Product overview
Description
The EVL012LED is an LED driver board. This architecture is based on a two-stage approach: a front-end PFC preregulator and a downstream resonant half-bridge converter, using the new STNRG012 IC that embeds the controllers of both sections in the same device. Thanks to the STNRG012, the main features of this design are high efficiency, low power consumption at no load without an auxiliary supply, good power factor with low harmonic content, and reduced part count. The board also has a full set of protection features including output overload, short-circuit, and overvoltage; all of which can be easily defined as latched or auto-restart, simply changing a value in the non-volatile memory of the controller.
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All features
- Universal input main range: 90…277 VAC - frequency 45 ÷ 65 Hz
- Maximum output power: 200 W
- Constant current output: 3.6 A max.
- Output voltage range: 36 ÷ 56 Vdc
- Mains harmonics: according to EN61000-3-2 Class-C, JEITA-MITI Class-C
- No load mains consumption: < 0.5 W
- Auxiliary stage: No
- Efficiency: > 93% at full load
- THD: < 7.5% at 230 VAC from 30% to 100% of full load
- Conducted EMC: according to EN55022-class-B limits
- Safety: according to EN60950
- Dimensions: 210x55x15 mm, (L x W x H)
- PCB: dual layer, 35 μm, FR-4, mixed PTH/SMT
- Dimming: analog from 100% to less than 10% with:
- 100 k ohm potentiometer or:
- 0 -10 V external voltage
- Feedback loops: constant current and constant voltage
- Protections: input brown-in/out, PFC saturation and PFC OVP LLC capacitive mode, OCP LED output overload and short-circuit, LED string open, feedback disconnections
