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LNBTVSX-22XX
Lightning protection for LNB power supply
Features

3 kV, 4 kV and 6 kV protection (8/20 s) Axial & SMD package Unidirectional and low VF (VF = 1.2 V at IF = 3 A) Low clamping factor Fast response time
K
A A K K A
DO-201
SMB
SMC
Description
The LNBTVSX-22XX is a dedicated lightning and electrical overstress surge protection for LNB voltage regulators in satellite set top box applications. This device provides the lightning protection required to pass the IEC and FCC regulations. Available in axial, SMB and SMC packages, this device is compatible with industry standard mounting processes.
Order Code
Part number LNBTVS3-220 LNBTVS3-220U LNBTVS4-220 LNBTVS4-220S LNBTVS4-221 LNBTVS4-221S LNBTVS4-222S LNBTVS6-220S LNBTVS6-221S Marking LNBTVS3-220 LC LNBTVS4-220 LAA LNBTVS4-221 LAB LAC LBA LBB
Table 1.
Symbol PPP P IFSM Tstg Tj TL
Absolute maximum ratings (Tamb = 25 C)
Parameter Peak pulse power dissipation
(1)
Value Tj initial = Tamb Tamb = 75 C Tp = 10 ms Tj initial = Tamb up to 3 kW 5 200 -65 to + 175 150 230
Unit W W A C C C
Peak dissipation on infinite heatsink Non repetitive surge peak forward current for unidirectional types Storage temperature range Maximum junction temperature
Maximum lead temperature for soldering during 10 s at 5 mm from case
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
January 2007
Rev 3
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www.st.com
Characteristics
LNBTVSX-22XX
1
Table 2.
Symbol Rth (j-l) Rth (j-a) Rth (j-l) Rth (j-a) Rth (j-l) Rth (j-a)
Characteristics
Thermal resistance
Parameter Junction to leads Junction to ambient on printed circuit Llead = 10 mm Junction to case Junction to ambient on printed circuit Junction to case Junction to ambient on printed circuit Package DO-201 DO-201 SMB SMB SMC SMC Value 20 75 20 100 20 75 Unit C/W C/W C/W C/W C/W C/W
Table 3.
Symbol VBR IRM VRM VCL IPP RI/O Cline IF VF
Electrical characteristics (Tamb = 25 C)
Parameter Breakdown voltage Leakage current @ VRM Stand-off voltage Clamping voltage Peak pulse current Series resistance between Input & Output Input capacitance per line Forward current Forward voltage PPP 10/1000 S VCL @ Ipp 10/1000 s Max mA 1 1 1 1 1 1 1 1 1 W 1500 1500 1800 1800 2000 2000 3000 3000 3000 V 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 A 45 45 55 55 60 60 90 90 90 VCL @ Ipp 8/20 s (1) Max V 35 35 35 35 32 32 30 35 32 A 250 250 331 331 331 331 331 500 500
VCL VBR VRM IRM IR VF V I
IF
IPP
Type
IRM @VRM Max Min V 20 20 20 20 20 20 20 20 20 V 22 22 22 22 22 22 22 22 22
VBR @ IR Typ Max V V
T Max 10-4/C 9.6 9.6 9.6 9.6 9.6 9.6 9.6 9.6 9.6
C Typ pF 3000 3000 3500 3500 5500 5500 6000 6000 6000
Unidirectional LNBTVS3-220 LNBTVS3-220U LNBTVS4-220 LNBTVS4-220S LNBTVS4-221 LNBTVS4-221S LNBTVS4-222S LNBTVS6-220S LNBTVS6-221S
A 1 1 1 1 1 1 1 1 1
23.1 24.2 23.1 24.2 23.1 24.2 23.1 24.2 23.1 24.2 23.1 24.2 23.1 24.2 23.1 24.2 23.1 24.2
1. IEC 61000-4-5 R = 12
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LNBTVSX-22XX Figure 1.
Characteristics Surge test examples at +4 kV - IEC 61000-4-5 - with series resistor of 12
LNBTVS4-220S
LNBTVS4-221S
LNBTVS6-221S
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Application
LNBTVSX-22XX
2
Application
Figure 2.
