Maxim Integrated's latest infrared-based dynamic gesture sensor can detect various gestures at a longer distance

Maxim Integrated Products, Inc recently launched a new generation of infrared-based dynamic gesture detection optical sensors that can detect various gestures at a longer distance. Compared with previous products, the MAX25405 can detect a larger range of motion and double the detection range to 40 cm; compared with camera-based time-of-flight (ToF) detection solutions, it is only one-quarter the size and 10 times cheaper, and can be widely used in automotive, industrial and consumer applications. These enhanced features replace voice communication solutions, allowing drivers to focus on the road.

In addition to the optics and 6 x 10 infrared sensor array, the new generation MAX25405 includes a glass lens to improve detection sensitivity and signal-to-noise ratio. The improved performance doubles the proximity and distance detection range beyond the driver's area, for example, the infotainment display can detect gesture control by the co-pilot and rear seat passengers. Compared with competing ToF solutions that require 3 chips and complex processors, the MAX25405 has a higher level of integration. The MAX25405 uses a small size, 20-pin, 4 mm x 4 mm x 1.35 mm square flat no-lead (QFN) package and works with 4 discrete LEDs, which is 75% smaller than camera-based ToF detection solutions.

Key Benefits

● Wider detection range: Compared with previous infrared-based detection solutions, the MAX25405 can detect a larger range of motion and double the detection distance from 20 cm to 40 cm.

● Lowest cost and smallest size: The MAX25405 can detect swipe, rotate, and other common gestures at a lower cost than camera-based ToF detection solutions. The high level of integration makes the overall solution size significantly smaller than camera-based ToF detection solutions.

● Versatility: The MAX25405 can recognize nine gestures, including swipe, rotate, air click, dwell click, and 3 x 2 proximity detection areas, with minimal latency. This cost-effective single-chip solution can help gesture detection gain rapid popularity in automotive, consumer, and industrial applications, including contactless smart home centralized controllers, temperature monitors, and more.

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"Maxim Integrated's MAX25405 can recognize the vast majority of gestures at minimal cost, allowing automakers to avoid the high costs of camera-based time-of-flight detection solutions, while keeping drivers' attention on the road," said Szu-Kang Hsien, executive business manager, automotive business unit at Maxim Integrated. "Affordable gesture detection safety features add value to mid-range and low-end vehicles, while providing passengers with the luxury of touchless gesture control."

Availability and Pricing

The MAX25405 power management IC and the associated MAX25405EVKIT# evaluation kit are available now from Maxim Integrated and authorized distributors. Pricing is available upon request.