Shut-down input

This feature allows a switch-off of the output of the power supply with a signal switch or an external voltage. The shut-down occurs immediately while the turn-on is delayed up to 350ms. In a shut-down condition, the output voltage is <2V and the output power is <0.5W.

The voltage between different minus pole output terminals must be below 1V when units are connected in parallel. In a series operation of multiple power supplies only wiring option “A” with individual signal switches is allowed.

Please note:

• Option C requires a current sink capability of the voltage source. Do not use a blocking diode.
• The shut-down function has no safety feature included.
• Please be aware, that shutting-down the device very often could result in reduction of product lifetime. We recommend staying below 50 shut-down cycles per day.