PKJ 4518 PIT
/
PKJ 4318 PIT
/
PKJ 4218 PIT
Advanced Specification
15-30A DC/DC Power Modules
48V Input, 1.8V Output
•
•
•
•
•
•
•
High efficiency 87.5% Typ (15A)
at full load
Industry standard footprint
Max case temperature +100ºC
Wide input voltage range according
to ETSI specifications
High power density, up to 55W/in
3
1,500 Vdc isolation voltage
MTBF > 3 million hours in
accordance with Bellcore TR-332
The PKJ series represents a “third generation” of High
Density DC/DC Power Modules providing high efficiencies.
To achieve this high efficiency, Ericsson uses proprietary drive
and control circuits with planar magnetics and low resistivity
multilayer PCB technology, and a patent pending topology
with active rectification. The PKJ series can be used without
bulky and height consuming heatsinks, resulting in a lower
total cost. This also provides narrow board spacing for elec-
tronic, shelf based applications.
The products are in the industry standard package size and
offer a beneficial alternative to competing products on the
market. Because for certain applications they may not
require heatsinks, they are ideal for cost sensitive or high-
density applications.
The PKJ series also offers the flexibility of using a heatsink
when needed, enabling reduced airflow, extended reliability
or higher ambient temperature operation in a wide range of
48V and 60V DC powered systems. Similar to other
Ericsson Power Modules, the PKJ series includes an under-
voltage shut down facility, protecting the associated batteries
from being too deeply discharged. The PKJ series also offers
over-voltage protection, over-temperature protection and is
short circuit proof.
These products are manufactured using highly automated
manufacturing lines with a world-class quality commitment
and a five-year warranty. Ericsson Microelectronics has been
an ISO 9001 certified supplier since 1991.
For product program please see back cover.
General
Connections
Designation
-In
Case
RC
+In
-Out
-Sen
Trim
+Sen
+Out
Function
Negative input
Connected to base plate
Remote control (primary).
To turn-on and turn-off the output
Positive input
Negative output
Negative remote sense
(if sense is not needed, connect to -Out)
Output voltage adjust
Positive remote sense
(if sense is not needed, connect to +Out)
Positive output
Input
T
C
< T
Cmax
Characteristics
V
I
V
Ioff
V
Ion
C
I
I
Iac
Input voltage
range
Turn-off input
voltage
Turn-on input
voltage
Input capacitance
Reflected
ripple current
Maximum input
current
5 Hz to 20 MHz
Ramping from
higher voltage
Ramping from
lower voltage
Conditions
min
36
31
33
34
2.35
20
36
typ max
75
Unit
Vdc
Vdc
Vdc
µF
mA p-p
I
Imax
Weight
V
I
= V
I
min
27 W
36 W
54 W
I
O
= 0
RC open
2.5
0.6
1.0
1.3
2.0
7.5
1.5
A
85 grams
Case
P
Ii
P
RC
Input idling power
Input
stand-by power
V
I
= 50V
(turned off with RC)
Maximum input
voltage on trim pin
W
W
Aluminum baseplate with metal standoffs.
Pins
Pin material: Brass
Pin plating: Tin/Lead over Nickel.
TRIM
6
Vdc
Mechanical Data
PKJ 4518 PIT/PKJ 4318 PIT/PKJ 4218 PIT
T
C
= -40...+100°C, V
I
= 36...75 V dc unless otherwise specified.
