AOZ8844 Overview
The AOZ8844 is a transient voltage suppressor array designed to protect high speed data lines such as HDMI, USB 3.0, 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.
AOZ8844 Key Features
- ESD protection for high-speed data lines
- IEC 61000-4-2, level 4 (ESD) immunity test
- Air discharge: ±20 kV; contact discharge: ±15 kV
- IEC61000-4-4 (EFT) 40 A (5/50 ns)
- IEC61000-4-5 (Lightning) +5 A (8/20 µs)
- Human Body Model (HBM) ±24 kV
- Array of surge rated diodes with internal TVS diode
- Small package saves board space
- Protects four I/O lines
- Low capacitance between I/O lines: 0.26 pF
AOZ8844 Applications
- ESD protection for high-speed data lines