DC/DC converter
3.3 V/15 A output
48 V input
Key Features
50 W output power
Surface mountable
Effi ciency typ. 90 %
Meets lead-free soldering process (260 C)
Low profi le, 7.5 mm (0.295 in.)
Negative or Positive Remote Control
Remote sense
PKD 4510 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.
2
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
Key data
T
C
= -25 ... +90 and V
I
= 36 ... 75 V unless otherwise specifi ed.
General
Characteristics Symbol Conditions Min Typ Max Unit
Effi ciency I
O
max
, V
I
= 53 V, T
C
= 25 C 88 90 %
Power dissipation Pd I
O
max
, V
I
= 53 V, T
C
= 25 C 6.7 W
Input to Output Isolation 1500 VDC
Switching frequency fs 175 180 185 kHz
Input
Characteristics Symbol Conditions Min Typ Max Unit
Input Voltage V
I
36 53 75 V
Output
Characteristics Symbol Conditions Min Typ Max Unit
Output voltage initial settings V
O
i
I
O
max
, V
I
= 53 V, T
C
= 25 C 3.28 3.30 3.32 V
Output voltage adjust range V
O
adj
I
O
= 0.1 ... 1.0 x
I
O
max
3.0 3.6 V
Output ripple & noise V
O
ac I
O
max
, 20 Hz ... 5 MHz 50 100 mVp-p
Line regulation I
O
max
5 mV
Load regulation I
O
= 0.01...1.0 I
O
max
, V
I
= 53 V 5 mV
Load transient recovery time Ttr I
O
= 0.1...1.0 I
O
max
, V
I
= 53 V, step = 50 % 100 s
Load transient voltage Vtr I
O
= 0.1...1.0 I
O
max
, V
I
= 53 V, +300 mV
step = 50 %, dI/dt = 5 A/s -300
Ramp-up time Tr I
O
= 0.1...1.0 I
O
max
, V
I
= 53 V 20 ms
Start-up time Ts I
O
= 0.1...1.0 I
O
max
, V
I
= 53 V 25 ms
Output current I
O
15 A
Max output power P
O
max
Calculated value 50 W
Current limiting threshold Ilim T
C
< T
C
max 18 A
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
Advanced Product Information
EN/LZT 146 015 R1A
Ericsson Power Modules AB, February 2003
Advanced product information is based on limited pre-production data. Information provided is believed to be
accurate and reliable. Ericsson Power Modules reserves the right to make changes to the product, or information
contained herein, without notice.
Effi ciency
Mechanical data
Connections
T
C
= 25C
(%)
Output Current [A]
0
2
4
6
8
10
12
14
16
70
76
82
88
94
100
V
I
= 36 V
V
I
= 53 V
V
I
= 75 V
max 50.4
[ max 1.984 ]
7.5
[ 0.295 ]
24
13
12
1
46.3
[ 1.822 ]
dimensions in mm [In.]
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.
PDF 
ZIP