ON Semiconductor OPTOLOGIC Photosensor
The QSE25x family of OPTOLOGIC ICs are bipolar silicon photosensors featuring a Schmitt trigger for enhanced noise immunity and pulse shaping. These devices integrate a photodiode, linear amplifier, voltage regulator, and Schmitt trigger, offering robust performance. With a medium wide reception angle of 50, black epoxy sidelooker package, and an integrated daylight filter, they provide high sensitivity and direct TTL/LSTTL interface compatibility. The output can drive up to ten TTL loads across a supply voltage range of 4.5 to 16.0 Volts. Devices are color-striped for easy identification. Typical applications include sensing and control systems requiring reliable optical detection.
Product Attributes
- Brand: ON Semiconductor (formerly Fairchild Semiconductor)
- Product Line: OPTOLOGIC
- Material: Plastic Silicon
- Package Type: Sidelooker
- Package Color: Black Epoxy
- Features: Daylight Filter, High Sensitivity, Direct TTL/LSTTL Interface
Technical Specifications
| Part Number | Description | Output Type | Color Code | Ee(+) Positive Going Threshold Irradiance (mW/cm2) (Typ.) | Supply Current (mA) (Typ.) | High Level Output Voltage (V) (Typ.) | Low Level Output Voltage (V) (Typ.) | Output Rise/Fall Times (nS) (Typ.) | Propagation Delay (S) (Typ.) |
|---|---|---|---|---|---|---|---|---|---|
| QSE256 | Totem-Pole, buffer output | Totem-Pole Buffer | Red | 0.250 | 5.0 | 2.4 | 0.40 | 70 | 6.0 |
| QSE257 | Totem-Pole, inverter output | Totem-Pole Inverter | Yellow | 0.250 | 5.0 | 2.4 | 0.40 | 70 | 6.0 |
| QSE258 | Open-collector, buffer output | Open-Collector Buffer | Green | 0.250 | 5.0 | N/A (Requires pull-up resistor) | 0.40 | 100 | 6.0 |
| QSE259 | Open-collector, inverter output | Open-Collector Inverter | Blue | 0.250 | 5.0 | N/A (Requires pull-up resistor) | 0.40 | 100 | 6.0 |
2411272222_onsemi-QSE259_C898424.pdf
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