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
Model
SMT-050-0150CTH
SMT-040-0200CTH
SMT-032-0250CTH
SMT-028-0300CTH
Output
DC Current
150mA
200mA
250mA
300mA
Current Accuracy
±5%
Voltage Range
38~50V
28~40V
20~32V
16-28V
Rated power
8W
8W
8W
8W
Input
Voltage Range
170～265VAC
Frequency Range
47～63HZ
Power Factor （Typ.）
PF≧0.91/110V ; PF≧0.93/220V ; PF≧0.93/250V
Full Load Efficiency（Typ.）
>84%
>84%
>85%
>85%
AC Current（Typ.）
0.14A/110VAC 0.12 A/220VAC 0.01A/250VAC
Leakage current
<0.27mA/110VAC; ﹤0.25mA/220VAC
Protection
Short Circuit
Hiccup mode, recovers automatically after fault condition
is removed.
Over voltage
≦150VAC@110V / ≦270VAC@220V
Environment
Working TEMP.
-40～+60℃
Working Humidity
20～90%RH,non-condensing
Storage TEM.,Humidity
-40～+80℃，10～95%RH
TEMP.coefficient
±0.03%/℃（0～50℃）
Vibration
10～500Hz，2G 10min./1 cycle，period for 60min.
each along X,Y,Z axes
Safety&EMC
Safety standards
EN-60950-1, EN-61347-1-2
Withstand voltage
I/P-O/P:3.75KVAC
Isolation resistance
I/P-O/P：100MΩ/500VDC/25℃/70%RH
EMC EMISSION
Compliance toEN55015,EN61000-3-2 (≧50%load)
EMC IMMUNITY
Compliance to EN55015,EN61000-4-2,3,4,5,6,8,11,A light industry
level （surge4KV）
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.
