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Ericsson

PKE4323PI Datasheet Preview

PKE4323PI Datasheet

25-40 W DC/DC Power Modules

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PKE 4000 I
25–40 W DC/DC Power Modules
48 V Input Series
• Single, dual and triple output
• 10.7 mm (0.42 in.), allows 0.8 in.
board spacing
1,500 V dc isolation voltage
• MTBF > 2 million hours at +75 °C
case temperature
• Complete, no extra filters or heatsinks
required
The 25–40 watts PKE 4000 series hybrid DC/DC
power modules are especially designed for decentra-
lized 48/60 VDC power distribution systems with
distributed on-board DC/DC converters in
applications with high temperature and isolation
requirements.
By using a thickfilm technology, which provides a
high degree of integration as well as an efficient
thermal management and by utilizing a 300 kHz
switching frequency technology based on proprietary
drive & control chips, the highly reliable products
conform to the most stringent telecom and datacom
requirements in harsh environment applications.
Input to output isolation is as high as 1,500 Vdc and
mechanical ruggedness in conformance to IEC 68-2
– is close to the requirements for discrete
components. The converters can operate in free
convection with full output power at ambient
temperatures from –45 to +85°C, making the
products ideal for the most de-manding temperature
requirements in both indoor and outdoor tele/
datacom applications.
These products are manufactured using highly
automated manufacturing lines with a world-class
quality commitment and a five-year warranty.
Ericsson Microelectronics AB has been an ISO 9001
certified supplier since 1991. For a complete product
program please reference the back cover.
E




Ericsson

PKE4323PI Datasheet Preview

PKE4323PI Datasheet

25-40 W DC/DC Power Modules

No Preview Available !

General
Absolute Maximum Ratings
Characteristics
TC Case temperature @ max output power1)
min
max
+ 115
Unit
°C
TS Storage temperature
VI Input voltage
VISO
Isolation voltage
(input to output test voltage)
– 55
– 0.5
1,500
+125
+ 75
°C
V dc
V dc
VRC Remote control voltage pin 1
0 + 5 V dc
Vadj Output adjust voltage pin 10
0 VO V dc
Vtr Transient input energy @ TA = +25 °C
1.3 Ws
Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes
referred to as no destruction limits, are normally tested with one parameter at a time exceeding the limits of Output
data or Electrical Characteristics. If exposed to stress above these limits, function and performance may degrade in an
unspecified manner.
Input TC < TC max
Characteristics
Conditions
VI Input voltage range2)
VI off
Turn-off input voltage (See Operating Information)
VI on
rI rush
Turn-on input voltage
Equivalent inrush
current resistance
(See Operating Information)
CI Input capacitance
Id Quiscent drain current IO =0,TC = –0...+95°C
min typ max
38 72
32
33
30
1.8
15 30
Unit
V
V
V
mW
mF
mA
Environmental Characteristics
Characteristics
Vibration
(Sinusoidal)
Shock
(Half sinus)
Bump
(Half sinus)
Temperature
change
Damp heat
Heat/humidity
IEC 68-2-6 Fc
IEC 68-2-27 Ea
IEC 68-2-29 Eb
IEC 68-2-14 Na
IEC 68-2-3 Ca
IEC 68-2-3 Ca
with bias
Test procedure & conditions
Frequency
Amplitude
Acceleration
Number of cycles
10…500 Hz
0.75 mm
10 g
10 in each axis
Peak acceleration
Shock duration
200 g
3 ms
Peak acceleration
Bump duration
Number of bumps
40 g
6 ms
1000 in 6 directions
Temperature
Number of cycles
–40°C…+125°C
10
Temperature
Duration
40°C
56 days
Temperature
Humidity
Duration
85°C
85% RH
500 hours
Safety
The PKE 4000 I Series DC/DC power
modules are designed in accordance with
EN 60 950 Safety of information technology
equipment including electrical business equip-
ment, and certified by SEMKO.
The isolation is an operational insulation
in accordance with EN 60 950.
The PKE DC/DC power modules are re-
cognized by UL and meet the applicable
requirements in UL 1950 Safety of
information technology equipment, the
applicable Canadian safety requirements
and UL 1012 Standard for power supplies.
The DC/DC power module shall be
installed in an end-use equipment and is
intended to be supplied by isolated
secondary circuitry and shall be installed
in compliance with the requirements of
the ultimate application. When the
supply to the DC/DC power module meets
all the requirements for SELV (<60Vdc),
the output is considered to remain within
SELV limits (level 3). If connected to a
60 V DC power system, reinforced
insulation must be provided in the power
supply that isolates the input from the ac
mains. Single fault testing in the power
supply must be performed in combination
with the DC/DC power module to
demonstrate that the output meets the
requirement for SELV. One pole of the
input and one pole of the output is to be
grounded or both are to be kept floating.
The terminal pins are only intended for
connection to mating connectors of
internal wiring inside the end-use
equipment.
These DC/DC power modules may be used
in telephone equipment in accordance
with paragraph 34 A.1 of UL 1459
(Standard for Telephone Equipment,
second edition).
The isolation voltage is a galvanic
isolation and is verified in an electric
strength test. Test voltage between input
and output is 1,500 V dc.
The capacitor between input and output
has a value of 4.7 nF and the leakage
current is less than 1mA @ 50 Vdc.
Flammability ratings of the terminal
support and internal plastic construction
details meet UL 94V-0.
Notes:
1) Corresponding ambient temp. range (TA) at full output power is – 45 to +85 °C. (Exceptions: PKE 4210 PI
= – 45 to +75 °C, PKE 4411PI and PKE 4431 PI = – 45 to +60 °C.)
2) The input voltage range 38...72 V meets the requirements in the European Telecom Standard prETS 300 132-2
for Normal input voltage range in 48 V and 60 V DC power systems, –40.5...–57.0 V and –50.0...–72.0 V respec-
tively. At input voltages exceeding 72 V (abnormal voltage) the power loss will be higher than at normal input voltage
and TC must be limited to max +90°C. Absolute max continuous input voltage is 75 V dc. Output characteristics will
be marginally affected at input voltages exceeding 72 V.
2 EN/LZT 146 26 R1A (Replaces EN/LZT 137 31 R1) © Ericsson Microelectronics AB, June 2000


Part Number PKE4323PI
Description 25-40 W DC/DC Power Modules
Maker Ericsson
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