Texas Instruments TIDA-010046, Design Manual

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Hardware, Software, Testing Requirements, and Test Results
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38 TIDUES1A – October 2019 – Revised February 2020
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EMC Compliant 10/100-Mbps Ethernet PHY Reference Design With IEEE
802.3at Type-1 (
≤ 12.95 W) PoE-PD
3.2.2.3.2.1 ESD IEC-61000-4-2 ESD Test
Figure 37 shows the ESD test setup. The IEC 610004-2 ESD test simulates an electrostatic discharge of
an operator directly onto an adjacent electronic component. An electrostatic charge usually develops in
low relative humidity and on low-conductivity carpets, or vinyl garments. To simulate a discharge event, an
ESD generator applies ESD pulses to the DUT, which can happen through direct contact with the DUT
(contact discharge), or through an air-gap (air-discharge). This is applied across signal inputs only. A
series of 10 negative and positive pulses were applied to the DUT in both power-on and power-off
conditions. The ESD strikes were given to the RJ45 connector metallic body and its pins. After the test,
the DUT was verified for functionality. The test results show the TIDA-010046 reference design can
withstand the required discharge (see
Table 15 ). There were no signs of any permanent failure or
damage. The DUT was found working normal as intended before and after the ESD strikes.
Figure 37. IEC61000-4-2 ESD Test Setup for TIDA-010046
Table 15. ESD Test Summary
DISCHARGE TYPE LEVEL TEST CONDITION CRITERIA | RESULT
IEC61000-4-2 ESD air-discharge ±15 kV DUT is powered-on
10 strikes of each polarity on RJ45 connector body B | Pass
IEC61000-4-2 ESD air-discharge ±15 kV DUT is powered-off
10 strikes of each polarity on RJ45 connector body B | Pass
IEC61000-4-2 ESD air-discharge ±15 kV DUT is powered-on
10 strikes of each polarity on pins B | Pass
IEC61000-4-2 ESD air-discharge ±15 kV DUT is powered-off
10 strikes of each polarity on pins B | Pass
IEC61000-4-2 ESD contact
discharge ±12 kV DUT is powered-on
10 strikes of each polarity on RJ45 connector body B | Pass
IEC61000-4-2 ESD contact
discharge ±12 kV DUT is powered-off
10 strikes of each polarity on RJ45 connector body B | Pass
IEC61000-4-2 ESD contact
discharge ±12 kV DUT is powered-on
10 strikes of each polarity on pins B | Pass
IEC61000-4-2 ESD contact
discharge ±12 kV DUT is powered-off
10 strikes of each polarity on pins B | Pass