LNBTVS
Transil™ for low noise block protection
Datasheet - production data
Description
A
K
SMC
(JEDEC DO-214AB)
A
K
SMB
(JEDEC DO-214AA)
Features
The LNBTVS series has been designed to protect
LNB voltage regulators in satellite set top boxes
against electrostatic discharges according to
IEC 61000-4-2, and MIL STD 883, method 3015,
and electrical over stress according to
IEC 61000-4-4 and 5. These devices can protect
against surges up to 6 kV over the whole
consumer temperature range (up to 85 °C).
Planar technology makes these devices suitable
for high-end set top boxes to provide reliability
and stability over time.
Peak pulse power:
– up to 3 kW (10/1000 µs)
– up to 22.5 kW (8/20 µs)
Breakdown voltage range: from 23.1 V to 30 V
Low clamping factor
LNBTVS are packaged in either SMB or SMC
(footprints in accordance with IPC 7531
standard).
Unidirectional with low VF (VF = 1.2 V at 3 A)
Table 1. Device summary
Low leakage current: 0.2 µA at 25 °C
Operating Tj max: 150 °C
Still IEC 61000-4-5 compliant at Tj = 85 °C with
standard footprint
High power capability at Tjmax:
– 1250 W (10/1000 µs)
Part number
IPP A (8/20 µs,
IEC 61000-4-5)
Package
LNBTVS3
250 (3 kV, 12 )
SMB
LNBTVS4
334 (4 kV, 12 )
SMC
LNBTVS6
500 (6 kV, 12 )
SMC
JEDEC registered package outline
Compatible with LNBH supply and control ICs
Complies with the following standards
IEC 61000-4-2 level 4:
– 15 kV (air discharge)
– 8 kV (contact discharge)
IEC 61000-4-5
MIL STD 883G, method 3015-7: class 3B:
– 25 kV HBM (human body model)
Resin meets UL 94, V0
MIL-STD-750, method 2026 solderability
EIA STD RS-481 and IEC 60286-3 packing
IPC 7531 footprint
May 2013
This is information on a product in full production.
TM: Transil is a trademark of STMicroelectronics
DocID17882 Rev 4
1/13
www.st.com
13
Characteristics
1
LNBTVS
Characteristics
Table 2. Absolute maximum ratings (Tamb = 25 °C)
Symbol
Parameter
Value
Unit
up to 22.5
kW
PPP
Peak pulse power dissipation(1) (8/20 µs)
Tstg
Storage temperature range
-65 to + 150
°C
Tj
Operating junction temperature range
-55 to + 150
°C
TL
Maximum lead temperature for soldering during 10 s.
260
°C
Tj initial = Tamb
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
Table 3. Thermal parameter
Symbol
Rth(j-l)
Parameter
Value
Unit
SMC
15
°C/W
SMB
20
°C/W
Junction to leads
Figure 1. Electrical characteristics - definitions
I
Symbol
VRM
VBR
VCL
IRM
IPP
αT
VF
Parameter
Stand-off voltage
Breakdown voltage
Clamping voltage
Leakage current @ VRM
Peak pulse current
Voltage temperature coefficient
Forward voltage drop
Unidirectional
IF
VF
VCL VBR VRM
IRM
IR
IPP
Figure 2. Pulse definition for electrical characteristics
%IPP
100
Pulse waveform
tr = rise time (µs)
tp = pulse duration time (µs)
50
0
2/13
tr
t
tp
DocID17882 Rev 4
V
LNBTVS
Characteristics
Table 4. Electrical characteristics, parameter values (Tamb = 25 °C)
IRM max @ VRM
Order code
25 °C 85 °C
µA
VCL @IPP
10/1000 µs
VBR @IR
min. typ. max.
V
V
max.
VCL @IPP
8/20 µs
max.
