OSRAM OTi180W OPTOTRONIC LED Power Supply Owner’s Manual
- June 10, 2024
- OSRAM
Table of Contents
- General Information
- Environmental Specifications
- Electrical Specifications
- Wiring Diagram
- Mechanical Diagram
- Operating Range
- Dimming Curve
- Efficiency vs Output Voltage
- Power Factor Performance
- THD Performance
- LED Thermal Protection (NTC) Characteristic
- End-of-Life Indicator
- AstroDIM
- Constant Lumen Maintenance
- Dimmer Compatibility
- Lifetime vs Case Temperature
- Warranty
- Customer Service
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
OSRAM OTi180W OPTOTRONIC LED Power Supply
General Information
| Item Number | 57538 |
|---|---|
| Type | Constant Current |
| Output Power | 180W (Max.) |
| Programming Tool | 51645 |
| Software | Download |
| Programmable Features | Output Current Dimming level |
Configurable thermal protection AstroDIM
Environmental Specifications
| Ambient Operating Temperature | -40ºC to 55ºC |
|---|---|
| Case Temperature (Tc) | 85ºC1 |
90ºC (max)
Max. Storage Temp.| 70ºC
Max. Relative Humidity (%)| 95% non-condensing
Transient Protection| ANSI C62.41 Cat B
6.0kV, 4kV EFT
IP Rating| IP66
UL Environmental Rating| UL Class P, Dry & Damp
Type HL
UL File number| E320395
__ EMI Compliance FCC 47 Part 15 Class
A
Sound Rating| Class A
Electrical Specifications
Input
| Input Voltage (VAC) | 120V-277V (+/- 10%) |
|---|---|
| Frequency Range (Hz) | 50 – 60 Hz (+/- 10%) |
| 120V | |
| Input Current (A) | 1.65 |
| THD @ Full load | <10% |
| Power Factor @ Full load | >0.9 |
| Efficiency @ Full load | >90% |
| Inrush Current (Apk) | 42A, 412µs |
Output
| Output Current (mA) | 1000-1800mA (1mA step) |
|---|---|
| Output Voltage (VDC) | 50-150VDC |
| Output Ripple Current | < 20% @ 1800mA |
| Max. Output Power (W) | 180W |
| LED Power-Up Time | <1 sec |
| Load Regulation | <3% |
| Line Regulation | <3% |
| Over Voltage Protection | Yes |
| Over Load Protection | Current fold back @183W, non-latching |
| Output Short-Circuit Protection | Yes, non-latching |
Dimming
| Dimming Control | 0 – 10V (Isolated)2 AstroDIM |
|---|---|
| Dimming Range | 10-100% |
| Dimming Type | Analog |
| Source/Sink Current | 0.8mA |
LED thermal protection (NTC)
| NTC Value Active Range | ≤25kΩ |
|---|---|
| Temperature Derating start | User defined |
External NTC cannot leave the fixture
The PRG/ NTC control circuit terminals or lead wires are not isolated
Wiring Diagram
Mechanical Diagram
Mechanical Specification
| Length | 9.47” (240.5mm) |
|---|---|
| Width | 2.36” (59.9 mm) |
| Height | 1.5” (38.1mm) |
| Mounting Length | 8.9” (226.3mm) |
| Mounting slot width | 0.34“ (8.7mm) |
Operating Range
Dimming Curve
Efficiency vs Output Voltage
Power Factor Performance
THD Performance
LED Thermal Protection (NTC) Characteristic
The LED thermal protection feature of the OT180W helps reduce the temperature
of the LED module by reducing the output current in case of abnormal
temperature conditions. To use this feature a third party NTC thermistor
should be connected to the LED power supply as shown in the wiring diagram
below.
In the end application, care must be taken to place the NTC thermistor close
to the hottest spot on the LED module. If LED thermal protection is not
required the NTC port on the LED power supply connector can be left open.
Vishay, EPCOS, Murata, Panasonic are some of the manufacturers of NTC
thermistor. EPCOS part number for reference only B57164K153J (15kΩ @ 25°C).
Murata part number for reference only – NCP03XH223J05RL (22kΩ @ 25°C)
For detailed information on LED Thermal Protection, please refer to Technical Application guide (ECS 304)
Note: Graphs for reference. The de-rating limits can be programmed using the OT Programmer
Derating start = 6.3kΩ; Derating end = 4.3kΩ; Min output level = 10%
End-of-Life Indicator
The End-of-Life indicator feature helps the end user to receive a signal from the fixture indicating that it has reached its programmed life-time. After the LED driver reaches the programmed life-time, whenever it is turned ON, it stays at ‘Dim’ level (10%) for 10 minutes and reaches its appropriate level.
AstroDIM
AstroDIM is an autonomous five level (1 Power ON & 4 Dimming levels) dimming protocol. It provides multi-stage night-time power reduction based on an internal timer; there is no need for an external control infrastructure. The ECG is automatically aligned to the on and off times for the street lighting and provide a defined output for the particular period of time. Compared with conventional systems there are significant cost savings. AstroDIM is designed for dimming without any external control wiring. Therefore, AstroDIM helps to save energy, extend the life of the driver and the LED module and reduce light pollution, even if only a power line is available. In AstroDIM operation, the driver executes a preset dimming profile, which can be reconfigured via the OT Programming Tool. The autonomous dimming is regulated by an integrated timer (no real-time clock), which adjusts the dimming profile according to the previous night (operation from switch-on to switch-off).
For detailed information on AstroDIM please refer to Technical Application guide 2DIM feature (LED 408)
Constant Lumen Maintenance
The Constant Lumen Maintenance feature of the OT180W helps to maintain the required lumen output of the fixture at a constant level throughout its lifetime. In general LED’s lumen output will depreciate over time and in order to maintain sufficient light level towards the end of lifetime, the LED’s are driven at high current initially and will result in more energy consumption.
The constant lumen maintenance will give the flexibility to drive the LEDs at optimal driving current throughout its lifetime. This helps in energy savings, constant light output and enhanced reliability of the system.
Note: A detailed step-by-step instructions are outlined in the ‘OT Programmer User Manual V2.1’
Dimmer Compatibility
| Manufacturer | Part Number |
|---|---|
| OSRAM | EN-LCM-1R10V-GB2-BK |
EN-LCM-1R10V-GB2-BK/DR EN-ALC-1R10V-GB2-BK
EN-ALC-1R10V-GB2-BK-DR
Sylvania| ELMC-SL3W-TVWBX/UNV
Leviton| IP710-DLX
Lutron| DVTV-XX
Wattstopper| ADF-120277
Synergy Lighting Controls| ISD BC
Note: The absence of a dimmer from this chart does not necessarily imply incompatibility. Please reference the dimmer manufacturer’s instructions for installation.
Lifetime vs Case Temperature
Warranty
OPTOTRONIC® products are covered by our LED Module, OPTOTRONIC Power Supply or Control Warranty. For additional details, refer to the latest version of the warranty (LED089) available at www.osram.us/optotronic
Customer Service
OSRAM SYLVANIA Inc.
200 Ballardvale Street
Wilmington, MA 01887
USA 877-636-5267
www.osram.us/ds
ECS-OT450 08/21
OSRAM and OPTOTRONIC are registered trademarks of OSRAM GmbH.
Specifications subject to change without notice.
© 2021 OSRAM SYLVANIA Inc