LNBTVS3 [STMICROELECTRONICS]
Transil⢠for low noise block protection;
| 型号： | LNBTVS3 |
| 厂家： | 
ST |
| 描述： | Transil⢠for low noise block protection |
| 文件： | 总13页 (文件大小：427K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LNBTVS
Transil™ for low noise block protection
Datasheet - production data
Description
A
A
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).
K
SMC
SMB
(JEDEC DO-214AA)
(JEDEC DO-214AB)
Features
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)
LNBTVS are packaged in either SMB or SMC
(footprints in accordance with IPC 7531
standard).
Breakdown voltage range: from 23.1 V to 30 V
Low clamping factor
Unidirectional with low V (V = 1.2 V at 3 A)
F
F
Table 1. Device summary
IPP A (8/20 µs,
Low leakage current: 0.2 µA at 25 °C
Operating T : 150 °C
Part number
Package
j max
IEC 61000-4-5)
Still IEC 61000-4-5 compliant at T = 85 °C with
j
LNBTVS3
LNBTVS4
LNBTVS6
250 (3 kV, 12 )
334 (4 kV, 12 )
500 (6 kV, 12 )
SMB
SMC
SMC
standard footprint
High power capability at T
:
jmax
– 1250 W (10/1000 µs)
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
TM: Transil is a trademark of STMicroelectronics
May 2013
DocID17882 Rev 4
1/13
This is information on a product in full production.
www.st.com
13
Characteristics
LNBTVS
1
Characteristics
Table 2. Absolute maximum ratings (T
Parameter
= 25 °C)
amb
Symbol
Value
Unit
PPP
Tstg
Tj
Peak pulse power dissipation(1) (8/20 µs)
Tj initial = Tamb
up to 22.5
-65 to + 150
-55 to + 150
260
kW
°C
°C
°C
Storage temperature range
Operating junction temperature range
Maximum lead temperature for soldering during 10 s.
TL
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
Table 3. Thermal parameter
Symbol
Parameter
Value
Unit
SMC
SMB
15
20
°C/W
°C/W
Rth(j-l)
Junction to leads
Figure 1. Electrical characteristics - definitions
I
Symbol Parameter
IF
Unidirectional
VCLVBR VRM
VRM
VBR
VCL
IRM
IPP
Stand-off voltage
Breakdown voltage
Clamping voltage
Leakage current @ VRM
Peak pulse current
VF
V
IRM
IR
αT
VF
Voltage temperature coefficient
Forward voltage drop
IPP
Figure 2. Pulse definition for electrical characteristics
%I
PP
100
Pulse waveform
tr = rise time (µs)
50
tp = pulse duration time (µs)
0
t
t
t
r
p
2/13
DocID17882 Rev 4
LNBTVS
Characteristics
Table 4. Electrical characteristics, parameter values (T
VCL @IPP
= 25 °C)
amb
VCL @IPP
8/20 µs
I
RM max @ VRM
VBR @IR
T (1)
C
10/1000 µs
Order code
25 °C 85 °C
µA
min. typ. max.
V
max.
max.
max.
typ.
nF
V
mA
V
A(2)
V
A(2) 10-4/ °C
LNBTVS3-220U
LNBTVS4-220S
LNBTVS4-221S
LNBTVS4-222S
LNBTVS4-304S
LNBTVS6-220S
LNBTVS6-221S
LNBTVS6-304S
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
20
20
20
20
28
20
20
28
22 23.1 24.2
22 23.1 24.2
22 23.1 24.2
22 23.1 24.2
30 31.5 33
22 23.1 24.2
22 23.1 24.2
30 31.5 33
1
1
1
1
1
1
1
1
33.2
33.2
33.2
33.2
45
45
55
60
90
56
90
90
67
35
35
32
30
45
35
32
45
250
334
334
334
334
500
500
500
9.3
9.3
9.3
9.3
9.8
9.3
9.3
9.8
3
3.5
5.5
6
4
33.2
33.2
45
6
6
5
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
300
200
100
0
LNBTVS4
LNBTVS3
Tj(°C)
0
25
50
75
100
125
150
175
DocID17882 Rev 4
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
Application information
2
Application information
Figure 6. Application schematic with LNBH23 and LNBTVSx
D3
L2
Vup
C9
VoTX
to LNB
IF Connector
C4
D1
C5
C6
C3
LNBH23
C13
L3
D4
(or LNBH24 sec-A/B)
Lseries >13nH
LX
L1
VoRX
D5
D2
R3
Vcc
C10
R4
LNBTVSx-22xx
R1
Vin
12V
Vcc-L
DETIN
C12
Byp
EXTM
C8
C7
C1
C11
SDA
SCL
ADDR
2
I C Bus
{
DSQOUT
VCTRL
ISEL
A-GND
P-GND
R2 (RSEL)
Figure 7. Application schematic with LNBH23L and LNBTVSx
D3
D3
to LNB
IF Connector
Vup
VoTX
LNBH23L
(or LNBH24L sec-A/B)
R9
C4
D1
C6
C3
C15
Lseries >13nH
EXTM
VoRX
LX
C10
D2
D4
L1
LNBTVSx-22xx
Vcc
Vin
Vcc-L
12V
C8
C1
PDC
SDA
TTX
SCL
2
I C Bus
{
ISEL
ADDR
R2 (RSEL)
DSQIN
Byp
A-GND
P-GND
C11
DocID17882 Rev 4
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
L1
C3
C2
C5
D3
LX
LNBH25
(or LNBH26 sec -A/B)
Vin
Vcc
12V
C4
C1
DiSEqC
22KHz
TTL
TTL
DSQIN
or
DiSEqC
Envelope
ADDR
SDA
I2C Bus
{
FLT
Byp
SCL
R1 (RSEL)
ISEL
P-GND
A-GND
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 I (peak pulse current) expected during the surge.
