Description

The STEVAL-ISA129V1 demonstration board is a

16 V - 280 mA application set in non isolated

flyback topology using the VIPer16, a new off-line

high voltage converter by STMicroelectronics.

The VIPer16 features an 800 V avalanche rugged

power section, PWM operation at 115 kHz with

frequency jittering for lower EMI, limiting current

with adjustable set point, on-board soft-start, and

safe auto-restart after a fault condition.

Moreover, the VIPer16 can work with or without

the auxiliary winding. In the former case, it can

reach very low standby consumption (< 50 mW at

265 Vac), while in the latter the IC is supplied by

an internal current generator, thus eliminating the

cost of the transformer auxiliary winding.

• Protection features available include thermal

shutdown with hysteresis and delayed

overload protection.

Features

• Input voltage range VIN: 90 VRMS - 265 VRMS

• Output voltage VOUT: 16 V

• Max output current IOUT: 0.28 A

• Precision of output regulation VOUT_LF: ±5

• High frequency output voltage ripple VOUT_HF:

50 mV

• Max ambient operating temperature TA: 60 °C

• RoHS compliant