Ultra-Low Capacitance TVS Diode Array
AOZ8900
General Description
The AOZ8900 is a transient voltage suppressor array
designed to protect high speed data lines from Electro
Static Discharge (ESD) and lightning.
This device incorporates eight surge rated, low
capacitance steering diodes and a Transient Voltage
Suppressor (TVS) in a single package. During transient
conditions, the steering diodes direct the transient to
either the positive side of the power supply line or to
ground. They may be used to meet the ESD immunity
requirements of IEC 61000-4-2, Level 4 (±15kV air,
±8kV contact discharge).
The AOZ8900 comes in RoHS compliant SOT-23
package. It is rated over a -40°C to +85°C ambient
temperature range.
Features
●
ESD protection for high-speed data lines:
–
Exceeds: IEC 61000-4-2 (ESD) ±15kV (air),
±8kV (contact)
–
IEC 61000-4-5 (Lightning) 5A (8/20µs)
–
Human Body Model (HBM) ±15kV
●
●
●
●
●
Small package saves board space
Low insertion loss
Protects four I/O lines
Low clamping voltage
Low operating voltage: 5.0V
Applications
●
●
●
●
USB 2.0 Power and Data Line Protection
Video Graphics Cards
Monitors and Flat Panel Displays
Digital Video Interface (DVI)
Typical Application
USB Host
Controller
R
T
R
T
VBUS
+5V
Downstream
Ports
VBUS
D+
D-
AOZ8900
GND
+5V
VBUS
R
T
R
T
D+
D-
GND
Figure 1. 2 USB High Speed Ports
Rev. 1.7 October 2008
www.aosmd.com
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