MID400 — AC Line Monitor Logic-Out Device
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4
April 2010
MID400
AC Line Monitor Logic-Out Device
Features
■
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
■
Compact plastic DIP package
■
Logic level compatibility
■
UL recognized (File #E90700)
■
VDE recognized (file #102915), – add option V
(e.g., MID400V)
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
Description
The MID400 is an optically isolated AC line-to-logic inter-
face 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 iso-
lation, solid state reliability, TTL compatibility, small size,
low power, and low frequency operations are required.
Schematic Package Outlines
8
1
8
1
8
1
1
2
3
4 5
6
7
8
VCC
AUX
V0
GND
Equivalent Circuit
N/C
N/C
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 2
MID400 — AC Line Monitor Logic-Out Device
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol Parameter Value Unit
TOTAL DEVICE
T
STG
Storage Temperature -55 to +125 °C
T
OPR
Operating Temperature -40 to +85 °C
T
SOL
Lead Solder Temperature 260 for 10 sec °C
P
D
Total Device Power Dissipation @ T
A
= 25°C 115 mW
Derate above 70°C 4.0 mW/°C
Steady State Isolation 2500 VRMS
EMITTER
RMS Current 25 mA
DC Current ±30 mA
P
D
LED Power Dissipation @ T
A
= 25°C 45 mW
Derate above 70°C 2.0 mW/°C
DETECTOR
I
OL
Low Level Output Current 20 mA
V
OH
High Level Output Voltage 7.0 V
V
CC
Supply Voltage 7.0 V
P
D
Detector Power Dissipation @ T
A
= 25°C 70 mW
Derate above 70°C 2.0 mW/°C
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 3
MID400 — AC Line Monitor Logic-Out Device
Electrical Characteristics
(0°C to 70°C Free Air Temperature unless otherwise specified-All typical values are at 25°C)
Individual Component Characteristics
Transfer Characteristics
Transfer Characteristics
(RMS = True RMS Voltage at 60 Hz, THD
≤
1%)
Isolation Characteristics
(T
A
= 25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
EMITTER
V
F
Input Forward Voltage I
F
= ±30 mA, DC 1.5 V
DETECTOR
I
CCL
Logic Low Output Supply
Current
I
IN
= 4.0 mA RMS,
V
O
= Open, V
CC
= 5.5V, 24V V
I (ON)
,
RMS
≤
240V
3.0 mA
I
CCH
Logic High Output
Supply Current
I
IN
= 0.15mA RMS, V
CC
= 5.5V,
V
I (OFF)
, RMS
≥
5.5V
0.80 mA
Symbol DC Characteristics Test Conditions Min. Typ. Max. Units
V
OL
Logic Low Output
Current
I
IN
= I
I (ON)
RMS, I
O
= 16mA, V
CC
= 4.5V,
24V
≤
V
I (ON)
, RMS
≤
240V
0.18 0.40 V
I
OH
Logic High Output
Current
I
IN
= 0.15mA RMS, V
O
= V
CC
= 5.5V,
V
I (OFF)
, RMS
≥
5.5V
0.02 100 µA
V
I (ON)
RMS On-state RMS Input
Voltage
V
O
= 0.4V, I
O
= 16mA, V
CC
= 4.5V,
R
IN
= 22k
Ω
90 V
V
I (OFF)
RMS Off-state RMS Input
Voltage
V
O
= V
CC
= 5.5 V, I
O
≤
100µA,
R
IN
= 22k
Ω
5.5 V
I
I (ON)
RMS On-state RMS
Input Current
V
O
= 0.4V, I
O
= 16mA, V
CC
= 4.5V,
24V
≤
V
I (ON)
, RMS
≤
240V
4.0 mA
I
I (OFF)
RMS Off-state RMS Input
Current
V
O
= V
CC
= 5.5V, I
O
≤
100µA, V
I (OFF)
,
RMS
≥
5.5V
0.15 mA
Symbol Characteristics Test Conditions Min. Typ. Max. Units
SWITCHING TIME
(T
A
= 25°C)
t
ON
Tu r n-On Time I
IN
= 4.0mA RMS, I
O
= 16mA,
V
CC
= 4.5V, R
IN
= 22k
Ω
(See Test Circuit 2)
1.0 ms
t
OFF
Tu r n-Off Time I
IN
= 4.0mA RMS, I
O
= 16mA,
V
CC
= 4.5V, R
IN
= 22k
Ω
(See Test Circuit 2)
1.0 ms
Symbol Characteristics Test Conditions Min. Typ. Max. Units
V
ISO
Steady State Isolation
Voltage
Relative Humidity
≤
50%,
I
I-O
≤
10µA, 1 Minute, 60Hz
2500 VRMS
R
ISO
Isolation Resistance V
I-O
= 500VDC 10
11
Ω
C
ISO
Isolation Capacitance f = 1MHz 2 pF
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 4
MID400 — AC Line Monitor Logic-Out Device
Description/Applications
The input of the MID400 consists of two back-to-back
LED diodes which will accept and convert alternating
currents into light energy. An integrated photo diode-
detector amplifier forms the output network. Optical cou-
pling between input and output provides 2500 VRMS
voltage isolation. A very high current transfer ratio
(defined as the ratio of the DC output current and the DC
input current) is achieved through the use of high gain
amplifier. The detector amplifier circuitry operates from a
5V DC supply and drives an open collector transistor
output. The switching times are intentionally designed to
be slow in order to enable the MID400, when used as an
AC line monitor, to respond only to changes in input volt-
age exceeding many milliseconds. The short period of
time during zero-crossing which occurs once every half
cycle of the power line is completely ignored. To operate
the MID400, always add a resistor, R
IN
, in series with the
input (as shown in test circuit 1) to limit the current to the
required value. The value of the resistor can be deter-
mined by the following equation:
Where,
V
IN
(RMS) is the input voltage.
