STMICROELECTRONICS LFTVS10-1F3

LFTVS10-1F3
Transil™, transient voltage suppressor
Features
■
Transient voltage suppressor
■
Electrostatic discharge protection
■
Electrical overstress protection
■
Unidirectional device
■
Low clamping factor VCL/VBR
■
Fast response time
■
Very thin package: 0.605 mm
■
RoHS compliant
Flip Chip
(4 bumps)
Figure 1.
A
Complies with the following standards:
■
Pin configuration (bump side)
B
IEC 61000-4-2 level 4
– ± 15 kV (air discharge)
– ± 8 kV (contact discharge)
1
2
Description
The LFTVS10-1F3 is a single line diode designed
specifically for the protection of integrated circuits
in portable equipment and miniaturized electronic
devices subject to ESD and EOS transient
overvoltages.
Figure 2.
Device configuration
A1 and A2
B1 and B2
TM: Transil is a trademark of STMicroelectronics
November 2008
Rev 1
1/7
www.st.com
Characteristics
1
LFTVS10-1F3
Characteristics
Table 1.
Absolute maximum ratings (Tamb = 25 °C)
Symbol
Parameter
Test condition
Value
Peak pulse power dissipation
(10/1000 µs pulse)
PPP
Peak pulse power dissipation
(8/20 µs pulse)
IFSM
Non repetitive surge peak forward
current
Tstg
Storage temperature range
Tj
Table 2.
44
Tj initial = Tamb
tp = 10 ms
Tj initial = Tamb
11
A
-55 to +150
°C
125
°C
Electrical characteristics (Tamb = 25 °C)
Parameter
VBR
Breakdown voltage
IRM
Leakage current @ VRM
VRM
Stand-off voltage
VCL
Clamping voltage
Rd
Dynamic impedance
IPP
Peak pulse current
αT
Voltage temperature coefficient
VF
Forward voltage drop
I
IF
Symbol
Test conditions
VBR
IR = 15 mA
IRM
VRM = 8 V
VCL
(1)
V
IRM
Slope = 1/Rd
Min.
Typ.
IPP
Max.
10
(2)
0.5
µA
13
V
1.05
8
VR = 0 V, VOSC = 30 mV, F = 1 MHz
Unit
V
IPP = 1 A
IF = 850 mA
VF
VCL VBR VRM
αT
Cline
W
350
Maximum operating junction temperature
Symbol
VF
Unit
200
V
10-4
/ °C
pF
1. 8 / 20 µs pulse waveform
2. DC current not recommended for more than 5 s. Even if diode failure mode is short circuit the bumps could
exceed melting temperature and the component disassembled from the board.
2/7
LFTVS10-1F3
Figure 3.
Characteristics
Relative variation of peak pulse
power versus initial junction
temperature
Figure 4.
PPP[Tj initial] / PPP[Tj initial=25°C]
10000
1.1
Peak pulse power versus
exponential pulse duration (typical
value)
PPP(W)
Tj initial = 25 °C
1.0
0.9
0.8
1000
0.7
0.6
0.5
0.4
100
0.3
0.2
0.1
tp(µs)
Tj(°C)
10
0.0
0
25
Figure 5.
10.0
50
75
100
125
1
150
Clamping voltage versus peak
pulse current (typical values)
10
Figure 6.
IPP(A)
100
1000
Relative variation of leakage
current versus junction
temperature (typical values)
IR[Tj] / IR[Tj=25°C]
1000
Pulse 8 / 20 µs
VR =8V
100
1.0
25 °C
10
85 °C
-30 °C
Tj(°C)
VCL(V)
1
0.1
5
6
7
Figure 7.
8
9
10
11
12
13
14
15
16
Forward voltage drop versus peak
forward current (typical values)
0.1
Tj initial = 25 °C
Tj initial = 85 °C
Tj initial = -30 °C
0.001
VFM(V)
0.0001
0.0
50
Figure 8.
75
100
125
Junction capacitance versus line
voltage (typical values)
Capacitance(pF)
IFM(A)
1
0.01
25
17
0.2
0.4
0.6
0.8
1.0
1.2
1.4
250
240
230
220
210
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
F=1 MHz
VOSC=30mVRMS
TJ=25°C
Vr=0 to 8V
Voltage(V)
0
1
2
3
4
5
6
7
8
3/7
Ordering information scheme
Figure 9.
LFTVS10-1F3
Breakdown voltage versus initial junction temperature (typical value)
13.0
VBR(V)
12.0
11.0
10.0
9.0
Tj(° C)
8.0
-40
2
-15
10
35
60
85
110
135
Ordering information scheme
Figure 10. Ordering information scheme
LF
Low forward voltage
Transient voltage suppressor
Breakdown voltage
10 = 10 VMAX
Number of lines
1 = single line
Package
F = Flip Chip
3 = Lead-free, pitch = 400 µm
4/7
TVS 10 - 1 F3
LFTVS10-1F3
3
Package information
Package information
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 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.
400 µm ± 40
Figure 11. Flip Chip dimensions
605 µm ± 55
0.77 mm ± 30 µm
185 µm ± 10
400 µm ± 40
205 µm ± 40
185 µm ± 10
0.77 mm ± 30 µm
Figure 12. Footprint recommendations
Copper pad Diameter:
220 µm recommended
260 µm maximum
Solder mask opening:
300 µm minimum
Solder stencil opening:
220 µm recommended
255 µm ± 40
Figure 13. Marking
Dot
xx = marking
z = manufacturing location
yww = datecode
(y = year
ww = week)
x x z
y ww
5/7
Ordering information
LFTVS10-1F3
Figure 14. Flip Chip tape and reel specifications
Ø 1.55 ± 0.05
4.0 ± 0.1
3.5 ±- 0.05
8.0 ± 0.3
0.87
xxz
yww
xxz
yww
0.87
xxz
yww
xxz
yww
xxz
yww
xxz
yww
xxz
yww
2.0 ± 0.1
0.69 ± 0.05
User direction of unreeling
All dimensions in mm
Note:
1.75 ± 0.1
2.0 ± 0.05
0.20 ± 0.05
More information is available in the application notes:
AN2348: “400 µm flip chip: Package description and recommendations for use”
AN1751: "EMI Filters: Recommendations and measurements"
4
Ordering information
Table 3.
5
Order code
Marking
Package
Weight
Base qty
Delivery mode
LFTVS10-1F3
EN
Flip Chip
0.86 mg
10 000
Tape and reel (7”)
Revision history
Table 4.
6/7
Ordering information
Document revision history
Date
Revision
21-Nov-2008
1
Changes
Initial release.
LFTVS10-1F3
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