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STMicroelectronics |
®
Application Specific Discretes
A.S.D.
ESDAxxL
DUAL TRANSIL ARRAY
FOR ESD PROTECTION
APPLICATIONS
Where transient overvoltage protection in ESD
www.DataSheet4Us.ceonmsitive equipment is required, such as :
- COMPUTERS
- PRINTERS
- COMMUNICATION SYSTEMS
It is particulary recommended for the RS232 I/O
port protection where the line interface withstands
only with 2kV ESD surges.
FEATURES
n 2 UNIDIRECTIONAL TRANSIL FUNCTIONS.
n LOW LEAKAGE CURRENT : IR max. < 20µA at
VBR.
n 300 W PEAK PULSE POWER (8/20µs)
DESCRIPTION
The ESDAxxL 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.
SOT23
FUNCTIONAL DIAGRAM
BENEFITS
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)
Marchr 2000 - Ed: 4A
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ESDAxxL
ABSOLUTE MAXIMUM RATINGS (Tamb = 25°C)
Symbol
Parameter
VPP Electrostatic discharge
MIL STD 883C - Method 3015-6
IEC61000-4-2 air discharge
IEC61000-4-2 contact discharge
PPP Peak pulse power (8/20 µs)
Tstg
www.DataSheet4U.com Tj
TL
Storage temperature range
Maximum junction temperature
Maximum lead temperature for soldering during 10s
Top Operating temperature range
note 1: Evolution of functional parameters is given by curves.
Value
25
16
9
300
- 55 to + 150
150
260
- 40 to + 125
Unit
kV
W
°C
°C
°C
°C
ELECTRICAL CHARACTERISTICS (Tamb = 25°C)
Symbol
VRM
VBR
VCL
IRM
IPP
αT
C
Rd
VF
Parameter
Stand-off voltage
Breakdown voltage
Clamping voltage
Leakage current
Peak pulse current
Voltage temperature coefficient
Capacitance
Dynamic resistance
Forward voltage drop
I
IF
VBR
VRM
VF
I RM
Slope: 1
Rd
I PP
V
Types
VBR @
min. max.
IR
V V mA
ESDA5V3L 5.3
5.9
1
ESDA6V1L 6.1
7.2
1
ESDA14V2L 14.2 15.8
1
ESDA25L 25 30 1
note 1 : Square pulse Ipp = 15A, tp=2.5µs.
note 2 : ∆ VBR = αT* (Tamb -25°C) * VBR (25°C)
IRM @ VRM
max.
µA V
23
20 5.25
5 12
1 24
Rd
typ.
note 1
mΩ
280
αT C
max.
typ.
note 2 0V bias
10-4/⊃C
pF
5 220
350 6 140
650 10
90
1000
10
50
VF @ IF
max.
V mA
1.25 200
1.25 200
1.25 200
1.2 10
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