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TLP3440(TP,F

TLP3440(TP,F

Toshiba Semiconductor and Storage
Solid State Photo-Coupled Relay (Photorelay) SPST-NO (1 Form A) 4-SMD (0.096", 2.45mm)
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Overview

The TLP3440 is a high-speed photorelay consisting of a photo-MOSFET optically coupled to an infrared light emitting diode in a compact VSON4 package. It is designed to replace mechanical relays in high-frequency signal switching applications, offering a maximum load voltage of 40V and a continuous load current of 120mA.

Why Choose This Part

The TLP3440 offers significantly faster switching speeds and higher reliability than mechanical relays due to its solid-state construction. Its ultra-small VSON4 footprint saves board space, while the optical isolation ensures robust protection against electrical noise and transients between the input and output stages.

Applications

Semiconductor Test Equipment
Used in Automated Test Equipment (ATE) for high-speed switching of signal lines with minimal parasitic capacitance.
High-Speed Logic Circuitry
Provides galvanic isolation between low-voltage control logic and high-frequency signal paths.
Measurement Instrumentation
Ideal for data acquisition systems requiring fast switching times and long operational life compared to electromechanical relays.
Programmable Logic Controllers
Functions as a solid-state output switch for low-power industrial control signals.

Key Specifications

Circuit SPST-NO (1 Form A)
Relay Type Photo-Coupled Relay (Photorelay)
Output Type AC, DC
Load Current 120 mA
Mounting Type Surface Mount
Package / Case 4-SMD (0.096", 2.45mm)
Voltage - Load 0 V ~ 40 V
Voltage - Input 1.27VDC
Termination Style SMD (SMT) Tab
Operating Temperature -40degC ~ 110degC
Supplier Device Package 4-VSON (1.45x2.45)
On-State Resistance (Max) 14 Ohms

Getting Started

When designing with the TLP3440, ensure the input LED current is limited by a series resistor to meet the 1.27V typical forward voltage requirement. For evaluation, use a standard SMD breakout board for the 2.45mm x 1.3mm VSON4 package to test switching characteristics under the 40V maximum load rating.

Also Consider

CPC1002N IXYS Integrated Circuits - A 60V rated solid-state relay in a slightly larger 4-pin SOP package for higher voltage overhead.

Categories

Electromechanical > Relays