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PDF IMS30 Data sheet ( Hoja de datos )
| Número de pieza | IMS30 | |
| Descripción | Dual outputs 5V & 3.3V ; 3.3V & 1.8V | |
| Fabricantes | Power-One | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de IMS30 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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IMS30 SERIES
JAN, 2001
48Vinput
Powering Communciations and Technology Dual outputs 5V & 3.3V ; 3.3V & 1.8V
Input to output electric strength test 1500 V DC
Input voltage ranges 32...75VDC for -0302
Dual output
IMS30 Series
• Industry standard pin-out
• Fixed frequency operation
• High efficiency up to 89 %
• 2" x 2" platform with 9.4 mm profile
• Low output noise
• Soft start
• Shut down input, output voltages adjustable
• Programmable input undervoltage lockout
• Synchronisation
• Outputs no-load, overload and short-circuit proof
• Operating ambient temperature –40...71o C
• Thermal protection with auto-reset (non latching)
• Emissions below EN 55022, level B
• Immunity to IEC/EN 61000-4-2,-3,-4,-5 and -6
Safety according to IEC/EN 60950, UL 1950
LGA
C Approvals pending
Summary
The IMS 30 series of board mountable 30 Watt DC-DC con-
verters has been designed according to the latest industry
requirements and standards. The converters are particu-
larly suitable for applications in industry and telecommuni-
cation where variable input voltages or high transient volt-
ages are prevalent.
Features include efficient input and output filtering with un-
surpassed transient and surge protection, low output ripple
and noise, consistently high efficiency over the entire input
voltage range, high reliability as well as excellent dynamic
response to load and line changes.
Table of Contents
Page
Summary ......................................................................... 1
Type Survey and Key Data ............................................. 2
Type Key ......................................................................... 2
Functional Description ..................................................... 2
Electrical Input Data ........................................................ 3
Electrical Ouput Data ...................................................... 4
The converters provide supplementary insulation with
SELV outputs as e.g. required in battery supported systems
where the bus voltage may exceed the SELV limit of
60 V DC. They are designed and built according to the in-
ternational safety standards IEC/EN 60950, UL 1950, CAN/
CSA C22.2 No.950-95. Approvals pending.
The circuit comprises integrated planar magnetics and all
components are automatically assembled and soldered
onto a single PCB without any wire connections. The pro-
prietary magnetic feedback solution ensures maximum reli-
abilityand repeatability in the control loop over all operating
conditions. Careful considerations of possible thermal
stresses ensure the absence of hot spots providing long life
in environments where temperature cycles are a reality. The
thermal design allows operation at full load up to an ambi-
ent temperature of 71°C in free air without using any potting
material.
Page
Auxiliary Functions .......................................................... 6
Electromagnetic Compatibility (EMC) ............................. 7
Immunity to Environmental Conditions ............................ 8
Mechanical Data ............................................................. 9
Safety and Installation Instructions ............................... 10
Description of Option ..................................................... 11
1/11 10130 DC
1 page  
Fig 6: Cross regulation and load regulation for double output units.
Unspecified Output Current (A)
Regulation window for unspecified output (Tab 5a,5b)
100 %
+/-4%
+/-3%
+/-1%
Specified Output Current (A)
30W Output power limit line
50 %
1.0 2.0 3.0 4.0 5.0 6.0
Specified Output Current (A)
5/11
5 Page 
Table 14: Insulation concept leading to an SELV output circuit
Conditions Front end
DC-DC converter
Result
Supply
voltage
Minimum required grade Maximum
of isolation, to be provided DC output
by the AC-DC front end, voltage
including mains supplied from the
battery charger
front end 1
Minimum required safety
status of the front end
output circuit
Measures to achieve the
specified safety status of the
output circuit
Safety status of
the DC-DC
converter output
circuit
Mains
Basic
250 V AC
60 V
Earthed SELV circuit 2
Operational insulation (pro- SELV circuit
vided by the DC-DC converter)
>60 V
ELV circuit
Hazardous voltage
secondary circuit
Input fuse 3 output suppressor
diode(s) 4, and earthed
output circuit(s) 2
Earthed SELV
circuit
Double or reinforced
60 V
SELV circuit
Operational insulation (pro- SELV circuit
vided by the DC-DC converter)
>60 V
TNV-2 circuit
Supplementary insulation,
Double or reinforced insu- based on the maximum input
lated unearthed hazardous voltage (provided by the
voltage secondary circuit 5 DC-DC converter)
1 The front end output voltage should match the specified input voltage range of the DC-DC converter.
2 The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950.
3 The installer shall provide an approved fuse (type with the lowest rating suitable for the application) in a non-earthed input line directly
at the input of the DC-DC converter (see fig.: Schematic safety concept). For UL’s purpose, the fuse needs to be UL-listed. See also:
Input Fuse.
4 Each suppressor diode should be dimensioned in such a way, that in the case of an insulation fault the diode is able to limit the output
voltage to SELV (<60 V) until the input fuse blows (see fig.: Schematic safety concept).
5 Has to be insulated from earth by basic insulation according to the relevant safety standard, based on the maximum output voltage
from the front end.
~
Mains
~
AC-DC
front
end
Fuse
Battery
Earth
connection
DC-DC
con-
verter
10004
+
Suppressor
diode SELV
–
Earth
connection
Fig. 13
Schematic safety concept. Use fuse, suppressor diode
and earth connection as per table: Safety concept leading
to an SELV output circuit.
Description of Option
Option i Inhibit
Excluces shut down
The output(s) of the converter may be enabled or disabled
by means of a logic signal (TTL, CMOS, etc.) applied to the
inhibit pin. No output voltage overshoot will occur when the
unit is turned on. If the inhibit function is not required the
inhibit pin should be connected to Vi– to enable the output
(active low logic, fail safe).
Converter operating:
Converter inhibited or
inhibit pin left open circuit
–10 V...0.8 V
2.4...5 V
06070
Vi+
i
Vi –
Fig. 14
If the inhibit is not used the inhibit pin should be con-
nected to Vi–
11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet IMS30.PDF ] | |
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