TDK-Lambda NV700 Manual De Instrucciones página 18

NV700 Handbook
S Forward
S Forward
Customer
Air ,
fan not
C,
fitted.
U‡
U=also
cover
not fitted.
† Both the total output power and the module output currents are de-rated by the given value.
‡ Refer to Customer Air Cooling section for details.
# The PSU may output the given peak power for up to 10 seconds providing that the average power from the PSU does not
.
exceed the stated dose
Global Option standby outputs (12V at 1A, 13.5V at 1A or 5-5.5V at 2A) should not be included when calculating total
PSU output power, but they are subject to the current de-ratings for operation above 50°C.
Global Options with output voltages between 5.01 and 5.5V have their max. Output current linearly de-rated from 2A
at 50°C ambient to 1.4A at 65°C ambient.
Customer Air Cooling (options C or U):
The following method must be used for determining the safe operation of PSUs when C or U options (Customer Air)
are fitted, ie fan not fitted to PSU. The minimum permitted airflow for customer air cooling is 0.5m/s.
For PSUs and assemblies cooled by customer supplied airflow the components listed in the following table must not
exceed the temperatures given. Additionally ratings specified for units with an internal fan shall still be complied
with, eg mains input voltage range, maximum output power, module voltage / current ratings and maximum ambient
temperature. To determine the component temperatures the heating tests shall be conducted in accordance with the
requirements of the appropriate standards.
Test requirements include: PSU/assembly to be fitted in its end-use equipment and operated under the most adverse
conditions permitted in the end-use equipment handbook/specification and which will result in the highest
temperatures in the PSU/assembly. To determine the most adverse conditions consideration shall be given to the
end use equipment maximum operating ambient, the PSU/assembly loading and input voltage, ventilation, end use
equipment orientation, the position of doors & covers, etc. Temperatures shall be monitored using type K fine wire
thermocouples (secured with cyanoacrylate adhesive, or similar) placed on the hottest part of the component (out of
any direct airflow) and the equipment shall be run until all temperatures have stabilised.
Circuit Ref.
L2, L3
C1, C3, C4
L1
C12, C13
T1
RL1
TX1, TX2
L1, XL1
L1
Global option T2
Various
Various
100-149.9 (850W peak if
150-264 (1450W peak
90-149.9 (850W peak if
1150W
Continuous
150-264 (1450W peak
if 1150W
Description
Filter/PFC assy: Choke winding
Filter/PFC assy: X capacitors
Filter/PFC assy: Boost choke winding
Filter/PFC assy: Electrolytic capacitor
Filter/PFC assy: Flyback transformer winding
Filter/PFC assy: Relay
Modules: Power transformer windings
B, BH & DB module chokes
C & CM module chokes
Global Options: Transformer winding
All other choke & transformer windings
All <=10mm diameter electrolytic capacitors
700W
average #)
700W
Continuous
O
65
700W
average #)
1150W
Continuous
O
65
if 1150W
average #)
700W
Continuous
700W
average #
‡
average #)
Page 18 of 30
O
C 2.5% per C above 50
O
C 2.5% per C above 50
‡
Max. Temperature (°C)
155
100
130
60 (105)
130
100
130
125
140
90 (130)
110
85 (105)
17187 issue 19, October 2018
O
C
O
C