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Connecting Digital Outputs of Vector Hardware

Last updated: 2019-01-24

When working with digital outputs of Vector hardware it is important to check whether the output is of type push-pull or open drain (open collector).

The digital out of the VN1630A/VN1640A for example is an open drain and not a push-pull digital out.

Hence, it is required to use an external voltage supply.

The open drain output can be used to drive a high side load. Check the specific device datasheet for actual values of maximum load current and maximum external supply voltage (i.e. the maximum current for VN1630A/VN1640A digital output is 500 mA).

To use the open drain output as a control signal, an external pull up resistor should be used. A typical value is 10 kOhm.


The actual specifications are interface dependent.

For maximum current, voltage and exact pin layout please refer to the most recent technical documentation of the corresponding interface (driver disk).

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