PKG 4000 I
DC/DC converter
Input 36-72 Vdc
Output up to 15A/60W
• Size 74.7x63.5x11.0 mm
(2.94x2.50x0.433 in.)
• Efficiency typ 86% (5 V) at full load
• 1500 Vdc isolation voltage
• MTBF >200 years at +75°C case
temperature
• Rugged mechanical design and
efficient thermal management, max
+100 °C case temperature
• EMI measured according to
EN 55 022 and FCC part 15J
The PKG series of DC/DC converters are members
of the EriPower™ range of DC/DC converters for
distributed power architectures in 48/60 VDC power
systems. They provide up to 60W in single and dual
output versions.
The PKG units can be used as on-board distributed
power modules, or serve as building blocks for more
centralized power boards. The high efficiency makes
it possible to operate over a wide temperature range
without any extra heatsinks. At forced convection
cooling >200 lfm (1 m/s), the PKG units can deliver
full power without heatsinks up to +65°C ambient.
With derated output power it can also operate in
temperature controlled environments with non-forced
convection cooling. By adding external heatsinking,
the temperature range can be extended even further.
Thanks to its peak power capability, the PKG series
is ideal for applications where max power is only
required during short durations e.g. in disc drives.
The PKG series uses ceramic substrates with plated
copper in order to achieve good thermal management,
low voltage drops, and a high efficiency.
These products are manufactured using highly
automated manufacturing lines with a world-class
quality commitment and a five year warranty.
Ericsson Power Modules AB is an ISO 9001/14001
certified supplier.
E
Preliminary
Datasheet
General
Absolute Maximum Ratings
Characteristics
T
C
T
S
V
I
V
ISO
V
RC
V
adj
Case temperature @ max output power
Storage temperature
Input voltage
Isolation voltage (input to output test voltage)
Remote control voltage pin 1
Output adjust voltage pin 10
min
–45
–55
– 0.5
1500
–10
– 10
+10
+10
max
+100
+125
+80
Unit
°C
°C
V dc
V dc
Vdc
Vdc
Safety
The PKG 4000 I Series DC/DC converters
are designed in accordance with EN 60 950
Safety of information technology equipment includ-
ing electrical business equipment
and certified
by SEMKO. The isolation is an operational
insulation in accordance with EN 60 950.
The PKG DC/DC converter 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 converter shall be installed in an
end-use equipment and is intended to be sup-
plied by isolated secondary circuitry and shall
be installed in compliance with the require-
ments of the ultimate application. When
the supply to the DC/DC converter 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 test-
ing in the power supply must be performed
in combination with the DC/DC converter
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 con-
nection to mating connectors of internal
wiring inside the end-use equipment.
These DC/DC converters 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 and
between case and output is 1,500 V dc
for 60 s. In production the test duration may
be decreased to 1 s.
The capacitor between input and output has a
value of 4.7 nF (duals = 22 nF) and the leak-
age current is less than 1 A @ 50 Vdc.
Flammability ratings of the terminal sup-
port and internal plastic construction details
meets UL 94V-0.
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 unspeci-
fied manner.
Input
T
C
< T
C max
Characteristics
V
I
V
Ioff
V
Ion
r
I rush
C
I
P
Ii
P
RC
Input voltage range
1)
Turn-off input voltage
Turn-on input voltage
Equivalent inrush
current resistance
Input capacitance
Input idling power
Input stand-by current
I
O
=0,T
C
= –30...+90°C
V
I
= 53 V, T
C
= +25 °C
RC connected to pin 4
Conditions
min
36
32
33
30
1.8
1.5
1.0
2.0
typ
max
72
Unit
V
V
V
mΩ
µF
W
W
Environmental Characteristics
Characteristics
Vibration
(Sinusoidal)
Test procedure & conditions
Frequency
Amplitude
Acceleration
Number of cycles
Frequency
Acceleration density
spectrum
Duration
Reproducability
Peak acceleration
Shock duration
Temperature
Number of cycles
Temperature
Humidity
Duration
Temperature, solder
Duration
Water
Isopropyl alcohol
Terpens
Method
10…500 Hz
0.75 mm
10 g
10 in each axis
10...500 Hz
0.5 g
2
/Hz
10 min in 3 directions
medium (IEC 62-2-36)
200 g
3 ms
–40°C…+125°C
100
85°C
85% RH
1000 hours
260°C
10…13 s
+55 ±5°C
+35 ±5°C
+35 ±5°C
with rubbing
IEC 68-2-6 F
c
Random
vibration
IEC 68-2-34 E
d
Shock
(Half sinus)
Temperature
change
Accelerated
damp heat
Solder
resistability
Resistance to
cleaning solvents
IEC 68-2-27 E
a
IEC 68-2-14 N
a
IEC 68-2-3 C
a
with bias
IEC 68-2-20 T
b
1A
IEC 68-2-45 XA
Method 1
Note:
1)
The input voltage range 36...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 (abnor-
mal voltage) the power loss will be higher than
at normal input voltage and T
C
must be limited
to max +90°C. Absolute max con-tinuous input
voltage is 80 Vdc. Output characteristics will
be marginally affected at input voltages exceed-
ing 72 V.
2
PKG 4000 I Series Datasheet EN/LZT 146 04 R2B © Ericsson Power Modules, October 2004
Mechanical Data
Recommended foot print
Dimensions in mm (in)
Connections
Pin
1
2
3
4
5
6
7
8
9
10
Designation
RC
NC
+In
– In
NC
–Out 2
+Out 2
– Out 1
+Out 1
V
adj
Function
Remote control for turn-on and off.