pp
6/13
DocID17882 Rev 4
LNBTVS
Application information
Figure 9. Example of LNBTVS diode connection
D3
1N4007
VoTX
IF Connector
R9
C15
Lseries >13nH
EXTM
VoRX
LNBH23L
C10
D2
D6
LNBTVSx-22xx
DocID17882 Rev 4
7/13
Package information
LNBTVS
3
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.
Millimeters
Inches
Min.
Max.
Min.
Max.
A1
A2
b
1.90
0.05
2.90
0.15
5.55
7.75
6.60
4.40
0.75
2.45
0.20
3.20
0.40
6.25
8.15
7.15
4.70
1.50
0.075
0.002
0.114
0.006
0.218
0.305
0.260
0.173
0.030
0.096
0.008
0.126
0.016
0.246
0.321
0.281
0.185
0.059
c
D
E
E1
E2
L
8/13
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
Max.
Min.
Max.
Min.
A1
A2
b
1.90
0.05
1.95
0.15
3.30
5.10
4.05
0.75
2.45
0.20
2.20
0.40
3.95
5.60
4.60
1.50
0.075
0.002
0.077
0.006
0.130
0.201
0.159
0.030
0.096
0.008
0.087
0.016
0.156
0.220
0.181
0.059
c
D
E
E1
L
Figure 12. SMC footprint dimensions in
mm (inches)
Figure 13. SMB footprint dimensions in
mm (inches)
1.54
5.11
1.54
(0.061)
(0.201)
(0.061)
1.62
2.60
1.62
(0.064) (0.102) (0.064)
3.14
(0.124)
2.18
(0.086)
5.84
(0.23)
8.19
(0.322)
DocID17882 Rev 4
9/13
Package information
LNBTVS
Figure 14. Marking layout
devices only)
unidirectional
Cathode bar (
e: ECOPACK compliance
XXX: Marking
Z: Manufacturing location
Y: Year
WW: week
x x x
z y w w
Note:
Marking layout can vary according to assembly location.
10/13
DocID17882 Rev 4
LNBTVS
Ordering information
4
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
V
BR min
V
CL
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
LNBTVS4-220S
LNBTVS4-221S
LNBTVS4-222S
LNBTVS6-220S
LNBTVS6-221S
LNBTVS4-304S
LNBTVS6-304S
LC
SMB
SMC
SMC
SMC
SMC
SMC
SMC
SMC
0.107
0.245
0.245
0.245
0.245
0.245
0.245
0.245
2500
2500
2500
2500
2500
2500
2500
2500
Tape and reel
Tape and reel
Tape and reel
Tape and reel
Tape and reel
Tape and reel
Tape and reel
Tape and reel
LAA
LAB
LAC
LBA
LBB
LAD
LBC
DocID17882 Rev 4
11/13
Revision history
LNBTVS
5
Revision history
Table 8. Document revision history
Date
Revision
Changes
First release. This document merges and updates the
30-Aug-2010
1
content of datasheets LNBTVSx-22xx Revision 3, 20-
Jan-2007, and LNBTVSx-304 Revision 1, 01-Apr-2008.
22-Oct-2010
05-Sep-2011
21-May-2013
2
3
4
Updated Figure 13.
Added Figure 8.
Added Table 1: Device summary.
12/13
DocID17882 Rev 4
LNBTVS
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13/13
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