DC/DC power module
12V/ 0.92A / 11W
SMD with ultra-low component height
8.0 mm (0.315 in.)
81% effi ciency at full load
1,500 Vdc isolation at full load
Switching frequency synchronization
MTBF >10 million hours at +50C
case temperature
Low EMI
PKF 5113 I
E
The MacroDensTM 11W PKF 5113 I, true component
level on-board DC/DC power modules, are intended
as dis trib ut ed power sources in decentralized power
systems with input voltages ranging from 18-75 VDC.
They are optimized for an op er a tion al ambient tem-
per a ture range in compliance with present and future
application needs, in clud ing non temperature controlled
environments.
The mechanical design offers the choice of sur-
face mount or through-hole versions, de liv ered in
ready-to-use tubes, trays or tape & reel package, and
compatibility with semi and fully aqueous cleaning
processes.
For mechanical and other information please refer to the
PKF series General information data sheet.
2
EN/LZT 146 195 R1A Ericsson Power Modules AB, October 2002
Pin
Designation
Function
1
+Out
Positive Output
2
Rtn
Output return
3-6
NC
Not connected. Galvanically isolated from input pins
7
Sync
Synchronization input
8
V
adj
Output voltage agjust
9
NOR
Connection of Nominal Output voltage Resistor
10
TOA
Turn-on/off input voltage adjust
11
RC
Remote control and turn-on/off input voltage adjust
12-16
NC
Not connected. Galvanically isolated from input pins
17
-In
Negative input
18
+In
Positive input
Characteristics
Conditions
min
typ
max
Unit
V
I
Input voltage range
1)
18
75
V
V
off
Turn-off input voltage
(See typical characteristics)
15.0
16.0
V
V
on
Turn-on input voltage
(See typical characteristics)
17.4
17.9
V
C
I
Input capacitance
1.4
F
P
Ii
Input idling power
I
O
= 0, T
C
= -30 ...+90C
(V
I
= 27V)
(V
I
= 53V)
330
220
mW
P
RC
Input stand-by power
T
C
= -30 ...+90C
RC connected to pin 17
(V
I
= 27V)
(V
I
= 53V)
2.4
35
mW
Characteristics
min
max
Unit
T
C
Case temperature at full output power
-45
+100
C
T
S
Storage temperature
-55
+125
C
V
I
Continuous input voltage
1)
-0.5
+80
Vdc
V
ISO
Isolation voltage
(input to output test voltage)
1,500
Vdc
W
tr
Transient input energy
0.01
Ws
V
RC
Remote control voltage pin 10,11 ref. to pin 17.
-5
+16
Vdc
V
adj
Output adjust voltage pin 8,9 ref. to pin 17.
-5
+40
Vdc
1)
The input voltage range 18...75 V dc meets
the Eu ro pe an Telecom Standard prETS
300 132-2 Nom i nal input volt age range
in 48 V and 60 V dc power systems,
40.5...57.0 V and 50.0... 72.0 V respec-
tively. Absolute max con tin u ous input volt age
is 80 Vdc.
2)
The power module will operate down to
35V, when VI decreases, but will turn on to at
VI 36V, when VI increases
(see also Operating information).
Stress in excess of Absolute Maximum
Rat ings may cause permanent damage.
Ab so lute Maximum Ratings, some times
referred to as no destruction limits, are
normally tested with one parameter at a
time ex ceed ing the limits of Output data or
Electrical Char ac ter is tics. If exposed to stress
above these limits, function and performance
may de grade in an un spec i fi ed manner.
Absolute Maximum Ratings
Input T
C
< T
Cmax
unless otherwise specifi ed
Notes:
Connections
18 17 16 15 14 13 12 11 10
1 2 3 4 5 6 7 8 9
Note: Pins 8 & 9 must be jumpered for nominal output voltage.
3
EN/LZT 146 195 R1A Ericsson Power Modules AB, October 2002
The PKF 5113 I DC/DC power module meets the requirements
of
UL/EN 60 950, Safety of information technology equipment
including electrical business equipment. The PKF power modules
are recognized 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 power module shall be installed in an end-use
equipment and considerations should be given to measuring
the case temperature to comply with T
Cmax
when in operation.
Abnormal component tests are conducted with the input
protected by an external 15 A fuse. The need for repeating these
tests in the end-use appliance shall be con sidered if installed in
a circuit having higher rated devices.
When the supply to the DC/DC power module meets all the
requirements for SELV (<60Vdc), the output is considered
to remain within SELV limits (level 3). The isolation is an
operational insulation in accordance with EN 60 950.
