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VIPER0PHD Datasheet(PDF) 29 Page - STMicroelectronics

Part # VIPER0PHD
Description  Zero-power off-line high voltage converter
PDF  36 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VIPER0PHD Datasheet(HTML) 29 Page - STMicroelectronics

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VIPer0P
Application information
DocID028423 Rev 2
29/36
Table 10: Input power consumption
VIN
PIN in ZPM [mW]
PIN @ no-load [mW]
115 VAC
0.8
6.5
230 VAC
3.3
9.0
Figure 40: PIN versus VIN in ZPM and no load
Figure 41: PIN versus VIN in light load
5.4
Layout guidelines and design recommendations
A proper printed circuit board layout is essential for correct operation of any switch-mode
converter and this is true for the VIPer0P as well. The main reasons to have a proper PCB
layout are:
Provide clean signals to the IC, ensuring good immunity against external noises and
switching noises
Reduce the electromagnetic interferences, both radiated and conducted, to pass more
easily the EMC
When designing a SMPS using VIPer0P, the following basic rules should be considered:
Separating signal from power tracks: generally, traces carrying signal currents
should run far from others carrying pulsed currents or with quickly swinging voltages.
Signal ground traces should be connected to the IC signal ground, SGND, using a
GIPD160720151022MT
0
2
4
6
8
10
12
14
90
115
150
180
230
265
PIN [ mW]
V
IN [VAC]
no load
ZPM
GIPD160720151023MT
0
50
100
150
200
250
300
350
400
90
115
150
180
230
265
PIN [ mW]
V
IN [VAC]
POUT = 250 mW
POUT = 50 mW
POUT = 25 mW



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