4660 W DC/DC Power Modules
24 V Input Series
Efficiency typ 84% at 5 V and full
load
Low profile 11.0 mm (0.43 in.)
1,500 V dc isolation voltage
(duals = 1,000 V dc )
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 2000 I series of low profile DC/DC Power
Modules are intended as distributed power sources in
decentralized +24 V DC power systems. They can be
used as on-board distributed power modules, or serve
as building blocks for more centralized power boards.
The PKG series of DC/DC power modules provide up
to 60W of output power utilizing the standard
EriPowerTM PKA/PKE pin-out, with an even smaller
footprint, and a power density of 20 W/cu.in.
The high efficiency makes it possible to operate over
a wide temperature range without any extra heat-
sinks. At forced convection cooling >200 lfm (1 m/s),
the PKG units can deliver full power without
heatsinks up to +60C ambient. With derated output
power it can also operate in temperature controlled
environments with free convection cooling. By adding
external heatsinking, the temperature range can be
extended even further. Thanks to their 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 use 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
Microelectronics AB has been an ISO 9001 certified
supplier since 1991. For a complete product program please
reference the back cover.
E
PKG 2000 I
2
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, May 2000
General
Safety
The PKG 2000 I Series DC/DC power mod-
ules are designed in accordance with EN 60
950, Safety of information technology equipment
including electrical business equipment and certi-
fied by SEMKO.
The PKG power modules are recognized by
UL and meet the applicable requirements in
UL 1950 Safety of information technology equip-
ment, the applicable Canadian safety require-
ments and UL 1012 Standard for power sup-
plies.
The DC/DC power module shall be installed
in an end-use equipment and considerations
should be given to measuring the case tem-
perature to comply with T
C max
when in
operation. They are intended to be supplied
by isolated secondary circuitry and shall be
installed in compliance with the require-
ments of the ultimate application. If connect-
ed to a 24 V DC power system reinforced
insulation must be provided in the power
supply that isolates the input from the ac
mains. The isolation in the DC/DC power
module is an operational insulation in accord-
ance with EN 60 950. 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.
The isolation voltage is a galvanic isolation
and is verified in an electric strength test.
Test voltage (V
ISO
) between input and output
and between case and output is
1,500 V dc (duals = 1,000 V dc) for 60 s.
In production the test duration may be de-
creased 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
m
A @ 26 Vdc.
Flammability ratings of the terminal support
and internal plastic construction details
meets UL 94V-0.
Absolute Maximum Ratings
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.
Characteristics
min
max
Unit
T
C
Case temperature @ max output power
45
+ 100
C
T
S
Storage temperature
55
+125
C
V
I
Input voltage
0.5
+ 40
V dc
V dc
V
ISO
V
RC
Remote control voltage pin 1
10
+ 10
V dc
V
adj
Output adjust voltage pin 10
10
+ 10
V dc
Input T
C
< T
C max
Characteristics
Conditions
min
typ
max
Unit
V
I
Input voltage range
1)
18
36
V
V
Ioff
Turn-off input voltage
(See Operating Information)
16
V
V
Ion
Turn-on input voltage
(See Operating Information)
17
V
C
I
Input capacitance
3.6
mF
I
O
=0,T
C
= 30...+90C
1.0
2.0
W
Equivalent inrush
current resistance
m
W
r
Irush
Input idling power
P
Ii
Input stand-by
current
V
I
= 26 V, T
C
= +25 C
RC connected to pin 4
P
RC
1.0
W
10
Characteristics
Frequency
10500 Hz
Amplitude
0.75 mm
Acceleration
10 g
Number of cycles
10 in each axis
Vibration
(Sinusoidal)
IEC 68-2-6 F
c
Test procedure & conditions
Environmental Characteristics
Frequency
10...500 Hz
Acceleration
Spectral density
0.5 g
2
/Hz
Duration
10 min in 3 directions
Reproducibility
medium (IEC 62-2-36)
IEC 68-2-34 E
d
Random
vibration
Peak acceleration
200 g
Shock duration
3 ms
Shock
(Half sinus)
IEC 68-2-27 E
a
Temperature
40 C to +125 C
Number of cycles
100
Temperature
change
IEC 68-2-14 N
a
Temperature, solder
260 C
Duration
10... 13 s
Accelerated
damp heat
Solder
resistability
IEC 68-2-3 C
a
with bias
IEC 68-2-20 T
b
1A
Temperature
85 C
Humidity
85% RH
Duration
1000 hours
Water
+55 5 C
Isopropyl alcohol
+35 5 C
Terpens
+35 5 C
Method
with rubbing
Resistance to
cleaning solvents
IEC 68-2-45 XA
Method 1
Isolation voltage
(input to output test voltage)
1,500
1,000
Singel output
dual output
Note:
1)
The input voltage range 19...36 V meets
the requirements for Normal input voltage
range in 24 V DC power systems, 20...30 V.
