AN2950 datasheet(25/37 Pages) STMICROELECTRONICS

Part #	AN2950

Description	This document describes

PDF	37 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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25 / 37 page

AN2950

Testing the board

Doc ID 15494 Rev 1

25/37

The output OVP threshold has been measured in different line/load conditions and the

results are reported in Table 18.

In Figure 41, the same results – normalized with respect to the calculated VOUT_OVP

threshold (7.2 V) – are plotted in a graphic format to show that in any case the actual

threshold is within some percentage of tolerance of the expected value.

Figure 41.

Normalized output OVP threshold vs load

Figure 39.

Auto-restart mode of the

overvoltage protection

Figure 40.

Auto-restart mode of the

overvoltage protection (zoom)

Table 18.

Output overvoltage threshold at different input/output conditions

VOUT_OVP [V]

VIN [VAC]

115

230

265

IOUT [A]

0.01

7.15

7.16

7.26

7.3

0.5

7.277.267.27

7.31

7.227.257.34

7.4

7.3

7.32

7.4

7.41

AN2950 Datasheet(PDF) 25 Page - STMicroelectronics