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LX50W driver is a high-performance LED driver that provides smooth, continuous <1% dimming for virtually any LED fixture, whether it requires constant current or constant voltage. It is the most versatile LED driver offered today due to its compatibility with a wide variety of LED arrays, multiple form factors, and numerous control options. Module Temperature Protection (MTP) supports thermal feedback and robust thermal manage. LED module working temperature can automatically be reduced by the LX50W driver, setting by software of the output current decrease depending on the measuredNTC value to avoid decreased lifetime of the LED module. |
LED codes configure dimming curve, LED current and more. Programmable solution that offer ultimate design flexibility. GUI interface for programmable output current using. Flexibility & SKU reduction for OEM.
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Key Features |
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■ Drive Mode: |
Flicker-Free Programmable Constant Current. |
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■ Technology:
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Active PFC 2-Stage Switch Mode.
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■ Input Voltage: |
120 to 277 Vac, 50/60Hz at 0/1-10V Dimming. 120 to 277Vac, 50/60Hz at 0-10V Dimming
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■ Output Power: |
50Watt Max. |
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■ 0/1-10VDimming: |
Smooth &Continuous Deep Dimming from 100% to 0%. |
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LEDs turn on to any dimmed level without going to full brightness. |
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Constant Current Reduction (CCR) dimming methods. |
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2-wire Analog (Optional: Aux 12Vdc/200mAoutput). |
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■ Output Voltage: |
12Vdc to 55 Vdc. (Auto set with GUI). |
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■ Output Current: |
400mA to 1400 mA. (Set by GUI). |
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■ Efficiency: |
Up to 86%. |
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■ Warranty: |
5 years. |
Special Features
■ Continuous, flicker-free dimming from 100% to 1%, dim-to-off programmable, Minimum dimming programmable, Dimming curve programmable (Optional: linear, log). Dimming control is isolated for AC input and DC output.
■ Programmable options: Output Current Soft-Start, Constant Lumen Output, End-of-life Indicator.
■ Output current can be controlled by an external NTC, Protection temperature programmable.
■ Output current can be set by GUI.
■ A rated lifetime of 50,000 hours @ Tc = 80 °C.
■ Safety: UL8750, UL1310 Class 2, CSA22.2. Safety isolation between primary and secondary.
■ EMC: FCC 47CFR Part 15 Class A.
■ Surge: Surge Immunity test, 2.0 kV L-N, 4 kV L-FG & N-FG.
■ Ring Wave: NEMA SSL1 – 2010Non-Roadway,100KHz ring wave, 2.5KV, common and differential mode.
■ T5 Ballast style metal case. Meet the RoHS directive.
■ Damp & Dust resistant design IP20, NEMA1 compliant for Dry& Damp.
YG Programmer PC Based Software, USB Interface
Programmable Output Current (POC): Programmable Iout from 100mA to 500mA.
YG Programmer PC Based Software, USB Interface
Programmable Output Current (POC): Programmable Iout from 400mA to 1400mA.
Programmable NTC Values:
Default: 2.0K ≈10% Iout, 6.3K = 100% Iout
Programmable settings: NTC Minimum Level (%), NTC Minimum Ohms, NTC Maximum Ohms.
Programmable Minimum Dim Level: 0% (OFF) to 100% Iout programmed value.
Programming Tool:
The YG Programmer is a programming and configuration tool for YG intelligent programmable LED drivers. It consists of the YG programmer which is connected between the USB port of a computer and the LED driver being programmed, and the YG programmer software. The YG programmer software is a PC based graphical user interface that allows the user to program and configure the operating parameters of an YG Programmable LED Driver. This interface allows the operator to set the LED drivers output current within its specified range. In the increments specified. It also provides the ability to enable/disable and control features like "Dimming", "Auxiliary Output", "NTC Thermal Protection", "Constant Lumen Module" & "End-of-life indicator" when available in the YG intelligent LED driver being programmed.
