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
6
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, May 2000
PKG 2611 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
5.12
5.15
5.18
V
5.80
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)
4.60
5.60
V
5.05
5.25
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.
Characteristics
Conditions
Unit
min
typ
max
Efficiency
h
Power dissipation
P
d
Miscellaneous
84
%
11.5
W
I
O
= I
O max
, V
I
= 26 V
I
O
= I
O max
, V
I
= 26 V
Load regulation
I
O
= 0.1 ...1.0
I
O max
, V
I
= 26 V
t
tr
Load transient recovery time
30
mV
100
150
m
s
0
12
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
))
+350
mV
500
mV
I
O
=I
O max
, T
C
<T
C max
10
15
ms
20
ms
60
W
12.1
A
17
A
50
100
mV
p-p
80
dB
mV
V
O ac
50
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
6
V
I
O
> 0.1 I
O max
see PKG 2611 Temperature characteristics
Calculated value
7
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, April 2000
Characteristics
Conditions
Unit
min
typ
max
Efficiency
h
Power dissipation
P
d
Miscellaneous
88
%
8.2
W
I
O
= I
O max
, V
I
= 26 V
I
O
= I
O max
, V
I
= 26 V
PKG 2623 PI
Characteristics
Conditions
Output 1
min
Unit
Output voltage initial
setting and accuracy
T
C
= +25 C, I
O
= 2.5 A, V
I
= 26 V
V
Oi
Output voltage
tolerance band
V
O
Idling voltage
I
O
= 0 A
Line regulation
I
O
= I
O nom
11.98
12.10
12.22
11.98
12.10
12.22
V
12.95
20
V
mV
T
C
= 30...+90C, V
I
= 19...36 V unless otherwise specified. I
O1 nom
= 2.5 A, I
O2 nom
= 2.5 A.
Long term drift
included
Output
I
O
= 0.1 ...1.0
I
O nom
I
O1
= I
O2
V
I
= 19...36 V
10
Output adjust range
1)
8.50
13.20
8.50
13.20
V
11.70
12.50
11.70
12.60
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.
4)
I
lim
on each output is set by the total load.
Output 2
typ
max
min
typ
max
0
4.0
0
4.0
A
Load regulation
I
O 1
= 0.1 ...1.0
I
O 1nom
, I
O 2
= I
O 2nom
,
V
I
= 26 V
t
tr
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 total 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, R
SC
>0.1
W
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
))
Load transient
recovery time
10
mV
+500
+500
mV
850
850
mV
I
O
=I
O nom
, T
C
<T
C max
15
15
ms
25
25
ms
6
6
A
60
150
60
150
mV
p-p
75
75
dB
mV
V
O ac
43
43
dB
100
100
ms
I
O
= I
O nom
0.60...30 MHz
I
O
=0.1 ...1.0
I
O nom
, V
I
= 26 V
load step = 0.5 I
Onom
, I
O1
= I
O2
I
O
=
0.1...1.0
I
O nom
OVP
Over voltage protection
15
V
60
W
min 1.05 P
O max
4)
I
O
> 0.1 I
O max
see PKG 2623 Temperature characteristics
Calculated value
8
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, May 2000
Characteristics
Conditions
Unit
min
typ
max
Efficiency
h
Power dissipation
P
d
Miscellaneous
88
%
8.2
W
I
O
= I
O max
, V
I
= 26 V
I
O
= I
O max
, V
I
= 26 V
PKG 2625 PI
Characteristics
Conditions
Output 1
min
Unit
Output voltage initial
setting and accuracy
T
C
= +25 C, I
O
= 2.5 A, V
I
= 26 V
V
Oi
Output voltage
tolerance band
V
O
Idling voltage
I
O
= 0 A
Line regulation
I
O
= I
O nom
14.90
15.00
15.10
14.90
15.00
15.10
V
17
26
V
mV
T
C
= 30...+90C, V
I
= 19...36 V unless otherwise specified. I
O1 nom
= 2.0 A, I
O2 nom
= 2.0 A.
Long term drift
included
Output
I
O
= 0.1 ...1.0
I
O nom
I
O1
= I
O2
V
I
= 19...36 V
10
Output adjust range
1)
10.5
16.5
10.5
16.5
V
14.20
15.65
14.20
16.10
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.
