STMicroelectronics VIPER318
The VIPER31 device is a high-voltage converter that smartly integrates an 800 V avalanche rugged power MOSFET with PWM current-mode control.. The 800 V breakdown allows extended input voltage range to be applied, as well as to reduce the size of the DRAIN snubber circuit. The IC can meet the most stringent energy-saving standards as it has very low consumption and operates in pulse frequency modulation at light load.| Part No. | VIPER318 |
|---|---|
| Datasheet | VIPER318 Download |
| Manufacturer |  STMicroelectronics |
| Description | Energy saving offline high voltage converter |
| Buy | Stock & Price |
FEATURES
● 800 V avalanche-rugged power MOSFET to cover ultra-wide VAC input range● Embedded HV startup and sense FET
● Current mode PWM controller
● Drain current limit protection (OCP): – 850 mA (VIPER318) ~ AC DIN RIN – 990 mA (VIPER319) VCC OVP DRAIN VIPER31
● Wide supply voltage range: 4.5 V to 30 V FB CONTROL – < 20 mW @ 230 VAC in no-load; COMP UVP GND CIN DAUX – < 430 mW @ 230 VAC, 25 0mW output load R1 C1
● Jittered switching frequency reduces the EMI filter cost: C3 R2 C2 D2 LOUT VOUT – 30 kHz ± 7% (X type) GND D1 COUT GND – 60 kHz ± 7% (L type) – 132 kHz ±7% (type H)
● Embedded E/A with 1.2 V reference
● Built-in soft-start for improved system reliability
● Protections with automatic restart: – overload/short-circuit (OLP) – thermal shutdown – overvoltage Product status link
● Protections without automatic restart: – pulse-skip protection to avoid flux runaway VIPER31 – undervoltage/disable Product label – max. duty cycle Application
● Low power SMPS for home appliances, ho...
