ESDA25LY(2010) データシートの表示（PDF） - STMicroelectronics
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ESDA25LY Datasheet PDF : 10 Pages
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ESDA25LY
Automotive dual Transil™ array for ESD protection
Features
■ 2 Unidirectional Transil functions
■ Low leakage current: 1 µA @ 24 V
■ 300 W peak pulse power (8/20 µs)
Benefits
■ High ESD protection level: up to 25 kV
■ High integration
■ Suitable for high density boards
Complies with the following standards
■ IEC 61000-4-2 level 4
– 15 kV (air discharge)
– 8 kV (contact discharge)
■ MIL STD 883G - Method 3015-7 Class 3B
– (human body model)
Applications
Where transient overvoltage protection in ESD
sensitive equipment is required, such as :
■ Computers
■ Printers
■ Communication systems and cellular phones
It is particulary recommended for the RS232 I/O
port protection where the line interface withstands
only with 2 kV ESD surges.
3
2
1
SOT23-3L
Figure 1. Functional diagram
1
3
2
Description
The ESDA25LY 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.
February 2010
TM: Transil is a trademark of STMicroelectronics.
A.S.D.™= Application Specific Discretes
Doc ID 16914 Rev 1
1/10
www.st.com
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