TLP109(E

Overview

The TLP109(E) is a high-speed optocoupler manufactured by Toshiba Semiconductor and Storage. It features a single channel with a GaAlAs infrared LED coupled to a phototransistor output. The device provides an insulation voltage of 3750 Vrms and operates within a temperature range of -55°C to +125°C. Key electrical parameters include a maximum forward current of 20 mA, a typical forward voltage of 1.64 V, and an output current of 8 mA. The data rate supports up to 1 Mb/s, with rise and fall times of 800 ns each. It is housed in a 6-SOIC package with five effective leads.

Feature Summary

• High-speed operation suitable for digital logic isolation interfaces
• TTL compatible input and output characteristics
• Small outline surface-mount packaging for compact designs
• Meets reinforced insulation class requirements for safety standards

Applications

• Isolation interface between Intelligent Power Modules (IPM) and control IC circuits
• Digital logic isolation in industrial inverters
• Power supply feedback control systems
• Motor control applications requiring high common mode transient immunity

Procurement Notes

Verify the specific suffix against official Toshiba documentation to confirm exact packaging and compliance status. Ensure the ordering code matches the required reel or tube configuration. Confirm RoHS3 compliance and moisture sensitivity level requirements for your assembly process. Cross-reference the datasheet revision date to ensure all electrical specifications align with your design constraints before finalizing procurement.

Selection Notes

Select this component when high-speed signal transmission is required alongside robust electrical isolation. The 3750 Vrms rating makes it suitable for applications demanding reinforced insulation. Consider the 6-SOIC footprint for space-constrained PCB layouts. Verify that the 8 mA output current meets the load requirements of the receiving circuit. Ensure the operating temperature range covers the environmental conditions of the target application.

Part Context

The TLP109 series belongs to Toshiba's line of mini-flat couplers designed for surface-mount assembly. These devices utilize a GaAlAs light emitting diode optically coupled to a high-speed photodiode-transistor chip. The series is engineered to provide reliable signal transmission across isolation barriers while maintaining small physical dimensions. This specific variant focuses on high-speed performance for industrial and power electronics applications.

Replacement Considerations

Check for direct substitutes within the TLP109 family, such as TLP109(IGM), which shares similar packaging and functional characteristics. Verify pinout compatibility and electrical parameter overlaps before substitution. Ensure any replacement part meets the same insulation voltage and speed requirements. Consult official Toshiba cross-reference guides for validated alternatives.