PKL4316PIT Ericsson Power Modules, PKL4316PIT Datasheet - Page 34

• Manufacturer Part Number: PKL4316PIT
• Description: Module DC-DC 1-OUT 28V 11A 310W 11-Pin Half-Brick Tray
• Manufacturer: Ericsson Power Modules
• Type: Step Downr

Specifications of PKL4316PIT

• Package: 11Half-Brick
• Output Current: 11 A
• Output Voltage: 28 V
• Input Voltage: 48/60 V
• Number Of Outputs: 1
• Output Power: 310 W
• Switching Regulator: Yes

Thermal Consideration
General
The converters are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
Cooling is achieved mainly by conduction, from the pins to
the host board, and convection, which is dependant on the
airflow across the converter. Increased airflow enhances the
cooling of the converter.
Operating information continued
Parallel Operation
Two converters may be paralleled for redundancy if the total
power is equal or less than P
parallel the converters without using external current sharing
circuits.
See Design Note 006 for detailed information.
Remote Sense
The DC/DC converters have remote sense that can be used
to compensate for voltage drops between the output and the
point of load. The sense traces should be located close to the
PCB ground layer to reduce noise susceptibility. The remote
sense circuitry will compensate for up to 10% voltage drop
between output pins and the point of load.
If the remote sense is not needed +Sense should be
connected to +Out and -Sense should be connected to -Out.
Over Temperature Protection (OTP)
The converters are protected from thermal overload by an
internal over temperature shutdown circuit. When the
baseplate or case temperature exceeds 110°C the converter
will shut down immediately(latching). The converter can be
restarted by cycling the input voltage or using the remote
control function.
Over Voltage Protection (OVP)
The converters have output over voltage protection that will
shut down the converter in over voltage conditions. The
converter can be restarted by cycling the input voltage or
using the remote control function.
Over Current Protection (OCP)
The converters include current limiting circuitry for protection
at continuous overload.
The output voltage will decrease towards zero for output
currents in excess of max output current (max I
converter will resume normal operation after removal of the
overload. The load distribution should be designed for the
maximum output short circuit current specified.
Prepared (also subject responsible if other)
EQUENXU
Approved
SEC/D (Julia You)
PKL 4000 PI series
DC/DC converters, Input 36-75 V, Output 100 A/300 W
O
max. It is not recommended to
O
). The
Checked
EZYPING
See Design Note 019 for further information.
The Output Current Derating graph found in the Output
section for each model provides the available output current
vs. ambient air temperature and air velocity at V
The DC/DC converter is tested on a 254 x 254 mm,
35 μm (1 oz), 16-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 305 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at positions P1. The temperature
at these positions should not exceed the max values provided
in the table below.
Note that the max value is the absolute maximum rating
(non destruction) and that the electrical Output data is
guaranteed up to T
PRODUCT SPECIFICATION
No.
3/1301-BMR 632 Uen
Date
2007-01-11
Position
P
1
Device
Baseplate
Technical Specifi cation
EN/LZT 146 311 R2E June 2007
© Ericsson Power Modules AB
Rev
B
ref
+100°C.
Designation
T
ref
Reference
max value
100º C
in
= 53 V.
3 (5)
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