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VIPER0PLDTR データシート(PDF) 22 Page - STMicroelectronics

部品番号 VIPER0PLDTR
部品情報  Zero-power off-line high voltage converter
PDF  36 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VIPER0PLDTR データシート(HTML) 22 Page - STMicroelectronics

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General description
VIPer0P
22/36
DocID028423 Rev 2
In case of ZPM management by MCU only (see Figure 30: "ZPM fully managed by MCU")
the MCU shuts down the SMPS by pulling low OFF and wakes it up as well by pulling low
ON. Two of its GPIOs are used. The MCU is powered also during ZPM using the resistive
pull-up available at ON (RON
, 45 kΩ typical), provided that it is rated for 3.3 V supply
voltage, and equipped with an ultra-low consumption Standby Mode.
Since in ZPM the device is supplied with extremely low current, it is naturally prone to pick
up noise. If the device is required to work in a noisy environment, it is recommended to
connect a film capacitor (tens to some hundreds pF) across ON and OFF versus SGND. If
the device is disconnected from the mains or there is a mains interruption while in ZPM, the
information in the logic is lost. When the input source is applied again, the IC will be
restarted in normal mode.
The ultimate aim of ZPM function is to enable the realization of PSUs able to comply with
the European regulation 1275/2008 as far as the standby and off-mode power consumption
of appliances is concerned. To meet this target a careful system-level design is required.
The total input consumption is therefore reduced to the residual consumption lower than 4
mW at 230 VAC that can be rounded to zero based on the IEC62301 that sets to 10 mW the
minimum accuracy of the standby power measurements.
Figure 29: ZPM managed in mixed mode
Figure 30: ZPM fully managed by MCU
VIPer0P
OFF
MCU
V
AUX
GPIO
ON
Power-ON
Active low output
C
B
GIPD280420151131MT
VIPer0P
Active low
outputs
ON
V
AUX
OFF
Power-ON/OFF
45 k
W
4 V
MCU
GPIO
GPIO
C
B
GIPD250820151513FSR



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