V
F is the forward voltage drop across the LED.
IIN (RMS) is the desired input current required to sustain a logic
“O” on the output.
Pin Description
Schematic Diagram
Glossary
VOLTAGES
VI (ON) RMS On-State RMS Input Voltage
The RMS voltage at an input terminal for a
specified input current with output condi-
tions applied that according to the product
specification will cause the output switch-
ing element to be sustained in the on-state
within one full cycle.
VI (OFF) RMS Off-State RMS Input Voltage
The RMS voltage at an input terminal for a
specified input current with output condi-
tions applied that according to the product
specification will cause the output switch-
ing element to be sustained in the off-state
within one full cycle.
VOL Low-Level Output Voltage
The voltage at an output terminal for a spe-
cific output current IOL, with input condi-
tions applied that according to the product
specification will establish a low-level at
the output.
VOH High-Level Output Voltage
The voltage at an output terminal for a spe-
cific output current IOH, with input condi-
tions applied that according to the product
specification will establish a high-level at
the output.
VFLED Forward Voltage
The voltage developed across the LED
when input current IF is applied to the
anode of the LED.
CURRENTS
II (ON) RMS On-State RMS Input Current
The RMS current flowing into an input with
output conditions applied that according to
the product specification will cause the
output switching element to be sustained
in the on-state within one full cycle.
II (OFF) RMS Off-state RMS Input Current
The RMS current flowing into an input with
output conditions applied that according to
the product specification will cause the
output switching element to be sustained
in the off-state within one full cycle.
IOH High-Level Output Current
The current flowing into * an output with
input conditions applied that according to
the product specification will establish a
high-level at the output.
*Current flowing out of a terminal is a negative value.
Pin
Number
Pin
Name Function
1, 3 VIN1, VIN2 Input terminals
2, 4 N/C No Connect
8V
CC Supply voltage, output circuit.
7AUX Auxiliary terminal.
Programmable capacitor input
to adjust AC voltage sensing
level and time delay.
6V
OOutput terminal; open collector.
5 GND Circuit ground potential.
RIN
VIN VF
–
IIN
-----------------------
=
45
1
VIN1
N/C
N/C
VIN2
VCC
AUX.
GND
VO
2
3
8
7
6
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 5
MID400 — AC Line Monitor Logic-Out Device
IOL Low-Level Output Current
The current flowing into * an output with
input conditions applied that according to
the product specification will establish a
low-level at the output.
ICCL Supply Current, Output LOW
The current flowing into * the VCC supply
terminal of a circuit when the output is at a
low-level voltage.
ICCH Supply Current, Output HIGH
The current flowing into * the VCC supply
terminal of a circuit when the output is at a
high-level voltage.
* Current flowing out of a terminal is a negative value.
DYNAMIC CHARACTERISTICS
tON Turn-On Time
The time between the specified reference
points on the input and the output voltage
waveforms with the output changing from
the defined high-level to the defined low-
level.
tOFF Turn-Off time
The time between the specified reference
points on the input and the output voltage
waveforms with the output changing from
the defined low-level to the defined high-
level.
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 6
MID400 — AC Line Monitor Logic-Out Device
Operating Schematics
45
1
1
2
3
4
8
7
6
5
2
3
8
7
6
RIN = 22kΩ
22kΩ
RIN
RL300Ω
RL = 300Ω
VCC
tOFF tON
OUTPUT
OUTPUT
TEST CIRCUIT
* INPUT TURNS ON AND OFF AT ZERO CROSSING
INPUT CURRENT VS. CAPACITANCE, CAUX CIRCUIT
TEST CIRCUIT 2
MID400 Switching Time
TEST CIRCUIT 1
50% 50%
A-C
INPUT
A-C
INPUT
VOH
VOL
OV
VIN
AC INPUT
VO
CAUX
1 INPUT VCC
+4.5V
VCC
AUX.
