TLP112A is a photocoupler suitable for digital logic isolation, consisting of a high output power GaAℓAs LED optically coupled to a high-speed detector of a one-chip photodiode-transistor. It features an isolation voltage of 2500Vrms, a switching speed of 0.8µs, and TTL compatibility.
The TLP112A is a miniature GaAs optocoupler designed for surface‑mount assembly. It combines a high‑output power infrared LED with a fast photodiode‑transistor detector, providing isolation up to 2500 Vrms.
The document lists maximum ratings, electrical characteristics, switching performance, test circuit configurations, and safety restrictions for proper use in electronic applications such as computers, office equipment, and industrial robotics.
| Isolation voltage | 2500 Vrms (min) |
|---|---|
| Switching speed (tpHL / tpLH) | 0.8 µs (typ) |
| Forward current (IF) | 20 mA (continuous) |
| Supply voltage (VCC) | -0.5 V to 15 V |
| Isolation resistance | 5 × 10⁹ Ω (DC) |
| Weight | 0.09 g |
The device provides a minimum isolation voltage of 2500 Vrms.
The maximum continuous forward current is 20 mA.
It operates from –0.5 V up to 15 V.
Typical propagation delays are 0.8 µs for both high‑to‑low and low‑to‑high transitions.