Datasheet

DataSheet
40W, Dual Output
VER:00 Page 19 of 22 Issued Date：2009/03/02
Remote ON/OFF Control
The Remote ON/OFF Pin is used to turn the converteron and off.The usermust use a switch to control the logic
voltage (high or low level) of the pin referenced to Vi (-).The switch can be an opencollector transistor, FET or
Opto-Coupler.The switch must be capable of sinking up to 0.5 mAat low-level logic voltage. Using High-
level logic,the
maximum allowable leakagecurrent ofthe switch at 12V is 0.5 mA.
Remote ON/OFFImplementationCircuits
Isolated-Closure RemoteON/OFF Level ControlUsingTTLOutput
Level ControlUsingLineVoltage
There are tworemote controloptions available, positive logicand negative logic.
a. Positive logic:
Module is turned off using Low-level
logic
Module is turned on usingHigh-level
logic
b. Negative logic:
Module is turned on usingLow-level
logic
Module is turned off using High-level
logic