The STEVAL-VP12201F evaluation board implements a 12 V - 5 W isolated flyback converter developed for general purpose applications supplied from 85 to 265 VAC.
The reference design is built around the new VIPer122LS offline high-voltage converter from the VIPerPlus family, with embedded 730 V Power MOSFET and PWM current-mode control.
The main characteristics of the evaluation board are its small size and minimal BOM, high efficiency, low stand-by consumption and tight line and load regulation over the entire input and output range. Extremely low consumption under no-load condition is ensured thanks to burst mode operation, which reduces the average switching frequency and minimizes all frequency related losses.
VIPer122LS operates at fixed frequency 60kHz with frequency jittering to meet the standards regarding electromagnetic disturbance.
Highly compact size
Stand-by mains consumption: < 30 mW at 230 VAC
Average efficiency: > 77%
Meets IEC55022 Class B conducted EMI requirments even with reduced EMI filter, thanks to the frequency jittering feature
Manufacturer | STMicroelectronics |
---|---|
Category | AC/DC and DC/DC Conversion |
Sub-Category | AC/DC SMPS - Single Output |
Eval Board Part Number | 497-STEVAL-VP12201F-ND |
Eval Board Supplier | STMicroelectronics |
Eval Board |
Normally In Stock
|
AC Voltage |
Universal (115 / 230V)
|
Outputs and Type |
1 Isolated
|
Voltage Out |
12 V
|
Current Out |
416 mA
|
Output Power |
5 W
|
Features |
Frequency Jitter for EMI
Light Load Mode Soft Start Thermal Protection |
Efficiency @ Conditions |
>77%, 115V in, 12V @ 10 ~ 325 mA
>75%, 230V in, 12V @ 15 ~ 416 mA |
No-load Input Power @ Voltage |
<21 mW @ 115 VAC
<30 mW @ 230 VAC |
Switching Frequency |
60 kHz
|
Internal Switch |
Yes
|
Component Count + Extras |
26 + 2
|
Voltage In |
85 ~ 265 VAC
|
Design Author |
STMicroelectronics
|
Application / Target Market |
Power: AC Adapters
Power: Auxiliary Power Supply Power: Industrial Power White Goods |
Main I.C. Base Part |
VIPer122LS
|
Date Created By Author | 2020-10 |
Date Added To Library | 2021-02 |