VIPER15 Datasheet, PDF (1/40 Pages) STMicroelectronics – Off-line high voltage converters

VIPER15
Off-line high voltage converters
Features
■ 800 V avalanche rugged power section
■ Quasi-resonant (QR) control for valley
switching operation
) _{■ Standby power < 50 mW at 265 Vac}
t(s _{■ Limiting current with adjustable set point}
uc ■ Adjustable and accurate overvoltage
d _protection
ro _{■ On-board soft-start}
P _{■ Safe auto-restart after a fault condition}
te _{■ Hysteretic thermal shutdown}
sole Applications
Ob ^{■ Adapters for PDA, camcorders, shavers,}
- cellular phones, cordless phones, videogames
) _{■ Auxiliary power supply for LCD/PDP TV,}
t(s ^{monitors, audio systems, computer, industrial}
c _{systems, LED driver, No el-cap LED driver,}
u _{utility power meter}
rod ^{■ SMPS for set-top boxes, DVD players and}
Obsolete ^{P recorders, white goods}
SO16 narrow
SO-16
DIP-7
Description
The device is an off-line converter with an 800 V
rugged power section, a PWM control, double
levels of overcurrent protection, overvoltage and
overload protections, hysteretic thermal
protection, soft-start and safe auto-restart after
any fault condition removal. Burst mode operation
and device very low consumption helps to meet
the standby energy saving regulations. The quasi-
resonant feature reduces EMI filter cost. Brown-
out and brown-in function protects the switch
mode power supply when the rectified input
voltage level is below the normal minimum level
specified for the system. The high voltage start-up
circuit is embedded in the device.
Figure 1.
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Typical topology
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Table 1. Device summary
Order codes
VIPER15LN / VIPER15HN
VIPER15HD / VIPER15LD
VIPER15HDTR / VIPER15LDTR
August 2010

Package
DIP-7
SO16 narrow
Doc ID 15455 Rev 5
!-V
Packaging
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