STMICROELECTRONICS LNBTVSX-304

LNBTVSx-304
Lightning protection for LNB power supply
Features
■
1 kV, 500 A protection (8/20 µs 1.2/50 µs)
■
SMC package
■
Unidirectional and low VF
(VF = 1.2 V at IF = 9 A)
■
Low clamping factor
■
Fast response time
A
K
SMC
Description
The LNBTVSx-304 is a dedicated lightning and
electrical overstress surge protection for LNB
voltage regulators in satellite set top box
applications.
Table 1.
Characteristic
This device provides lightning protection based on
the IEEE C62.41.2 standard.
Available in the SMC package, this device is
compatible with industry standard mounting
processes.
April 2008
Device summary
Rev 1
LNBTVS4-304S LNBTVS6-304S
Lightning surge
level (8/20 µs
1.2/50 µs
combination
wave)
700 V, 350 A
1000 V, 500 A
Clamping voltage
(max)
45 V @ 333 A
45 V @ 500 A
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Characteristics
LNBTVSx-304
1
Characteristics
Table 2.
Absolute maximum ratings (Tamb = 25° C)
Symbol
Parameter
Peak pulse power dissipation (1)
Tj initial = Tamb
Peak dissipation on infinite heatsink
Tamb = 75° C
IFSM
Non repetitive surge peak forward current
for unidirectional types
Tp = 10 ms
Tj initial = Tamb
Tstg
Storage temperature range
PPP
P
Value
Unit
up to 3 kW
W
5
W
LNBTVS4-304S
250
A
LNBTVS6-304S
300
A
-65 to + 175
°C
Tj
Maximum junction temperature
150
°C
TL
Maximum lead temperature for soldering during 10 s at 5 mm from case
260
°C
Value
Unit
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
Table 3.
Thermal resistance
Symbol
Parameter
Rth (j-l)
Junction to case
20
° C/W
Rth (j-a)
Junction to ambient on printed circuit
75
° C/W
Table 4.
Electrical characteristics (Tamb = 25° C)
Symbol
Parameter
I
VBR
Breakdown voltage
IRM
Leakage current @ VRM
VRM
Stand-off voltage
VCL
Clamping voltage
IPP
Peak pulse current
RI/O
Series resistance between
Input & Output
Cline
Input capacitance per line
IF
Forward current
VF
Forward voltage
Max
VF
VCL VBR VRM
IRM @VRM
Type
IF
IPP
PPP
10/1000 µS
VBR @ IR
Min
V
IRM
IR
Typ Max
VCL @ Ipp
10/1000 µs
VCL @ Ipp
8/20 µs (1)
Max
Max
αT
C
Max
Typ
µA
V
V
V
V
mA
W
V
A
V
A
10-4/°C
pF
LNBTVS4-304S
1
28
30
31.5
33
1
2500
45
56
45
333
9.6
4000
LNBTVS6-304S
1
28
30
31.5
33
1
3000
45
67
45
500
9.6
5000
1. IEEE C62.41.2, R = 2 Ω
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LNBTVSx-304
Figure 1.
Characteristics
Surge test examples at 300 A and 500 A according to IEEE C62.41.2 standard
LNBTVS4-304S
LNBTVS6-304S
LNBTVS6-304S
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Ordering information scheme
2
LNBTVSx-304
Ordering information scheme
Figure 2.
Ordering information scheme
LNB
TVS
Low noise block regulator
Transient voltage suppressor
Lightning surge level
4 = 700 V, 350 A (8/20 µs, 1.2/50 µs combination waveform
6 = 1000 V, 500 A (8/20 µs, 1.2/50 µs combination waveform
VBR (min)
30 = 30 V
VCL (max)
4 = 45 V
Package
S = SMC
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x
- 30
4
S
LNBTVSx-304
3
Package information
Package information
●
Epoxy meets UL 94, V0
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at www.st.com.
Table 5.
SMC dimensions
Dimensions
Ref.
E1
D
A1
C
A2
E2
L
b
Inches
Min.
Max.
Min.
Max.
A1
1.90
2.45
0.075
0.096
A2
0.05
0.20
0.002
0.008
b(1)
2.90
3.20
0.114
0.126
(1)
0.15
0.40
0.006
0.016
D
5.55
6.25
0.218
0.246
E
7.75
8.15
0.305
0.321
E1
6.60
7.15
0.260
0.281
E2
4.40
4.70
0.173
0.185
L
0.75
1.50
0.030
0.059
c
E
Millimeters
1. Dimensions b and c apply to plated leads
Figure 3.
SMC footprint, dimensions in mm (inches)
1.54
(0.061)
5.11
(0.201)
1.54
(0.061)
3.14
(0.124)
8.19
(0.322)
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Ordering information
4
Ordering information
Table 6.
5
Ordering information
Order code
Marking
Package
Weight
Base qty
Delivery mode
LNBTVS4-304S
LAD
SMC
0.245
2500
Tape and reel
LNBTVS6-304S
LBC
SMC
0.245
2500
Tape and reel
Revision history
Table 7.
6/7
LNBTVSx-304
Revision history
Date
Revision
1-Apr-2008
1
Changes
First release
LNBTVSx-304
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