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STEVAL-LLL003V1

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7.5 W non-isolated constant current LED driver based on VIPer0P

Quantity $ per Unit Savings
1 - 2$31.850%
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In stock
$31.85
Parameter NameParameter Value
Target ApplicationLED Lighting
Core ProductVIPer0P
Input Voltage Min Volt85.0
Input Voltage Max Volt265.0
ECCN USEAR99
ECCN EUNEC
Packing TypeNot Applicable
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameCARD

The STEVAL–LLL003V1 evaluation board is a constant current LED driver, based on non–isolated buck topology using VIPer0P.


The board delivers 130 mA ± 2.5% at an output load of 15 – 21 white LEDs.


The buck topology ensures a minimum number of components as well as higher efficiency when operating at high output voltage (60 V and above).


The application core is the new VIPer0P offline high voltage converter which smartly integrates an 800 V avalanche rugged power MOSFET with current-mode control.


Thanks to the embedded E/A (EAGND) floating GND, the direct current regulation can be applied to the buck converter, improving the LED current accuracy.

Key features
  • Non-isolated buck topology
  • Two input voltage ranges:
    • US range: 85-135 VAC (jumper J2 - closed, voltage doubler)
    • EU range: 175-285 VAC (jumper J2 - open, bridge rectifier)
  • 130 mA ±2.5% output constant current (15-21 white LEDs connected)
  • 60 kHz fixed frequency operation
  • ≅89% efficiency at maximum load
  • Protections:
    • open/no-load circuit protection
    • short/overload circuit protection
    • thermal shutdown
  • Soft start for improved system reliability
  • Meets IEC55022 Class B conducted EMI even with reduced EMI filter, thanks to the frequency jittering feature
  • Meets IEC61000-4-2(ESD), IEC61000-4-4 (Burst) and IEC61000-4-5 (Surge)
  • RoHS compliant