max44009_中文手册.pdf

AVAILABLE EVALUATION KIT AVAILABLE 本文是英文数据资料的译文，文中可能存在翻译上的不准确或错误如需进一步确认，请在您的设计中参考英文资料 有关价格、供货及订购信息，请联络Maxim亚洲销售中心：10800 852 1249 (北中国区)，10800 152 1249 (南中国区)， 或访问Maxim的中文网站： 功耗最低的环境光传感器， 内置ADC 19-5719; Rev 0; 1/11 概述 MAX44009环境光传感器提供I2C数字输出，可理想用于 智能、笔记本电脑、工业传感器等便携产品器件工作 电流小于1µA，是业内功耗最低的环境光传感器，具有22 位超宽动态范围(0.045流明至188,000流明) 由于能够检测极其微弱的光线，可理想工作在深色玻璃环 境下 片上光电二极管的光谱响应针对人眼对环境光的响应进行优 化，集成红外及紫外线屏蔽自适应增益电路可自动选择正 确的流明范围优化测试(计数值/流明) IC设计工作在1.7V至3.6V供电电压范围，满负荷工作时仅 消耗0.65µA电流器件采用小尺寸2mm x 2mm x 0.6mm UTDFN-Opto封装。

应用 平板PC/笔记本电脑 TV/投影仪/显示器 数字照明管理 便携式设备 蜂窝/智能 安全系统 特性 S 0.045流明至188,000流明宽检测范围 S 小尺寸、2mm x 2mm x 0.6mm UTDFN-Opto封装 S VCC = 1.7V至3.6V S 工作电流ICC = 0.65µA S -40°C至+85°C工作温度范围 S 器 件可选地址 1001 010x和1001 011x 定购信息 +表示无铅(Pb)/符合RoHS标准的封装 *EP = 裸焊盘 方框图 PARTPIN-PACKAGETEMP_RANGE MAX44009EDT+6 UTDFN-Opto-EP* -40NC to +85NC DIGITAL SIGNAL PROCESSING 6-BIT RANGE CDR, TIM CONTROL VISIBLE +IR PHOTODIODE IR PHOTODIODE I2C VCC MAX44009 N GND AO SCL SDA INT 16-BIT ADC 16-BIT ADC MAX44009 功耗最低的环境光传感器， 内置ADC Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. INT to GND . -0.3V to (VCC + 0.3V) All Other Pins to GND .-0.3V to +4V INT Short-Circuit Current Duration 10s All Other Pins Short-Circuit Current Duration Continuous Continuous Input Current into Any Terminal .Q20mA Continuous Power Dissipation 6 UTDFN-Opto (derate 11.9mW/NC above +70NC) .953mW Operating Temperature Range -40NC to +85NC ELECTRICAL_CHARACTERISTICS (VCC = 1.8V, TMIN to TMAX = -40NC to +85NC, unless otherwise noted.) (Note 1) AbSoLuTE_MAxIMuM_RATINGS PARAMETERSYMboLCoNDITIoNSMINTYPMAxuNITS oPTICAL_CHARACTERISTICS Maximum Lux SensitivityFluorescent light 0.045Lux/LSB Saturation Ambient Lux LevelSunlight188,000Lux Total ErrorTE Green LED 538nm response, TA = +25NC (Note 2) 15% Light Source Matching Fluorescent/incandescent light 10% Infrared Transmittance at 940nmIRRTA = +25NC (Note 3)00.5% Ultraviolet Transmittance at 363nm UVRTA = +25NC (Note 3)1.2% Dark Level Count0LUX0 lux, TA = +25NC, 800ms range00.045Lux Maximum Signal Integration Time Has 50/60Hz rejection800ms Minimum Signal Integration Time Automatic mode, has 50/60Hz rejection100 ms Manual mode only6.25 ADC Conversion TimeACT 100ms range, TA = +25NC99.6100100.4 ms 100ms range97103107 PoWER_SuPPLY Power-Supply VoltageVCCGuaranteed by TE test1.73.6V Power-Supply CurrentICC TA = +25NC, 90 lux, I2C inputs inactive0.651.2 FA TA = -40NC to +85NC1.6 DIGITAL_I/o_CHARACTERISTICS Output Low Voltage SDA, INTVOLISINK = 6mA0.060.4V INT Leakage CurrentTA = +25NC0.0120nA SCL, SDA, A0 Input CurrentIIH, IILTA = +25NC0.0120nA I2C Input Low VoltageVIL_I2CSDA, SCL 0.3 x VCC V I2C Input High VoltageVIH_I2CSDA, SCL 0.7 x VCC V Address Input Low VoltageVIL_A0A00.3V Address Input High VoltageVIH_A0A0 VCC - 0.3V V Input Capacitance 3pF 2Maxim Integrated MAX44009 功耗最低的环境光传感器， 内置ADC ELECTRICAL_CHARACTERISTICS_(continued) (VCC = 1.8V, TMIN to TMAX = -40NC to +85NC, unless otherwise noted.) (Note 1) Note_1: All devices are 100% production tested at TA = +25NC. Temperature limits are guaranteed by design. Note_2: Green 538nm LED chosen for production is such that the IC responds to 100 lux fluorescent light with 100 lux. Note_3: With respect to green LED 538nm response. Note_4: A master device must provide a hold time of at least 300ns for the SDA signal (referred to VIL of the SCL signal) to bridge the undefined region of SCL’s falling edge. PARAMETERSYMboLCoNDITIoNSMINTYPMAxuNITS I2C_TIMING Serial-Clock FrequencyfSCL 400kHz Bus Free Time Between a STOP and a START Condition tBUF 1.3Fs Hold Time (Repeated) START Condition tHD,STA 0.6Fs Low Period of the SCL ClocktLOW 1.3Fs High Period of the SCL ClocktHIGH 0.6Fs Setup Time for a Repeated START Condition tSU,STA 0.6Fs Data Hold TimetHD,DAT(Note 4)00.9Fs Data Setup TimetSU,DAT 100ns Fall Time of SDA TransmittingtF ISINK P 6mA, tR and tF are measured between 0.3 x VDD and 0.7 x VDD 100ns Setup Time for STOP ConditiontSU,STO0.6Fs Pulse Width of Spike Suppressed tSP Input filters on the SDA and SCL inputs suppress noise spikes 050ns Maxim Integrated3 MAX44009 功耗最低的环境光传感器， 内置ADC 典型工作特性 (VCC = 1.8V, default power-up setting, unless otherwise noted.) SPECTRUM RESPONSE MAX44009 toc01 WAVELENGTH (nm) CIE NORMALIZED RESPONSE 900800700600500400 20 40 60 80 100 120 0 3001000 MAX44009 RESPONSE RADIATION PATTERN MAX44009 toc02 LUMINOSITY ANGLE (°) RELATIVE SENSITIVITY (% FROM 0°) 60300-30-60 10 20 30 40 50 60 70 80 90 100 0 -9090 AUTO MODE, INCANDESCENT LAMP SPECTRUM OF LIGHT SOURCES FOR MEASUREMENT MAX44009 toc03 WAVELENGTH (nm) NORMALIZED RESPONSE 900800400500600700 20 40 60 80 100 120 140 160 0 3001000 INCANDESCENT S。