of the two twisted pair sets. ESD performance, EFT-B and surge immunity, and CM emissions equal or exceed passive techniques while occupying a much smaller footprint.
The Kinetic Technologies EMI/ESD Suppression technology enables system designers to comply with:
CISPR22 and FCC Part 15, Class B requirements for Radiated and Conducted Emissions
IEC 61000-4-3/6 requirements for Radiated and Conducted Immunity, Level 3 or higher