VLSL3-DU
Vishay Semiconductors
2 x 24 W LED Driver Board Slight for VLSL30, VLSL31
FEATURES
• 10.5 V to 14 VIN, output module power up to 56 W • Reverse polarity protection • Boost regulated constant current sources (up to 8 channel, 6 LEDs) • Closed loop regulated current control, automatic regulated constant current if single string gets open circuit • 12 VDC input with undervoltage and overvoltage control, load dump protected • Operating temperature: - 40 °C to + 105 °C • Ambient light sensor for automatic dimming (25 %, 50 %, 100 %), or free programmable on request • PWM dimming via RFC/RTC controller (adaptable unit with RF antenna)
22075
DESCRIPTION
Using automotive qualified components, the 2 x 24 W LED driver board slight provides a highly reliable and efficient driving solution.
PARTS TABLE
PART VLSL3-DU for VLSL30 and VLSL31
TOPOLOGY
UIN Reverse polarity protection DC/DC Boost converter U max. U max. max. 24 V
Isense1
Isense2
Isense3
Isense4 Isense5 Isense6 Isense7
Isense8
On/Off
PWM µC
22076
Ambient light sensor
Document Number: 83302 Rev. 1.0, 22-Mar-10
For technical questions, contact: LED@vishay.com
www.vishay.com 1
VLSL3-DU
Vishay Semiconductors 2 x 24 W LED Driver Board Slight for
VLSL30, VLSL31
EFFICIENCY
94 93
Efficiency Factor (%)
92 91 90 89 88 20 30 40 50 60 70 80 90 100 110
22077
Dimming Level (%)
TERMINAL PLAN
L1 N PE
LED driver module
Anode green Cathode yellow Cathode yellow Cathode yellow Cathode yellow Anode brown Cathode blue Cathode blue Cathode blue Cathode blue Not connected
DC 12 V +
AC
12 V -
230 V
Electronic parts
DC 12 V +
Sensor cathode black Sensor anode white 12 V DC- black 12 V 12 V DC+ red 12 V DC- black 12 V DC+ red Supply voltage Terminal clamps
AC
22096
www.vishay.com 2
For technical questions, contact: LED@vishay.com
Document Number: 83302 Rev. 1.0, 22-Mar-10
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