Product Details

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Digital Proximity Sensor with Interrupt Function

**The ISL29021 is an integrated proximity and infrared sensor with a

built-in IR LED driver and I2C Interface (SMBus Compatible). This device provides infrared sensing to allow proximity estimation featured with interrupt function.**

For infrared and proximity sensing, an internal ADC has been designed based on the charge-balancing A/D conversion technique.

Features

Proximity Sensing
• Ambient IR Cancellation During Proximity Sensing
- Works Under Direct Sunlight
• IR LED Driver with Programmable Source Current
- Adjustable Current Drive from 100mA to 12.5mA
• Programmable LED current Modulation Frequency
• Variable Conversion Resolution up to 16-bits
• Selectable Range (via I2C)
• Works Under Various Light Sources, Including Sunlight

Ideal Spectral Response for Proximity Sensor

• Proximity sensor range from 850nm to 950nm
- Can use either 850nm or 950nm LED solution

Ultra Low Power

• 90μA Max Operating Current
• Software Shutdown and Automatic Shutdown
- 0.5μA Max Shutdown Current

Easy to Use

• I2C (SMBus Compatible) Output
• No Complex Algorithms Needed
• Temperature Compensated
• Small Form Factor
- 8 Ld 2.0mmx2.1mmx0.7mm ODFN Package

Additional Features

• I2C and SMBus Compatible
• 1.7V to 3.63V Supply for I2C Interface
• 2.25V to 3.63V Sensor Power Supply
• Pb-Free (RoHS compliant)

Applications

• Display and Keypad Proximity Sensing for:
- Mobile Devices: Smart Phone, PDA, GPS
- Computing Devices: Notebook PC, Webpad
- Consumer Devices: LCD-TV, Digital Picture Frame, Digital Camera
• Industrial and Medical Proximity Sensing