MAX25205

Gesture Sensor for Automotive Applications

Automotive Low Cost IR Based Gesture Sensor


Please check latest availability status for a specific part variant.

Description

The MAX25205 is a low-cost data-acquisition system for gesture and proximity sensing. The MAX25205 recognizes the following independent gestures:

  • Hand swipe gestures (left, right, up, and down)
  • Finger and hand rotation (CW and CCW)
  • Proximity detection

The proximity, hand detection, and gesture recognition functions of the MAX25205 operate by detecting the light reflected from the controlled IR-LED light source with an integrated 6x10-element optical sensor array. The MAX25205 can detect these gestures even when exposed to bright ambient light. A low-power, low-cost CPU, such as the MAX32630, is required to process the data from the sensor.

This discrete light source is created externally with one or more FETs driven directly from the MA25205. The light source’s PWM duty cycle is programmable from 1/16 to 16/16. The LEDs are pulsed on one or more times in a programmable sequence that is repeated for every sample.

For flexibility, the MAX25205 supports two different serial communication protocols: I2C (400kHz) and SPI (6MHz).

The MAX25205 is available in a 4mm x 4mm, 20-pin, optical QFN package.

Key Features

  • Low-Cost, Flexible Gesture-Sensing Solution for Automotive Applications
  • Low-Power, Low-Cost External CPU Processes Sensor Output
  • Supports Swipe, Rotation, and Proximity Gestures
  • Highly Integrated
    • 60-Pixel IR Photodiode Array
    • Integrated LED Driver
    • 400kHz I2C and 6MHz SPI Serial Interfaces
  • Operates in 120k Lux Ambient Light
  • AEC-Q100 Qualified
    • -40°C to +85° C Operation
    • MSL3
  • Ultra-Low-Power Operation:
    • 1mA at 3.3V
  • Compact 4mm x 4mm x 1.35mm, 20-Pin, Side-Wettable QFN Package

Applications/Uses

  • Central Information Display Control
  • Door, Moon Roof, and Trunk Control
  • Mechanical Switch Replacement
  • Occupant Detection
  • Rear-Seat Entertainment Systems

See parametric specs for Gesture Sensors (1)


Part NumberIntegrated LEDsISUPPLY
(µA)
Shutdown Mode Supply Current
(µA)
VSUPPLY
(V)
VSUPPLY
(V)
Resolution
(bits)
SNR
(dB)
Oper. Temp.
(°C)
Package/Pins
typtypminmaxADC
MAX25205 NEW!01000133.61280-40 to +105
QFN/20

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX25205EVKIT: Evaluation Kit for the MAX25205

Quality and Environmental Data

Request Reliability Report for: MAX25205 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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