LH1514AB [VISHAY]
Solid State Relay High Frequency; 固态继电器高频
| 型号： | LH1514AB |
| 厂家： | 
VISHAY |
| 描述： | Solid State Relay High Frequency |
| 文件： | 总6页 (文件大小：394K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LH1514AB/AAC/AACTR
2 Form A
Solid State Relay
High Frequency
FEATURES
Package Dimensions in Inches (mm)
• Load Voltage, 15 V
DIP
• Load Current, 150 mA
• Switching Capability up to 50 MHz
• Blocking Capability Dependent upon
Signal dv/dt
pin one ID
S1
S1'
7
S2
S2'
4
5
3
6
1
8
2
7
8
6
5
S1
S2
S1'
S2'
.268 (6.81)
.255 (6.48)
• Low and Typical R 5.0 Ω
ON
• 1.0 ms Actuation Time
• Low Power Consumption
1
2
3
4
.390 (9.91)
.379 (9.63)
• 3750 V
• Balanced Switching
• Linear AC/DC Operation
• Clean, Bounce-free Switching
• Surface-mountable
I/O Isolation
RMS
.045 (1.14)
.030 (0.76)
.300 (7.62)
typ.
.031 (0.79)
4° typ.
.150 (3.81)
.130 (3.30)
.250 (6.35)
.230 (5.84)
.050 (1.27)
10°
.035 (.89)
.020 (.51)
3°–9°
.012 (.30)
.008 (.20)
.022 (.56)
.018 (.46)
AGENCY APPROVALS
.130 (3.30)
.110 (2.79)
.100 (2.54) typ.
• UL – File No. E52744
• CSA – Certification 093751
• VDE 0884 Approval
SMD
Pin one I.D.
APPLICATIONS
.268 (6.81)
.255 (6.48)
• Protection Switching (T1 sparing)
– Digital Access Cross Connects
– D-type Channel Breaks
– Intraoffice Data Routing
• Transmission Switching
– T1 Multiplexing
.390 (9.91)
.379 (9.63)
.395 (10.03)
.375 (9.52)
.031 (.79)
typ.
.312 (7.80)
.298 (7.52)
.045 (1.14)
.030 (0.78)
.150 (3.81)
.130 (3.30)
Radius
– DSO (64 Kbits/s)
3° to 7°
– DS1 (1.544 Mbits/s)
– E1, DS1A (2.048 Mbits/s)
– DS1C (3.152 Mbits/s)
– DS2 (6.312 Mbits/s)
• Instrumentation
.010
(2.54)
typ.
4°
10°
.008 (.25)
.004 (.10)
.040 (1.02)
.020 (.51)
typ.
.315
(8.00)
typ.
.050
(1.27)
typ.
.100 (2.54)
typ.
– Scanners
– Testers
– Measurement Equipment
• See Application Note
DESCRIPTION
The LH1514 is a DPST normally open (2 Form A) SSR that can be
used in balanced high-frequency applications like T1 switching. With
its low ON-resistance and high actuation rate, the LH1514 is also very
attractive as a general-purpose 2 Form A SSR for balanced signals.
Part Identification
Part Number
LH1514AB
Description
The relays are constructed using a GaAlAs LED for actuation control
and an integrated monolithic die for the switch output. The die, fabri-
cated in a dielectrically isolated Smart Power BiCMOS, is comprised
of a photodiode array, switch control circuitry, and NMOS switches.
8-pin DIP, Tubes
LH1514AAC
LH1514AACTR
8-pin SMD, Gullwing, Tubes
8-pin SMD, Gullwing, Tape and
Reel
In balanced switching applications, internal circuitry shunts high-fre-
quency signals between two poles when the SSR is off. This bal-
anced T termination technique provides high isolation for the load.
Document Number: 83814
Revision 17-August-01
www.vishay.com
3–72
Recommended Operating Conditions
Absolute Maximum Ratings, T =25°C
A
Stresses in excess of the Absolute Maximum Ratings can cause permanent
damage to the device. These are absolute stress ratings only. Functional opera-
tion of the device is not implied at these or any other conditions in excess of
those given in the operational sections of the data sheet. Exposure to maximum
rating conditions for extended periods can adversely affect device reliability.
Parameter
Sym.
