LRC LESDA6V1LT1G Dual transil array for esd protection Datasheet

LESHAN RADIO COMPANY, LTD.
Dual transil array for ESD protection
General Description
The LESDAxxxLT1G is a dual monolithic voltage
suppressor designed to protect components which
are connected to data and transmission lines against
ESD. It clamps the voltage just above the logic level
supply for positive transients, and to a diode drop
below ground for negative transients. It can also
work as bidirectionnal suppressor by connecting
only pin1 and 2.
LESDAXXXLT1G
3
1
2
SOT– 23
Applications
z Computers
z Printers
z Communication systems
It is particulary recommended for the RS232 I/O
port protection where the line interface withstands
only with 2kV ESD surges.
Features
z
2 Unidirectional Transil functions
z
z
z
Low leakage current: IR max< 20 μA at VBR
3 00W peak pulse power(8/20μs)
High ESD protection level: up to 25 kV
Benefits
z
z
z
High ESD protection level
up to 25 kV. High integration.
Suitable for high density boards.
Complies with the following standards
IEC61000-4-2 Level 4
MIL STD 883c - Method 3015-6 Class 3
(Human Body Model)
Absolute Ratings (Tamb=25°C )
Symbol
Parameter
Value
Units
PPP
Peak Pulse Power (tp = 8/20μs)
300
W
TL
Maximum lead temperature for soldering during 10s
260
°C
Tstg
Storage Temperature Range
-55 to +15
°C
Top
Operating Temperature Range
-40 to +125
°C
Tj
Maximum junction temperature
150
°C
Electrostatic discharge
VPP
MIL STD 883C -Method 3015-6
25
IEC61000-4-2 air discharge
16
IEC61000-4-2 contact discharge
9
kv
1/5
LESHAN RADIO COMPANY, LTD.
LESDAXXXLT1G
Electrical Parameter
Symbol
Parameter
VRM
Stand-off voltage
VBR
Breakdown voltage
VCL
Clamping voltage
IRM
Leakage current
IPP
Peak pulse current
αT
Voltage temperature coefficient
VF
Forward voltage drop
C
Capacitance
Rd
Dynamic resistance
Electrical Characteristics
Part Numbers
VBR
VF
IR
VRM
IRM
Rd
αT
C
Typ.(1)
Max.(2)
Typ. 0v bias
Min.
Max.
v
v
mA
v
µA
v
mA
mΩ
10-4/°C
pF
LESDA5V3LT1G
5.3
5.9
1
3
2
1.25
200
280
5
220
LESDA6V1LT1G
6.1
7.2
1
5.25
20
1.25
200
350
6
140
LESDA14V2LT1G
14.2
15.8
1
12
5
1.25
200
650
10
90
25
30
1
24
1
1.2
10
1000
10
50
LESDA25LT1G
1.Square pulse IPP=15A,tp=2.5µs
Max.
IF
2.△VBR=aT*(Tamb-25°C)*VBR(25°C)
Typical Characteristics
Fig1.Peak power dissipation versus
Initial junction temperature
Fig2. Peak pulse power versus exponential
pulse duration(Tj initial=25°C)
2/5
LESHAN RADIO COMPANY, LTD.
LESDAXXXLT1G
Fig3. Clamping voltage versus peak
pulse current(Tj initial=25°C,
rectangular Waveform,tp=2.5μs)
Fig4. Capacitance versus reverse
Applied voltage
Fig5.Relative variation of leakage current
Versus junction temperature
Fig6. Peak forward voltage drop versus
peak forward current
Application Note
Electrostatic discharge (ESD) is a major cause of failure in electronic systems. Transient Voltage
Suppressors (TVS) are an ideal choice for ESD protection. They are capable of clamping the incoming transient
to a low enough level such that damage to the protected semiconductor is prevented.
Surface mount TVS arrays offer the best choice for minimal lead inductance. They serve as parallel
protection elements, connected between the signal line to ground. As the transient rises above the operating
voltage of the device, the TVS array becomes a low impedance path diverting the transient current to ground.
The ESDAxxL array is the ideal board evel protection of ESD sensitive semiconductor components.
The tiny SOT23 package allows design flexibility in the design of high density boards where the space
saving is at a premium. This enables to shorten the routing and contributes to hardening againt ESD.
3/5
LESHAN RADIO COMPANY, LTD.
LESDAXXXLT1G
4/5
LESHAN RADIO COMPANY, LTD.
LESDAXXXLT1G
SOT-23
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M,1982
2. CONTROLLING DIMENSION: INCH.
A
L
3
1
V
2
A
B
C
D
G
H
J
G
C
D
MIN
0.1102
0.0472
0.0350
0.0150
0.0701
0.0005
INCHES
MAX
0.1197
0.0551
0.0440
0.0200
0.0807
0.0040
0.0034
0.0140
0.0350
0.0830
0.0177
0.0070
0.0285
0.0401
0.1039
0.0236
DIM
B S
H
K
J
K
L
S
V
MILLIMETERS
MIN
MAX
2.80
3.04
1.20
1.40
0.89
1.11
0.37
0.50
1.78
2.04
0.013
0.100
0.085
0.35
0.89
2.10
0.45
0.177
0.69
1.02
2.64
0.60
0.037
0.95
0.037
0.95
0.079
2.0
0.035
0.9
0.031
0.8
inches
mm
5/5
LESHAN RADIO COMPANY, LTD.
EMBOSSED TAPE AND REEL DATA
FOR DISCRETES
T Max
Outside Dimension
Measured at Edge
13.0mm ± 0.5mm
1.5mm Min
(.512 ±.002’’)
(.06’’)
A
50mm Min
(1.969’’)
20.2mm Min
(.795’’)
Full Radius
G
Inside Dimension
Measured Near Hub
Size
A Max
G
8 mm
330mm
(12.992’’)
8.4mm+1.5mm, -0.0
(.33’’+.059’’, -0.00)
T Max
14.4mm
(.56’’)
Reel Dimensions
Metric Dimensions Govern –– English are in parentheses for reference only
Storage Conditions
Temperature: 5 to 40 Deg.C (20 to 30 Deg. C is preferred)
Humidity: 30 to 80 RH (40 to 60 is preferred )
Recommended Period: One year after manufacturing
(This recommended period is for the soldering condition only. The
characteristics and reliabilities of the products are not restricted to
this limitation)
LESHAN RADIO COMPANY, LTD.
Shipment Specification
CPN
LABEL
LABEL
LABEL
Dim(Unit:mm)
195mm*195mm*150mm
10 Reel
3000PCS/Reel
8000PCS/Reel (SOT-723,SOD-723)
10Reel/Inner Box
30KPCS/Inner Box
80KPCS/Inner Box (SOT-723,SOD-723)
Dim(Unit:mm)
LABEL
460mm*400mm*420mm
MARK
乐山无线电股份有限公司
Leshan Radio Company,Ltd.
12 Inner Box/Carton
360KPCS/Carton
960KPCS/Carton (SOT-723,SOD-723)
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