VOUT
GND
N/C
2 INPUT
N/C
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 7
MID400 — AC Line Monitor Logic-Out Device
Typical Performance Curves
100
00
0
0.4
0
0.05
0.10
0.15
0.20
0.30
0.8
1.2
1.6
2.0
2.4
2.8
5
10
15
20
25
30
50
80
90
100
110
120
100
150
200
250
20 30 40 50 60
TA = 25°C
VCC = 5.0V
IOL = 16mA
IOH ≤ µA
ICCL
II (ON)
II (OFF)
ICCH
II (ON) = 4.0 mA, (RMS)
4.5 V
5.0 V
TURN ON
TURN OFF
INPUT RESITANCE, RIN (kV) INPUT RESITANCE, RIN (kΩ)
Fig. 1 Input Voltage vs. Input Resistance
Fig. 3 Supply Current vs. Supply Voltage
Fig. 5 Output Voltage vs. Output Current
Fig. 4 Input Current vs. Capacitance
Fig. 2 Input Voltage vs. Input Resistance
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 10 20 50 100
VCC – SUPPLY VOLTAGE (V)
0 5.0 10.0 15.0 20.0 25.0
IOL – OUTPUT CURRENT (mA)
CAPACITANCE (pF) (AUX. TO GND)
1002030405060
AC INPUT VOLTAGE (RMS)ICC – NORMALIZED (%)
VOL – OUTPUT VOLTAGE (V)
AC INPUT VOLTAGE (RMS)
INPUT CURRENT (mA) RMS
200 500 1000
VCC = 5.0V
IOL = 16mA
IOH ≤ µA
RIN = 22kΩ
TA = 25°C
TA = 25°C
VCC = 5.0V
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 8
MID400 — AC Line Monitor Logic-Out Device
Package Dimensions
Through Hole
Surface Mount
Note:
All dimensions are in inches (millimeters)
0.4" Lead Spacing
8-Pin DIP – Land Pattern
0.200 (5.08)
0.140 (3.55)
0.100 (2.54) TYP
0.022 (0.56)
0.016 (0.41)
0.020 (0.51) MIN
0.390 (9.91)
0.370 (9.40)
0.270 (6.86)
0.250 (6.35)
3
0.070 (1.78)
0.045 (1.14)
241
56 78
0.300 (7.62)
TYP
0.154 (3.90)
0.120 (3.05)
0.016 (0.40)
0.008 (0.20)
15° MAX
PIN 1
ID.
SEATING PLANE
Lead Coplanarity : 0.004 (0.10) MAX
0.270 (6.86)
0.250 (6.35)
0.390 (9.91)
0.370 (9.40)
0.022 (0.56)
0.016 (0.41)
0.100 (2.54)
TYP
0.020 (0.51)
MIN
0.070 (1.78)
0.045 (1.14)
0.300 (7.62)
TYP
0.405 (10.30)
MAX.
0.315 (8.00)
MIN
0.045 (1.14)
32 14
5678
0.016 (0.41)
0.008 (0.20)
PIN 1
ID.
0.200 (5.08)
0.140 (3.55)
0.100 (2.54) TYP
0.022 (0.56)
0.016 (0.41)
0.004 (0.10) MIN
0.390 (9.91)
0.370 (9.40)
0.270 (6.86)
0.250 (6.35)
3
0.070 (1.78)
0.045 (1.14)
241
56 78
0.400 (10.16)
TYP
0.154 (3.90)
0.120 (3.05)
0.016 (0.40)
0.008 (0.20)
0° to 15°
PIN 1
ID.
SEATING PLANE
0.070 (1.78)
0.060 (1.52)
0.030 (0.76)
0.100 (2.54)
0.295 (7.49)
0.415 (10.54)
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 9
MID400 — AC Line Monitor Logic-Out Device
Ordering Information
Marking Information
Option Example Part Number Description
No Option MID400 Standard Through Hole
S MID400S Surface Mount Lead Bend
SD MID400SD Surface Mount; Tape and reel
V MID400V VDE0884
WV MID400WV VDE0884; 0.4” Lead Spacing
SV MID400SV VDE0884; Surface Mount
SDV MID400SDV VDE0884; Surface Mount; Tape and Reel
1
2
6
43 5
Definitions
1Fairchild logo
2Device number
3VDE mark (Note: Only appears on parts ordered with VDE
option – See order entry table)
4Two digit year code, e.g., ‘03’
5Two digit work week ranging from ‘01’ to ‘53’
6 Assembly package code
MID400
VXXYYT1
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 10
MID400 — AC Line Monitor Logic-Out Device
Carrier Tape Specifications (“D” Taping Orientation)
Reflow Profile
Carrie
Note:
All dimensions are in inches (millimeters)
4.0 ± 0.1
Ø1.55 ± 0.05
User Direction of Feed
4.0 ± 0.1
1.75 ± 0.10
7.5 ± 0.1
16.0 ± 0.3
12.0 ± 0.1
0.30 ± 0.05
13.2 ± 0.2
4.90 ± 0.20
0.1 MAX 10.30 ± 0.20
10.30 ± 0.20
Ø1.6 ± 0.1
215°C, 10–30 s
225 C peak
Time (Minute)
0
300
250
200
150
100
50
00.5 1 1.5 2 2.5 3 3.5 4 4.5
Temperature (°C)
Time above 183° C, 60–150 sec
Ramp up = 3 C/sec
• Peak reflow temperature: 225° C (package surface temperature)
• Time of temperature higher than 183° C for 60–150 seconds
• One time soldering reflow is recommended
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MID400 Rev. 1.0.4 11
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Rev. I47
MID400 — AC Line Monitor Logic-Out Device
