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
Safety Approvals
Design for Environment
Meets requirements in high-temperature
lead-free soldering processes.
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.
These products are manufactured using highly
automated manufacturing lines with a world-class quality
commitment. 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
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
including 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 supplied by isolated secondary circuitry
and shall be installed in compliance with
the requirements of the ultimate applica-
tion. When the supply to the DC/DC con-
verter 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
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
connection 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 (du-
als = 22 nF) and the leakage current is less
than 1µA @ 50 Vdc.
Flammability ratings of the terminal sup-
port and internal plastic construction details
meets UL 94V-0.
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
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 T
C
< T
C max
Characteristics
V
I
V
Ioff
V
Ion
r
I rush
C
I
Ii
P
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
typ
32
33
30
1.8
1.5
1.0
2.0
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
Shock
(Half sinus)
Temperature
change
Accelerated
damp heat
Solder
resistability
Resistance to
cleaning solvents
IEC 68-2-34 E
d
Note:
1)
The
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
input voltage range 36...72 V meets
the requirements in the European Tel-
ecom 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 re-
spectively. At input voltages exceeding
72 V (abnormal 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
exceeding 72 V.
2
PKG 4000 I Series Datasheet EN/LZT 146 04 R3A © Ericsson Power Modules, April 2007
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 palladium plated copper pins.
PKG 4000 I Series Datasheet EN/LZT 146 04 R3A © Ericsson Power Modules, April 2007
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 converter 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 proper-
ties of the PKG DC/DC converter and the equation below
can be used for thermal design purposes if detailed informa-
tion 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:
P
d
: dissipated power, calculated as P
O
× (1/η-1)
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).
Over TemperatureProtection(OTP)
The PKG DC/DC converters have an internal over tempera-
ture protection 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
completely and when the case temerature has decreased
25°C the converter will automatically restart.
Electrical Data
Fundamental circuit diagrams
Single output
Case
3
9
8
2
1
Control
20
4
Isolated feedback
10
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 R3A © Ericsson Power Modules, April 2007
PKG 4319 PI
T
C
= –30…+90°C, V
I
= 36 ...72V unless otherwise specified.
Output
Characteristics
Output voltage initial
setting and accuracy
Output adjust range
1)
Output voltage
tolerance band
Idling voltage
Line regulation
Long term drift
included
I
O
= 0 A
I
O
=I
Omax
V
I
= 36…60 V
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
I
O
=0.1…1.0 × I
O max
Conditions
min
T
C
= +25°C, I
O
= 15 A, V
I
= 53 V
I
O
=0.1… 1.0 × I
O max
, V
I
= 53 V
load step = 0.5× I
Omax
T
coeff
t
r
t
s
I
O
P
O max
I
lim
I
sc
V
O ac
SVR
OVP
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
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
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
2.25
2.43
5
5
30
100
+250
–500
2.75
2.57
4.0
V
V
V
mV
2.49
Output 1
typ
2.51
max
2.53
V
Unit
V
Oi
V
O
mV
µ
s
V
tr
Load transient voltage
mV
mV
ms
ms
A
W
A
A
mV
p-p
dB
V
s
ee PKG 4319 PI Temperature characteristics
0
15.3
47
30
60
38
22
60
4.2
15
100
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
1)
See Operating information.
2)
Temperature coefficient is positive at low temperatures and negative at high temperatures.
3)
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 R3A © Ericsson Power Modules, April 2007
5
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