Texas Instruments TPD1E04U04, Руководство пользователя

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Introduction
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2 SLVUAN8 – April 2016
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Copyright © 2016, Texas Instruments Incorporated
TPD1E04U04 Evaluation Module
1 Introduction
Texas Instrument’s TPD1E04U04 evaluation module helps designers evaluate the operation and
performance of the TPD1E04U04 device. The TPD1E04U04 is a unidirectional TVS ESD protection diode
for HDMI 2.0 and USB 3.0 high speed data line protection. The TPD1E04U04 is rated to dissipate ESD
strikes at the maximum level specified in the IEC 61000-4-2 international standard (Level 4).
The EVM contains six TPD1E04U04s. Five TPD1E04U04s (D1 – D5) are configured with test points for
striking ESD to the protection pins. One TPD1E04U04 (D6) is configured with 2 SMA (J1 and J2)
connectors for 2-port analysis with a vector network analyzer. TPD1E04U04 (D6) can also be used for
capturing clamping waveforms with an oscilloscope during an ESD test. Caution must be taken when
capturing clamping waveforms during an ESD event so as not to damage the oscilloscope. A proper
procedure is outlined in
Section 3.3.1 .
2 Definitions
Contact Discharge — a method of testing in which the electrode of the ESD simulator is held in contact
with the device-under-test (DUT).
Air Discharge — a method of testing in which the charged electrode of the ESD simulator approaches
the DUT, and a spark to the DUT actuates the discharge.
ESD Simulator — a device that outputs IEC 61000-4-2 compliance ESD waveforms shown in Figure 1
with adjustable ranges shown in Table 1 and Table 2 .
IEC 61000-4-2 has 4 classes of protection levels. Classes 1 – 4 are shown in Table 1 . Stress tests
should be incrementally tested to level 4 as shown in Table 2 until the point of failure. If the DUT
does not fail at 8-kV, testing can continue in 2-kV increments until failure.
Table 1. IEC 61000-4-2 Test Levels
Contact Discharge Air Discharge
Class Test Voltage [± kV] Class Test Voltage [± kV]
1 2 1 2
2 4 2 4
3 6 3 8
4 8 4 15
Table 2. Waveform Parameters in Contact Discharge Mode
Stress Level Step Simulator Voltage
[kV]
Ipeak ±15% [A] Rise Time ±25%
[nS]
Current at 30 ns
±30% [A]
Current at 60 ns
±30% [A]
1 2 7.5 0.8 4 2
2 4 15 0.8 8 4
3 6 22.5 0.8 12 6
4 8 30 0.8 16 8