PS2805C-4-A

Overview

The PS2805C-4-A is a four-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor within a 16-pin SSOP package. Key electrical parameters include a minimum current transfer ratio of 50% and a maximum of 400%. The device supports a forward current of 30 mA with a forward voltage of 1.4 V. It features a high isolation voltage of 2500 Vrms and a maximum collector-emitter voltage of 80 V. The unit operates within a temperature range of -55°C to +100°C, with typical rise and fall times of 5 μs and 7 μs respectively.

Feature Summary

• Provides high isolation voltage for effective circuit separation
• Features AC input response capability for versatile signal coupling
• Includes shielded plastic SSOP packaging to block ambient light interference

Applications

• Programmable logic controllers
• Office automation equipment
• Measurement instruments
• Mixed integrated circuits

Procurement Notes

Verify the component status carefully before procurement as this part is marked NRND, indicating it is not recommended for new designs. Confirm that the specific suffix matches the required tape or reel packaging format. Ensure compatibility with existing PCB footprints and thermal management requirements given the operating temperature limits. Cross-reference datasheet revisions to confirm safety certifications remain valid for your target market regulations.

Selection Notes

Select this component when a compact four-channel isolation solution is required for dense circuit layouts. The narrow SSOP pitch facilitates space-constrained designs while maintaining high voltage isolation standards. Consider the specified current transfer ratio range to ensure adequate signal transmission margins under varying temperature conditions. Evaluate the switching speed characteristics against the system's data rate requirements to prevent timing errors in high-frequency applications.

Part Context

This device belongs to the PS2805C series of optical couplers designed for high-density applications. The series utilizes GaAs LEDs and NPN phototransistors to deliver reliable signal transmission across isolated boundaries. The specific model offers four independent channels within a single small outline package, providing a cost-effective alternative to discrete isolation components in industrial and consumer electronics systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.