FEDL8511A-02 Issue Date: October 6, 2015 ML8511A UV Sensor with Voltage Output GENERAL DESCRIPTION The ML8511A is a UV sensor, which is suitable for acquiring UV intensity indoors or outdoors. The ML8511A is equipped with an internal amplifier, which converts photo-current to voltage depending on the UV intensity. This unique feature offers an easy interface to external circuits such as ADC. In the power down mode, typical standby current is 0.1 A, thus enabling a longer battery life. FEATURES Photodiode sensitive to UV-A and UV-B Embedded operational amplifier Analog voltage output Low supply current (300 A typ.) and low standby current (0.1 A typ.) Small and thin surface mount package (4.0mm x 3.7mm x 0.73mm, 12-pin ceramic QFN) APPLICATIONS Smart phone, Smart watch, Wealable helthcare device, Weather station,Bicycle navigation, Accessary BLOCK DIAGRAM V EN DD 7 4 Amplifier OUT 8 UV Photo- diode ML8511A 5 10 TR GND PIN CONFIGURATIONS Pin Symbol I/O Function 7 VDD PW Supply voltage. Decouple this pin to ground with 0.1 F capacitor. 5 GND PW Ground 4 EN I Active high enable pin. (High: Active mode, Low: Standby mode) 8 OUT O Output (Low in power down or standby mode) 10 TR I/O Internal reference voltage. Decouple this pin to ground with 1 nF capacitor. 1,2,3,6,9,11,12 NC - No Connection. Do not connect. 1/8 FEDL8511A-02 ML8511A EXAMPLE OF CONNECTING DIAGRAM ML8511A 7 VDD 8 OUT ADC 0.1uF 4 EN PORT 5 GND TR 10 1nF * Load resistance of OUT port is recommended more than 100 k. 2/8