Texas Instruments AWR1843AOP EVM, Руководство пользователя, Страница: 6 / 29

2.2 PCB Storage and Handling Recommendations
This EVM contains components that can potentially be damaged by electrostatic discharge. Always transport
and store the EVM in its supplied ESD bag when not in use. Handle using an antistatic wristband. Operate on an
antistatic work surface. For more information on proper handling, refer to
SSYA010A .
2.3 Heat Sink and Temperature
Users are strongly encouraged to use the AWR1843AOPEVM with the heat sink installed. Due to the smaller
size of the AWR1843AOPEVM, it is likely to get warmer than other larger sized EVMs on the mmWave Radar
portfolioso care must be taken to ensure the junction temperature does not exceed 125°C.
Figure 2-4 shows
measurement of junction temperature versus duty cycle taken with and without the heat sink. As seen in the
plot, the EVM can safely operate up to 50% duty cycle with or without the heat sink. Although the heatsink is
not absolutely required, usage of the heat sink provides protection against exceeding the junction temperature at
higher duty cyles.
Figure 2-4. Duty Cycle versus Junction Temperature
When using the EVM for custom applications, the duty cycle can be adjusted as needed, the heat sink provided
with the kit can be used, customers can also design their own heat sink using better heat disippating materials or
one with more surface area such as addition of fins. The CAD drawing for the heat sink is shown in
Figure 2-5 .
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6 AWR1843AoP EVM User’s Guide SPRUIX8 – MARCH 2021
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