Ambient light sensor produces near-photopic response

Automatically controlling the backlight intensity with an ambient light sensor (ALS) ensures the best possible user experience while extending battery life in displays, says ams.

The company offers the TSL2584TSV ALS in a through-silicon via (TSV) package which has a footprint of just 1.145 x 1.66mm and a height of 0.32mm.

In display management applications, the outline and height are approximately half the size of competing ALS, making it the world’s smallest ALS, claims the company.

TSV package technology eliminates the use of wire bonds and provides a direct connection from the device I/Os to a solder ball. TSV enhances device reliability with a moisture sensitivity level-1 standard rating, improves humidity temperature-cycling performance while minimising corrosion resistivity.

The near-photopic response produces an accurate lux measurement even when mounted behind dark glass. The ability to accurately deposit interference filters directly onto the silicon filters out unwanted IR light, enabling accurate measurement of the ambient light thus producing a near-photopic response.

A TSL2584TSV evaluation kit is also available.

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