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Photocouplers save space in industrial automation and solar inverters

Five 8.2mm creepage photocouplers have a package width of 2.5mm and reduce PCB mounting area by 35% compared to competitive couplers, says the company. They can be used to shrink equipment size, increase robot axes, and improve factory floor productivity and also save space in solar equipment for more installations in limited space. The photocouplers can also be used for DC to AC power inverters, AC servo motors, programmable logic controllers (PLCs), robotic arms, solar inverters, and battery storage and charging systems.

The introductions include the RV1S9260A 15Mbit/s communications coupler and RV1S9213A intelligent power module (IPM) driver. They are the first photocouplers to use LSSO5 packages with a 0.65mm pin pitch, which is half the pitch of conventional packages. Package height is 2.1mm, enabling the photocouplers to be directly mounted on the reverse side of a PCB, freeing up space for components to be mounted on the top of the board. Three times infra red reflow soldering provides maximum flexibility, says the company. The RV1S92xxA photocouplers’ electric isolation and high CMR noise rejection (50kV/µs) protects low voltage microcontrollers and I/O devices from high voltage circuits when transferring high-speed signals.

The company has also launched the RV1S2281A and RV1S2211A, DC input and low DC input, transistor output photocouplers, and the RV1S2285A, an AC input, transistor output coupler. The RV1S22xxA devices also come in LSSOP packages with a 1.30mm pin pitch.

All five photocouplers deliver 5000Vrms reinforced isolation and high temperature operation. The RV1S92xxA and RV1S22xxA photocouplers support 200 and 400V systems with reinforced insulation to meet industrial safety standards. All five devices adhere to the strict UL61800-5-1 standard for motor drive equipment, and the UL61010-2-201 standard for control devices such as PLCs.



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