TLP191B is a small outline coupler, suitable for surface mount assembly. It consists of a GaAℓAs light emitting diode, optically coupled to a series connected photo diode array with shunt resistor, which is suitable for MOS FET gate drive.
The TLP191B is a miniature flat‑pack GaAs photocoupler designed for MOS‑FET gate‑drive applications. It integrates an infrared LED with a photo‑diode array and shunt resistor, and is suitable for surface‑mount assembly.
The document lists maximum ratings, recommended operating conditions, and detailed electrical parameters such as forward current, isolation voltage, and switching times, along with safety and handling notes for designers.
| Open voltage (min) | 7.0 V |
|---|---|
| Short current (min) | 24.0 µA |
| Isolation voltage (min) | 2500 Vrms |
| Forward current IF | 50 mA |
| Forward voltage VF (typ) | 1.2‑1.7 V |
The device is rated for a minimum isolation voltage of 2500 Vrms.
The maximum forward current (IF) is specified as 50 mA.