Gate Sense
StepController
Application diagram
LNBP/S
Feedback
LT1
LT2
L
Vup Vcc Byp
OUT
Preregul. U.V.lockout +P.ON
Enable I V Linear Post-reg +Modulator +Protection
R
EXTM
SCL
Diagnostics
SDA ADDR DSQIN
IC 22 kHz Oscill Tone Detector
DETIN DSQOUT
LNBTVSX-22XX
Table 4.
Optimized fit to ST voltage regulators
Recommended lightning protections
LNB voltage regulators
LNBP20, LNBP11x, LNBP8/9 LNBTVS3-220/x, LNBTVS4-220/x, LNBTVS6-220S, LNBTVS6-221S LNBS21, LNBP21 LNBH21, LNBH221, LNBH22, LNBEH21, LNBEH221 LNBH23, LNBH24 LNBTVS4-222S, LNBTVS6-221S LNBTVS4-220/x, LNBTVS4-221/x, LNBTVS6-221S LNBTVS4-221/x, LNBTVS4-222S, LNBTVS6-221S
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LNBTVSX-22XX
Ordering information scheme
3
Ordering information scheme
LNB
Low noise block regulator Transient voltage suppressor Lightning surge level 3 = 3 kV 4 = 4 kV 6 = 6 kV VBR 22 = 22 V VCL 0 = 35 V 1 = 32 V 2 = 30 V Package U = SMB S = SMC Blank = DO201
TVS
x
- 22
xx
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Package information
LNBTVSX-22XX
4
Package information
Epoxy meets UL 94, V0 SMC package dimensions
DIMENSIONS REF.
E1
Table 5.
Millimeters Min. Max. 2.45 0.20 3.2 0.41 8.15 7.15 4.70 6.25 1.60
Inches Min. 0.075 0.002 0.114 0.006 0.305 0.260 0.173 0.218 0.030 Max. 0.096 0.008 0.126 0.016 0.321 0.281 0.185 0.246 0.063
A1
D
1.90 0.05 2.90 0.15 7.75 6.60 4.40 5.55 0.75
A2 b
E
c E
A1
E1 E2
b
C
A2 E2 L
D L
Figure 3.
SMC footprint (dimensions in mm)
1.54
5.11
1.54
3.14
8.19
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LNBTVSX-22XX Table 6. SMB package dimensions
Package information
DIMENSIONS
E1
REF.
Millimeters Min. Max. 2.45 0.20 2.20 0.41 5.60 4.60 3.95 1.60
Inches Min. Max.
D
A1 A2 b
1.90 0.05 1.95 0.15 5.10 4.05 3.30 0.75
0.075 0.096 0.002 0.008 0.077 0.087 0.006 0.016 0.201 0.220 0.159 0.181 0.130 0.156 0.030 0.063
E
c E
A1
E1
b
C
A2 L
D L
Figure 4.
SMB footprint (dimensions in mm)
1.62
2.60
1.62
2.18
5.84
Table 7.
B
DO-201 package dimensions
DIMENSIONS
A B
REF.
Millimeters Min. Max. 9.5
Inches Min. Max.
OD OC
A B OC OD
8.5 25.4 4.8 0.96
0.335 0.374 1
5.3 1.06
0.189 0.209 0.038 0.042
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) 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.
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Ordering information
LNBTVSX-22XX
5
Ordering information
Delivery mode Amopack Tape and reel Amopack Tape and reel Amopack Tape and reel Tape and reel Tape and reel Tape and reel
Part number LNBTVS3-220 LNBTVS3-220U LNBTVS4-220 LNBTVS4-220S LNBTVS4-221 LNBTVS4-221S LNBTVS4-222S LNBTVS6-220S LNBTVS6-221S
Marking LNBTVS3-220 LC LNBTVS4-220 LAA LNBTVS4-221 LAB LAC LBA LBB
Package DO-201 SMB DO-201 SMC DO-201 SMC SMC SMC SMC
Weight 0.83 0.107 0.83 0.245 0.83 0.245 0.245 0.245 0.245
Base qty 600 2500 600 2500 600 2500 2500 2500 2500
6
Revision history
Date 30-Sep-2005 10-Apr-2006 Revision 1 2 First release Reformatted to current standard. Corrected peak pulse power dissipation for LNBTVS6-220S in Table 2. Corrected footprint dimensions for SMC and SMB packages. Added surge test examples in Figure 1. Added Table 4. Optimized fit to ST voltage regulators. Added cathode bar indicators in package illustrations on page 1. Changes
29-Jan-2007
3
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LNBTVSX-22XX
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