YG Programmer:
Is the physical USB unit connected between the USB port of a computer and the LED driver being programmed? This unit also provides all power required to the LED driver being programmed. No connection to an AC power source is required for programming the LED driver.
YG Programmer Software:
The YG Programmer software is the windows based GUI that allows the user to assign custom part number(s) to the LED driver being programmed. The user can then save the profile to a computer disk and recall as need. The user can then use the "Auto Program" feature to quickly program as many LED drivers with the saved profile as is required. Each driver programming simply requires a click of the mouse to program in a single step.
The YG Programmer software supports bar code scanners. The barcode scanner can be used to automate the programming of the attached LED driver. The barcodes scanner interface also provides an option to either enable or disable logging of the parameters to an excel file.
Note: The programming of the LED driver does not require the input be connected to an AC power connection. The YG Programmer and the required LED driver circuitry will be powered from the YG Programmer module via the USB connection to a computer.
50W 0/1-10V Dimming Part List
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No. |
Part Number |
Input Voltage |
US Class 2 |
Output Voltage Range |
Programmable Output Current |
0-10V Dimming |
Current Accuracy |
Power Factor |
Output Power |
Model Efficiency |
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1 |
LX50W-55-C1400-RP-12-C7 |
120-277Vac |
Yes |
12~55Vdc |
400-1400mA |
1-100% |
±5% |
0.90 |
50W |
86% |
Note：0-10V dimming with dimming to off for US;1-10V dimming for EU.
Programmable Parameters
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Programmable Parameter |
Programmable Minimum Value |
Programmable Maximum Value |
Factory Default |
GUI (NTC) Programmable |
Notes / Conditions |
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Output Constant Current (Iout) |
400mA |
1400mA |
1400mA |
YES |
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Dimming Curve |
LINEAR |
0% |
N/A Fixed 100% |
0% |
YES |
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LOG |
0% |
N/A Fixed 100% |
0% |
YES |
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NTC Minimum Ohms |
1KΩ |
10KΩ |
2KΩ |
YES |
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NTC Minimum %out |
~10% |
100% |
100% |
YES |
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NTC Maximum Ohms |
2KΩ |
10KΩ |
6.3KΩ |
YES |
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Output Current Soft-Start |
YES |
YES |
--- |
--- |
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Constant Lumen Output |
YES |
YES |
--- |
--- |
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End-of-life Indicator |
YES |
YES |
--- |
--- |
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Input Specifications
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Parameter |
Min. |
Typ. |
Max. |
Notes /Conditions |
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Input Voltage Range |
108Vac |
--- |
305Vac |
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Input Frequency |
47Hz |
50/60Hz |
63Hz |
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Input AC Current |
--- |
--- |
0.53A |
Measured at 120Vac / 60Hz Input, Output Full Load. |
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--- |
--- |
0.23A |
Measured at 277Vac / 60Hz Input, Output Full Load. |
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Inrush Current (Peak) |
--- |
3.6A / 40uS |
5A / 40uS |
Measured at 120Vac / 60Hz Input, Output Full Load. |
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16.5A / 40uS |
20A / 40uS |
Measured at 277Vac / 60Hz Input, Output Full Load. |
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Leakage Current |
--- |
--- |
300μA |
Measured at 120Vac / 60Hz Input, Output Full Load. |
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--- |
--- |
750μA |
Measured at 277Vac / 60Hz Input, Output Full Load. |
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THD |
--- |
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20% |
Measured at 120, 277Vac Input, Output ≥60% Load. The working window that meets the DLC standard sees the curve on page 8. |
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Power Factor (PF) |
0.90 |
--- |
--- |
Output Specifications
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Parameter |
Min. |
Typ. |
Max. |
Notes /Conditions |
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DC Output Current (POC) |
-5% |
Per Table |
+5% |
Programmable Output Current (POC) |
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Output Voltage (max.) |
--- |
--- |
59V |
Measured at 120-277Vac / 60Hz Input, Output no Load |
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Output Power |
--- |
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50W |
Voltage Foldback, Power operation window see the curve on page 6 |
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Flickering Index (Vpk-pk) |
--- |
--- |
5% Vo |
Output Full Load. 20MHz BW, Full load output in parallel with 0.1uF & 10uF CAP. Flickering Index is defined as [(Ymax-Ymin)/(Ymax+Ymin)] * 100%. Y may be V or I |
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Flickering Index (Ipk-pk) |
