Changsha Purple Horn E-Commerce Co., Ltd.
| Description | OLGA-8 Ambient Light, IR, UV Sensors RoHS |
| Mfr. Part # | STK3331-A |
| Package | OLGA-8 |
| Model Number | STK3331-A |
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Product Specification
| Description | OLGA-8 Ambient Light, IR, UV Sensors RoHS | Mfr. Part # | STK3331-A |
| Package | OLGA-8 | Model Number | STK3331-A |
The STK3331-A is an integrated ambient and infrared light to digital converter featuring a built-in IR LED and I2C interface. It offers robust backlight/display brightness control through ambient light sensing and proximity estimation with an interrupt function via infrared sensing. The device incorporates a photodiode, timing controller, and ADC on a single chip. Its ambient light sensing exhibits a spectral response close to the human eye, suitable for a wide range of light intensities. For proximity sensing, the spectral response is optimized for 940nm infrared light. The STK3331-A provides programmable current settings for the IR LED, noise cancellation for ambient IR rejection, excellent temperature compensation, and on-chip refresh rate setting without external components. A software shutdown mode is available for power-saving applications. The operating voltage range is 1.7V to 3.0V.
| Parameter | Min. | Typ. | Max. | Unit | Condition |
| Supply voltage (VDD) | 1.7 | 3.0 | V | ||
| I2C Clock frequency | 400 | KHz | |||
| Operation temperature | -40 | 85 | C | ||
| ALS only supply current | 192 | 240 | 288 | A | Note 1,2 |
| PS only supply current | 208 | 260 | 312 | A | Note 1,2 |
| Shutdown current | 1.36 | 30 | A | Note 1,2 | |
| Peak sensitivity wavelength (ALS) | 550 | nm | |||
| Full scale ALS counts | 65535 | counts | |||
| ALS dark offset | 0 | 3 | counts | Note 2,3,4 | |
| High sensitivity wavelength range (PS) | 800 | 940 | 1000 | nm | |
| Full scale PS counts | 65535 | counts | |||
| LED current (IRDR_LED[2:0]) | 3.125 | 150 | mA | Note 5 | |
| Ambient Light Suppression (AMBSUPP) | TBD | Lux | Note 8 | ||
| ESD protection (HBM) | 2 | kV | |||
| ESD protection (MM) | 200 | V | |||
| Latch Up | 100 | mA |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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