Min. Typ. Max. Unit
10 20 mA
LED Forward
Current for Switch
Turn-on
IFon
—
(T =–40°C to
A
+85°C)
Ambient Operating Temperature Range, T .................. –40° to +85°C
A
Storage Temperature Range, T ................................ –40° to +150°C
stg
Pin Soldering Temperature, t=10 s max, T ................................260°C
S
Input/Output Isolation ꢀoltage, V .....................................3750 ꢀ
ISO
RMS
LED Input Ratings:
Continuous Forward Current, I ...............................................50 mA
F
Reverse ꢀoltage, I ≤10 µA, V ...................................................10 ꢀ
R
R
Output Operation:
dc or Peak ac Load ꢀoltage, I ≤1.0 µA, V ................................15 ꢀ
L
L
Continuous dc Load Current, I
L
Each Pole, Two Poles Operating Simultaneously .................150 mA
Power Dissipation, P ..........................................................600 mW
DISS
Electrical Characteristics, T =25°C
A
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engi-
neering evaluations. Typical values are for information purposes only and are not part of the testing requirements.
Parameter
Symbol Min.
Typ.
2.0
1.8
1.26
3.0
0.2
70
Max.
5.0
Unit
mA
mA
ꢀ
Test Condition
I =100 mA, t=10 ms
LED Forward Current, Switch Turn-on
LED Forward Current, Switch Turn-off
LED Forward ꢀoltage
I
—
Fon
Foff
L
I
0.2
1.15
2.0
—
—
V = 10 ꢀ
L
1.45
5.0
I =10 mA
V
F
F
ON-resistance
RON
—
Ω
I =10 mA, I = 50 mA
F L
Pole-to-pole ON-resistance Matching (S1 to S2)
Output Off-state Bleed-through*
1.0
DΩ
mꢀ
I =10 mA, I = 50 mA
F L
—
100
f=1.5 MHz square wave
—
peak
t /t =5.0 ns
r f
(See Figure 13.)
–12
–9
–6
Output Off-state Leakage
—
—
3x10
200x10
A
A
IF=0 mA, VL= 5.0 ꢀ
VL= 15 ꢀ
—
—
–12
20x10
1.0
1.0x10
Output Off-state Leakage Pole to Pole
5.0
µA
IF=10 mA
Pins 7, 8 3.0 ꢀ
Pins 5, 6 Gnd
—
2.0
20
50
—
µA
Pins 7, 8 15 ꢀ
Pins 5, 6 Gnd
Output Capacitance Pins 5 to 6, 7 to 8
Pole-to-pole Capacitance (S1 to S2)
—
—
pF
I =0 mA, V =0
—
F
L
20
50
—
—
pF
pF
IF=0 mA, VL=0 ꢀ
IF=10 mA, VL=0 ꢀ
—
—
Turn-on Time
Turn-off Time
ton
toff
0.4
0.6
1.0
1.0
ms
ms
I =10 mA, I =20 mA
—
—
F
L
I =10 mA, I =20 mA
F
L
* Guaranteed by component measurement during wafer probe.
