about MAX V open drain output maximum voltage

Question

Hi,

Where can I find info about MAX V open drain output max. voltage value?

Can I drive directy LED ( 3,2V drop voltage at 10 mA) from MAX V open drain output if the LED Anode connected to the +5V power supplier via 150 Ohm resistor ( I assume the output transistor sauraion votage's 0,4V as datasheet says).?

During LED off state 5V will be applied to the output transistor drain. Is it OK?

BR

altera_forum · Answer

No. You can't connect an LED directly to the pin in this way. Refer to the 'max v datasheet (https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/hb/max-v/mv51003.pdf)'. Absolute max on a pin is 4.6V let alone the recommended operating conditions of 3.6V max.

Use an external transistor or FET if you want to operate at 5V.

Cheers,

Alex

altera_forum · Answer

Thanks for the info.

Forum Discussion

about MAX V open drain output maximum voltage

2 Replies

Recent Discussions

DO-254 Cyclone10LP / CycloneV

Cyclone 10 LP's Extended Industrial parts

Bidirectional pin USB_RX with a pseudo-differential I/O standard must use the OEIN port of the node

Obsolescence issues

Avalon-ST configuration with Agilex 3 fails