Rev. 2.0 December 2015 www.aosmd.com Page 1 of 7
AOZ8906
Ultra-Low Capacitance TVS Diode Array
General Description
The AOZ8906 is a transient voltage suppressor array
designed to protect high speed data lines such as HDMI,
USB 2.0, MDDI, SATA, and Gigabit Ethernet from
damaging ESD events.
This device incorporates eight surge rated, low
capacitance steering diodes and a 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.
The AOZ8906 provides a typical line to line capacitance
of 1pF making it ideally suited for HDMI 1.3 or USB 2.0
applications, such as Digital TVs,
DVD players, Computing, set-top boxes and MDDI
applications in mobile computing devices.
The AOZ8906 comes in RoHS compliant and halogen
free SOT23-6L package and is rated -40°C to +85°C
junction temperature range.
Features
ESD protection for high-speed data lines:
– IEC 61000-4-2, level 4 (ESD) immunity test
– ±30kV (air discharge) and ±30kV (contact discharge)
– IEC61000-4-4 (EFT) 40A (5/50nS)
– IEC61000-4-5 (Lightning) 7A (8/20µS)
– Human Body Model (HBM) ±30kV
Array of surge rated diodes with internal TVS diode
Protects four I/O lines
Low capacitance between I/O lines: 1pF
Low clamping voltage
Low operating voltage: 5.0V
Applications
HDMI, USB 2.0, MDDI, SATA ports
Monitors and flat panel displays
Set-top box
Video graphics cards
Notebook computers
Typical Application
Figure 1. USB High Speed Ports
+5V
R
T
AOZ8906
USB Host
Controller
Downstream
Ports
VBUS
D+
D-
GND
R
T
+5V
R
T
VBUS
D+
D-
GND
R
T
