The UVIS25 is a digital UV index sensor able to provide an accurate measurement of the ultraviolet radiation index (UVI) from sunlight. It includes a sensing element and a mixed signal ASIC to provide the UV index data through I2C and SPI interfaces.

A dedicated technology has been developed to achieve the greatest accuracy for UV index measurements.

The UVIS25 allows the measurement of the UV index, without the need for a dedicated algorithm to calculate the UV Index and without specific calibrations at the customer manufacturing line.

The device can be configured to generate interrupt events based on a threshold crossing or when a new set of data is generated. The event is available in a register as well as on a dedicated pin.

The UVIS25 is available in a full-mold LGA package (LGA). It is guaranteed to operate over a temperature range extending from -20 °C to +85 °C. The package is transparent to allow external solar radiation to reach the sensing element.

uvis25這是一個(gè)能夠提供紫外線指數(shù)準(zhǔn)確的數(shù)字測(cè)量紫外線指數(shù)（UVI）從陽(yáng)光傳感器。它包括一個(gè)傳感元件和混合信號(hào)ASIC提供紫外線指數(shù)數(shù)據(jù)通過I2C和SPI接口。

已經(jīng)開發(fā)了一個(gè)專門的技術(shù)，以達(dá)到最大的精度為紫外指數(shù)測(cè)量。

uvis25這允許紫外線指數(shù)測(cè)量，沒有一個(gè)專門的算法來(lái)計(jì)算紫外線指數(shù)的需要，沒有特定的校準(zhǔn)客戶生產(chǎn)線。

該設(shè)備可以被配置為基于閾值交叉或當(dāng)一組新的數(shù)據(jù)產(chǎn)生時(shí)產(chǎn)生中斷事件。該事件可在一個(gè)寄存器，以及在一個(gè)專門的腳。

在一個(gè)完整的uvis25模具LGA封裝是可用的（LGA）。它是保證工作在溫度范圍從- 20°C延伸至85°C的封裝是透明的，以允許外部的太陽(yáng)輻射到達(dá)傳感元件。

Key Features

• 0 - 15 UV index output range

• Resolution: UVI/16

• Active and power down modes

• Continuous reading at 1 Hz ODR / one shot mode

• Interrupt functions: Data Ready and UVI thresholds

• SPI and I2C interfaces

• Supply voltage: 1.7 to 3.6 V

• ECOPACK^?lead-free compliant

主要特點(diǎn)

15 - 0紫外線指數(shù)輸出范圍

分辨率：UVI / 16

主動(dòng)和掉電模式

在1 Hz的ODR /拍攝模式連續(xù)閱讀

中斷功能：數(shù)據(jù)準(zhǔn)備和UVI閾值

我2C接口SPI

電源電壓：1.7至3.6伏

?ECOPACK無(wú)鉛兼容