T (1)
C
max.
typ.
mA
V
A(2)
V
A(2)
10-4/ °C
nF
LNBTVS3-220U
0.2
1.0
20
22
23.1 24.2
1
33.2
45
35
250
9.3
3
LNBTVS4-220S
0.2
1.0
20
22
23.1 24.2
1
33.2
55
35
334
9.3
3.5
LNBTVS4-221S
0.2
1.0
20
22
23.1 24.2
1
33.2
60
32
334
9.3
5.5
LNBTVS4-222S
0.2
1.0
20
22
23.1 24.2
1
33.2
90
30
334
9.3
6
LNBTVS4-304S
0.2
1.0
28
30
31.5
1
45
56
45
334
9.8
4
LNBTVS6-220S
0.2
1.0
20
22
23.1 24.2
1
33.2
90
35
500
9.3
6
LNBTVS6-221S
0.2
1.0
20
22
23.1 24.2
1
33.2
90
32
500
9.3
6
LNBTVS6-304S
0.2
1.0
28
30
31.5
1
45
67
45
500
9.8
5
33
33
1. To calculate VBR versus junction temperature, use the following formula: VBR @ TJ = VBR @ 25°C x (1 + T
x (TJ – 25)).
2. Surge capability given for both directions.
Figure 3. Peak pulse current versus initial junction temperature with regular footprints
(typical values)
IPP(A)
IEC 61000-4-5
LNBTVS6
500
400
LNBTVS4
300
LNBTVS3
200
100
Tj(°C)
0
0
25
50
75
100
DocID17882 Rev 4
125
150
175
3/13
Characteristics
LNBTVS
Figure 4. Surge test examples at +4 kV - IEC 61000-4-5, R = 12
LNBTVS4-221S
LNBTVS4-220S
LNBTVS6-221S
Figure 5. Surge test examples at 334 A and 500 A - IEC 61000-4-5, R = 2
334.0 A
334.0 A
LNBTVS6-304S
LNBTVS4-304S
500.0 A
LNBTVS6-304S
4/13
DocID17882 Rev 4
LNBTVS
2
Application information
Application information
Figure 6. Application schematic with LNBH23 and LNBTVSx
D3
L2
Vup
C4 C3
C9
VoTX
C5 C6
LNBH23
(or LNBH24 sec-A/B)
D1
to LNB
IF Connector
C13
D4
Lseries >13nH
L3
LX
L1
VoRX
C10
Vcc
D2
D5
LNBTVSx-22xx
R4
R1
Vin
12V
Vcc-L
DETIN
R3
C7
C1
Byp
EXTM
C8
I2C Bus
SDA
SCL
{
C12
C11
ADDR
DSQOUT
VCTRL
P-GND A-GND
ISEL
R2 (RSEL)
Figure 7. Application schematic with LNBH23L and LNBTVSx
D3
D3
Vup
C4
C3
C6
to LNB
IF Connector
VoTX
LNBH23L
(or LNBH24L sec-A/B)
R9
C15
Lseries >13nH
EXTM
D1
VoRX
LX
C10
L1
D2
D4
LNBTVSx-22xx
Vcc
Vin
12V
Vcc-L
C1
C8
PDC
I2C Bus
{
SDA
TTX
SCL
ISEL
ADDR
DSQIN
R2 (RSEL)
P-GND A-GND
DocID17882 Rev 4
Byp
C11
5/13
Application information
LNBTVS
Figure 8. Application schematic with LNBH25/26 and LNBTVSx
to LNB IF connector
D2
Lseries > 13 nH
Vup
Vout
D4
LNBTVSxx
D1
C3
C2
C5
LX
D3
LNBH25
(or LNBH26 sec - A/B)
L1
Vin
12V
Vcc
C4
C1
DiSEqC
22KHz
TTL
DSQIN
or
DiSEqC
Envelope
ADDR
TTL
I2C Bus
{
SDA
FLT
SCL
R1 (RSEL)
ISEL
P-GND
A-GND
Byp
C7
LNBHxx output is usually connected to the antenna cable of digital satellite receivers.
Atmospheric phenomenon can cause high voltage discharges on the antenna cable causing
damages to the attached devices.
In applications where it is required to be protected against lightning surges, transient voltage
suppressor (TVS) devices like LNBTVSx-22xx can be used to protect LNBHxx and the other
devices electrically connected to the antenna cable.
The LNBTVSx-22xx diodes are dedicated lightning and electrical overstress surge
protection for LNBHxx voltage regulators. These protection diodes were designed to comply
with the stringent IEC 61000-4-5 standard with surges up to 500 A with a whole range of
products.
TVS diodes have intrinsic capacitance that attenuates the RF signal. For this reason, the
LNBTVSx-22xx cannot be directly connected to the IF (RX/TX) cable connector that carries
the RF signals coming from the LNB. To suppress the effect of the intrinsic capacitance, an
inductance must be placed in series with the TVS diode (see Figure 9). The goal of the L
series and LNBTVC inductance is to be transparent at 22 kHz and to reject frequencies
higher than 900 MHz.
