Manual LCO EXC3/ADV3 OTD | 03-2020 | 1.2 | en
Compatibility between LED module and LED Driver
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Comparison
of…
Value in LED
module
Value in LED
Driver
Detailed procedure
(2) Voltage
Min. forward
voltage
>
Min. output
voltage
Max. forward
voltage
<
Max. output
voltage
Min. forward
voltage
@ min. dim
level
>
Min. output
voltage
Only relevant for dimmable LED Driver !
(3) LF current
ripple
Max.
permissible
LF current
ripple
>=
Output LF
current ripple
(<120Hz)
(4) Max. peak
current
Max.
permissible
peak current
>
Max. output
current peak
(5) Power
(pertinent for
multi channel
LED Driver)
Min. power
consumption
>
Min. output
power
Max. power
consumption
<
Max. output
power
Check whether voltage range of LED module is completely within the
voltage range of LED Driver
_
½
CAUTION!
!
The forward voltage is temperature dependent
Refer to the Vf/t diagram in the data sheet.
p
I
NOTICE
To ensure full dimming performance the forward voltage of the LED
module at min. dim level must be greater than or equal to the min.
output voltage of the driver.
Determine the forward voltage of the LED module at lowest dim level
_
In case there is no data available for the LED module at lowest dim
level: take the min. forward voltage minus 20% as an approximation
_
Check whether the forward voltage of the LED module is greater
than or equal to the min. output voltage of the driver
_
Check whether max. permissible LF current ripple of LED module is
greater than or equal to output LF current ripple of LED Driver
_
Check whether max. permissible peak current of LED module is
greater than max. output current peak of LED Driver
_
Check whether power range of LED module is completely within
output power range of LED Driver
_
