PS2845-4A-AX

Overview

The PS2845-4A-AX is a quad-channel optocoupler featuring GaAs infrared LEDs and NPN silicon phototransistors. It provides 1500Vrms isolation voltage with a 50% to 400% current transfer ratio. The device operates within a -55°C to +100°C temperature range, utilizing an ultra-shrink SOP (USSOP) 12-pin surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 70V, forward current of 30mA, and typical rise/fall times of 5μs/7μs.

Feature Summary

• Four independent channels for multi-signal isolation
• Compact ultra-shrink SOP packaging for space-constrained designs
• High isolation voltage capability for safety-critical applications

Applications

• Industrial automation control systems
• Power supply feedback loops
• Communication interface isolation

Procurement Notes

Verify the specific suffix AX against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the procurement source provides valid traceability documentation. Confirm that the component meets the required insulation standards for the target application environment before finalizing orders.

Selection Notes

Select this component when high channel density and compact footprint are critical requirements. The quad configuration reduces board space compared to discrete single-channel units. Verify that the 1500Vrms isolation rating aligns with the system's safety clearance needs and that the NPN output type matches the downstream logic interface requirements.

Part Context

This part belongs to Renesas' PS series of optocouplers, designed for general-purpose isolation. The PS2845 variant specifically targets applications requiring multiple isolated channels in a minimal package size. It serves as a solution for signal transmission across different potential domains in industrial and consumer electronics.

Replacement Considerations

Direct substitutes may include other quad-channel optocouplers from Renesas or compatible manufacturers offering similar 12-pin USSOP packages. Verify that any replacement maintains the same 1500Vrms isolation rating and NPN output configuration to ensure circuit compatibility.