The value of the series inductance is usually > 13 nH, with a current capability higher than
the Ipp (peak pulse current) expected during the surge.
6/13
DocID17882 Rev 4
LNBTVS
Application information
Figure 9. Example of LNBTVS diode connection
D3
1N4007
VoTX
IF Connector
R9
C15
LNBH23L
Lseries >13nH
EXTM
VoRX
C10
DocID17882 Rev 4
D2
D6
LNBTVSx-22xx
LNBTVSx
7/13
Package information
3
LNBTVS
Package information
Case: JEDEC DO-214AB or JEDEC DO-214AA molded plastic over planar junction
Terminals: solder plated, solderable as per MIL-STD-750, Method 2026
Polarity: for unidirectional types the band indicates cathode
Flammability: epoxy is rated UL 94, V0
RoHS package
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Figure 10. SMC dimension definitions
E1
D
E
A1
C
A2
E2
L
b
Table 5. SMC dimension values
Dimensions
Ref.
8/13
Millimeters
Inches
Min.
Max.
Min.
Max.
A1
1.90
2.45
0.075
0.096
A2
0.05
0.20
0.002
0.008
b
2.90
3.20
0.114
0.126
c
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
DocID17882 Rev 4
LNBTVS
Package information
Figure 11. SMB dimension definitions
E1
D
E
A1
A2
C
L
b
Table 6. SMB dimension values
Dimensions
Ref.
Millimeters
Inches
Min.
Max.
Min.
Max.
A1
1.90
2.45
0.075
0.096
A2
0.05
0.20
0.002
0.008
b
1.95
2.20
0.077
0.087
c
0.15
0.40
0.006
0.016
D
3.30
3.95
0.130
0.156
E
5.10
5.60
0.201
0.220
E1
4.05
4.60
0.159
0.181
L
0.75
1.50
0.030
0.059
Figure 12. SMC footprint dimensions in
mm (inches)
1.54
(0.061)
5.11
(0.201)
Figure 13. SMB footprint dimensions in
mm (inches)
1.54
(0.061)
1.62
2.60
(0.064) (0.102)
3.14
(0.124)
1.62
(0.064)
2.18
(0.086)
5.84
(0.23)
8.19
(0.322)
DocID17882 Rev 4
9/13
Package information
LNBTVS
Figure 14. Marking layout
Cathode bar (unidirectional devices only )
x x x
z y ww
Note:
10/13
e: ECOPACK compliance
XXX: Marking
Z: Manufacturing location
Y: Year
WW: week
Marking layout can vary according to assembly location.
DocID17882 Rev 4
LNBTVS
4
Ordering information
Ordering information
Figure 15. Ordering information scheme
LNB
TVS
x
- VV
x x
Low noise block regulator
Transient voltage suppressor
Lightning surge level
3 = 250 A
4 = 334 A
6 = 500 A
VBR min
VCL
0 = 35 V
1 = 32 V
2 = 30 V
4 = 45 V
Package
U = SMB
S = SMC
Table 7. Ordering information
Order code
Marking
Package
Weight (g)
Base qty
Delivery mode
LNBTVS3-220U
LC
SMB
0.107
2500
Tape and reel
LNBTVS4-220S
LAA
SMC
0.245
2500
Tape and reel
LNBTVS4-221S
LAB
SMC
0.245
2500
Tape and reel
LNBTVS4-222S
LAC
SMC
0.245
2500
Tape and reel
LNBTVS6-220S
LBA
SMC
0.245
2500
Tape and reel
LNBTVS6-221S
LBB
SMC
0.245
2500
Tape and reel
LNBTVS4-304S
LAD
SMC
0.245
2500
Tape and reel
LNBTVS6-304S
LBC
SMC
0.245
2500
Tape and reel
DocID17882 Rev 4
11/13
Revision history
5
LNBTVS
Revision history
Table 8. Document revision history
12/13
Date
Revision
Changes
30-Aug-2010
1
First release. This document merges and updates the
content of datasheets LNBTVSx-22xx Revision 3, 20Jan-2007, and LNBTVSx-304 Revision 1, 01-Apr-2008.
22-Oct-2010
2
Updated Figure 13.
05-Sep-2011
3
Added Figure 8.
21-May-2013
4
Added Table 1: Device summary.
DocID17882 Rev 4
LNBTVS
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