STEVAL-ILL069V1 Datasheet, PDF (1/5 Pages) STMicroelectronics – Short circuit protection with auto restart

STEVAL-ILL069V1
35 W wide input range flyback converter using HVLED001 quasi
resonant flyback controller
Data brief
Features
 Input voltage: Vin = 90 - 264 Vrms, f = 45 -
66 Hz
 Output voltage: 48 V / 730 mA
 High power factor, low THD
 No-load: better than 400 mW @ 230 Vin
 Full load efficiency: better than 90%
 Short circuit protection with auto restart
 Safety: Acc. to EN60065
 PCB board: 130 mm x 50 mm single side
PCB
 RoHS compliant
Description
The STEVAL-ILL069V1 is designed to provide a
stable and insulated 48 V voltage bus to supply
secondary side circuitry (e.g., LED current
generators) with a total output power of 35 W
when a wide range of input voltages is applied at
its input. An auxiliary 14 V output is also present
to supply small circuitries which absorb a
maximum current of 20 mA. A very high power
factor is obtained thanks to the HVLED001's
features, including management of protections for
input voltage variations, excessive input voltages
(overvoltage due to surges or bursts) and very
low input voltages, thus improving the reliability of
the application. The efficiency of the application
is very high even at very low loads thanks to the
improved frequency fold-back feature that
simultaneously reduces the output voltage ripple
at light loads. Output short circuit and overload
protections feature auto-restart for safer
operation in lighting environments.
The board can operate with 305 Vrms input
voltage replacing Q1 with STF5N95K5 Power
MOSFET.
July 2015
DocID027080 Rev 2
For further information contact your local STMicroelectronics sales
office
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