STEVAL-ILL076V2 Datasheet, PDF (1/7 Pages) STMicroelectronics – Short circuit protection with auto restart

STEVAL-ILL076V2
18 W wide input range ultra slim flyback converter using
HVLED001A quasi resonant flyback controller and STD8N80K5
Data brief
Features
 Input voltage: Vin: 90 – 264 Vrms, f: 45 – 66
Hz
 Output power:
 18 W at wide input range
 40 W at European input range
 Output voltage: 56 V ±5 %
 High power factor, low THD
 No-load: better than 400 mW at 230 Vin
 Full load efficiency: greater than 92 %
 Short circuit protection with auto restart
 EMI: pre-compliant with EN55022 (B) limits
 Safety: complies with EN60950
 Dimensions: 183 mm x 28 mm x 17 mm
 PCB: single sided, 35 µm, FR4, mixed
PTH/SMD
 RoHS compliant
Description
This board implements an offline power converter
based on a single stage high-PF flyback topology
using the HVLED001A controller.
A very slim form factor is achieved with
innovative magnetic componentry.
The output voltage is controlled by the primary
side, thus reducing the need for costly opto-
couplers. The HVLED001A PSR precision and
the innovative structure of the transformer makes
for highly accurate output voltage regulation
against load and line changes.
A very high efficiency is obtained and a full set of
protections including output short circuit and input
overvoltage is included.
Conducted EMI is pre-screened and clearances
and creepage distances adhere to EN60950
safety requirements.
Power factor and THD are optimized to be
respectively higher than 0.95 and lower than 10%
at full load over the entire input voltage range.
The main application for this converter is for bus
power supplies in a LED string driver providing 4
kV isolation.
September 2016
DocID029692 Rev 1
For further information contact your local STMicroelectronics sales
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