VIPER012XS datasheet(29/36 Pages) STMICROELECTRONICS

Part #	VIPER012XS

Description	Energy saving off-line high voltage converter

PDF	36 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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29 / 36 page

VIPer01

Application information

DocID028751 Rev 1

29/36

5.3

Energy saving performance

The device allows designing applications to be compliant with the most stringent energy

saving regulations. In order to show the typical performance is achievable, the active mode

average efficiency and the efficiency at 10% of the rated output power of a single output

flyback converter have been measured and are reported in Table 9: "Power supply

efficiency, VOUT = 5 V". In addition, no-load and light load consumptions are shown in

Figure 39: "PIN versus VIN in no-load, VOUT = 5 V" and Figure 40: "PIN versus VIN in light

load, VOUT = 5 V".

Table 9: Power supply efficiency, VOUT = 5 V

VIN

10 % output load

efficiency [%]

Active mode average

efficiency [%]

Pin @ no-load [mW]

115 VAC

72.2

74.6

4.5

230 VAC

65.1

75.1

8.6

Figure 39: PIN versus VIN in no-load, VOUT = 5 V

Figure 40: PIN versus VIN in light load, VOUT = 5 V

VIPER012XS Datasheet(PDF) 29 Page - STMicroelectronics