Data Sheet No. 1.040
PVAZ172N
Microelectronic
HEXFET POWER MOSFET PHOTOVOLTAIC RELAY
Power IC Relay
Single Pole, Normally Open
0-60V AC, 1.0A
®
General Description
The PVAZ172N Photovoltaic Relay is a single-
pole, normally open solid state relay that can
replace electromechanical relays used for gen-
eral purpose switching of DC and AC loads. It
utilizes International Rectifier’s HEXFET power
MOSFETs as the output switches, driven by an
integrated circuit photovoltaic generator of novel
construction. The output switch is controlled by
radiation from a GaAlAs light emitting diode
(LED) which is optically isolated from the
photovoltaic generator.
These units overcome the limitations of both
electromechanical and reed relays by offering
the solid-state advantages of high sensitivity,
miniaturization, no contact bounce, long opera-
tional life, insensitivity to external magnetic fields,
shock and vibration, and high reliability inherent
with solid state technology. They are ideally
suited for switching high currents or low level
signals without distortion or injection of electri-
cal noise.
These relays are packaged in 8-pin, molded
DIP packages and available with thru-hole and
SMT (gull-wing) leads, in plastic shipping tubes.
PVAZ172N Features
500mΩ On-Resistance
s
Bounce-free Operation
s
1.0 Amp capacity
s
4000 V
RMS
I/O isolation
s
Solid-State reliability
s
UL recognition and CSA certification pending
s
Applications
Portable Electronics
s
Programmable Logic Controllers
s
Computers and Peripheral Devices
s
Audio Equipment
s
Power Supplies and Power Distribution
s
Instrumentation
s
Part Identification
PVAZ172N
PVAZ172NS
thru-hole
SMT (gull-wing)
(HEXFET is the registered trademark for International Rectifier Power MOSFETs)
I
NTERNATIONAL
R
ECTIFIER
PVAZ172N Photovoltaic Relay
Electrical Specifications
(-40°C
≤
T
A
≤
=+85°C unless otherwise specified)
INPUT CHARACTERISTICS
Min. Control Current (see Figures 1 and 2)
Max. Control Current for Off-State Resistance @ T
A
=+25°C
Control Current Range (Caution: Current limit input LED, see Fig.6)
Max. Reverse Voltage
Limits
10
0.4
5.0 to 25
7.0
Units
mA
mA
mA
V
OUTPUT CHARACTERISTICS
Operating Voltage Range
Max. Load Current 40
°
C (See Fig. 1 and 2)
Max. Pulsed Load Current @T
A
=+25°C (100 ms @ 10% duty Cycle)
Max. Turn-On Time @T
A
=+25°C (see Fig. 7)
For 500mA, 50VDC Load, 10mA Control
Max. Turn-Off Time @TA=+25°C (see Fig. 7)
For 500mA, 50VDC Load, 10mA Control
Max. On State Resistance @TA=+25°C(pulsed) (See Fig. 4)
1.0A Load, 10mA Control
Min. Off State Resistance @T
A
=+25°C @ 48 VDC (see Fig. 5)
Min. Off-State dv/dt
Output Capacitance (See Fig. 9)
10
8
1000
150
Ohms
V/µs
pF @ 50 VDC
500
mΩ
0.5
ms
0 to 60
1.0
2.4
2.0
V(AC peak)
A(DC)
A(AC peak)
ms
GENERAL CHARACTERISTICS
Dielectric Strength, Input-Output
Insulation Resistance, Input-Output , 90 V
DC
Capacitance, Input-Output
Lead Temperature (1.6mm below seating plane) for 10 sec.
Ambient Temperature Range:
Operating
Storage
Limits
4000
10
12
@T
A
=+25°C - 50% RH
1.0
+260
-40 to +85
-40 to +100
Units
V
(RMS)
Ω
pF
°C
°C
°C
Wiring Diagrams:
Anode
2
+
8
2
Drain
8
+
Cathode
3
5
Drain
3
5
Schematic
Electromechanical
Analogy
(HEXFET is the registered trademark for International Rectifier Power MOSFETs)
I
NTERNATIONAL
R
ECTIFIER
PVAZ172N PhotoVoltaic Relay
1.2
ILED = 10mA
1.25
1.0
1.00
+25 deg. C
0.8
ILED = 5mA (Typical)
0.75
0.6
0.50
0.4
+60 deg. C
0.2
0.25
+40 deg. C
0
0
0
20
40
60
80
100
+85 deg. C
1
2
3
4
5
Ambient Temperature (deg. C)
LED Control Current (mA)
Figure 1. Current Derating Curves
1.2
+40 deg. C
+60 deg. C
500
Figure 2. Typical Control Current
Requirements
1.0
+85 deg. C
400
0.8
+25 deg. C
300
0.6
200
0.4
ILED = 10mA
0.2
100
0
0
0.1
0.2
0.3
0.4
0.5
0
-40
-20
0
20
40
60
80
100
Vds (V)
Ambient Temperature (deg. C)
Figure 3. Typical On-Characteristics
100
20
30
Figure 4. Typical On-Resistance
Id-off/Id-off 25 deg. C
CAUTION: provide current limiting
so that 25 mA maximum s teady-
state control current rating is
not exceeded
16
deg. C limit
Input Current (mA)
10
12
Min. devi ce and +8
5
8
1.0
0.3
4
0.1
-35
0
-15
5
25
45
65
85
105
0
0.5
1.0
1.5
2.0
Ambient Temperature (deg. C)
LED Forward Voltage Drop (Volts DC)
Figure 5. Typical Normalized Off-State Leakage
Figure 6. Input Characteristics
(Current Controlled)
Max . device
and
3.0
TYPICAL
-40 deg. C lim
it
I
NTERNATIONAL
R
ECTIFIER
PVAZ172N PhotoVoltaic Relay
20
Mechanical Specifications
(Dimensions in millimeters (inches)
10
t on
5
t off
t dly
Dimensions:
mm (Inches)
Package Size:
8 Pin DIP
Tolerances:
.015 (.38)
unless otherwise specified
Case Material:
Molded epoxy
Weight:
.07 oz. (2 grams)
3
20
50
100
200
500
1000
2000
Delay T
ime (microseconds)
Figure 7. Typical Delay Times
I
LE D
90 %
I
D
10 %
t
dly
t
on
t
of f
Figure 8. Delay Time Definitions
600
450
300
150
0
0
10
20
30
40
50
Vds, Drain to Source V
oltage (V)
Figure 9. Typical Output Capacitance
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Data and specifications subject to change without notice.4/96
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