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Part Number: MAX232
I have an old circuit in production on the while is mounted a RS232 driver with capacitors 10uF tantalium. Now I'd like change the IC driver with MAX232 but the pump capacitor is 1uF. Is not possible change the IC without change the capacitors?
Does someone suggest me?
Using larger flying capacitors will result in a larger ripple noise at the charge pumps output as the device will take longer to switch (longer charge times). Though 1uF would be optimal, the device should still be able to function with 10uF capacitors connected. I would recommended testing this configuration with the rest of your system to ensure the added noise does not effect communications.
Also, please ensure the polarized capacitors are facing the correct direction in your layout:
Let me know if you have any more questions.
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