TOSHIBA Photocoupler GaAs Ired & Photo−Transistor
TLP523, TLP523−2, TLP523−4
Programmable Controllers DC−Output Module Solid State Relay
The TOSHIBA TLP523, −2 and −4 consists of a gallium arsenide infrared emitting diode coupled with a silicon, darlington connected, phototransistor which has an integral base−emitter resistor to optimize switching speed and elevated temperature characteristics.
The TLP523−2 offers two isolated channels in a eight lead plastic DIP package, while the TLP523−4 provide four isolated channels per package.
* Current transfer ratio: 500% (min.) (IF = 1 mA)
* Isolation voltage: 2500 Vrms (min.)
* Collector−emitter voltage: 55 V (min.)
* Leakage current: 10µA (max.) (Ta = 85°C)
* UL recognized: UL1577, file no. E67349 Pin
Pin Configurations (top view)
Absolute Maximum Ratings (Ta = 25°C)
| Characteristic | Symbol | Rating | Unit |
| TLP523 | TLP523−2 TLP523-4 |
| LED | Forward current | IF | 60 | 50 | mA |
| Forward current derating | ΔIF / °C | −0.7 (Ta ≥ 39°C) | −0.5 (Ta ≥ 25°C) | mA /°C |
| Pulse forward current | IFP | 1 (100μs pulse, 100pps) | A |
| Reverse voltage | VR | 5 | V |
| Detector | Collector−emitter voltage | VCEO | 55 | V |
| Emitter−collector voltage | VECO | 0.3 | V |
| Collector current | IC | 150 | mA |
| Collector power dissipation (1 circuit) | PC | 150 | 100 | mW |
| Collector power dissipation derating (1 circuit Ta ≥ 25°C) | ΔPC / °C | -1.5 | -1.0 | mW /°C |
| Storage temperature range | Tstg | −55~100 | °C |
| Operating temperature range | Topr | −55~125 | °C |
| Lead soldering temperature(10s) | Tsol | 260 | °C |
| Total power dissipation | PT | 250 | 150 | mW |
| Total power dissipation derating (Ta ≥ 25°C) | ΔPT / °C | -2.5 | -1.5 | mW / °C |
| Isolation voltage (Note 1) | BVS | 2500 (AC, 1min., R.H.≤ 60%) | Vrms
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(Note 1) Device considered a two terminal device: LED side pins shorted together and detector side pins shorted together.
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Programmable Controllers Dc-Output Module Solid State Relay TLP523-2 Images
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