Datasheet

Series KA/LA
2.0 to 7.5A, 250 Vrms Optically Isolated
AC Solid-State Relay
Part Number* Relay Description
KA00HF
KA58HF
2 A, 250 Vrms, AC Solid-State Relay
2 A, 250 Vrms, AC Solid-State Relay with Thermal
Protection and Thermal TRIP Status
LA00HL
7.5 A, 250 Vrms, AC Solid-State Relay
LA58HL
7.5 A, 250 Vrms, AC Solid-State Relay with Thermal
Protection and Thermal TRIP Status
* The Y suffix denotes parameters tested to MIL-PRF-28750 test methods.
The W suffix denotes parameters tested to Teledyne specifications.
ELECTRICAL SPECIFICATIONS
(-55°C TO +110°C UNLESS OTHERWISE SPECIFIED)
INPUT (CONTROL) CHARACTERISTICS
2 Terminal Configuration (See Fig. 1)
Min
Max
Units
Input Voltage (See note 2)
3.8
32
Vdc
15
mA dc
1.5
Vdc
Input Current (See Figure 1)
VIN = 5 Vdc
Turn-Off Voltage (Guaranteed Off)
Turn-On Voltage (Guaranteed On)
3.8
Reverse Voltage Protection
Vdc
-32
Vdc
INPUT (CONTROL) CHARACTERISTICS
3 Terminal Configuration (See Fig. 1)
Min
Max
Units
Bias Voltage (See note 2)
3.8
32
Vdc
16
mA
18
Vdc
Control Current (at 5 Vdc)
250
µAdc
Turn-On Control Voltage
0.3
Vdc
Bias Current (VIN=32 Vdc)
Control Voltage Range
0
Turn-Off Control Voltage
3.2
Vdc
OUTPUT (LOAD) SPECIFICATIONS
Min
Max
Units
Load Voltage
20
250
Vrms
Frequency Range
40
440
Hz
Continuous Load Current (See Figure 3)
KA and LA without Heat Sink
LA with Heat Sink
2.0
7.5
Arms
Arms
Output Voltatge Drop
1.2
Vrms
KA/LA 78
FEATURES/BENEFITS
• Available with thermal protection
and thermal TRIP status: Provides
self-protection from thermal
runaway conditions and indicates
protection state for system BIT.
• Optical Isolation: Isolates control
elements from load transients with
reduced EMI.
• Fully Floating Output: Eliminates
ground potential loops and allows
the output to sink or source current.
• Buffered Control: Relay can be
controlled directly from TTL or
CMOS logic circuits.
• Integral Snubber Circuit: Enhances
dV/dt capability while minimizing
EMI.
DESCRIPTION
The Series KA/LA solid-state relays
(SSRs) is designed for use in AC
power switching applications where
safety and reliability are primary
concerns. These SSRs are rated for
load voltages up to 250 Vrms from 40
to 440 Hz and are ideal for resistive
and reactive loads with power factors
as low as 0.2. Inverse parallel SCRs
are configured for zero voltage turn on.
Optical isolation to 1250 Vrms between
the control (input) and load (output)
allows the load to be safely controlled
by logic circuitry. The KA/LA series is
available with thermal protection and
thermal TRIP status. In case of a
thermal runaway condition, the SSR
will shut down the output switch and
latch off until the input is reset and the
junction temperature returns to a safe
level. When the output does latch off,
the TRIP status line will yield a logic
level output indicating the protection
state of the SSR. This feature provides
the user with failure mode indication
while enhancing the system diagnostic
capability. These SSRs are available to
the Y screening level of MIL-PRF28750 and are packaged in low-profile
hermetically sealed cases.
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2002 TELEDYNE RELAYS
KA/LA\072002\Q1
Series KA/LA
BLOCK DIAGRAM
OUTPUT (LOAD) SPECIFICATIONS
Min
Max
Units
10
mA
Turn-On Time
1/2
Cycle
Turn-Off Time
1
Cycle
Transient Voltage (5 sec, 25°C)
+500
V pk
Zero Voltage Turn-On Point
+15
V pk
Off-State Leakage Current
(250 Vac, 400 Hz)
dv/dt
100
Surge Current
V/µs
MIL-PRF-28750
Load Power Factor
0.2
Insulation Resistance @ 500 Vdc
109
Ohm
Input to Output Capacitance
15
Dielectric Withstanding Voltage (60Hz)
1250
MECHANICAL SPECIFICATIONS
pF
Vrms
o
Junction Temperature at Rated Current (TJ Max)
125
C
Thermal Resistance Junction to Ambient (θJA)
30
o
Thermal Resistance Junction to Case (θJC)
5
o
C/W
C/W
STATUS OUTPUT TRUTH TABLE
Status
Control
Output
Output State
Input
(Load) State
Off (High)
Low
On
On (Low)
Low
Tripped (Off)
Off (High)
High
Off
On (Low)
High
Non-applicable condition
STATUS OUTPUT SPECIFICATIONS
Min
Max
Units
Status Supply Voltage
32
Vdc
Status “OFF” Leakage Current @ 32 Vdc
10
µAdc
Status Sink Current (Vso ≤ 0.4 Vdc)
10
mAdc
Status “ON” State Voltage @10mAdc
0.4
Vdc
© 2002 TELEDYNE RELAYS
DIMENSIONS ARE SHOWN IN INCHES
(MILLIMETERS)
(800) 284-7007 • www.teledynerelays.com
KA/LA 79
KA/LA\072002\Q1
Series KA/LA
ENVIRONMENTAL SPECIFICATIONS
Ambient Temperature
Operating
Storage
Min
Max
-55
-55
+110
+125
Shock (0.5 ms Pulse)
Vibration (100 g)
10
Acceleration
Units
o
o
C
C
1500
g
3000
Hz
5000
g
INPUT CURRENT VS VOLTAGE
FIGURE 2 (SEE NOTE 2)
NOTES:
1. Control input is compatible with CMOS or open collector TTL
(with pull up resistor).
2. For bias voltages above 6 Vdc, a series resistor is
recommended. Use a standard resistor value equal to or
less than the value found from Figure 6.
3. Unless otherwise noted, the input voltage for functional tests
shall be 5 Vdc.
4. Output may temporarily lose blocking capability during and
after a surge, until TJ falls below maximum.
5. Transient suppression must be used to limit the voltage to <
500 Vpeak when switching inductive loads.
KA/LA 80
WIRING CONFIGURATION
FIGURE 1
(See Note 1 & 2)
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2002 TELEDYNE RELAYS
KA/LA\072002\Q1
Series KA/LA
THERMAL DERATING CURVE
LA SERIES / KA SERIES WITOUT HEATSINK
FIGURE 3 (A)
TYPICAL VOLTAGE DROP VS LOAD CURRENT OF
LA SERIES WITH 1 °C/W HEATSINK
FIGURE 5
THERMAL DERATING CURVE
LA SERIES WITH HEATSINK
FIGURE 3 (B)
SERIES LIMIT BIAS RESISTOR VS BIAS VOLTAGE
FIGURE 6 (SEE NOTE 2)
TYPICAL VOLTAGE DROP VS LOAD CURRENT OF
LA SERIES WITHOUT HEATSINK
FIGURE 4
© 2002 TELEDYNE RELAYS
TYPICAL THERMAL TRIP TIME
KA58HF AND LA58HL
FIGURE 7
(800) 284-7007 • www.teledynerelays.com
KA/LA 81
KA/LA\072002\Q1
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