AN1735 is ST's VIPer22A single output reference board application note, which uses the VIPer22A switch power chip. The input voltage range is 90-264VAC, the output voltage is 12V, the maximum output current is 0.84A, and the maximum output power is 10W.
The document details an off-line wide range single output power supply prototype based on the ViPer22A off-line SMPS primary switcher manufactured by STMicroelectronics. The board utilizes a dedicated current mode PWM controller with a high voltage Power MOSFET integrated on the same silicon chip, operating at a fixed switching frequency of 60 kHz.
| Input voltage range | 90 to 264 Vac |
|---|---|
| Output Voltage | 12V |
| Output current | 0.84A |
| Output power | 10W |
| Efficiency | 75% typical |
| Switching frequency | 60 kHz |
The converter operates with an input voltage range of 90 to 264 Vac, an output voltage of 12V, and a maximum output current of 0.84A.
Yes, the unit complies with EN55022 Class B EMI specifications.