4)
I
lim
on each output is set by the total load.
Output 2
typ
max
min
typ
max
0
3.2
0
3.2
A
Load regulation
I
O 1
= 0.1 ...1.0
I
O 1nom
, I
O 2
= I
O 2nom
,
V
I
= 26 V
t
tr
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 total 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, R
SC
> 0.1
W
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
))
Load transient
recovery time
10
mV
+500
+500
mV
1000
1000
mV
I
O
=I
O nom
, T
C
<T
C max
5
5
ms
15
15
ms
5
5
A
60
150
60
150
mV
p-p
75
75
dB
mV
V
O ac
43
43
dB
100
100
ms
I
O
= I
O nom
0.60...30 MHz
I
O
=0.1 ...1.0
I
O nom
, V
I
= 26 V
load step = 0.5 I
Onom
, I
O1
= I
O2
I
O
=
0.1...1.0
I
O nom
OVP
Over voltage protection
18
V
60
W
min 1.05 P
O max
4)
I
O
> 0.1 I
O max
see PKG 2625 Temperature characteristics
Calculated value
9
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, April 2000
PKG 2611 PI
70
80
90
19 V
36 V
100
3
6
9
12
15
Load current (A)
Efficiency
(%)
4.6
5.0
5.4
5.8
0
5
10
15
20
Load current (A)
Output
voltage
(V)
Efficiency (typ)
Output characteristic (typ)
Dynamic load response (typ)
0.2 V/div
0.2 ms/div
6 A/div
Temperature characteristics
Power derating
20
0
40
60
80
-45
-30
+90 +100
+115
Case temperature (C)
Max
output
power
(W
)
s
ss
s
PKG 2410 PI
70
80
90
19 V
36 V
100
3
6
9
12
15
Load current (A)
Efficiency
(%)
Efficiency (typ)
Output characteristic (typ)
Dynamic load response (typ)
0.2 V/div
0.2 ms/div
6 A/div
Temperature characteristics
Power derating
15
0
30
45
60
-45
-30
+85
+100
+115
Case temperature ( C)
Max
output
power
(W)
ss
ss
Typical Characteristics
A. Maximum deviation
DV
O
< 0.1V
Oi
Recover time t
r
<100
ms
The output voltage deviation is determined
by the load transient (dI/dt)
B. Load change:
0.25I
O nom
...0.75I
O
...0.25I
O nom
I
Onom
= I
O1nom
+ I
O2nom
dI/dt
5 A/ms
A. Maximum deviation
DV
O
< 0.1V
Oi
Recover time t
r
<100
ms
The output voltage deviation is determined
by the load transient (dI/dt)
B. Load change:
0.25I
O nom
...0.75I
O
...0.25I
O nom
I
Onom
= I
O1nom
+ I
O2nom
dI/dt
5 A/ms
10
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, May 2000
PKG 2623 PI
60
70
80
19 V
36 V
90
0.5
1.0
1.5
2.0
2.5
Load current (A) I = I
O1
O2
Efficiency
(%)
Efficiency (typ)
Output characteristic (typ)
10
11
12
13
0
0.75
1.5
2.25
3
Load current Output 1 (A)I = I
O2
O2nom
Output 1
Output 2
Output
voltage
(V)
Dynamic load response (typ)
1)
0.5 V/div
0.2 ms/div
3 A/div
Temperature characteristics
Power derating
20
0
40
60
80
-45
-30
+90 +100
+115
Case temperature (C)
Max
output
power
(W
)
s
ss
s
PKG 2625 PI
Efficiency (typ)
Output characteristic (typ)
Dynamic load response (typ)
1)
Temperature characteristics
Power derating
20
0
40
60
80
-45
-30
+90 +100
+115
Case temperature (C)
Max
output
power
(W
)
s
ss
s
A. Maximum deviation
DV
O
< 0.1V
Oi
Recover time t
r
<100
ms
The output voltage deviation is determined
by the load transient (dI/dt)
B. Load change:
0.25I
O nom
...0.75I
O
...0.25I
O nom
I
Onom
= I
O1nom
+ I
O2nom
dI/dt
5 A/ms
1)
Outputs paralleled.
