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 surface‑mount photocoupler that combines a GaAs infrared LED with a series‑connected photo‑diode array and shunt resistor, intended for MOSFET gate‑drive applications. It is designed for use in general electronics such as computers, office equipment, measuring equipment, industrial robotics, and domestic appliances.
The document lists absolute maximum ratings, recommended operating conditions, and detailed electrical characteristics including forward current, forward voltage, isolation voltage, and switching times. It also includes safety and reliability notes, handling precautions, and restrictions on product use.
| Forward current (IF) max | 50 mA |
|---|---|
| Open voltage (Voc) min | 7 V |
| Short current (Isc) min | 24 pA |
| Forward voltage (VF) typ | 1.4 V |