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PDF HLS30ZD Data sheet ( Hoja de datos )
| Número de pieza | HLS30ZD | |
| Descripción | HLS30 Series . 30A Half-Brick DC/DC Converter 48V Input 5.0V/ 3.3V/ 2.5V Output | |
| Fabricantes | Power-One | |
| Logotipo |  |
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HLS30 Series – 30A Half-Brick DC/DC Converter
48V Input
5.0V, 3.3V, 2.5V Output
Data Sheet
Features
Applications
• Distributed power architectures
• Telecommunications equipment
• LAN/WAN applications
• Data processing applications
• Low profile (-11mm) single board design
• 1500VDC input to output isolation meets
basic insulation
• High efficiency - to 92% at full load
• Start-up into high capacitive load
• Low conducted and radiated EMI
• Output overcurrent protection
• Output overvoltage protection
• Overtemperature protection
• Remote sense
• Set point accuracy ± 1%
• Remote on/off (primary referenced), positive
or negative logic
• Output voltage trim adjust, positive or
negative
• UL 1950 Recognized, CSA 22.2 No. 950-95
certified, TUV IEC950
Description
The new HLS30 series of high-density, single-output DC/DC converters, convert standard telecom and
datacom voltages into isolated low voltage outputs. High efficiencies and a patent-pending board design
create superior thermal transfer that enhances product reliability and eliminates the need for a heatsink.
Selection Chart
Model
Input
Input
Output Output rated
Output
Typical
voltage
VDC
current,
max
ADC
voltage
VDC
current I rated Ripple/Noise,
ADC
mV p-p
Efficiency
@ I rated %
HLS30ZG
36-75
4.8
5.0
30
100 91
HLS30ZE
36-75
3.3
3.3
30
75 89
HLS30ZD
36-75
2.5
2.5
30
50 88
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment
should be followed.
Rev. 10/01
Page 1 of 8
1 page  
HLS30 Series – 30A Half-Brick DC/DC Converter
48V Input
5.0V, 3.3V, 2.5V Output
Data Sheet
Typical Application
Figure 7 below shows the recommended
connections for the HLS30 series converter.
Fig.7 Typical application of HLS30 series
The HLS30 series converters do not require any
external components for proper operation.
However, if the distribution of the input voltage to
the converter contains significant inductance, the
capacitor C1 may be required to enhance
performance of the converter. A minimum of a
47μF electrolytic capacitor with the ESR<0.7Ω is
recommended for the HLS30 series.
If magnitude of the inrush current needs to be
limited, see the “Inrush Current Control
Application Note” on Power-One website
www.power-one.com.
For output decoupling we recommend to use a
10μF tantalum and a 1μF ceramic capacitors
connected directly across the output pins of the
converter. Note, that the capacitors do not
substitute the filtering required by the load.
resistor between the ON/OFF pin and the +Vin
pin.
When the ON/OFF pin is used to achieve remote
control, the user must take care to insure that the
pin reference for the control is really the -Vin pin.
The control signal must not be referenced ahead
of EMI filtering or remotely from the unit. Optically
coupling the information and locating the optical
coupler directly at the module will solve any of
these problems.
Note:
If the ON/OFF pin is not used, it can be left
floating (positive logic), or connected to the -Vin
pin (negative logic).
Output Voltage Trim
The trim feature allows the user to adjust the
output voltage from the nominal value. This can
be used to compensate distribution drops,
perform margining in production, or accommodate
other requirements when output voltage needs to
be adjusted from the nominal. There are two trim
options available in the HLS30 series.
Standard Negative Trim (No suffix)
The negative trim method is the Power-One
standard. The HLS30 standard trim units trim up
with a resistor from the TRIM pin to the Sense pin
and trim down with a resistor from the TRIM Fig.8
HLS30 series negative trim schematic pin to the
+Sense pin as shown in Figure 8.
Shutdown Feature Description
The ON/OFF pin in the HLS30 series converters
functions as a normal soft shutdown. It is
referenced to the –Vin pin (see Figure 7). With
positive logic, when the ON/OFF pin is pulled low,
the output is turned off and the unit goes into a
very low input power mode. With negative logic,
when the ON/OFF pin is pulled low, the unit is
turned on.
An open collector switch is recommended to
control the voltage between the ON/OFF pin and
the -Vin pin of the converter. The ON/OFF pin is
pulled up internally, so no external voltage source
is required. The user should avoid connecting a
Fig. 8 HLS30 series negative trim schematic
Rev. 10/01
Page 5 of 8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HLS30ZD.PDF ] | |
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