How do I choose a TV diode?
Guidelines for Selecting a TVS Diode
- Select a diode with a standoff voltage that is higher than the normal operating voltage.
- Verify that the specified peak current exceeds the expected peak current.
- Calculate the maximum clamping voltage (VCL) of the selected diode.
How do I choose a TVS diode for ESD protection?
To obtain good ESD protection performance, select a TVS diode with the clamp voltage higher than the line voltage. Select a TVS diode with a guaranteed ESD tolerance level higher than the system’s ESD immunity requirement.
When would you use a TVS diode?
The TVS diodes fast response time and low clamping voltages make them ideal for use as board level protectors for semiconductors and other sensitive components. Applications include data and signal lines, microprocessors & MOS memory, AC power lines, and telecommunication equipment.
How do I choose a ESD diode?
What is the difference between TVS and ESD diode?
However, there is a clear distinction. TVS diodes are particularly efficient in countering medium-voltage high-energy pulses that last milliseconds, in comparison to ESD protection devices which address higher voltage pulses of lower energy and shorter duration.
What should the standoff voltage be for a TVS diode?
Standoff voltage must be greater than normal operating voltage, so assuming L+ = 24V and allowing for a 20% tolerance over normal operating conditions, the maximum normal operating voltage is 24V x 1.2 = 28.8V. To ensure a reasonable safeguard, select a TVS diode with V RM = 33V, such as the STMicroelectronics ® SMAJ33A.
How to select a TVS diode for Maxim’s Io?
To select a TVS diode, follow these steps: Select a diode with a standoff voltage that is higher than the normal operating voltage. Ensure that the TVS diode maximum clamping voltage is less than the abs max rating of all the devices on the line to be protected.
How to use TVS diodes for transient voltage suppresison?
The primary way to protect a circuit from overvoltage is to place these TVS devices in parallel with the circuit. There are many types of TVS device that can be used for Transient Voltage Suppression namely Metal Oxide Varistor, TVS Diode, Zener Diode or a Bypass Capacitor.
What are the advantages of using a TVS diode?
One advantage of TVS diodes is their ability to continue conducting electric current even after the voltage flowing across the diodes significantly drops below the preset breakdown voltage level. Generally, any circuit protective device will have a preset breakdown voltage level. This is the control level of voltages in electrical circuits.