Description

The ISL29028IROZ-T7 is an electronic component model in the category of optical sensors. It is an ambient light and proximity sensor with low power consumption. This sensor has intelligent interrupt and sleep modes. It is designed with two independent ADCs that can concurrently measure ambient light and proximity. The ISL29028IROZ-T7 also features a built-in IR LED driver and an I2C interface. It works under all light sources including sunlight and has a flexible interrupt scheme for minimal microcontroller utilization.

Specifications and features

• Works Under All Light Sources Including Sunlight

• Dual ADCs Measure ALS/Prox Concurrently

• Intelligent Interrupt Scheme Simplifies μC Code

• Simple Output Code Directly Proportional to lux

• 50Hz/60Hz Flicker Noise and IR Rejection

• Light Sensor Close to Human Eye Response

• Selectable 125/2000 Lux Range

• Proximity Sensor with Broad IR Spectrum

- Can Use 850nm and 950nm External IR LEDs

• IR LED Driver with I2C Programmable Sink Currents

- Net 100μs Pulse with 110mA or 220mA Amplitudes

- Periodic Sleep Time up to 800ms Between Pulses

• Ambient IR Noise Cancellation (Including Sunlight)

• Independent ALS/Prox Interrupt Thresholds

• Adjustable Interrupt Persistency

- 1/4/8/16 Consecutive Triggers Required Before Interrupt

• 138μA DC Typical Supply Current for ALS/Prox Sensin

- 110μA for Sensors and Internal Circuitry

- 28μA Typical Current for External IR LED (Assuming 220mA for 100μs Every 800ms)

• <1.0μA Supply Current When Powered Down

• Set Registers; Wait for Interrupt

• I2C (SMBus Compatible) Output

• Temperature Compensated

• Tiny ODFN8 2.0x2.1x0.7 (mm) Package

• 1.7V to 3.63V Supply for I2C Interface

• 2.25V to 3.63V Sensor Power Supply

• Pb-Free (RoHS compliant)

• I2C Address Selection Pin

Application Scenarios

The ISL29028IROZ-T7 is suitable for various applications such as display and keypad dimming adjustment and proximity sensing in different devices. It can be used in mobile devices like smartphones, PDAs, and GPS devices. It is also applicable in computing devices such as laptop PCs and netbooks. Additionally, this sensor is useful in consumer devices like LCD-TVs, digital picture frames, and digital cameras. It also finds applications in industrial and medical light and proximity sensing.

Comparison

- Works under all light sources including sunlight

- Dual ADCs allow concurrent measurements of ambient light and proximity

- Intelligent interrupt scheme for minimal microcontroller utilization

- Simple output code directly proportional to lux

- Proximity sensing with broad IR spectrum and IR LED driver

- Adjustable interrupt thresholds and persistency

- Ultra low power consumption

- Easy to use with I2C interface

- Compact package size

- Multiple supply voltage options

- RoHS compliant

- No significant disadvantages found