AOZ8234 Datasheet, PDF (1/6 Pages) Alpha & Omega Semiconductors – Four-line TVS Diode

AOZ8234
Four-line TVS Diode
General Description
The AOZ8234 is a transient voltage suppressor diode
array designed to protect data lines from high transient
conditions and ESD. This state-of-the-art device utilizes
AOS leading edge Trench Vertical Structure [TVS]² ™
technology for superior clamping performance.
This device incorporates four TVS diodes in a single
package. Due to the flexibility of the design, the package
can be configured as a two channel bidirectional TVS
array. During transient conditions, the TVS diodes direct
the transient to ground. They may be used to meet the
ESD immunity requirements of IEC 61000-4-2, Level 4
(±15 kV air, ±8 kV contact discharge).
The AOZ8234 comes in an RoHS compliant DFN
package and is rated over a -40 °C to +85 °C ambient
temperature range.
The very small 1.45 mm x 1.0 mm x 0.55 mm
DFN package makes it ideal for applications where
PCB space is a premium. The small size and high ESD
protection makes it ideal for protecting high speed video
and data communication interfaces.
Features
z ESD protection for high-speed data lines:
– Exceeds: IEC 61000-4-2 (ESD) ±18 kV (air),
±18 kV (contact)
– Human Body Model (HBM) ±30 kV
z Trench Vertical Structure [TVS]² ™ based technology
used to achieve excellent ESD clamping performance
z Small package saves board space
z Low insertion loss
z Protects four unidirectional or two bidirectional
I/O lines
z Low clamping voltage
z Low operating voltage: 5.0V
z Green product, Pb-free
Applications
z Portable handheld devices
z Keypads, data lines
z Notebook computers
z Digital cameras
z Portable GPS
z MP3 players
Typical Applications
I/O1
I/O2
I/O3
I/O4
Unidirection Protection of Four Lines
I/O1
I/O2
Pin Configuration
CH1 1
6 CH4
VN 2
5 N/C
CH2 3
4 CH3
Top View
Bidirection Protection of Two Lines
Rev. 1.0 July 2011
www.aosmd.com
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