With the I2C output card, 8 digital consumers can be switched.
The output driver TBD62783APG switches a positive voltage up to 30V.
With the I2C output card, 8 digital consumers can be switched.
The output driver TBD62783APG switches a positive voltage up to 30V.
The outputs are galvanically isolated from the I2C bus using optocouplers.
The circuit uses the negative logic because the I2C port expansion module PCF8574 switches on all outputs at voltage.
When controlling, only the desired bit pattern has to be inverted. Or subtract from the 255 desired output value before transferring it to the output card.
Dimension of the circuit board 42 mm x 63 mm
| 1 | circuit board IAOK_LP lead-free tinned with solder resist |
| 2 | Resistor network 8x 1,5k |
| 1 | Resistor network 8x 10k |
| 8 | LED 3mm 2mA green |
| 1 | Ceramic Capacitor 100 nF |
| 1 | PCF8574P or PCF8574A + IC socket 16 pin |
| 1 | TBD62783APG + IC socket 18 pin |
| 2 | Opto coupler TLP293-4 soldered |
| 3 | pin connectors 3 pol and Jumper |
| 1 | terminal 4 pol. |
| 1 | terminal 10 pol. |
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