Datasheet
Data Sheet
Jul. 20, 2010
PXB15-xxWSxx
27
15W, Single Output
Remote ON/OFF Control
TheRemote ON/OFF Pin is used t o turn the DC/DC power module on and off.The usermust connect a switch
between the on/off pin and the Vi (-) pin. The switch can be anopen collector transistor, FET, or Photo-Coupler. The
switch must be capable ofsinking up to 1 mA when using a low logic level voltage. When using a high logic level,
the maximum signal voltage is 15V and the maximum allowable leakagecurrent ofthe switch is 50uA.
RemoteON/OFF ImplementationCircuits
Isolated-ClosureRemote ON/OFF Level Control UsingTTLOutput
Level Control Using Line Voltage
There are two remote controloptions available,positive logic and negative logic.
a. Positive logic - The DC/DC moduleis turned on when the ON/OFF pin is at a high logic level.Alow logic signal is
needed to turn off the device.
When PXB15W
module is turned off at
Low logic level
When PXB15W moduleis turned on
at High logic level
b. Negativelogic–
TheDC/DCmoduleisturned on when the ON/OFF pin is atlowlogiclevel.Ahighlogic levelsignalis
needed to turn off the device.
When PXB15W
module is turned on at
Low logic level
When PXB15W moduleis turned off
at High logic level