Document Number: 83814
Revision 17-August-01
www.vishay.com
3–73
Typical Performance Characteristics
Figure 1. LED Forward Current for Switch Turn-on/off
Figure 4. Breakdown Voltage Distribution Typical
4.0
100
I =100 mA
L
n=180
3.5
3.0
2.5
2.0
1.5
80
60
40
20
0
1.0
0.5
–40
–20
0
20
40
60
80
10
15
20
25
30
Ambient Temperature (°C)
Breakdown Voltage (V)
Figure 2. Leakage Current vs. Applied Voltage
Figure 5. Output Isolation
25
100
V =10 V
P
R =50 Ω
L
20
15
10
80
60
40
5
0
20
0
5
6
7
8
0
4
8
12
16
20
10
10
10
10
Frequency (Hz)
Applied Voltage (V)
Figure 3. ON-Resistance vs.Temperature
Figure 6. Insertion Loss (per Pole) vs. Frequency
8
0.5
6
4
2
0
0.4
R =90 Ω
L
0.3
0.2
0.1
0
–2
–4
–6
2
4
6
8
–40
–20
0
20
40
60
80
10
10
10
10
Ambient Temperature (°C)
Frequency (Hz)
Document Number: 83814
Revision 17-August-01
www.vishay.com
3–74
Figure 9. t /t vs.Temperature
Figure 7. t vs. LED Forward Current
on off
on
1.1
10
t
off
I =20 mA
L
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
8
85°C
6
25°C
4
–40°C
2
t
on
0
0
10
20
30
40
50
–40
–20
0
20
40
60
80
Ambient Temperature (°C)
LED Forward Current (mA)
Figure 10. t vs. LED Forward Current
Figure 8. Bleed-through Voltage vs. Rise Time
off
1.2
100
I =20 mA
L
–40°C
1.0
0.8
80
60
40
25°C
85°C
0.6
0.4
0.2
20
0
0
10
20
30
40
50
0
5
10
15
20
25
30
LED Forward Current (mA)
Rise Time (ns)
Document Number: 83814
Revision 17-August-01
www.vishay.com
3–75
Functional Description
Figure 11. Pin Diagram and Pin Outs
Figure 12 shows the switch characteristics of the relay. The
relay exhibits an ON-resistance that is exceptionally linear up
CONTROL +
CONTROL +
1
2
8
7
S1
to the knee current (I ). Beyond I , the incremental resistance
K
K
S1'
decreases, minimizing internal power dissipation.
DPST
CONTROL–
3
4
6
5
S2
In a 2 Form A relay, to turn the relay on, forward current is
applied to the LED. The amount of current applied determines
the amount of light produced for the photodiode array.
BLANK
S2'
This photodiode array develops a drive voltage for both NMOS
switch outputs. For high-temperature or high-load current
operations, more LED current is required.
Figure 12. Typical ON Characteristics
+I
For high-frequency applications, the LH1514 must be wired as
shown in the Figure 15 application diagram to minimize trans-
mission crosstalk and bleed-through. A single LH1514 pack-
age switches a single transmit twisted pair or a single receive
twisted pair. In this configuration when the SSR is turned off,
the SSR parries high-frequency signals by shunting them
through the SSR, thereby isolating the transformer load.
150 mA
I (max)
L
4.0 Ω
I
K
60 mA
–0.3 V
When switching alternate mark inversion (AMI) coding trans-
mission, the most critical SSR parameter is dv/dt bleed-
through. This bleed-through is a result of the rise and fall time
slew rates of the 3.0 ꢀ AMI pulses. The test circuit in Figure 13
illustrates these bleed-through glitches. It is important to rec-
ognize that the transmission limitations of the LH1514 are
bleed-through related and not frequency related. The maxi-
mum frequency the LH1514 SSR can switch will be determined
by the pulse rise and fall times and the sensitivity of the receive
electronics to the resultant bleed-through.
5.0 Ω
0.3 V
–60 mA
+V
–V
I
K
I (max)
L
–150 mA
–I
At data rates above 2.0 Mbits/s, the 50 pF pole-to-pole capaci-
tance of the LH1514 should be considered when analyzing the
load match to the transmission line. Please refer to the T1
Switching with the LH1514 SSR Application Note for further
information on load-matching and off-state blocking.
Test Circuit
Figure 13. Off-state Bleed-through
t 5.0 ns
r
NC
NC
NC
NC
1
2
3
4
8
7
6
5
t 5.0 ns
f
100 mV
max
3.0 V
50 Ω*
100 mV
max
f = 1.5 MHz
* 50 Ω load is derived from T1 applications where a 100 Ω load is paralleled with a 100 Ω line.
Document Number: 83814
Revision 17-August-01
www.vishay.com
3–76
Applications
Figure 14. Protection Switching Application:T1 Interface Operating; Spare in Test Loopback Mode
T1
INTERFACE
SPARE
INTERFACE 1
LH1514
LH1514
LH1514 LH1514
LH1514
LH1514
INTERFACE
2
(ETC.)
LH1514
LH1514
LH1514
T1 LINE 1
Figure 15.T1 Multiplexer Receive Data (Interface 1, Operating) Features
LH1514
1:2
100 Ω Z0
164 Ω
800 Ω
INTERFACE
1
RECEIVE
DATA
LINE
INTERFACE
90 Ω
LH1514
1:2
164 Ω
INTERFACE
2
800Ω
Document Number: 83814
Revision 17-August-01
www.vishay.com
3–77
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