A. Maximum deviation
DV
O
< 0.1V
Oi
Recover time t
r
<100
ms
The output voltage deviation is determined
by the load transient (dI/dt)
B. Load change:
0.25I
O nom
...0.75I
O
...0.25I
O nom
I
Onom
= I
O1nom
+ I
O2nom
dI/dt
5 A/ms
1)
Outputs paralleled.
11
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, April 2000
EMC Specifications
The PKG power module is mounted on a double sided printed circuit board (PB) with ground
plane during EMC measurements.
The fundamental switching frequency is 510 kHz 5% @ V
I
= 26 V, I
O
= (0.1...1.0) I
O
max
.
0
10
20
30
40
50
60
70
80
90
dB V
m
100
0.15
MHz
30
1
10
AV
EFT
Electrical Fast Transients on the input ter-
minals may cause output deviations outside
what is tolerated by the electronic circuits,
i.e. 5%.
The PKG power module can withstand EFT
levels of 0.5 kV keeping V
O
within the toler-
ance band and 2.0 kV without destruction.
Tested according to IEC publ. 801-4.
Conducted EMI Input terminal value (typ)
Output Ripple & Noise (V
O
ac)
Output ripple is measured as the peak to
peak voltage of the fundamental switching
frequency.
Radiated EMS
(Electro-Magnetic Fields)
Radiated EMS is measured according to test
methods in IEC Standard publ. 801-3. No
deviation outside the V
O
tolerance band will
occur under the following conditions:
Frequency range
Voltage level
0.01...200 MHz
3 V
rms
/m
200...1,000 MHz
3 V
rms
/m
1...12 GHz
10 V
rms
/m
Test Set-up according to CISPR publ. 1A.
Supply
mains
PKG
L
o
a
d
1 m
Spectrum
analyzer
5 H/
50
Network
m
W
12
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, May 2000
Operating information
Current Limiting Protection
The output power is limited at loads above the output current limit-
ing threshold (I
lim
), specified as a minimum value.
Turn-on/off Input Voltage (TOA)
The power module monitors the input voltage and will turn on and
turn off at predetermined levels. The levels can be decreased by means
of an external resistor connected between pin 2 and pin 4.
A 0.2 M
W
resistor will decrease the turn-off input voltage approxi-
mately 10%.
Input and Output Impedance
Both the source impedance of the power feeding and the load imped-
ance will interact with the impedance of the DC/DC power module.
It is most important to have the ratio between L and C as low as possi-
ble, i.e. a low characteristic impedance, both at the input and output,
as the power modules have a low energy storage capability.
Use an electrolytic capacitor across the input or output if the source or
load inductance is larger than 10
m
H. Their equivalent series resistance
together with the capacitance acts as a lossless damping filter. Suitable
capacitor values are in the range 10100
m
F.
Parallel Operation
The load regulation characteristic and temperature coefficient of the
PKG DC/DC Power Modules are designed to allow parallel operation.
Paralleling of several modules is easily accomplished by connection of
the output voltage terminal pins. The connections should be symmet-
rical, i.e. the resistance between the output terminal and the common
connection point of each module should be equal. Good paralleling
performance is achieved if you allow the resistance to be 10 m
W
.
10 m
W
equals 50 mm (2 in) of 35
m
m (1 oz/ft
2
) copper with a trace
width of 2.5 mm (0.1 in).
It is recommended not to exceed P
O
=n 0.8 P
O max
, where P
O max
is the maximum power module output power and n the number of
paralleled units, not to overload any of them and thereby decrease the
reliability performance.
Paralleling performance may be further improved by voltage match-
ing. Voltage matching is accomplished by using the Output Adjust
function and trim the outputs to the same voltage.
Output Voltage Adjust (V
adj
)
The utput voltage, V
O
, can be adjusted by using an external resistor. A
0.1 M
W
resistor will change V
O
approximately 5%. To decrease the
output voltage the resistor should be connected between pin 10 and
pin 9 (+ Out 1). To increase the output voltage the resistor should be
connected between pin 10 and pin 8 ( Out 1).
