ac to dc 320ma 350ma constant current source dimming led driver
AC-DC Triac Dimmable constant current LED driver, with 85*45*26mm dimension, 180-265vAC /47~63Hz. PWM output, full loading, non-waterproof rate/ IP20, CE ROHS approval for EU market.
Product Features
Universal AC input (180-265V)
AC-DC Triac Dimmable LED Driver
wide input volt and freq:180-265Vac
Efficiency > 85%
PF>0.90
Vi=110/220V
THD:<10%
3 years warranty
Isolated Designing solution
Specification
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Model |
SMT-050-0150CTH |
SMT-040-0200CTH |
SMT-032-0250CTH |
SMT-028-0300CTH |
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Output |
DC Current |
150mA |
200mA |
250mA |
300mA |
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Current Accuracy |
±5% |
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Voltage Range |
38~50V |
28~40V |
20~32V |
16-28V |
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Rated power |
8W |
8W |
8W |
8W |
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Input |
Voltage Range |
170～265VAC |
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Frequency Range |
47～63HZ |
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Power Factor （Typ.） |
PF≧0.91/110V ; PF≧0.93/220V ; PF≧0.93/250V |
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Full Load Efficiency（Typ.） |
>84% |
>84% |
>85% |
>85% |
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AC Current（Typ.） |
0.14A/110VAC 0.12 A/220VAC 0.01A/250VAC |
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Leakage current |
<0.27mA/110VAC; ﹤0.25mA/220VAC |
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Protection |
Short Circuit |
Hiccup mode, recovers automatically after fault condition is removed. |
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Over voltage |
≦150VAC@110V / ≦270VAC@220V |
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Environment |
Working TEMP. |
-40～+60℃ |
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Working Humidity |
20～90%RH,non-condensing |
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Storage TEM.,Humidity |
-40～+80℃，10～95%RH |
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TEMP.coefficient |
±0.03%/℃（0～50℃） |
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Vibration |
10～500Hz，2G 10min./1 cycle，period for 60min. each along X,Y,Z axes |
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Safety&EMC |
Safety standards |
EN-60950-1, EN-61347-1-2 |
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Withstand voltage |
I/P-O/P:3.75KVAC |
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Isolation resistance |
I/P-O/P：100MΩ/500VDC/25℃/70%RH |
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EMC EMISSION |
Compliance toEN55015,EN61000-3-2 (≧50%load) |
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EMC IMMUNITY |
Compliance to EN55015,EN61000-4-2,3,4,5,6,8,11,A light industry level （surge4KV） |
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How does LED to dimming?
As a constant current source, LED lamps can be dimmed naturally. The current flowing through the LEDs beads determines the light output, and their brightness can be adjusted very easily by adjusting the current through the layer of semiconductor material attached to the substrate.
