TLP2768B(D4LF4,E(T

Logic Output Optoisolators Overview

The TLP2768B(D4LF4,E(T) is a high-speed logic coupler manufactured by Toshiba Semiconductor and Storage. It features a single channel with an open-drain output type, housed in a 6-pin SO-6L (SO6L) surface-mount package. The device supports a data rate of 20 Mb/s and provides an insulation voltage of 5000 Vrms. Key electrical parameters include a forward current of 25 mA, a forward voltage of 1.57 V, and a reverse voltage rating of 5 V. The output current capacity is 25 mA with a power dissipation of 85 mW. Timing characteristics specify a rise time of 14 ns and a fall time of 1 ns. The component operates within a temperature range of -40°C to +125°C.

Logic Output Optoisolators Feature Summary

• Integrates a high-output LED with a high-gain, high-speed photodetector for efficient signal transmission.
• Provides high common-mode transient immunity (CMTI) of 50 kV/µs to ensure reliable operation in noisy environments.
• Features an open-drain output configuration suitable for direct interfacing with digital logic circuits.

Logic Output Optoisolators Applications

• Programmable Logic Controller (PLC) input/output modules
• Factory automation control systems
• High-speed data communication interfaces requiring galvanic isolation

Logic Output Optoisolators Procurement Notes

Verify the complete part number including the suffix (D4LF4,E(T) against official Toshiba documentation to confirm specific packaging and compliance details. Ensure the procurement source is an authorized distributor to guarantee authenticity. Cross-reference the RoHS and VDE certification status as indicated in the product specifications before finalizing orders.

Logic Output Optoisolators Selection Notes

Select this component when high-speed signal isolation is required alongside robust noise immunity. The 20 Mb/s data rate and 50 kV/µs CMTI make it suitable for demanding industrial applications. Compare the open-drain output and 25 mA drive capability against system interface requirements. Consider the SO6L package size for space-constrained PCB layouts compared to standard SO-6 packages.

Logic Output Optoisolators Part Context

This device belongs to the TLP2768 series of high-speed optocouplers from Toshiba. It is designed to replace older relay or transformer-based isolation methods in modern digital systems. The series typically includes variants like the TLP2768A, which may differ in speed or output configuration. These components are widely used in industrial electronics where safety isolation and signal integrity are critical.

Logic Output Optoisolators Replacement Considerations

Check for pin-compatible alternatives such as the TLP2768A(E(T if lower speed requirements allow. Verify that any substitute maintains the 5000 Vrms isolation rating and compatible output current capabilities. Ensure the replacement package matches the SO6L footprint to avoid PCB redesign.

Logic Output Optoisolators FAQ

What is the common-mode transient immunity (CMTI) of the TLP2768B?

The TLP2768B offers a common-mode transient immunity of 50 kV/µs, ensuring reliable performance in high-noise environments.

Does the TLP2768B have a built-in pull-up resistor?

No, the TLP2768B features an open-drain output, which requires an external pull-up resistor to function correctly in logic circuits.