Maximum Capacitive Load
The PKG series has no limitation of maximum connected capacitance
on the output. The power module may operate in current limiting
mode during start-up, affecting the ramp-up and the start-up time.
For optimum performance we recommend maximum 100
m
F/A of I
O
for dual outputs. Connect capacitors at the point of load for best per-
formance.
RC (pin 1)
PKG
TTL
-In (pin 3)
Fig. 1
Remote Control (RC)
Remote turn-on and turn-off can be realized by using the RC-pin.
Normal operation is achieved if pin 1 is open (NC). If pin 1 is con-
nected to pin 3 the PKG power module turns off. To ensure safe turn-
off the voltage difference between pin 1 and 3 shall be less than 1.0 V.
RC is TTL open collector compatible (see fig. 1).
Over Voltage Protection (OVP)
The PKG series has an internal Over Voltage Protection circuitry. The
circuitry will detect over voltage conditions on the output and stop
the power module operation. During OVP conditions there are contin-
uous attempts to start up (non-latching mode). If latching mode is
preferred an external circuit can be used to change the function and
make the output remain in off mode after over voltage detection. (The
OVP level can be found in the output data section.)
RC (pin 1)
-V (pin 3)
I
Reset
+V (pin 4)
I
6.8k
1k
10k
10k
2.7 V
10 F
m
62k
22k
Fig. 2
13
EN/LZT 146 03 R1A (Replaces EN/LZT 137 R5) Ericsson Microelectronics AB, April 2000
Quality Statement
The products are designed and manufactured in an industrial environ-
ment where quality systems and methods like ISO 9000, 6
s and SPC,
are intensively in use to boost the continuous improvements strategy.
Infant mortality or early failures in the products are screened out by a
burn-in procedure and an ATE-based final test.
Conservative design rules, design reviews and product qualifications,
plus the high competence of an engaged work force, contribute to the
high quality of our products.
Reliability
Meantime between failure (MTBF) is calculated to >1.7 million hours
at full output power and a case temperature of +75C (T
A
= +40 C),
using the Ericsson failure rate data system. The Ericsson failure rate
data system is based on field failure rates and is continously updated.
The data correspond to actual failure rates of component used in Infor-
mation Technology and Telecom equipment in temperature controlled
environments (T
A
=5...+65C). The data is considered to have a
confidence level of 90%. For more information see Design Note 002.
Quality
Warranty
Ericsson Microelectronics warrants to the original purchaser or end
user that the products conform to this Data Sheet and are free from
material and workmanship defects for a period of five (5) years from
the date of manufacture, if the product is used within specified condi-
tions and not opened. In case the product is discontinued, claims will
be accepted up to three (3) years from the date of the discontinuation.
For additional details on this limited warranty we refer to Ericsson
Microelectronics AB's "General Terms and Conditions of Sales", or
individual contract documents.
Limitation of Liability
Ericsson Microelectronics does not make any other warranties, ex-
pressed or implied including any warranty of merchantability or fit-
ness for a particular purpose (including, but not limited to, use in life
support applications, where malfunctions of product can cause injury
to a person's health or life).
Information given in this data sheet is believed to be accurate and reliable. No responsibili-
ty 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 Microelectronics.These products
are sold only according to Ericsson Microelectronics' general conditions of sale, unless
otherwise confirmed in writing.
Specifications subject to change without notice.
Product Program
PKG 2410 PI
PKG 2611 PI
PKG 2623 PI
PKG 2625 PI
1)
Adjustable to 2.5V
V
O
/I
O
max
Output 1
V
I
Ordering No.
P
O
max
3.3 V/14 A
1)
5 V/12 A
1)
12 V/4 A
15 V/3.2 A
1)
46 W
60 W
60 W
60 W
12 V/4 A
.
15 V/3.2 A
24 V
Output 2
Ericsson Microelectronics AB
SE-164 81 KISTA, Sweden
Phone: +46 8 757 5000
www.ericsson.com/microelectronics
For local sales contacts, please refer to our website
or call: Int. +46 8 757 4700, Fax: +46 8 757 4776
EN/LZT 146 03 R1A (Replaces EN/LZT 137 23 R5)
Ericsson Microelectronics AB, May 2000
Data Sheet
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