STMicroelectronics EVL80WLED-STCH03 Demonstration Board
STMicroelectronics EVL80WLED-STCH03 Demonstration Board implements a wide range 80W LED driver for street lighting applications with a primary current sensing control loop. The LED driver is a fixed current source with a very fast start-up time， protections to short-circuit， and_to open load. The board is optimized to supply an LED string load in the range from 40V to 80V with a fixed 1A current source with a very low current ripple. Due to the current primary side STCH03 control loop， the output stage is composed of a simple diode rectification and_the output capacitor. The form factor is compatible with street lighting applications. At full load， the efficiency is above 90%_at nominal voltages and_remains very close to this value until it reaches half the load. Output short-circuit and_no-load protections are auto-restart for safe operation in a lighting environment. Low input power is there at no-load conditions.
FEATURES
90 - 265Vrms input voltage (f: 45-66Hz)
40 -80V @ 1A LED string range
< 50mA Output current ripple
< 300ms fast startup
High power factor， low THD (< 5%)
< 0.5W @ 230Vin no-load
> 90%_average full load efficiency
Short-circuit protection with auto-restart
LED string open with auto-restart
Acc. to EN61000-3-2 Class-C or JEITA-MITI Class-C
EMI: Acc. To EN55022 Class B - conducted emissions
Safety: Acc. to EN60065C
