Rui Longyuan Electronics
Rui Longyuan Electronics
cn en
Rui Longyuan Electronics
Rui Longyuan Electronics
Choice of language
cn en


Circuit protection of LCD panel backlight inverter

Circuit protection for LCD modules


Design Notes: 

Protection application:

Generally, the data transmission rate of LCD modules is less than 20 Mbps, so a protection device with a capacitance value of less than 40 pF can be used. There is an ESD electrical hazard.

Solution description:

As shown on the left (above), discrete multi-layer varistors can be used for flexible layout. However, if the first consideration is to reduce the number of products or save board space, a transient suppression diode array is recommended.

Supporting solutions:

In addition to the recommendations above, Ruilon's MLV portfolio offers other solutions. For example, if the data transfer speed is fast (> 200 Mbps), it is recommended to use a PulseGuard device to ensure signal integrity.

Regulatory issues:

IEC 61000-4-2 is the standard specification most suitable for this interface. This test proves that the end product is not vulnerable to ESD.

Characteristics: Not applicable.

Application warning: Not applicable.