Toshiba Semiconductor and Storage TLP223GA(F

Overview

TLP223GA(F) from Toshiba Electronic Devices & Storage Corporation is a normally-open photorelay IC comprising an infrared LED optically coupled to a photo MOSFET output stage. It delivers 400 V OFF-state voltage, 120 mA continuous ON-state current, and 5000 Vrms isolation in a 4-pin DIP through-hole package-enabling solid-state replacement of mechanical relays in smart meter load switching and factory automation I/O isolation.

For engineers reviewing the TLP223GA(F) datasheet, TLP223GA(F) pinout, TLP223GA(F) application, or TLP223GA(F) equivalent, key selection criteria include reinforced insulation compliance (UL/cUL/VDE), low 2 mA max trigger LED current, and dual-drain output configuration for high-voltage AC/DC load control with thermal derating awareness.

Technical Context

The TLP223GA(F) implements optical coupling between GaAs LED and silicon MOSFET die, eliminating galvanic connection while enabling bidirectional AC/DC switching up to 400 V. Its internal two-terminal structure shorts pins 1–2 (LED anode/cathode) and pins 3–4 (MOSFET drains), defining a single-pole, single-throw (1-Form-A) topology with no gate drive circuitry required.

Switching performance is characterized by 0.3 ms typical turn-on time and 0.15 ms typical turn-off time at 20 V supply and 5 mA LED drive. Thermal derating applies to both LED forward current (−1.2 mA/°C above 100 °C) and MOSFET ON-state current (−1.2 mA/°C above 100 °C), requiring board-level thermal design for sustained 120 mA operation.

Key Specifications

Pinout & Package

Housed in a 7.62-mm pitch 4-pin DIP through-hole package (Toshiba designation: 11-5B2S), the TLP223GA(F) features dual-drain output configuration optimized for high-voltage load switching with minimal PCB footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar photorelay applications.

Compared with TLP223GA(F), TLP170G(F) trades off voltage capability for lower cost in low-voltage DC systems, while PS2561-1-V-D-A offers SMT compatibility at the expense of reduced OFF-state voltage and missing D4 certification-making TLP223GA(F) the sole choice for 400 V, VDE-compliant, through-hole photorelay applications.

Availability

TLP223GA(F) is available at Aetrix Electronics and suitable for smart meter manufacturing, factory automation I/O module production, and security system control panel assembly requiring stable component supply across multi-year product lifecycles.

Supply support for TLP223GA(F) includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor components for industrial, automotive, and consumer applications, with emphasis on safety-certified isolation and power management solutions.

The TLP223GA(F) belongs to Toshiba's photorelay product line engineered specifically for replacing electromechanical relays in safety-critical, high-isolation applications such as electricity metering and factory floor control systems.

FAQ

What is the maximum continuous load current supported by the TLP223GA(F)?

The TLP223GA(F) supports a maximum continuous ON-state current of 120 mA. This rating applies under specified thermal conditions (Ta ≤ 100 °C); above that temperature, current must be derated at −1.2 mA/°C. For sustained 120 mA operation, ensure adequate PCB copper area and ambient airflow. The TLP223GA(F)'s 35 Ω max R_ON results in ≤0.5 W conduction loss at full current, requiring thermal validation in enclosed designs.

Does the TLP223GA(F) support AC load switching?

Yes, the TLP223GA(F) supports bidirectional AC load switching due to its MOSFET-based output stage and 400 V OFF-state voltage rating. Its internal structure-shorted pins 3 and 4 as dual drains-enables symmetrical conduction across both half-cycles. However, zero-crossing control requires external timing circuitry, as the TLP223GA(F) itself provides no built-in zero-detection function.

What safety certifications does the TLP223GA(F) hold?

The TLP223GA(F) is UL-recognized (UL 1577, File No. E67349), cUL-recognized (CSA 5A, File No. E67349), and VDE-approved to EN 60747-5-5 and EN 62368-1-when ordered with the D4 option (e.g., TLP223GA(D4,F)). Standard TLP223GA(F) units meet UL/cUL but require D4 designation for full VDE compliance in European safety-critical applications.

How is the pin configuration structured for the TLP223GA(F)?

The TLP223GA(F) uses a 4-pin DIP layout with pins 1 (anode) and 2 (cathode) forming the LED input pair, and pins 3 and 4 both serving as MOSFET drains-internally shorted to create a single-output, normally-open switch. This two-terminal device topology simplifies PCB routing and eliminates gate drive complexity, but requires external current limiting for the LED and load-side protection diodes for inductive loads.

Can the TLP223GA(F) replace mechanical relays in smart meter designs?

Yes, the TLP223GA(F) is explicitly designed for mechanical relay replacement in smart meters, offering 5000 Vrms isolation, 400 V blocking, and long-term reliability without contact wear or bounce. Its creepage distance (7.0 mm) and reinforced insulation meet IEC 62053-21 requirements for revenue-grade metering. The TLP223GA(F) also supports rapid switching for tariff-based load control, unlike slower electro-mechanical alternatives.