FGLS12SR6040A Datasheet, PDF (12/21 Pages) List of Unclassifed Manufacturers – 4.5-14.4Vdc Input, 40A, 0.6-2.0Vdc Output

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FGLS12SR6040*A
4.5-14.4Vdc Input, 40A, 0.6-2.0Vdc Output
Preliminary Data Sheet
Characterization
Overview
The converter has been characterized for several
operational features, including efficiency, thermal
derating (maximum available load current as a
function of ambient temperature and airflow), ripple
and noise, transient response to load step changes,
start-up and shutdown characteristics.
Figures showing data plots and waveforms for
different output voltages are presented in the
following pages.
(ii) The current rating of the converter (40A)
A maximum component temperature of 120°C should
not be exceeded in order to operate within the
derating curves. Thus, the temperature at the
thermocouple location shown in Fig-12 should not
exceed 130°C in normal operation.
Note that continuous operation beyond the derated
current as specified by the derating curves may lead
to degradation in performance and reliability of the
converter and may result in permanent damage.
Thermal Considerations
Power modules operate in a variety of thermal
environments; however, sufficient cooling should
always be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability.
The thermal data presented here is based on physical
measurements taken in a wind tunnel. The test
set-up is shown in Fig-11. The preferred airflow
direction for the module is in Fig-12.
Wind Tunnel
25.4_
(1.0)
Fig-12: Preferred airflow direction and location of
hot-spot of the module (Tref).
PWBs
Power Module
76.2_
(3.0)
x
12.7_
(0.50)
Air
flow
Probe Location
for measuring
airflow and
ambient
temperature
Fig-11: Thermal test set-up
The maximum available load current, for any given
set of conditions, is defined as the lower of:
(i) The output current at which the temperature of any
component reaches 130°C, or
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Ver 1.5 May. 9, 2013