How is VCC(Max) determined for an open collector output of an IC?

The determination of VCC(Max) for an open collector output of an IC is best found in the data sheet of the IC. The data sheet provides critical specifications for the device, including maximum voltage levels, current ratings, and operating conditions. It is essential to consult the data sheet because it contains the manufacturer's reliable and tested parameters for the device's performance limits.

When dealing with open collector outputs, knowing VCC(Max) helps in ensuring that the voltage levels do not exceed what the device can handle, thereby preventing damage to the IC and ensuring proper functionality within the intended application. The data sheet guarantees that the values are definitive and based on standard testing conditions, making it the most accurate source for this information compared to other methods such as circuit simulations, which might not account for all real-world variables, or measurements that can introduce error if not done under controlled conditions.