MID400S Datasheet PDF - Fairchild

●The MID400S is a 1-channel 8-pin AC line monitor Logic Optocoupler for time delay isolation switch. The MID400 is an optically isolated AC line-to-logic interface device. The AC line voltage is monitored by two back-to-back GaAs LED diodes in series with an external resistor. A high gain detector circuit senses the LED current and drives the output gate to a logic low condition. It has been designed solely for the use as an AC line monitor. It is recommended for use in any AC-to-DC control application where excellent optical isolation, solid state reliability, TTL compatibility, small size, low power and low frequency operations are required.

● Direct operation from any line voltage with the use of an external resistor

● Externally adjustable time delay

● Externally adjustable AC voltage sensing level

● High voltage isolation between input and output

● Logic level compatibility

● 115mW Total device power dissipation at TA=25°C