PKU5311ESI Ericsson Power Modules, PKU5311ESI Datasheet - Page 3

• Manufacturer Part Number: PKU5311ESI
• Description: DC/DC Converters & Regulators 35W 7V OUT 7A 33.02x22.86x7.50 mm
• Manufacturer: Ericsson Power Modules
• Series: PKU-Er

Specifications of PKU5311ESI

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

E
Prepared (also subject responsible if other)
EAB/FAC/P Jakub Brindell
Approved
EAB/FAC/P Jakub Brindell
PKU 5000E series
DC/DC converters, Input 18-72 V, Output up to 10 A/35 W
Safety Specification
General information
Ericsson AB DC/DC converters and DC/DC regulators are
designed in accordance with safety standards
IEC/EN/UL60950, Safety of Information Technology
Equipment.
IEC/EN/UL60950 contains requirements to prevent injury
or damage due to the following hazards:
On-board DC-DC converters are defined as component
power supplies. As components they cannot fully comply
with the provisions of any Safety requirements without
“Conditions of Acceptability”. It is the responsibility of the
installer to ensure that the final product housing these
components complies with the requirements of all
applicable Safety standards and Directives for the final
product.
Component power supplies for general use should comply
with the requirements in IEC60950, EN60950 and
UL60950 “Safety of information technology equipment”.
There are other more product related standards, e.g.
EC61204-7 “Safety standard for power supplies",
IEEE802.3af “Ethernet LAN/MAN Data terminal equipment
power”, and ETS300132-2 “Power supply interface at the
input to telecommunications equipment; part 2: DC”, but all
of these standards are based on IEC/EN/UL60950 with
regards to safety.
Ericsson AB DC/DC converters and DC/DC regulators are
UL60950 recognized and certified in accordance with
EN60950.
The flammability rating for all construction parts of the
products meets requirements for V-0 class material
according to IEC 60695-11-10.
The products should be installed in the end-use equipment,
in accordance with the requirements of the ultimate
application. Normally the output of the DC/DC converter is
considered as SELV (Safety Extra Low Voltage) and the
input source must be isolated by minimum Double or
Reinforced Insulation from the primary circuit (AC mains) in
accordance with IEC/EN/UL60950.
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Electrical shock
Energy hazards
Fire
Mechanical and heat hazards
Radiation hazards
Chemical hazards
Checked
EJAKBRI
Ericsson Internal
PRODUCT SPECIFICATION
No.
1/1301-BMR 660 00+ Uen
Date
2009-05-11
Isolated DC/DC converters
It is recommended that a slow blow fuse with a rating twice
the maximum input current per selected product be used at
the input of each DC/DC converter. If an input filter is used
in the circuit the fuse should be placed in front of the input
filter.
In the rare event of a component problem in the input filter
or in the DC/DC converter that imposes a short circuit on
the input source, this fuse will provide the following
functions:
The galvanic isolation is verified in an electric strength test.
The test voltage (V
1500 Vdc or 2250 Vdc for 60 seconds (refer to refer to
Absolute maximum ratings).
Leakage current is less than 100 µA at nominal input
voltage.
24 V DC systems
The input voltage to the DC/DC converter is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
48 and 60 V DC systems
If the input voltage to Ericsson AB DC/DC converter is 75
Vdc or less, then the output remains SELV (Safety Extra
Low Voltage) under normal and abnormal operating
conditions.
Single fault testing in the input power supply circuit should
be performed with the DC/DC converter connected to
demonstrate that the input voltage does not exceed
75 Vdc.
If the input power source circuit is a DC power system, the
source may be treated as a TNV2 circuit and testing has
demonstrated compliance with SELV limits and isolation
requirements equivalent to Basic Insulation in accordance
with IEC/EN/UL60950.
Non-isolated DC/DC regulators
The input voltage to the DC/DC regulator is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
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Isolate the faulty DC/DC converter from the input
power source so as not to affect the operation of
other parts of the system.
Protect the distribution wiring from excessive
current and power loss thus preventing hazardous
overheating.
Technical Specification
EN/LZT 146 391 R4B May 2009
© Ericsson AB
Rev
E
iso
) between input and output is
Reference
3 (4)
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