XinaBox OC03

OC03 is a low-voltage control relay module able to switch AC and DC loads.

The optically isolated relay is controlled by a PCA9554A IO expander, which provides an control interface to the switch. The PCA9554A has several selectable I2C addresses accessible via solder pads.

The TLP241A photorelay consist of a photo MOSFET optically coupled to an infrared light emitting diode which switches a AC or DC load. It provides an isolation voltage of 5000 Vrms, making it suitable for applications that require reinforced circuit insulation.

Technical Details

PCA9554A

  • 400-kHz Fast I2C Bus
  • Three Hardware Address Pins Allow up to Eight I2C Addresses
  • Internal Power-On Reset
  • No Glitch on Power Up
  • Latched Outputs With High-Current Drive

TLP241A

  • Normally Open
  • OFF-state output terminal voltage: 40 V (min)
  • Trigger LED current: 3 mA (max)
  • ON-state current: 2 A (max)
  • ON-state resistance:
    1. 100 mΩ (max, t < 1 s)
    2. 150 mΩ (max, Continuous)
  • Isolation voltage: 5000 Vrms (min)