DC/DC converters
up to 20A / 50W
48 V Input
PKD 4000 ASI
E
The PKD 4000 SI series of DC/DC power modules
are intended to be used as distributed power sources
in decentralized 48/60VDC power systems. The PKD
series uses a ceramic substrate with thickfi lm tech-
nology and a high degree of silicon in te gra tion. That,
together with the electrical design using synchronous
rectifi cation gives good thermal management, high
reliability and high effi ciency.
The high effi ciency makes it possible to operate over a
wide temperature range without a heatsink. Excellent
thermal management is also achieved through the use
of the ceramic substrate and a lead-frame with a large
amount of pin connections to the board. The high
reliability and the low profi le of the PKD series makes
them particularly suited for In for ma tion Technology
and Telecom (IT&T) applications with board spacing
down to 15mm (0.6 in.).
These products are manufactured using highly au to -
mat ed manufacturing lines with a world-class quality
commitment and a fi ve-year warranty.
Ericsson Power Modules AB is an ISO 9001/14001
certifi ed supplier.
Key Features
50 W output power
Surface mountable
Effi ciency typ. 90 % at 3.3V out
Meets lead-free soldering process (260 C)
Low profi le, 7.5 mm (0.295 in.)
Negative or Positive Remote Control
Remote sense
Ericsson Power Modules Americas
SE-141 75 Kungens Kurva, Sweden Ericsson Inc., Power Modules
Telephone: +46 8 568 69620 +1-877-374-2642
For local sales contacts, please refer to our website Asia/Pacifi c
www.ericsson.com/powermodules Ericsson Ltd.
or call: Int +46 8 568 69620, Fax: +46 8 568 69599 +852-2590-7152
New Product Overview
EN/LZT 146 027 R1A
Ericsson Power Modules AB, May 2003
New Product Overview is intended for discussion to determine interest and requirements. Information provided is
believed to be accurate and reliable. Ericsson Power Modules makes no commitment to sample or manufacture for sale
these products and reserves the right to make changes to the product, or information contained herein, without notice
Mechanical data
Connections
Product Program
Input Voltage
Output Voltage
Output Current
Output Power
Part No.
Comment
1.0 V
20 A
20 W
PKD 4218N SI
1)
1.2 V
20 A
24 W
PKD 4218L ASI
1)
1.5 V
20 A
30 W
PKD 4318H ASI
1)
36-75 V
1.8 V
20 A
36 W
PKD 4318G ASI
1)
2.5 V
15 A
38 W
PKD 4319 ASI
1)
3.3 V
15 A
50 W
PKD 4510 ASI
samples available
5 V
10 A
50 W
PKD 4511 ASI
1)
1) Preliminary product code, samples available on request
Coplanarity within 0,1 mm
Dimensions in mm [inch]
max 50,4
[ max 1.984 ]
7,5
[ 0,295 ]
24
13
12
1
46,3
1,82
Soldering pattern
4,4
[ 0,173 ]
42
[ 1,654 ]
40,8
[ 1.606 ]
50,8
[ 2,0 ]
2,8(24x)
[ 0,11 9 ]
1,2(2x)
[ 0,047 ]
0,6(20x)
[ 0,024 ]
Pin
Symbol
Description
2
+In
Positive input
3
-In
Negative input
5
RC
Remote control pin
6
RC logic
Select pin for neg/pos RC 2)
15
+Sen
Positive remote sense
16
Vadj
Output voltage adjust
17
-Sen
Negative remote sense
18-20
-Out
Negative output
21-23
+Out
Positive output
1,12,13,24 Case connection 1)
4,7-11,14 Not connected
1)
Case is fl oating and may be connected either to +VIn ;
-VIn ; +Vout ; -Vout to optimize EMI performance.
2)
Connect to -In for negative logic or leave open for
positive logic on RC pin.
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