PKU5313EPI Ericsson Power Modules, PKU5313EPI Datasheet - Page 20

• Manufacturer Part Number: PKU5313EPI
• Description: DC/DC Converters & Regulators 33W 12V OUT 2.75A 33.02x22.86x7.50 mm
• Manufacturer: Ericsson Power Modules
• Series: PKU-Er

Specifications of PKU5313EPI

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

Thermal Consideration
General
The products are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
For products mounted on a PCB without a heat sink attached,
cooling is achieved mainly by conduction, from the pins to the
host board, and convection, which is dependant on the airflow
across the product. Increased airflow enhances the cooling of
the product. 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 product is tested on a 254 x 254 mm, 35 µm (1 oz),
8-layer test board mounted vertically in a wind tunnel with a
cross-section of 608 x 203 mm.
Proper cooling of the product can be verified by measuring the
temperature at position P1. The temperature at this position
should not exceed the max values provided in the table below.
The number of points may vary with different thermal design
and topology.
See Design Note 019 for further information.
E
Position
P1
Prepared (also subject responsible if other)
MICOSPE
Approved
EAB/FJB/GMF (Natalie Johansson)
PKU 5000E series
DC/DC converters, Input 18-72 V, Output up to 10 A/35 W
I
= 53 V.
Description
Opto coupler
Temp. limit
95º C
Checked
MICMALE
Open frame
Definition of reference temperature T
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum T
meassured at the reference point P1 are not allowed and may
cause degradation or permanent damage to the product. T
also used to define the temperature range for normal operating
conditions. T
safety margins, proper operation and high reliability ot the
product.
Connections
Ericsson Internal
PRODUCT SPECIFICATION
No.
3/1301-BMR 6600 Uen
Date
2009-02-20
Pin
1
2
3
4
6
8
P1
Designation
+In
RC
-In
-Out
Vadj
+Out
is defined by the design and used to guarantee
Technical Specification
EN/LZT 146 391 R4B May 2009
© Ericsson AB
Rev
A
Reference
Function
Positive Input
Remote control
Negative Input
Negative Output
Output voltage adjust
Positive Output
P1
P1
,
4 (5)
20
P1
is