Introduction
1
Introduction
The RD-195 reference design includes the SM73201-ARC-EV PCB which is a UL1699B compliant Photo-
Voltaic Arc Detect System with a minimal footprint of less than 50mm x 30mm. The reference design
utilizes a proprietary dynamic filtering technique to effectively detect the signature of arcing conductors in
the presence of highly noisy real world environments. The analog path requires less than 50mW of power
to implement the active filtering. The operation range of the device covers the industrial temperature range
of -40°C to +85°C.
2
Features
•
1,000V isolation
•
Effective detection at maximum DC string current of 15A
•
Simple LED arc detection flag
•
Self Test Capability
•
Industrial Temperature Range (-40°C to +85°C)
•
Small PCB footprint for active area of less than 50mm x 30mm, single sided
•
Low power requirement < 400mW, analog power < 50mW
Figure 1. Evaluation board
(1)
3
Connection
The multiple connections on the Evaluation Board are labeled. Refer to the table below for a description of
their usage.
3
SNOA564F – June 2011 – Revised December 2012
AN-2154 RD-195 DC Arc Detection Evaluation Board
Copyright © 2011–2012, Texas Instruments Incorporated
