PSMF24-LF

更新时间： 2024-02-13 19:13:50

品牌	Logo	应用领域
PROTEC		电视
页数	文件大小	规格书
5页	96K
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PSMF24-LF 数据手册

PSMF05

thru

PSMF24

APPLICATION NOTE

The PSMF Series are TVS arrays designed to protect I/O or data lines from the damaging effects of ESD or EFT. This product provides unidirectional

protection, with a surge capability of 200 Watts P_PPper line for an 8/20µs waveform and ESD protection > 25 kilovolts.

UNIDIRECTIONAL COMMON-MODE CONFIGURATION (Figure 1)

The PSMF Series provides up to four (4) lines of protection in a common-mode configuration as depicted in Figure 1.

Circuit connectivity is as follows:

✔

I/O 1 is connected to Pin 1.

I/O 2 is connected to Pin 3.

I/O 3 is connected to Pin 4.

I/O 4 is connected to Pin 5.

Pin 2 is connected to ground.

Figure 1 - Unidirectional Configuration

Common-Mode I/O Port Protection

I/O 4

I/O 3

CIRCUIT BOARD LAYOUT RECOMMENDATIONS

Circuit board layout is critical for Electromagnetic

Compatibility (EMC) protection. The following

guidelines are recommended:

✔

The protection device should be placed near the

input terminals or connectors, the device will

divert the transient current immediately before it

can be coupled into the nearby traces.

✔

The path length between the TVS device and

the protected line should be minimized.

I/O 2

I/O 1

All conductive loops including power and ground

loops should be minimized.

The transient current return path to ground

should be kept as short as possible to reduce

parasitic inductance.

✔

Ground planes should be used whenever

possible. For multilayer PCBs, use ground vias.

05123.R9 10/05

www.protekdevices.com

1 2 345

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