Not connected.
Positive input. Connected to case.
Negative input.
Not connected.
Negative output 2.
Positive output 2.
Negative output 1.
Positive output 1.
Output voltage adjust.
Weight
Maximum 75 g (2.66 oz).
Case
Blue anodized aluminium casing with em-
bedded tin plated copper pins.
PKG 4000 I Series Datasheet EN/LZT 146 04 R2B © Ericsson Power Modules, October 2004
3
Thermal Data
Two-parameter model
Power dissipation is generated in the components mounted on the
ceramic substrate. The thermal properties of the PKG DC/DC con-
verter is determined by thermal conduction in the connected pins and
thermal convection from the substrate via the case.
The two-parameter model characterizes the thermal properties of the
PKG DC/DC converter and the equation below can be used for ther-
mal design purposes if detailed information is needed. The values are
given for a module mounted on a printed board assembly (PBA).
Note that the thermal resistance between the substrate and the air,
R
th sub-A
is strongly dependent on the air velocity.
T
sub
= P
d
× R
th sub-P
× R
th sub-A
/(R
th sub-P
+ R
th sub-A
) + (T
P
–T
A
)
× R
th sub-A
/(R
th sub-P
+ R
th sub-A
) + T
A
Where:
: dissipated power, calculated as P
O
× (1/ -1)
P
d
T
sub
: max average substrate temperature, T
C max
T
A
: ambient air temperature at the lower side of the power
module
T
P
: average pin temperature at the PB solder joint
R
th sub-P
: thermal resistance from T
sub
to the pins
R
th sub-A
: thermal resistance from T
sub
to T
A
v
: velocity of ambient air.
Air velocity in free convection is 0.2– 0.3 m/s (40-60 lfm).
8
2
Control
Over TemperatureProtection(OTP)
The PKG DC/DC converters have an internal over temperature protec-
tion circuit. If the case temperature exceeds min +115 °C the power
module will go in to OTP-mode. As long as the case temperature
exceeds min +115°C the power module will operate in OTP-mode.
During the OTP-mode the DC/DC converter will shut down com-
pletely and when the case temerature has decreased 25°C the converter
will automatically restart.
Electrical Data
Fundamental circuit diagrams
Single output
Case
3
9
20
1
4
10
Isolated feedback
15
R
th sub-A
(
°
C/W)
R
th sub-P
= 2.5
°
C/W
10
Dual output
5
0
0
2
Air velocity (m/s)
4
6
4
PKG 4000 I Series Datasheet EN/LZT 146 04 R2B © Ericsson Power Modules, October 2004
PKG 4319 PI
T
C
= –30…+90°C, V
I
= 36 ...72V unless otherwise specified.
Output
Output 1
Characteristics
Conditions
min
Output voltage initial
setting and accuracy
Output adjust range
1)
Output voltage
tolerance band
Idling voltage
Long term drift
included
I
O
= 0 A
V
I
= 36…60 V
Line regulation
I
O
=I
Omax
V
I
= 50…72 V
Load regulation
t
tr
Load transient
recovery time
I
O
=0.1 …1.0
×
I
O max
, V
I
= 53 V
5
30
100
I
O
=0.1… 1.0
×
I
O max
, V
I
= 53 V
load step = 0.5× I
Omax
+250
–500
T
coeff
t
r
t
s
I
O
P
O max
I
lim
I
sc
V
O ac
SVR
OVP
1)
2)
3)
Unit
typ
2.51
max
2.53
2.75
V
V
2.49
T
C
= +25°C, I
O
= 15 A, V
I
= 53 V
2.25
I
O
=0.1…1.0
×
I
O max
V
Oi
2.43
2.57
4.0
5
V
V
V
O
mV
mV
µ
s
mV
mV
V
tr
Load transient voltage
Temperature coefficient
2)
Ramp-up time
Start-up time
Output current
Max output power
3)
Current limiting
threshold
Short circuit current
Output ripple
Supply voltage
rejection (ac)
Over voltage protection
I
O
=I
O max
, T
C
<T
C max
I
O
=
0.1…1.0
×
I
O max
V
I
= 53 V
0.1…0.9
×
V
O
From V
I
connection
to V
O
= 0.9
×
V
Oi
see PKG 4319 PI Temperature characteristics
30
60
0
15
38
15.3
22
60
47
4.2
100
ms
ms
A
W
A
A
mV
p-p
dB
V
Calculated value
T
C
< T
C max
V
O
=0.2 … 0.5 V, T
A
=25°C, R
SC
>25 mΩ
I
O
=I
O max
20 Hz …5 MHz
f = 100 Hz sine wave, 1 V
p-p
, V
I
= 53 V
(SVR = 20 log (1 V
p-p
/V
Op-p
))
I
O
> 0.1 × I
O max
See Operating information.
Temperature coefficient is positive at low temperatures and negative at high temperatures.
See also Typical Characteristics, Power derating.
Miscellaneous
Characteristics
η
P
d
Efficiency
Power dissipation
Conditions
I
O
= I
O max
, V
I
= 53 V
I
O
= I
O max
, V
I
= 53 V
min
typ
78
10.7
max
Unit
%
W
PKG 4000 I Series Datasheet EN/LZT 146 04 R2B © Ericsson Power Modules, October 2004
5
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