FEDL8511-05 Issue Date: March 08, 2013 ML8511 UV Sensor with Voltage Output GENERAL DISCRIPTION The ML8511 is a UV sensor, which is suitable for acquiring UV intensity indoors or outdoors. The ML8511 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 0.1A, thus enabling a longer battery life. FEATURES * Photodiode sensitive to UV-A and UV-B * Embedded operational amplifier * Analog voltage output * Low supply current (300A typ.) and low standby current (0.1A typ.) * Small and thin surface mount package (4.0mm x 3.7mm x 0.73mm, 12-pin ceramic QFN) APPLICATIONS * Smart phone, Watch, Weather station,Bicycle navigation, Accessary, Gaming BLOCK DAIAGRAM TP VDD EN 7 4 9 Amplifier 8 OUT UV Photodiode ML8511 5 10 GND TR PIN CONFIGURATIONS Pin 7 5 4 8 9 10 Symbol VDD GND EN OUT TP TR I/O PW PW I O I/O I/O 1,2,3, 6,11,12 NC - Function Supply voltage. Decouple this pin to ground with 0.1 F capacitor. Ground Active high enable pin. (High: Active mode, Low: Standby mode) Output (Low in power down or standby mode) Test pin. Do not connect. Internal reference voltage. Decouple this pin to ground with 1 nF capacitor. No Connection. Do not connect. 1/8 FEDL8511-05 ML8511 EXAMPLE OF CONNCTING DIAGRAM ML8511 7 VDD OUT 8 EN 4 0.1uF 5 GND ADC PORT TR 10 1nF * Load resistance of OUT port is recommended more than 100 k. 2/8 FEDL8511-05 ML8511 ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Rating unit VDD Ta=25 C -0.3 to +4.6 V Input Voltage VI Ta=25 C -0.3 to +4.6 V Output Short Current IOS Ta=25 C 5 mA Power Dissipation PD Ta=25 C 30 mW Storage Temperature Tstg - -30 to +85 C Supply Voltage RECOMENTED OPERATION CONDITIONS Parameter Symbol Min. Typ. Max. unit Operating Voltage VDD 2.7 3.3 3.6 V Operating Temperature Ta -20 - 70 C ELECTRO-OPTICAL CHARACTERISTICS (VDD=+2.7V to +3.6V, Ta= -20C to +70C) Parameter Symbol Condition Min. Typ. Max. unit Supply Current (active mode) IDDA VEN=VDD - 300 500 A Supply Current (standby mode) IDDS VEN=0 - 0.1 1 A Input Voltage (High level) VIH - VDD x 0.8 - VDD + 0.3 V Input Voltage (Low level) VIL - -0.2 - 0.72 V High level input current IIH VEN=VDD - - 1 A Low level input current IIL VEN=0 -1 - - A Wavelength of maximum sensitivity p Ta=25C - 365 - nm Output Setup Time TSU - - 1 ms Output Voltage (Shading) * VREF VEN=VDD Ta=25C, VEN=VDD Ta=25C, VEN=VDD 0.95 1.0 1.05 V 2.08 2.2 2.32 V Output Voltage (10mW/cm at p) * 2 VO * Load resistance of OUT port is recommended more than 100 k. 3/8 FEDL8511-05 ML8511 OUTPUT VALTAGE- UV INTENSITY CHARCTERISTICS VDD=3.0V 3.5 Output Voltage (V) 3.0 2.5 2.0 75 25 1.5 -5 1.0 -25 0.5 0 3 6 9 12 2 UV Intensity (mW/cm ) @ 365nm 15 SPECTRAL RESPONSIVILITY CHARACTERISTICS Ta=25C, VDD=3.0V Relative Responsivity 1.0 0.8 0.6 0.4 0.2 0.0 280 320 360 400 440 480 520 560 Wavelength (nm) 4/8 FEDL8511-05 ML8511 TIMING CHART Supply voltage and EN signal state should take one of the following procedures: 1. EN should be HIGH or LOW at the same time when VDD is applied. 2. EN should be HIGH or LOW while VDD is applied. Output should be read after output voltage level becomes stable. Maximum time required until stable output voltage reaches is 1 millisecond after EN goes HIGH. VDD EN TSU OUT 5/8 FEDL8511-05 ML8511 PACKAGE DIMENTIONS (Unit: mm) Notes for Mounting the Surface Mount Type Package The surface mount type packages are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact our responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). Specifications are defined without considering the UV absorption by an external cover material. Please contact our sales representativeus when the cover material is applied. Do not press or rub the surface of the resin covering the top of the package where, which is on the UV-ray is light received. In addition, do not apply pressure at high temperature. 6/8 FEDL8511-05 ML8511 REVISON HISTORY Document No. Date Page Previous Current Edition Edition FEDL851100FC-01 Sep. 3, 2008 - FEDL8511-02 Jan. 24, 2008 FEDL8511-03 FJDL8511-04 FJDL8511-05 Preliminary edition - 1 Added disclaimer - - Changed Logo OKI to OKI SEMICONDUCTOR 1 5 2 1 3 2 3 2 Changed load resistance 500 k to 100 k - 3 Added graphs - 4 Added "TIMING CHART" 1 1 Feature description is removed. Applications section is added. 4 4 Explanation is provided to the timing chart. 5 5 Package drawing is updated. Descriptions in the NOTE are modified. DISCLIMER is removed. 1 1 Descriptions in Pin configurations are modified. - 2 Example of connecting diagram is added. Nov. 7, 2008 Jan. 17, 2013 Mar. 8, 2013 Description The following items has been moved: PACKAGE, NOTICE, PRECAUTION and DISCLAIMER. The following items have been moved: BLOCK DIAGRAM and PIN CONFIGRATION The following tables has been partially modified: RECOMMENDED OPERATING CONDITIONS ELECTRO-OPTICAL CHARACTERISTICS 7/8 FEDL8511-05 ML8511 NOTES No copying or reproduction of this document, in part or in whole, is permitted without the consent of LAPIS Semiconductor Co., Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing LAPIS Semiconductor's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from LAPIS Semiconductor upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 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