UM1542 datasheet(37/43 Pages) STMICROELECTRONICS

Part #	UM1542

Description	Cold thermostat kit based on AC switches and the STM8S003F3

PDF	43 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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37 / 43 page

UM1542

Procedure to apply IEC 61000-4-4 burst test

Doc ID 023172 Rev 1

37/43

The generic graph of a fast transient burst is shown in Figure 17.

Figure 17.

General graph of a fast transient/burst

The board withstands up to 4.5 kV and 4.3 kV, positive and negative pulses, respectively at

5 kHz, and up to 3.1 kV, positive and negative pulses, at 100 kHz. At higher voltages, up to

5 kV (at 5 kHz and 100 kHz) temporary disturbance of performance, which ceased after the

fast burst voltage ceased, was detected. The equipment under test recovered its normal

performance, without operator intervention, after the disturbance ceased.

Note:

Because the control firmware loaded in the STEVAL-IHT001V2 board in not optimized for

the IEC 61000-4-4 burst test, separate firmware which implements a smart reset procedure

(without GUI functions) was used to improve the immunity of the board. This firmware is

available on the CD-ROM included with the STEVAL-IHT001V2.

UM1542 Datasheet(PDF) 37 Page - STMicroelectronics