Table of Contents
Advertisement
MTP
100
90
80
70
60
50
40
30
20
10
-55
-35
-15
5
25
Start dim:
Stop dim:
Shut Down:
Dim level:
DTL
CLO
Design-in Guide - Philips Xitanium LED Xtreme SR driver
45
65
85
105
125
145
Temperature (˚C)
80
84
86
10
LED Module Temperature Protection (MTP)
Factory default setting: disabled
MTP is the method in which a thermal
implemented on the LED module is sensed by the driver, which will
cut back output current when a predefined (temperature) limit is
exceeded
in order to protect the LED module from thermal
overstress.
The driver accommodates for three NTC resistor choices. See the
section Thermal Design-In at page 14 for more details on NTC type.
Driver Temperature Limit (DTL)
Applicable to: potted drivers
Factory default setting: disabled
Description
Use the Driver Temperature Limit feature to configure the
165
185
temperature limitation settings for the driver.
˚C
Usage
Slect the Enable check box to use this feature. Use the sliders to
˚C
changes the values for this feature.
˚C
Enable: Select the Enable check box to use this feature. Start
%
dim: Set the temperature at which dimming start. Stop dim: Set
the temperature at which the dimming stops. Shut down: Set the
temperature at which the dim level will. be set to zero. When
selecting the N/A/ checkbox, the shutdown temperature is not
applied.
Dim level: Set the dim level for the Stop dim temperature.
Constant Light Output (CLO)
Factory default setting: disabled
CLO will gradually increase the light level over time from an
initial lower light level up to 100% light level in order to compensate
for LED module depreciation over life. It can also serve as a means to
reduce energy consumption.
CLO settings includes enabling disabling and redefining the CLO
dimming curve. Changes are effective immediately. The allowed range
for CLO is 0-100% with 1% increments (note that 0% results in the
LEDs being switched off). The 100% level corresponds with the
configured AOC value or AOC + ALO values.
sensor (NTC resistor)
31
Advertisement
Table of Contents
