Wearable devices come in a wide variety of forms, such as sports bracelets , smart watches, helmets, smart wear, and more, offering a wide variety of experiences. Undoubtedly, more and more users are paying attention to wearable devices, and the whole market has great potential. This also prompts digital manufacturers to regard it as a new profit point. Various new devices are leaping out and aiming at users' wallets. Constant bombing. It is foreseeable that there will be a variety of products and trials coming out at least in the next three to five years to form a market with the following characteristics:
The market is rapidly innovating, and consumer demand is changing at the same rate;
New types of products appear and develop, and sometimes they eventually disappear;
There are many competing products, but fail to form a standard feature set;
Even if there are only a few standardized architectures or interface standards.
While wearable devices have received much attention, the quality of their products has also been monitored by the entire market. The lack of standard architectures, feature sets, and specialized chips for wearable devices poses unprecedented challenges for mobile consumer electronics designs that face tight cost, power, and size constraints. In addition to battery power consumption and volume, anti-noise, anti-jamming, waterproof, anti-drop and anti-human electrostatic damage capabilities have become the focus of design developers. In terms of improving the reliability-related specifications such as anti-static ability of the system, it is possible to avoid premature damage of the wearable device, in addition to improving product quality evaluation, and reducing the cost of after-sales repair.
The consumer wears directly through contact with the skin, and the great exposure risk is static electricity generated by the user. Static electricity can be said to be ubiquitous, and even the simplest human contact can generate short-lived electrostatic discharge (ESD). Without proper protection, no sensor circuitry, batteries, charging interfaces, buttons, or data inputs and outputs can provide ESD with access to the wearable device, causing irreparable damage to the electronics.
Choose the appropriate static suppressor
1, lower capacitance to avoid interference with high-speed data transmission
ESD protection devices must provide circuit protection that does not interfere with everyday functions. For example, on a radio interface (such as Bluetooth or WLAN) or a wired port like USB 2.0, the ESD protector does not cause signal distortion or loss of data signal strength. To ensure signal integrity, the capacitance of the ESD protector must be minimized without compromising the level of protection.
2. Protect the most sensitive circuit with a lower clamping voltage
If an ESD discharge event occurs, the main job of the ESD protector is to transfer and dissipate the ESD transient voltage as much as possible. This feature is improved by reducing the state resistance or dynamic resistance when the electrostatic pulse is applied, and the ESD protector carries more inrush current than the protected circuit. By doing so, it reduces the electrostatic discharge pressure on the integrated circuit and ensures its survival.
3, smaller size to accommodate the available space of the limited board in the wearable device
Regardless of how high performance the protection device operates, it is not useful if it does not adapt to the specific application environment. Wearable devices become thinner and smaller, and boards have minimal space available to accommodate ESD protection. Separation device protection schemes are the best way to address this potential design challenge because they give design engineers the flexibility of a special board layout.
Shuokai Electronics, which has decades of experience in antistatic protection components ESD static suppressor, has developed ESD electrostatic discharge diodes with lower capacitance and smaller package, which basically meet the electrostatic protection requirements of wearable devices and ensure the static electricity of wearable devices. The effectiveness of the protection program.
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