TVS diode arrays safeguard HBLED strings

March 10, 2017 // By Julien Happich
Littelfuse's SP1064 Series of TVS diode arrays are Zener diodes fabricated using a proprietary silicon avalanche technology to safely absorb repetitive ESD strikes above the maximum level specified in IEC 61000-4-2 international standard without performance degradation.

Their very low loading capacitance (typically 8.5pF per I/O) also makes them suitable for protecting high speed signal pins. The chips feature a high standoff voltage up to 60V allowing them to protect strings of up to 15 high brightness LEDs used in backlighting or edge lighting for Ultra High Definition TVs from ESD and EFT. Each four-line DFN array can protect up to four lines of LED strings. A single four-line device is sufficient for smaller outline displays, while large format displays require just one device per quadrant. The SP1064 Series is rated for at least 15kV contact protection against an 8/20µs ESD event. The SP1064 series TVS diodes are available in surface mount uDFN-10 packages in tape and reel format in quantities of 3,000.

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