TSL2521-DB ams

TSL2521 Highly Sensitive Ambient Light Sensor with Selective Flicker Detection and Fast Sampling for Brightness Control or Auxiliary to Camera The TSL2521 features ambient light sensing, as well as flicker General Description detection. The device comes in a low-profile and small footprint, L2.0mm x W1.0mm x H0.5mm optical QFN package. The Ambient Light Sensing function provides two concurrent ambient light sensing channels, which can be arbitrarily connected to the photodiodes via a programmable multiplexer. TSL2521 incorporates a set of Infrared photodiodes and a set of Clear photodiodes. The Clear photodiode area is covered with a UV/IR blocking filter. This architecture accurately measures ambient light and enables the calculation of irradiance of different light sources. Calculation results help to improve display appearance and picture taking. The device also integrates direct detection of ambient light flicker. Flicker detection is executed in parallel with ambient light sensing and has independent gain configuration. The flicker detection engine will sample and buffer data for calculating flicker frequencies externally on a host CPU. Key Benefits & Features The benefits and features of TSL2521 are listed below: Figure 1: Added Value of Using TSL2521 Benefits Features Configurable, high sensitivity Programmable gain and integration time 8192x dynamic range by gain adjustment only Invisible ALS sensing under any glass type 1mlux detectable illuminance Tailored ALS response UV/IR blocking filter for Clear channel ALS interrupt with thresholds Flicker-immune ALS sensing with programmable Unique fast ALS integration mode integration time ams Short Datasheet Page 1 v1-00 2021-Jan-20 Document FeedbackTSL 2 52 1 Gen e ra l De s c rip t ion Benefits Features Concurrent flicker and ALS measurement with new simplified readout methodology Integrated ambient light flicker detection on Independently configurable sample time and gain chip Up to 7kHz flicker detection (14kHz sampling) FIFO buffer interrupt 1.8V operation DD Configurable sleep mode Low power consumption and minimum IC Interrupt-driven device traffic IC interface up to 1 Mbit/s (Fast mode) On chip data compression reduces IC serial bus traffic Integrated status checking for all functions Digital and analog saturation flags Applications TSL2521 integrates multiple applications within one device. The applications for TSL2521 include: Indoor/outdoor brightness information Brightness management for displays Camera image correction assistance Flicker-immune camera operation Page 2 ams Short Datasheet Document Feedback v1-00 2021-Jan-20