VIPER16LDTR Datasheet, PDF (1/25 Pages) STMicroelectronics – Fixed frequency VIPerTM plus family

VIPER16
Fixed frequency VIPer^TM plus family
Features
■ 800 V avalanche rugged power section
■ PWM operation with frequency jittering for low
EMI
■ Operating frequency:
– 60 kHz for L type
– 115 kHz for H type
■ No need of auxiliary winding for low power
application
■ Standby power < 50 mW at 265 V_AC
■ Limiting current with adjustable set point
■ On-board soft-start
■ Safe auto-restart after a fault condition
■ Hysteretic thermal shutdown
Application
■ Replacement of capacitive power supply
■ Auxiliary power supply for appliances,
■ Power metering
■ LED drivers
SO16 narrow
SO-16
Description
DIP-7
The device is an off-line converter with an 800 V
avalanche ruggedness power section, a PWM
controller, user defined overcurrent limit,
protection against feedback network
disconnection, hysteretic thermal protection, soft
start up and safe auto restart after any fault
condition. It is able to power itself directly from the
rectified mains, eliminating the need for an
auxiliary bias winding.
Advance frequency jittering reduces EMI filter
cost. Burst mode operation and the devices very
low consumption both help to meet the standard
set by energy saving regulations.
Figure 1. Typical application
Table 1. Device summary
Order codes
VIPER16LN
VIPER16HN
VIPER16HD
VIPER16HDTR
VIPER16LD
VIPER16LDTR
October 2011
Package
DIP-7
SO16 narrow
Doc ID 15232 Rev 5
Packaging
Tube
Tube
Tape and reel
Tube
Tape and reel
1/25
www.st.com
25