PVA33.p65
Data Sheet No. PD10021E
Series PVA33
Microelectronic Power IC
BOSFET
Photovoltaic Relay
Single-Pole, 130mA, 0-300V AC/DC
General Description
The Photovoltaic AC Relay (PVA) is a single-pole,
normally open solid state replacement for electro-
mechanical relays used for general purpose switch-
ing of analog signals. It utilizes as an output switch a
unique bidirectional (AC or DC) MOSFET power IC
termed a BOSFET. The BOSFET is controlled by a
photovoltaic generator of novel construction, which
is energized by radiation from a dielectrically
isolated light emitting diode (LED).
The PVA overcomes the limitations of both conven-
tional and reed electromechanical relays by offering
the solid state advantages of long life, high operat-
ing speed, low pick-up power, bounce-free opera-
tion, low thermal voltages and miniaturization. These
advantages allow product improvement and design
innovations in many applications such as process
control, multiplexing, telecommunications, automatic
test equipment and data acquisition.
The PVA can switch analog signals from thermo-
couple level to 300 volts peak AC or DC polarity.
Signal frequencies into the RF range are easily
controlled and switching rates up to 5kHz are achiev-
able. The extremely small thermally generated offset
voltages allow increased measurement accuracies.
Unique silicon technology developed by International
Rectifier forms the heart of the PVA. The monolithic
BOSFET contains a bidirectional N-channel power
MOSFET output structure. In addition, this power IC
chip has input circuitry for fast turn-off and gate pro-
tection functions. This section of the BOSFET chip
utilizes both bipolar and MOS technology to form
NPN transistors, P-channel MOSFETs, resistors,
diodes and capacitors.
The photovoltaic generator similarly utilizes a unique
International Rectifier alloyed multijunction structure.
The excellent current conversion efficiency of this
technique results in the very fast response of the
PVA microelectronic power IC relay.
This advanced semiconductor technology has
created a radically new control device. Designers can
now develop switching systems to new standards of
electrical performance and mechanical compactness.
Features
BOSFET Power IC
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s
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s
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10
10
Operations
s
s
s
s
s
100sec Operating Time
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s
s
s
s
0.2Volt Thermal Offset
s
s
s
s
s
3 milliwatts Pick-Up Power
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s
s
s
s
1000V/sec dv/dt
s
s
s
s
s
Bounce-Free
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s
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s
8-pin DIP Package
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s
s
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-40C to 85C
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s
UL recognized
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Part Identification
Part Number
Operating
Sensitivity
Off-State
Voltage (AC/DC)
Resistance
PVA2352
0 - 200V
5mA
10
8
Ohms
PVA3324
0 300V
2 mA
10
10
Ohms
PVA3354
5mA
(BOSFET is a trademark of International Rectifier)
Series PVA33
2
INPUT CHARACTERISTICS
PVA2352 PVA3324 PVA3354
Units
Minimum Control Current
(see figures 1 and 2)
DC
For 20mA Continuous Load Current
2.0
1.0
2.0
mA@25C
For 100mA Continuous Load Current
5.0
2.0
5.0
mA@25C
For 10mA Continuous Load Current
5.0
2.0
5.0
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
)
GENERAL CHARACTERISTICS (PVA2352, PVA3324 and PVA3354)
Units
Dielectric Strength: Input-Output
2500
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
OUTPUT CHARACTERISTICS
PVA2352 PVA3324 PVA3354
Units
Operating Voltage Range
0 to 200
0 to 300
V
(PEAK)
Maxiumum Load Current 40C (see figures 1and 2)
130
mA
(DC)
Max. On-state Resistance 25C
(Pulsed) (fig. 4) 50 mA Load, 5mA Control
24
Min. Off-state Resistance @ 25C (see figure 5)
10
8
@160VDC
10
10
@ 240VDC
Response Time @25C (see figures 7 and 8)
Max. T(on) @ 12mA Control, 50 mA Load, 100 VDC
100
s
Max. T(off) @ 12mA Control, 50 mA Load, 50 VDC
50
s
Max. Thermal Offset Voltage @ 5.0mA Control
0.2
volts
Min. Off-State dv/dt
1000
V/s
Output Capacitance (see figure 10)
12
pF @ 50VDC
Series PVA33
3
Max. Load Current (mA)
R
DD(on)
(Ohms)
Ambient Temperature (C)
Ambient Temperature (C)
Max. Load Current (mA)
Ambient Temperature (C)
Voltage Drop (VDD)
Load Current (mA)
Figure 4. Typical On-Resistance
Figure 3.Typical On Characteristics
Figure 2. Current Derating Curves
Figure 1. Current Derating Curves
Series PVA33
4
I D
O
f
f/I
D
O
f
f 25C
Figure 5. Normalized Off-State Leakage
Figure 6. Input Characteristics
(Current Controlled)
Figure 7.Typical Delay Times
Figure 8. Delay Time Definitions
LED Forward Voltage Drop (Volts DC)
Input Current (mA)
Ambient Temperature (C)
I LED
(mA)
Delay Time (microseconds)
Series PVA33
5
Normalized T
ransfer Ratio
Wiring Diagram
T
ypical Capacitance (picofarads)
Figure 9. Typical Control Threshold and Transfer Ratio
Ambient Temperature C
VDD Drain to Drain Voltage
Figure 10. Typical Output Capacitance
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