VIPER0P Datasheet, PDF (1/36 Pages) STMicroelectronics – Zero-power off-line high voltage converter

VIPer0P
Zero-power off-line high voltage converter
Datasheet - production data
Figure 1: Basic application schematic
Features
 Smart stand-by architecture using the
zero-power mode (ZPM)
 ZPM management by MCU easily realizable
 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 (OCP)
 Wide supply voltage range: 4.5 V to 30 V
 Self-supply option allows to remove the
auxiliary winding or bias components
 Minimized system input power consumption:
 Less than 4 mW @ 230 VAC in ZPM
 Less than 10 mW @ 230 VAC in no-load
condition
 Less than 400 mW @ 230 VAC with
250 mW load
 Jittered switching frequency reduces the
EMI filter cost
 60 kHz ±7% (type L)
 120 kHz ±7% (type H)
 Embedded E/A with 1.2 V reference and
separate ground for easy negative voltage
setting
 Protections with automatic restart:
overload/short circuit (OLP), 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
 SMPS for home appliances, home
automation, industrial, lighting and
consumers
Description
The device is a high-voltage converter that
smartly integrates an 800 V avalanche rugged
power MOSFET with PWM current-mode control.
The power MOSFET with 800 V breakdown
voltage allows extended input voltage range to be
applied, as well as to reduce the size of the
DRAIN snubber circuit. This IC is capable of
meeting the most stringent energy-saving
standards as it has very low consumption and
operates in pulse frequency modulation under
light load. The zero-power mode (ZPM) feature
enables the IC to work in an idle state, where the
system is totally shutdown. An MCU can be
easily connected to the IC for smart ZPM
management and it can be supplied by the IC
itself during the idle state. The design of flyback,
buck and buck boost converters is supported.
The integrated HV startup, sense FET, error
amplifier and oscillator with jitter allow a complete
application to be designed with a minimum
component count. In flyback non isolated
topology, a negative output voltage is easily set
thanks to the integrated error amplifier with
separate ground.
April 2016
DocID028423 Rev 2
This is information on a product in full production.
1/36
www.st.com