HLS30ZE(2001) Просмотр технического описания (PDF) - Power-One Inc.

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HLS30ZE
(Rev.:2001)

30A Half-Brick DC/DC Converter

Power-One Inc. 

HLS30 Series – 30A Half-Brick DC/DC Converter

48V Input

5.0V, 3.3V, 2.5V Output

Data Sheet

value of the fuse without opening. The fuse must

not be placed in the grounded input line, if any.

air, while up to 28A reliably with 200LFM forced

air.

In order for the output of the HLS30 series

converter to be considered as SELV (Safety Extra

Low Voltage) or TNV-1, according to all IEC60950

based standards, one of the following

requirements must be met in the system design:

• If the voltage source feeding the module is

SELV or TNV-2, the output of the converter

may be grounded or ungrounded.

• If the voltage source feeding the module is

ELV, the output of the converter may be

considered SELV only if the output is

grounded per the requirements of the

standard.

• If the voltage source feeding the module is a

Hazardous Voltage Secondary Circuit, the

voltage source feeding the module must be

provided with at least Basic insulation

between the source to the converter and any

hazardous voltages. The entire system,

including the HLS30 converter, must pass a

dielectric withstand test for Reinforced

insulation. Design of this type of systems

requires expert engineering and

understanding of the overall safety

requirements and should be performed by

qualified personnel.

Fig.10 HLS30ZG (5V) derating curves

Thermal Considerations

The HLS30 series converters are designed for

natural or forced convection cooling. The

maximum allowable output power of the

converters is determined by meeting the derating

criteria of all electronic components used in the

power supplies. An example of the derating

criteria for the semiconductor junction

temperature is not to exceed 120C to provide

reliable long-term operation of the converters.

Note: Please contact Power-One for more

derating criteria for other components.

The graphs in Figures 10-12 show the maximum

output current of the HLS30 series converters at

different ambient temperatures under both natural

and forced (longitudinal airflow direction, from pin

1 to pin 4) convection. As an example, from

Figure 10, the HLS30ZG operating at 55C can

deliver up to 25.5A reliably with 100LFM forced

Fig.11 HLS30ZE (3.3V) derating curves

Fig.12 HLS30ZD (2.5V) derating curves

.

Rev. 10/01

Page 7 of 8

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