TDK-Lambda PAQ100S48-1R2, Инструкция по эксплуатации

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PAQ
-S48
PAQ
B-243
・All specifications are subject to change without notice.
3. Mounting Method and Thermal Condition
1 Output derating
There is no restriction on mounting direction but there
should be enough consideration for airflow so that heat
does not accumulate around the power module vicinity.
Determine external components configuration and mount-
ing direction on PCB such that air could flow through
power module at forced air cooling or convection cooling.
Take note, output power derating is needed as shown in
followings. (Refer to output derating by ambient tempera-
ture).
The derating curves provided is based on the below set-up
condition. For actual application with difficulty of air flow
measurement, find of PCB temperature is recommended to
ensure the power module operates within derating curve.
(Refer to Output derating by PCB temperature)
C
L
Airflow Airflow
In
pu
t
O
ut
pu
t
25.4mm
PCB PCB
12.7mm
7
6
m
m
Power
Module
Power
Module
Ta and air
velocity
measurement
point
Top view
Fig.1-1
（1）Output Derating by ambient temperature
PAQ100S48 Vin=48VDC
PAQ100S48-1R2 (including /V option)
100
80
60
40
20
0
−40 −20 0 20 40 60 80 100
1m/s
2m/s
Ambient Temperature (℃)
Load (%)
Air Velocity
Natural convection cooling
Fig.1-2
PAQ100S48-1R8 (including /V option)
100
80
60
40
20
0
−40 −20 0 20 40 60 80 100
1m/s
2m/s
Air Velocity
Natural convection cooling
Ambient Temperature (℃)
Load (%)
Fig.1-3
PAQ100S48-2R5 (including /V option)
100
80
60
40
20
0
−40 −20 0 20 40 60 80 100
1m/s
2m/s
Air Velocity
Natural convection cooling
Ambient Temperature (℃)
Load (%)
Fig.1-4
PAQ100S48-3R3 (including /V option)
100
80
60
40
20
0
−40 −20 0 20 40 60 80 100
1m/s
2m/s
Air Velocity
Natural convection cooling
Ambient Temperature (℃)
Load (%)
Fig.1-5
PAQ100S48-5 (including /V option)
100
80
60
40
20
0
−40 −20 0 20 40 60 80 100
1m/s
2m/s
Air Velocity
Ambient Temperature (℃)
Load (%)
Natural convection cooling
Fig.1-6
PAQ50S48 Vin=48VDC
PAQ50S48-1R2 (including /V option)
100
80
60
40
20
0
−40 −20 0 20 40 60 80 100
Air Velocity
Natural convection cooling
1m/s
2m/s
Ambient Temperature (℃)
Load (%)
Fig.1-7