Family of photocouplers deliver low threshold input current
Renesas Electronics has announced three new 15Mbps photocouplers designed to withstand the harsh operating environments of industrial and factory automation equipment. The trend toward higher voltage, compact systems is driving stricter International safety standards and eco-friendly solutions that require smaller ICs with lower power consumption.
The RV1S9x60A family meets this need with low threshold input current (IFHL) ratings: the RV1S9160A (SO5) operates at 2.0mA, the RV1S9060A (LSO5) at 2.2mA, and the RV1S9960A (LSDIP8) at 3.8mA.
Lower power consumption allows the RV1S9x60A photocouplers to meaningfully suppress power supply heat generation. And high temperature operation up to 125°C enables board space savings by mounting the photocoupler near the IGBT or MOSFET power device. The devices are targeted at DC to AC power inverters, AC servo motors, Programmable Logic Controllers (PLCs), robotic arms, solar and wind input power conditioners, and battery management systems for energy storage and charging.
The RV1S9x60A photocouplers feature high common mode rejection (noise tolerance) up to 50kV/µs (min) to protect microcontrollers and other I/O logic circuits from high voltage spikes while transferring high speed signals. The RV1S9x60A family also offers a variety of packages with the smallest footprint for each reinforced isolation (up to 690Vrms), and minimum creepage distances of 4.2mm to 14.5mm to ensure safe operation.
“Our newest RV1S9x60A 15Mbps photocouplers provide the ultimate balance of low power, high speed, and high noise rejection today’s customers require,” said Philip Chesley, Vice President, Industrial Analogue and Power Business Division, Renesas Electronics. “The devices also comply with and surpass the stringent safety requirements of the UL61800-5-1 and UL61010-2-201 standards, giving manufacturers the best-in-class features and confidence they need to accelerate product development.”
Key Features of RV1S9160A, RV1S9060A and RV1S9960A Photocouplers
- Low voltage power supply operation of 2.7-5.5V
- Isolation voltage: 3,750Vrms (RV1S9160A), 5,000Vrms (RV1S9060A), and 7,500Vrms (RV1S9960A)
- High temperature operation from -40°C to +125°C (RV1S9160A and RV1S9060A), and from -40°C to +110°C (RV1S9960A)
- Supply current of 2.0mA max
- Low pulse width distortion at 20ns max
- Propagation delay of 60ns max; and propagation delay skew of 25ns max
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