STMicroelectronics VIPer17 Evaluation Board STEVAL-ILL017V1 STEVAL-ILL017V1 数据表
产品代码
STEVAL-ILL017V1
Data Brief
For further information contact your local STMicroelectronics sales office.
September 2008
Rev 1
1/4
4
STEVAL-ILL017V1
Offline constant current LED driver based on the VIPer17
Features
■
Input voltage 220 VAC +/- 20%
■
800 V avalanche rugged power section
■
Provides 500 mA constant current for LED
■
High precision constant current with +/- 5%
tolerance (1 sense resistor and 2 resistor
bridges with +/- 1% precision)
tolerance (1 sense resistor and 2 resistor
bridges with +/- 1% precision)
■
Overtemperature protection
■
LED open-circuit protection
■
LED short-circuit protection
■
PWM operation with frequency jittering for low
EMI
EMI
■
Operating frequency:
– 60 kHz for L type
– 115 kHz for H type
■
Standby power < 50 mW at 265 VAC
■
Adjustable and accurate overvoltage
protection
protection
■
On-board soft-start
■
Safe auto-restart after a fault condition
Applications
■
Adapters for PDAs, camcorders, electric
shavers, cellular phones, videogames
shavers, cellular phones, videogames
■
Auxiliary power supply for LCD/PDP TVs,
monitors, audio systems, computers, industrial
applications
monitors, audio systems, computers, industrial
applications
■
SMPS for set-top boxes, DVD players/
recorders, white goods
recorders, white goods
Description
The STEVAL-ILL017V1 demonstration board is a
2 W non-isolated offline constant current LED
driver based on the VIPer17. The board operates
with an input ranging from 176 V to 264 VAC and
provides 500 mA of constant current from a 7
2 W non-isolated offline constant current LED
driver based on the VIPer17. The board operates
with an input ranging from 176 V to 264 VAC and
provides 500 mA of constant current from a 7
VDC source, suitable for illuminating two LEDs in
series.
series.
The VIPer17 device is an offline converter with an
800 V rugged power section, a PWM control,
overcurrent protection, overvoltage and overload
protection, hysteretic thermal protection, soft-start
and safe auto-restart after the removal of a fault
condition. The brown-out protection function is
embedded into the high voltage start-up.
800 V rugged power section, a PWM control,
overcurrent protection, overvoltage and overload
protection, hysteretic thermal protection, soft-start
and safe auto-restart after the removal of a fault
condition. The brown-out protection function is
embedded into the high voltage start-up.
Burst mode operation and the very low
consumption of the device combine to meet
standby energy saving regulations. Advanced
frequency jittering reduces EMI filter cost.
consumption of the device combine to meet
standby energy saving regulations. Advanced
frequency jittering reduces EMI filter cost.
STEVAL-ILL017V1