Datasheet
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 6
MID400 — AC Line Monitor Logic-Out Device
Operating Schematics
4
5
1
1
2
3
4
8
7
6
5
2
3
8
7
6
R
IN
= 22kΩ
22kΩ
R
IN
R
L
300Ω
R
L
= 300Ω
V
CC
t
OFF
t
ON
OUTPUT
OUTPUT
TEST CIRCUIT
* INPUT TURNS ON AND OFF AT ZERO CROSSING
INPUT CURRENT VS. CAPACITANCE, C
AUX
CIRCUIT
TEST CIRCUIT 2
MID400 Switching Time
TEST CIRCUIT 1
50% 50%
A-C
INPUT
A-C
INPUT
V
OH
V
OL
OV
V
IN
AC INPUT
V
O
C
AUX
1 INPUT V
CC
+4.5V
V
CC
AUX.
V
OUT
GND
N/C
2 INPUT
N/C