AOZ8904 Datasheet, PDF (1/11 Pages) Alpha & Omega Semiconductors – Ultra-Low Capacitance TVS Diode Array

AOZ8904
Ultra-Low Capacitance TVS Diode Array
General Description
The AOZ8904 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 AOZ8904 comes in a Halogen Free and RoHS
compliant SOT-23 and SC-70 packages. 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) ±24kV (air),
±24kV (contact)
– IEC 61000-4-5 (Lightning) 4A (8/20µs)
– Human Body Model (HBM) ±24kV
• 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
AOZ8904
Downstream
+5V
Ports
VBUS
D+
D-
GND
+5V
VBUS
RT
D+
RT
D-
GND
Figure 1. 2 USB High Speed Ports
Rev. 2.1 January 2011
www.aosmd.com
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