--- |
--- |
5% Io |
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Line Regulation |
-5% |
--- |
+5% |
Measured at 120-277Vac / 60Hz Input, Output Full Load |
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Load Regulation |
-5% |
--- |
+5% |
Measured at 120, 277Vac / 60Hz Input |
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Start-up Time |
--- |
---- |
500ms |
Measured at 120Vac / 60Hz Input, Output Full Load |
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--- |
---- |
500ms |
Measured at 277Vac / 60Hz Input, Output Full Load |
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Output Overshoot |
-5% |
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+5% |
Measured at 120, 277Vac Input, When power on or off |
Protection Specifications
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Parameter |
Min. |
Typ. |
Max. |
Notes /Conditions |
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Output Short Circuit (SCP) |
--- |
--- |
--- |
No Damage. Auto recovery after short is removed. |
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Output Over Current (OCP) |
--- |
--- |
+10% Io |
Constant Current Limiting circuit. |
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Output Over Voltage (OVP) |
--- |
--- |
110% Vo |
No Damage. Auto recovery after the abnormal disappearance. |
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Over Temperature Protection (OTP) |
90°C |
100°C |
110°C |
The temperature is 100±10°C. After the product enters OTP, the current will be derated. |
Dimming Specifications
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Items |
Parameter |
Min. |
Typ. |
Max. |
Notes /Conditions |
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12V Auxiliary Output |
Output Voltage |
10.8V |
12.0V |
13.2V |
Yellow Wire |
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Output Current |
0 mA |
---- |
200mA |
Yellow Wire |
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0/1-10V Dimming |
Input Absolute Voltage |
0V |
10V |
15V |
Purple Wire |
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Output Source Current |
--- |
--- |
200uA |
Purple Wire |
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Output Current Range in 0/1-10V Dimming |
0% |
--- |
100% |
DIM+/DIM- Reverse connection is prohibited |
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Output Current in 0/1-10V Pin Open |
--- |
Normal |
--- |
It's a constant current output with active PFC. |
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Output Current in 0/1-10V Pin Short Circuit |
--- |
0 |
--- |
CCR output |
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PWM Dimming |
Input Absolute Voltage |
8.5V |
10V |
15V |
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Input Current on PWM pin |
--- |
--- |
200uA |
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PWM Frequency |
200Hz |
--- |
2KHz |
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PWM Duty |
0 % |
--- |
100% |
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Output Current Range in PWM Dimming |
0% |
--- |
100% |
CCR output |
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Output Current in PWM Pin Open |
--- |
Normal |
--- |
It's a constant current output with active PFC. |
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Output Current in PWM Pin Short Circuit |
--- |
0 |
--- |
CCR output |
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0/1-10V & PWM Dimming |
Compatible dimming function: 0/1-10V and PWM dimming. |
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General Specifications
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Parameter |
Min. |
Typ. |
Max. |
Notes /Conditions |
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Cooling |
Convection |
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Life Time |
50,000 hours |
For 12V output model, measured at 100%Load and Tc=80°C |
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Environmental Specifications
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Parameter |
Min. |
Typ. |
Max. |
Notes /Conditions |
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Case Temperature (Tc) |
--- |
--- |
+90 °C |
Measured at location specified on case. |
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Operating Temperature (Ta) |
-40 °C |
--- |
+50 °C |
This is a reference range. Tc controls temperature range. |
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Storage Temperature (Ts) |
-40 °C |
+85 °C |
Non operating temperature range. |
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Operating Humidity |
--- |
--- |
95% RH |
Relative Humidity. Non condensation. |
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Vibration |
5 Hz |
--- |
55 Hz |
2G, 10minutes / 1 cycle, period 30 minutes, each along X, Y, Z axis. |
Safety Compliance
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Safety Category |
Standards / Notes |
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UL/ cUL |
UL8750, CSA-C22.2 No. 250.13, US LED Driver Class 2, UL Class P. |
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Withstand Voltage |
Input to Output: 2000 Vac. Output to Dim: 2000Vac. |
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Isolation Resistance |
Input to Output: >10MΩ, 500Vdc @ 25°C, 70% RH. |
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Aux Circuit |
