Description
The device is a high voltage converter smartly
integrating an 800 V avalanche-rugged power
MOSFET with PWM current mode control. The
power MOSFET with 800 V breakdown voltage
allows the extended input voltage range to be
applied, as well as the size of the DRAIN snubber
circuit to be reduced. This IC meets the most
stringent energy-saving standards as it has very
low consumption and operates in pulse frequency
modulation under light load. The design of
flyback, buck and buck boost converters is
supported. The integrated HV startup, senseFET, error amplifier and oscillator with jitter allow
a complete application to be designed with the
minimum number of components.

Features
 800 V avalanche-rugged power MOSFET
allowing ultra wide VAC input range to be
covered
 Embedded HV startup and sense-FET
 Current mode PWM controller
 Drain current limit protection
– 370 mA (VIPER113)
– 480 mA (VIPER114)
– 590 mA (VIPER115)
 Wide supply voltage range: 4.5 V to 30 V
 Minimized system input power consumption:
– Less than 10 mW at 230 VAC in no-load
condition
– Less than 400 mW at 230 VAC with 250
mW load
 Jittered switching frequency reduces the EMI
filter cost:
– 30 kHz ± 7% (type X)
– 60 kHz ± 7% (type L)
– 120kHz ± 7%(type H)
 Embedded E/A with 1.2 V reference
 Protections with automatic restart:
overload/short-circuit (OLP), line or output
OVP, max. duty cycle counter, VCC clamp
 Pulse-skip protection to prevent flux- runaway
 Embedded thermal shutdown
 Built-in soft-start for improved system reliability

Applications
 Low power SMPS for home appliances, home
automation, industrial, consumer, lighting
 Low power adapters