Feature: Sustainable Solutions
Figure 3. The MAX16169 and MAX16163/MAX16164 block diagrams
including lightning protection. To meet this requirement, the released product must undergo rigorous testing against the IEC 61000-4-2 ESD standard that simulates real- world transient conditions. While both the HBM and IEC 61000-4-2 ESD test methods simulate a charged person discharging into an electronic system, the IEC 61000-4-2 standard differs from the component-level ESD in a number of ways. Table 1 shows that the peak current in an
HBM test is 5.6 times lower than the pulse current in IEC 61000-4-2 testing. In terms of the number of strikes, the component level-HBM test considers only one positive and one negative strike, whereas the system-level IEC 61000-4-2 requires a minimum of 10 positive and 10 negative strikes for an IC to pass. Tis means that system engineers should consider much higher HBM rated components to pass
a corresponding IEC 61000-4-2 rating. For example, a system with an HBM ESD rating of +15 kV, such as the MAX16150, may meet the IEC 61000-4-2 rating of ±2 kV. Similarly, components with a +40 kV HBM ESD rating, such as the MAX16163/ MAX16164 and the new MAX16169, can assist in achieving ±6 kV IEC 61000-4-2 compliance. A higher ESD rating indicates greater
robustness against harsher environments. Tis not only enhances a system’s reliability by minimizing operational interruption in the field but also reduces the likelihood of failure, thus frequent product replacements. ADI’s on/off controllers and battery freshness seals feature ESD-protection structures on all pins, safeguarding against electrostatic discharges during handling and assembly. Additionally, an extra level of protection
is implemented at the switch input. Te high HBM ESD ratings of these seals contribute to system designs meeting IEC 61000-4-2 compliance.
Conclusion Key to the customers’ ongoing energy efficiency efforts is the use of components that help reduce energy waste from production in the factory up to operation in the field. With this, this article showed how ADI’s push-button on/off controller and battery freshness seal products help reduce energy waste through the standby mode and sleep mode, save production energy and PCB footprint through their integrated features, and add robustness in the field through higher ESD ratings.
Analog Devices:
www.analog.com
Figure 4. Discrete solution vs. integrated solution using the MAX16163/MAX16164
34 October 2024
www.electronicsworld.co.uk
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