+12V (Yellow) is considered part of the secondary circuit. |
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Dimming |
DIM+ (Purple), DIM- (Grey)are insulated from secondary circuits. |
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FG |
The metal case of the driver must be connected to earth ground (FG) in the end-use application. |
EMC Compliance
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EMI Category |
Standards |
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FCC |
FCC 47CFR Part 15 Class A, ANSI C63.4: 2009. |
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Ring Wave |
NEMA SSL1 – 2010Non-Roadway,100KHz ring wave, 2.5KV, common and differential mode. |
Note: The above test data are in the condition of 25℃ ambient temperature, except for the marked temperature.
Typical Applications
■. 0/1-10V Dimming Driver with programmable & NTC control.
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AC Input |
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FG |
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+ = Red |
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- = Blue |
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N = White |
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L1 = Black |
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DC Output |
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LX50W-55-C1400-RP-12-C7 0/1-10VDimmingDriver |
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NTC |
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SCOM |
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t |
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+12V |
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DIM- |
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DIM+ |
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DC+12V |
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GUI +- |
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( ) |
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(PURPLE) |
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0-10V PWM |
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(GREY) |
0/1-10V Dimming Curve @ Minimum dimming set to 1%
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0% |
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10% |
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20% |
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30% |
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40% |
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50% |
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60% |
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70% |
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80% |
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90% |
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100% |
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---LINEAR 1-10V ---LOG 1-10V |
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0/1-10V Input Volts PWM Input Duty% |
0/1-10V Dimming Curve @ Minimum dimming set to 0%
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0/1-10V Input Volts PWM Input Duty% |
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0% |
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10% |
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20% |
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30% |
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40% |
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50% |
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60% |
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70% |
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80% |
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90% |
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100% |
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---LINEAR 0-10V ---LOG 0-10V |
Note: 1. The maximum deviation of the 0-10V dimming curve parameters above is ± 0.5.
2. Vdim (max)：8.20±0.20 (8.0-8.4V); Vdim (on)：1.25±0.25 (1.0-1.5V); Vdim (off)：0.95±0.25 (0.7-1.2V).
3. The above test data are in the condition of 25℃ ambient temperature.
4. There are errors in batch consistency, please refer to the test parameters of each model for details.
NTC Current Control
Note: Maximum dimming current is limited by NTC.
NTC values, NTC High, NTC Low and NTC Minimum Iout can be programmed.
Using YG Programmer USB interface & YG PC based GUI Software.
Default: NTC Low = 2.0K ~10% Iout, NTC High = 6.3K, 100% Iout.
Module Temperature Protection Example
NTC = 0805SMD, R25C = 15K Ohms±2%, R64C = 3700, Vishay Part#: NTCS0805E3153GMT
Power Operating Window& DLC Window
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DLC working area |
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POW working area |
PF>0.9 and THD<20%, Window that meet DLC standards at input 120-277V range.
Power Operating Window.
Note: When the output current is set, the output voltage is automatically limited within the curves.
Output Current derating vs. TC Temperature Curve
Note:
◆The temperature control curve is the test result of the technical sample, and the product is not tested.
◆Affected by the internal temperature distribution of the shell, the test temperature has a large error corresponding to the TC temperature.
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