TPSMB22A

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TVS (Transient Voltage Suppressors, TVS) diodes are voltage-dependent devices used to protect electrical and electronic circuitry from damage caused by overvoltage events. There are two main types of voltage-dependent devices: unidirectional (VDRs) and bidirectional (TVS diodes). The TPSMB22A is a bidirectional TVS diode that offers two levels of protection.

In most overvoltage events, the direction of the current flow is unpredictable, which means the use of unidirectional devices may not be sufficient to protect the device. In addition, the clamping voltage (or “onset” voltage) of these unidirectional devices may not be sufficient to provide an adequate protection level. TVS diodes are designed to provide bidirectional protection and a higher clamping voltage than unidirectional devices.

The TPSMB22A is a bidirectional TVS diode with a breakdown operating voltage of 22 volts. The device is designed for overvoltage protection in systems operating at up to 22 volts, including automotive, industrial and consumer systems. It is designed to be used in series with the device being protected to provide an additional layer of protection in case of an over voltage event.

The TPSMB22A has two different levels of protection: the normal operating voltage and the crowbar current. The normal operating voltage for the TPSMB22A is typically 12 or 16 volts. If the input voltage exceeds this level, the device will start to conduct. This increase in current causes the voltage to drop, protecting the device from an over voltage event.

The crowbar current is a surge of current that quickly rises in magnitude over a short time period. This surge of current is designed to reduce the input voltage to a safe level faster than the normal operating current. The TPSMB22A can handle peak crowbar currents of up to 30A.

In summary, the TPSMB22A is a bidirectional TVS diode designed for overvoltage protection in systems operating at up to 22 volts. It has two levels of protection: the normal operating voltage and the crowbar current. The device is designed to be used in series with the device being protected to provide an additional layer of protection in case of an over voltage event.

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