5-33
The voltage-current relationship is shown in the picture below. Please note that the output voltage is not stabilised
but it is load dependent.
The HiD 2873 module can, in some operating conditions, transfer to the output an amount of power that is relevant
when compared with the reduced case size. It is therefore required to adopt proper mounting techniques such as
to avoid a too high operating temperature, which can have an impact on reliability and expected life time. With
reference to the above figure, and in function of the output load, the operating area is to be identified:
•
with a normal load ( A zone, Rload>300
Ω
), be careful to keep free from any obstruction the case venting
slits.
•
with a high load ( B zone, Rload<300
Ω
), it must be necessary to adopt a proper forced ventilation within
the cabinet or plug the modules on horizontally positioned termination board.
The dual channel HiD 2874 modules can, in some operating conditions, transfer to the output an amount of power
that is relevant when compared with the reduced case size. It is therefore required to adopt proper mounting
techniques such as to avoid a too high operating temperature, which can have an impact on reliability and
expected life time. With reference to the above figure, and in function of the output load, the operating area is to
be identified:
•
with a reduced load ( A zone, Rload>900
Ω
), be careful to keep free from any obstruction the case venting
slits
•
with a normal load ( B zone, 300
Ω
<Rload<900
Ω
), the modules must always be plugged on horizontally
positioned termination board.
•
with a high load ( C zone, Rload<300
Ω
), besides to the previous cautions, it can be necessary to alternate
the HiD 2874 with other low power HiD modules or to adopt a proper forced ventilation within the cabinet.
Summary of Contents for HiD 2000 Series
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