PS9531-AX

Isolators - Gate Drivers Overview

The PS9531-AX is a high-speed logic output optocoupler manufactured by CEL, designed for gate driver applications. It features a single channel with a photo IC output and operates within an extended temperature range of -40°C to +125°C. Key electrical parameters include a maximum continuous output current of 2.5 A, an isolation voltage of 5000 Vrms, and a forward current of 10 mA. The device exhibits a typical rise time of 50 ns and a fall time of 40 ns, with a power dissipation rating of 45 mW at 25°C. It is housed in an 8-pin DIP package.

Isolators - Gate Drivers Feature Summary

• High common-mode transient immunity (CMTI) for reliable operation in noisy environments
• Optimized for driving IGBTs and MOSFETs in variable frequency drives and motor control
• Provides galvanic isolation between control circuitry and power switches

Isolators - Gate Drivers Applications

• Variable frequency drives (VFDs)
• Motor drive circuits
• Industrial power supplies
• Inverter systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix against official Renesas or CEL documentation to confirm pinout compatibility and packaging type. Ensure the procurement source provides valid RoHS compliance certificates. Cross-reference the manufacturer part number with the latest datasheet revision to confirm active status and any potential obsolescence notices before finalizing orders.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching and robust noise immunity are required for isolated gate driving. The 5000 Vrms isolation rating suits high-voltage industrial applications. Consider the 2.5 A peak output capability for direct drive of medium-power IGBTs or MOSFETs without additional buffer stages. Verify thermal management requirements given the 45 mW power dissipation specification.

Isolators - Gate Drivers Part Context

The PS9531 series belongs to a family of high-performance optocouplers designed specifically for power electronics. These devices integrate an AlGaAs LED with a high-speed photodiode array and output stage. The series offers variations in propagation delay and CMTI ratings to suit different application speeds and noise environments, maintaining consistent isolation and drive capabilities across variants.

Isolators - Gate Drivers Replacement Considerations

Check for PS9531L1, PS9531L2, and PS9531L3 variants which share the same core functionality but may differ in propagation delay specifications or packaging options. Confirm that substitute parts maintain the 5000 Vrms isolation rating and 2.5 A output current capability.