At input voltages exceeding 36 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 continuous
input voltage is 40 V dc. Output characteris-
tics will be marginally affected at 18 V (see
also Turn-off Input Voltage).
3
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, April 2000
Mechanical Data
Dimensions in mm (in)
Foot print Component side
Case
Blue anodized aluminium casing with em-
bedded tin plated copper pins.
Weight
Maximum 75 g (2.66 oz).
Pin
Designation
Function
Connections
1
RC
Remote control. To turn-on and turn-off the output.
2
TOA
Turn-on/off input voltage adjust (see Operating information).
3
In
Negative input. Connected to case.
4
+In
Positive input.
5
NC
Not connected.
6
Out 2
Negative output 2.
7
+Out 2
Positive output 2.
8
Out 1
Negative output 1.
9
+Out 1
Positive output 1.
10
V
adj
Output voltage adjust.
4
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, May 2000
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 power
module is determined by thermal conduction in the connected pins
and thermal convection from the substrate via the case.
The two-parameter model characterize the thermal properties of the
PKG power module and the equation below can be used for thermal
design purposes if detailed information is needed. The values are given
for a power 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/
h
-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 Temperature Protection (OTP)
The PKG DC/DC power modules have an internal over temperature
protection circuit. If the case temperature exceeds min +115 C the
power module will go in to OTP-mode. As long as the case tempera-
ture exceeds min +115 C the power module will operate in OTP-
mode.
During OTP-mode the output voltage pulsates between zero and
nominal output voltage, which reduces the power loss inside the
power module. The PKG DC/DC power module will automatically
resume normal operation when the temperature decreases below
min +115 C.
Fundamental circuit diagrams
Electrical Data
Single output
4
2
1
3
Case
Control
Isolated feedback
9
8
10
4
2
1
3
Case
Control
Isolated feedback
10
9
8
7
6
Dual output
T
sub
R
th sub-A
R
th sub-P
T
A
T
P
P
d
R
th sub-P
T
sub
R
th sub-A
v
T
A
T
P
10
15
20
0
5
0
2
6
4
Air velocity (m/s)
R
(
C/W)
th
sub-A
R
= 2.5 C/W
th sub-P
5
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, April 2000
PKG 2410 PI
Characteristics
Conditions
Output 1
min
typ
max
Unit
Output voltage initial
setting and accuracy
T
C
= +25 C, I
O
= I
Omax
, V
I
= 26 V
V
Oi
Output voltage
tolerance band
V
O
Idling voltage
I
O
= 0 A
Line regulation
I
O
= I
O max
3.28
3.30
3.32
V
4.0
V
T
C
= 30 ...+ 90C, V
I
= 19...36 V unless otherwise specified.
Long term drift
included
Output
I
O
= 0.1 ...1.0
I
O max
10
mV
Output adjust range
1)
2.40
3.65
V
3.10
3.40
V
1)
See Operating information.
2)
Temperature coefficient is positive at low temperatures and negative at high temperatures.
3)
See also Typical Characteristics, Power derating.
Load regulation
I
O
= 0.1 ...1.0
I
O max
, V
I
= 26 V
t
tr
Load transient recovery time
35
mV
100
150
m
s
0
14
A
Load transient voltage
V
tr
Temperature coefficient
2)
T
coeff
Ramp-up time
t
r
Start-up time
t
s
0.1 ...0.9
V
O
From V
I
connection
to V
O
= 0.9
V
Oi
Output current
I
O
Max output power
3)
P
O max
Current limiting
threshold
I
lim
T
C
< T
C max
Short circuit current
I
sc
V
O
=0.2 ... 0.5 V, T
A
= 25 C
Output ripple & noise
20 Hz ...5 MHz
Supply voltage
rejection (ac)
SVR
f = 100 Hz sine wave, 1 V
p-p
, V
I
= 26 V
(SVR = 20 log (1 V
p-p
/V
O p-p
))
+200
mV
300
mV
I
O
=I
O max
, T
C
<T
C max
10
15
ms
15
ms
46
W
14.4
A
18
A
60
100
mV
p-p
70
dB
mV
V
O ac
45
dB
I
O
=I
O max
0.60...30 MHz
I
O
=0.1 ... 1.0
I
O max
, V
I
= 26 V
load step = 0.5 I
Omax
I
O
=
0.1...1.0
I
O max
OVP
Over voltage protection
4
V
I
O
> 0.1 I
O max
see PKG 2410 Temperature characteristics
Characteristics
Conditions
Unit
min
typ
max
Efficiency
h
Power dissipation
P
d
Miscellaneous
79.5
%
12
W
I
O
= I
O max
, V
I
= 26 V
I
O
= I
O max
, V
I
= 26 V
Calculated value
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