Datasheet

DataSheet
40W, Single Output
VER:00 Page 54 of 62 Issued Date：2009/03/02
Remote ON/OFF Control
The RemoteON/OFF Pinis used to turn on and off the DC-DC converter.The user mustuse a switch to control
thelogic voltage (highor low level) of the ON/OFF pin ,referenced to Vi (-). The switch canbe open collector
transistor, FET, or Opto-Coupler thatis capable of sinkingup to 0.5 mAat a low-levellogic Voltage. For High-level
logic of theON/OFF signal (maximum voltage): the allowable leakage current ofthe switch at 12V is 0.5 mA.
Remote ON/OFF Implementation Circuits
Isolated-Closure Remote ON/OFF Level Control UsingTTLOutput
Level Control Using Line Voltage
Positive logic:
When FEC40 module is turned off at
Low-level logic
When FEC40 module is turned on at
High-level logic