Datasheet

Data Sheet
Jul. 20, 2010
PXB15-xxWDxx
22
15W, Dual Output
Remote ON/OFF Control
The Remote ON/OFF Pin is used to turn the DC/DC power module on and off.The user must connect a switch
between the on/off pin and the Vi (-) pin. The switchcan be an open collector transistor, FET,orPhoto-Coupler.The
switch must be capable of sinkingupto 1 mA when using a lowlogic level voltage. When using a high logic level,
the maximum signal voltage is 15V and the maximum allowable leakage currentof the switch is 50 uA.
RemoteON/OFF ImplementationCircuits
Isolated-ClosureRemote ON/OFF Level Control UsingTTLOutput
Level Control Using Line Voltage
There are two remote control options available, positive logic and negative logic.
a. Positive logic - The DC/DC module is turned on when the ON/OFF pin is at ahighlogic level.Alow logic signal is
needed to turn off the device.
When PXB15W
module is turned offat
Low logic level
When PXB15W moduleis turned on
at High logic level
b. Negative logic–
The DC/DCmoduleisturned on whenthe ON/OFFpin is atlowlogic level.Ahighlogiclevel signal is
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