Output
Characteristics
Conditions
Device
min
V
Oi
Output voltage initial
setting and accuracy
Output adjust range
I
O
V
O
Output current
Output voltage
tolerance band
Line regulation
Load regulation
V
tr
Load transient
voltage deviation
Load transient
recovery time
Start-up time
Current limit threshold
Short circuit current
Output ripple and noise
Supply voltage
rejection (ac)
Over voltage protection
I
O
= I
Omax
f < 20 MHz
f<1kHz
From V
I
connection to V
O
= 0.9 x V
Onom
V
O
= 0.96 V
Onom
@ T
C
<100°C
PKJ
PKJ
PKJ
PKJ
PKJ
PKJ
Output
typ
1.8
max
1.83
Unit
T
C
= +25°C, V
I
= 53V, I
O
= I
Omax
All
1.77
V
I
O
= 0 to I
Omax
All
PKJ 4518 PIT
PKJ 4318 PIT
PKJ 4218 PIT
1.44
0
0
0
2.0
30
20
15
V
A
V
I
O
= 0 to I
Omax
All
1.71
1.89
I
O
= I
Omax
V
I
= 53V, I
O
= 0 to I
Omax
Load step = 0.25 x I
Omax
dI/dt = 1A/µs
All
All
All
2
2
±100
15
15
mV
mV
mV
peak
t
tr
All
50
µs
t
s
I
Iim
I
SC
V
Oac
SVR
All
4518
4318
4218
4518
4318
4218
PIT
PIT
PIT
PIT
PIT
PIT
30.5
20.5
15.5
20
35
24
18
36
25
19
30
40
29
21
40
29
21
ms
A
A
mVp-p
dB
All
All
-50
60
120
OVP
Vin = 50V
All
2.5
2.9
V
Miscellaneous
Characteristics
η
P
d
Efficiency
Power dissipation
Conditions
T
A
= +25°C, V
I
= 53V, I
O
= I
Omax
I
O
= I
Omax
, V
I
= 53V
Device
PKJ 4518 PIT
PKJ 4318 PIT
PKJ 4218 PIT
PKJ 4518 PIT
PKJ 4318 PIT
PKJ 4218 PIT
min
typ
86
87
87.5
8.8
5.4
3.9
max
Unit
%
W
Absolute Maximum Ratings
Characteristics
T
C
T
S
V
I
Case temperature
@ max output power
Storage temperature
Continuous input voltage
min
-40
-40
-0.5
1,500
15
1
max
+100
+125
+80
Unit
°C
°C
Vdc
Vdc
Vdc
A
2
s
Thermal Data
PKJ 4518 PIT Efficiency (typ)
90
36V
88
86
53V
75V
V
ISO
Isolation voltage
(input to output test voltage)
V
RC
Remote control voltage
I
2
t
Inrush transient
84
82
80
0
10
20
30
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.
Product Program
V
I
48/60 V
48/60 V
48/60 V
V
O
/I
O
1.8V/30A
1.8V/20A
1.8V/15A
P
Omax
54W
36W
27W
Ordering Number
PKJ 4518 PIT
PKJ 4318 PIT
PKJ 4218 PIT
The PKJ 4000 DC/DC power modules will be available with the different
options listed in the Product Options table.
Please check with the factory for availability.
Product Options
Option
Negative remote on/off logic
Industry Standard Trim,
(i.e. V
out
Adjust)
Positive remote on/off logic
Lead length of 0.145" ± 0.010"
Suffix
–
Example
PKJ 4518 PIT
P
LA
PKJ 4518 PIPT
PKJ 4518 PITLA
Ericsson Microelectronics’ Sales Offices:
Brazil:
Denmark:
Finland:
France:
Germany:
Great Britain:
Hong Kong:
Italy:
Japan:
Norway:
Russia:
Spain:
Sweden:
United States:
Phone: +55 11 681 0040
Phone: +45 33 883 109
Phone: +358 9 299 4098
Phone: +33 1 4083 7720
Phone: +49 211 534 1516
Phone: +44 1793 488 300
Phone: +852 2590 2356
Phone: +39 2 7014 4203
Phone: +81 3 5216 9091
Phone: +47 66 841 906
Phone: +7 095 247 6211
Phone: +34 91 339 1858
Phone: +46 8 721 6258
Phone: +1 877 374 2642
Fax: +55 11 681 2051
Fax: +45 33 883 105
Fax: +358 9 299 4188
Fax: +33 1 4083 7741
Fax: +49 211 534 1525
Fax: +44 1793 488 301
Fax: +852 2590 7152
Fax: +39 2 7014 4260
Fax: +81 3 5216 9096
Fax: +47 66 841 909
Fax: +7 095 247 6212
Fax: +34 91 339 3145
Fax: +46 8 721 7001
Fax: +1 972 583 8355
Information given in this data sheet is believed
to be accurate and reliable. No responsibility is
assumed for the consequences of its use nor for
any infringement of patents or other rights of
third parties which may result from its use. No
license is granted by implication or otherwise
under any patent or patent rights of Ericsson
Inc. These products are sold only according to
Ericsson Inc.’s general conditions of sale, unless
otherwise confirmed in writing.
The contents of this document are subject
to revision without notice due to continued
progress in design and manufacturing.
Ericsson Inc.
Microelectronics
701 North Glenville Drive
Richardson, Texas 75081
Phone: 877-ERICMIC
www.ericsson.com/micro
Advanced Specification
AE/LZT 108 3967 R1
© Ericsson Inc., April 2000
51mcu
京公网安备 11010802033920号
EEWORLD
