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VIPER319

STMicroelectronics
Part Number VIPER319
Manufacturer STMicroelectronics
Description Energy saving offline high voltage converter
Published Aug 20, 2020
Detailed Description VIPER31 Datasheet Energy saving offline high voltage converter Features • 800 V avalanche-rugged power MOSFET to cover...
Datasheet PDF File VIPER319 PDF File

VIPER319
VIPER319

Overview
VIPER31 Datasheet Energy saving offline high voltage converter 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, home automation, industrial, consumers, lighting • Low power adapters Description The VIPER31 device is a high-voltage converter that smartly integrates an 800 V avalanche rugged power MOSFET with PWM current-mode control.
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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.
Overvoltage and undervoltage protections with separate and settable intervention thresholds are available at OVP and UVP pins respectively.
UVP can also be used as a disabling input for the entire SMPS, with ultra-low residual input power consumption.
Integrated HV startup, sense FET, error amplifier and oscillator with frequency jitter allow a complete application to be designed with...


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