General Description
The PVA30 Series AC Relay (PVA) is a single-pole, normally
open, solid-state replacement for electromechanical relays
used for general purpose switching of analog signals. 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.
The PVA30 Series combines very low solid-state output
capacitance, very high off-state resistance and very fast
response times. These Photovoltaic Relays are designed
specifically to accurately switch low-level signals in high-
performance instrumentation systems.
The PVA30 Series overcomes the limitations of both
conventional electromechanical and reed relays by offering
the solid state advantages of long life, fast operating speed,
low pick up power, bounce-free operation, low thermal offset
voltages and miniature package. These advantages allow
product improvement and design innovations in many
applications such as process control, multiplexing, automatic
test equipment and data acquisition.
The PVA30 can switch analog signals from thermocouple
level to 300 Volts peak AC or DC polarity. Signal frequencies
into the RF range are easily controlled and switching rates
up to 1.7kHz are achievable. The extremely small thermally
generated offset voltages allow increased measurement
accuracies.
These relays are packaged in 8-pin, molded DIP packages
and available with either thru-hole or surface-mount ("gull-
wing") leads, in plastic shipping tubes.
Applications
Process Control
Data Acquisition
Test Equipment
Multiplexing and Scanning
Features
Bounce-Free Operation
10
11
Off-State Resistance
1,000 V/
sec dv/dt
0.2
V Thermal Offset
5 mA Input Sensitivity
4,000 V
RMS
I/O Isolation
Solid-State Reliability
UL Recognized
ESD Tolerance:
4000V Human Body Model
500V Machine Model
Data Sheet No. PD10050-D
Series PVA30N
Microelectronic Power IC
HEXFET
Power MOSFET Photovoltaic Relay
Single-Pole, Normally-Open
0-300V AC/DC, 50mA
Part Identification
PVA3054N
PVA3055N
thru-hole
PVA3054NS
PVA3055NS
surface-mount (gull-wing)
(HEXFET is the registered trademark for International Rectifier Power MOSFETs)
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1
Series PVA30N
2
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INPUT CHARACTERISTICS
PVA3054N
PVA3055N
Units
Minimum Control Current
(see figure 1)
DC
For 55mA Continuous Load Current
2
mA@25C
For 50mA Continuous Load Current
5
mA@40C
For 35mA Continuous Load Current
5
mA@85C
Maximum Control Current for Off-State Resistance at 25C
10
A(DC)
Control Current Range (Caution: current limit input LED. See figure 6)
2.0 to 25
mA(DC)
Maximum Reverse Voltage
7.0
V(DC)
Electrical Specifications (-40
C
T
A
+85
C unless otherwise specified
)
OUTPUT CHARACTERISTICS
PVA3054N
PVA3055N
Units
Operating Voltage Range
0 to 300
V
(PEAK)
Maxiumum Load Current 40C I LED 5mA
50
mA
(DC)
Response Time @25C (see figures 6 and 7)
Maximum T(on) @ 12mA Control, 20 mA Load, 100 VDC
60
s
Maximum T(off) @ 12mA Control, 20 mA Load, 100 VDC
100
s
Max. On-state Resistance 25C
(Pulsed) (fig. 3) 10 mA Load, 5mA Control
160
Minimum Off-state Resistance 25C @ 240 VDC
10
10
10
11
Maximum Off-state Leakage 25C @ 5.0 VDC (see figure 4)
--
0.05
nA
Maximum Thermal Offset Voltage @ 5.0mA Control V
O(OS)
0.2
volts
Minimum Off-State dv/dt
1000
V/s
Typical Output Capacitance (see figure 8)
2.2
pF @ 40V
GENERAL CHARACTERISTICS (PVA3054N and PVA3055N)
Units
Dielectric Strength: Input-Output
4000
V
RMS
Insulation Resistance: Input-Output @ 90V
DC
10
12
@ 25C - 50% RH
Maximum Capacitance: Input-Output
1.0
pF
Max. Pin Soldering Temperature
(1.6mm below seating plane, 10 seconds max.)
+260
Ambient Temperature Range:
Operating
-40 to +85
C
Storage
-40 to +100
International Rectifier does not recommend the use of this product in aerospace, avionics, military or life support applications.
Users of this International Rectifier product in such applications assume all risks of such use and indemnify International
Rectifier against all damages resulting from such use.
Series PVA30N
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3
Max. Load Current (mA)
Figure 1. Current Derating Curves
Ambient Temperature (C)
0
10
20
30
40
50
60
70
80
0
20
40
60
80
100
I
LED
> 5mA
I
LED
=2mA
Figure 2.Typical On Characteristics
-50
-40
-30
-20
-10
0
10
20
30
40
50
-4
-3
-2
-1
0
1
2
3
Load Current (mA)
Voltage Drop (V
DD
)
Figure 3. Typical On-Resistance
R
DD(on)
(Ohms)
Temperature (C) Forced Air
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
-40
-20
0
20
40
60
80
100
120
Figure 4. Typical Normalized Off-State Leakage
Ambient Temperature (
o
C)
Series PVA30N
4
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Figure 8. Typical Output Capacitance
T
ypical Capacitance (pF)
VDD Drain to Drain Voltage
0
2
4
6
8
10
12
0
10
20
30
40
Figure 5. Input Characteristics
(Current Controlled)
LED Forward Voltage Drop (Volts DC)
Input Current (mA)
Figure 6.Typical Delay Times
Delay Time (
S)
I LED (mA)
Figure 7. Delay Time Definitions
1
10
100
1000
0
5
10
15
20
Ton
Tdly
Toff
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