AC Line Monitor Logic-Out
Device
MID400
Description
The MID400 is an optically isolated AC line−to−logic interface
device. It is packaged in an 8−lead plastic DIP. 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.
The MID400 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.
www.onsemi.com
PDIP8 6.6x3.81, 2.54P
CASE 646BW
8
1
PDIP8 9.655x6.6, 2.54P
CASE 646CQ
8
1
Features
• Direct Operation from any Line Voltage with the Use of an External
•
•
•
•
Resistor
Externally Adjustable Time Delay
Externally Adjustable AC Voltage Sensing Level
Logic Level Compatibility
Safety and Regulatory Approvals:
♦ UL1577, 2,500 VACRMS for 1 Minute
♦ DIN−EN/IEC60747−5−5, 630 V Peak Working Insulation Voltage
Applications
• Monitoring of the AC/DC “Line−down” Condition
• “Closed−loop” Interface between Electromechanical Elements such
•
as Solenoids, Relay Contacts, Small Motors, and Microprocessors
Time Delay Isolation Switch
PDIP8 GW
CASE 709AC
8
1
MARKING DIAGRAM
ON
MID400
VXXYYT1
MID400 = Specific Device Code
V
= DIN EN/IEC60747−5−5 Option (only
appears on component ordered with
this option)
XX
= Two−Digit Year Code, e.g., “06”
YY
= Digit Work Week, Ranging from “01”
to “53”
T1
= Assembly Package Code
FUNCTIONAL SCHEMATIC
1
8 V CC
N/C 2
7 AUX
3
N/C 4
6 VO
5 GND
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of
this data sheet.
© Semiconductor Components Industries, LLC, 2005
April, 2021 − Rev. 2
1
Publication Order Number:
MID400/D
MID400
SAFETY AND INSULATION RATINGS (As per DIN EN/IEC 60747−5−5, this optocoupler is suitable for “safe electrical insulation”
only within the safety limit data. Compliance with the safety ratings shall be ensured by means of protective circuits.)
Parameter
Characteristics
Installation Classifications per DIN VDE 0110/1.89 Table 1, For Rated Mains Voltage
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