TPS811

The TPS811 is a kind of photo IC that integrates a photodiode, amplifier circuit and Schmitt trigger circuit into a single chip. The device responds faster than the phototransistor type and outputs a high when light is input. TPS811 is silicon epitaxial planar. The device is intended for photoeletric switches, copiers, printers and facsimiles, commodity and ticket bending machines and terminal equipment in financial computer systems and handy terminals.

There are some features of TPS811 as follows: (1)compact side-view epoxy resin package; (2)high speed response: tpLH=2.5s, tpHL=5.5s typ; (3)high sensitivity: 0.3 mW/cm2 max; (4)can be directly connected to TTL and CMOS; (5)operates over a wide supply voltage range: VCC=4.5 to 17 V; (6)digital output: open collector.

The following is about the maximum ratings of TPS811 (Ta=25): (1)supply voltage, VCC: 17 V; (2)output voltage, VO: 30 V; (3)output current, IO: 50 mA; (4)output current derating (Ta>25), IO/: -0.67 mA/; (5)power dissipation, PO: 250 mW; (6)power dissipation derating (Ta>25), PO/: -3.33 mW/; (7)operating temperature range, Topr: -30 to 85; (8)storage temperature range, Tstg: -40 to 100; (9)soldering temperature (5s), Tsol: 260.

The last one is about the opto-eletrical characteristics of TPS811 (Ta=-30 to 85, VCC=4.5 to 17 V, typical values are all at 25): (1)supply voltage, VCC: 4.5 V min and 17 V max; (2)high level supply current, ICCH: 1.2 mA typ and 3.2 mA max when E=2 mW/cm2; (3)low level supply current, ICCL: 2.5 mA typ and 5.2 mA max when E=0; (4)high level output current, IOH: 15A max when E=2 mW/cm2, VO=30 V; (5)low level output voltage, VOL: 0.07 V typ and 0.4 V max at IOL=16 mA, E=0.