Delight Union LimitedLightspeed ThinkingSuite 2302, 23/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong [email protected], www.delightunion.com1/7Preliminary Product SpecificationsDLU PT100PhototransistorGeneral DescriptionThe DLU PT100 is a high gain phototransistor for optical sensing applications. The incoming light is detected within the active area of 0.9mm diameter. The relatively large active area is well matched to the core diameter of plastic optical fiber (POF) and enables simple coupling schemes. The intrinsic gain of the npn-transistor structure amplifies the photo generated base current by more than a hundred times. Therefore the output current is typically in the μA to mA range and can directly be used in an external circuit, such as an AD converter. ApplicationsFeatures• Planar type npn-phototransistor• Low noise, high optical gain• Active area diameter: 900μm • Chip size: 1135μm × 1135μm • Chip thickness: 200μm ± 25μm• Bond pad size: 140 µm• Top contact: emitter (n), aluminum alloybase (p), aluminum alloy for testing• Backside contact: collector (n), gold alloy • Optical sensing• POF light detection• Laser monitoringECBEBBE• Remote controls• Industrial control• Galvanic isolationDelight Union LimitedLightspeed ThinkingSuite 2302, 23/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong [email protected], www.delightunion.com2/7Optical and Electrical CharacteristicsParameter Symbol Test Conditions Min Typ Max UnitCollector-emitter breakdown voltageVCEBIC= 100μAIB= 070 VEmitter-collector breakdown voltageVECBIC= 10μAIB= 07VVCE = 20V no illumination200 nAVCE = 70V no illumination800 nAIC= 2mAIB= 100μA0.2 VIC= 20mAIB= 100μA2VCurrent gain hFEVCE = 5V IC= 2mA200Collector-base capacitanceCCBf = 1MHzVCB= 3V25 30 40 pFRise/fall time tR/tFVCE = 5V IC= 1mARL= 1kΩ15/15 μsCollector-emitter saturation voltageVCESatCollector dark current ICE0PreliminaryTambient= 25ºC, unless otherwise specifiedAbsolute Maximum RatingsV70VSSupply voltageºC260TSDSoldering temperature (1)ºC+85-40TOPOperating temperatureºC+100-40TSTStorage temperatureUnitMaximumMinimumSymbolParameterExceeding any of these parameters might cause permanent damage to the device(1) For packaged device 5sec, 3 times maximumDelight Union LimitedLightspeed ThinkingSuite 2302, 23/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong [email protected], www.delightunion.com3/7Mechanical Dimensions1020μm 1135μm1020μm100μm140μmn+ guard ringMetal contactn+ emitterp base1135μmParameter Symbol Minimum Maximum UnitChip pitch (1)P 1170 1170 μmChip length L 1125 1145 μmChip width W 1125 1145 μmChip thickness H 175 225 μmBond pad side length E 135 145 μm Active area length, width (2)AL AW1015 1020 μmBase contact pad B 95 105 μmActive area inner diameter AD900 910 μm Fig. 1: Typical chip dimensions and layout(1) Includes 50mm scribe lane(2) Minus bond pad and base contact pad areaPreliminaryEBBE900μmDelight Union LimitedLightspeed ThinkingSuite 2302, 23/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong [email protected], www.delightunion.com4/7Package OptionsPreliminary1.) PT100-C: Bare die4.65.32.472.14.65.32.60.85.32.) PT100-T: TO-can package3.) PT100-S: Plastic packages and other options available upon requestTO-18 headerFlat window capLens capPart Number Diameter Aperture Height UnitsPT100-T01 5.3 NA NA mmPart Number Diameter Aperture Height UnitsPT100-T02 5.3 2.1 2.47 mmPart Number Diameter Aperture Height UnitsPT100-T03 5.3 0.8 2.6 mmPart Number Length Width Height UnitsPT100-C 1135 1135 200 μmPart Number Length Width Height UnitsPT100-S tbd tbd tbs mmDelight Union LimitedLightspeed ThinkingSuite 2302, 23/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong [email protected], www.delightunion.com5/7PreliminaryApplication NoteECBFigure 2 depicts the electrical circuit diagram symbol of the DLU PT100 npn-phototransistor. In most applications only the emitter and collector contact of the transistor are connected to an external circuit. The base current is generated by the incoming light. Fig. 2: Electrical circuit diagram symbol of the DLU PT100 npn-phototransistor. The phototransistor is primarily used in two configurations. The common-emitter circuit (Fig. 3a) generates an output signal which switches from a high voltage state to a low voltage state when light is detected by the phototransistor. The output signal is read at the collector pin of the phototransistor.The common-collector configuration (Fig. 3b) generates an output which switches from a low voltage state to a high voltage state when light is detected by the phototransistor. The output is created by connecting a resistor between the emitter pin of the device and ground. The output is read at the emitter pin.ECBRLVccVoutGNDFig. 3: Phototransistor in a) common-emitter and b) common collector configurationECBRLVccVoutGNDa) b)Delight Union LimitedLightspeed ThinkingSuite 2302, 23/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong [email protected], www.delightunion.com6/7PreliminaryApplication NoteFig. 4: Typical current versus optical input power characteristics for a 1kΩ load resistor01234560 1020304050Optical input power (μW)Emitter collector current (mA)Vcc= 5VVcc= 2VLinear regime Switching regimeThe size of the external load resistor determines, if the phototransistor works in a linear mode where the output current is proportional to the incoming light intensity or in the switching regime where the photocurrent saturates at a certain level. Figure 4 shows the typical behavior for two different supply voltages of 2V and 5V, respectively. The external load resistor is 1kΩ. The linear regime starts at low optical input power levels before the saturation point is reached. A further increase of the incoming light intensity does not further increase the emitter-collector current. The linear regime is larger for a larger supply voltage and a smaller load resistor. The base contact is not connected in most common applications. For special purposes it is possible to connect the base to an external circuitry. Pulling the base to GND level switches the phototransistor off. Please contact Delight Union Ltd., if you need a package pin-out that supports a connected base.Delight Union LimitedLightspeed ThinkingSuite 2302, 23/F, Great Eagle Centre, 23 Harbour Road, Wanchai, Hong [email protected],