ESDR0502N
APPLICATION INFORMATION
Protecting USB 2.0 Interfaces
The USB interface consists of Data (D ? and D+) lines and
a 5.5 V bus, which are all vulnerable to ESD and cable
discharge events. Each ESDR0502N device will protect the
four USB connections (V CC , D+, D ? , and GND) of one USB
port. When the voltage on the data lines exceed the bus
voltage (plus one diode drop), the internal rectifiers are
forward biased conducting the transient current away from
the protected controller chip. The TVS diode suppresses
ESD strikes directly on the voltage bus and directs the surge
to ground, protecting both the power and data pins.
USB Controller
USB Connector
1
6
VBUS
D+
D ?
2
3
5
4
D+
D ?
ESDR0502N
GND
Figure 6.
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相关代理商/技术参数
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