The DC/DC power module is intended to be supplied by
isolated secondary circuitry and shall be installed in compliance
with the requirements of the ultimate application. If they are
connected to
a 60 V DC system reinforced insulation must be pro vided
in the power supply that isolates the input from the mains.
Single fault testing in the power supply must be performed in
combination with the DC/DC power module 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 fl oating. The terminal pins are only intended for
connection to mating connectors of internal wiring inside the
end-use equipment.
These DC/DC power modules may be used in telephone
equipment in accordance with paragraph 34 A.1 of UL 1459
(Standard for Telephone Equipment, second edition).
The galvanic isolation is verifi ed in an electric strength test.
Test voltage (V
ISO
) between input and out put is 1,500 Vdc for
60 s. In production the test duration may be decreased to 1 s.
The capacitor between input and output has a value of 1nF and
the leakage current is less than 1A @ 53 Vdc.
The case is designed in non-conductive epoxy. Its fl ammability
rating meets UL 94V-0. The oxygen index is 34%.
Single voltage pulse at +25C ambient temperature.
Electrical Data
Fundamental circuit diagram, Single output
Transient input voltage
Safety
4
EN/LZT 146 195 R1A Ericsson Power Modules AB, October 2002
Characteristics
Conditions
min
typ
max
Unit
Effi ciency
I
O
= 0.92 A
VI = 27V
78
81
%
VI = 53V
77
80
P
d
Power dissipation
VI = 27V
2.2
W
VI = 53V
2.5
T
C
= 30...+95 C, V
I
= 18...75 V and pin 8 connected to pin 9, unless otherwise specifi ed.
Output
Miscellaneous
1)
See also Operating Information.
2)
See Typical Characteristics.
Characteristics
Conditions
Output 1
Unit
min
typ
max
V
Oi
Output voltage initial
setting and accuracy
T
C
= +25C, I
O
= 0.45A, V
I
= 53V
11.94
12.00
12.06
V
Output adjust range
1)
6.7
15
V
O
Output voltage
tolerance band
Long term drift
included
I
O
= 0.092 ... 0.92A
11.60
12.60
V
Idling voltage
I
O
= 0A
13
Line regulation
I
O
= 0.92A
V
I
= 18 ... 75V
30
mV
Load regulation
I
O
= 0.092 ... 0.92A, V
I
= 53V
300
mV
t
tr
Load transient recovery time
I
O
=0.1 ... 1.0
I
O max
, V
I
= 53V
load step = 0.45A
150
s
V
tr
Load transient voltage
300
mV
T
coeff
Temperature coeffi cient
I
O
=0.92 A, T
C
= +40 ... +90C
-3.5
mV/C
t
r
Ramp-up time
I
O
= 0.092 ... 0.92A
V
I
=53V
0.1 ...0.9
V
O
2
ms
t
s
Start-up time
From V
I
connection
to V
O
= 0.9
V
Oi
4.5
I
O
Output current
0
0.92
A
P
O max
Max output power
2)
Calculated value
11
W
I
lim
Current limiting threshold
T
C
< T
C max,
V
O
= 10V
1.2
1.5
A
I
sc
Short circuit current
V
O
= 0.2 ... 0.5V, T
C
= + 25C
2
A
V
O ac
Output ripple & noise
I
O
=I
O max
20Hz ... 5MHz
20
50
mV
p-p
0.6 ... 50MHz
80
dBV
SVR
Supply Voltage Rejection (ac)
f = 100 Hz sine wave, 1 V
p-p
, V
I
= 53 V
(SVR = 20 log (1 V
p-p
/V
Op-p
))
60
dB
5
EN/LZT 146 195 R1A Ericsson Power Modules AB, October 2002
Output characteristic (typ)
Power derating
Temperature coeffi cient
Turn-on/turn-off input voltage
Effi ciency (typ)
@ T
A
= +25C
Dynamic load response (typ) @ +25C
EMC Specifi cations
During EMC measurements the PKF power module is
measured directly.
The fundamental switching frequency is 510 kHz 5%
at I
O
= 0.092-0.92A
Test Conditions: V
I
= 53 V, I
O
= 0.92A at room temperature
Conducted EMI (input teminals)
External Filter (class B)
Required external input fi lter in order to meet class B in EN 55022,
CISPR 22 and FCC part 15J.
PKF 5113 without fi lter.
L1 = 51H ( Recommended part: Siemens B82790-S0513 )
L2 = 10H
C1, C2, C3 = 0.68 F
C4 = 22F
C5, C6 = 10nF
+
-
Supply
voltage
L1
C2
C3
C6
C5
C4
C1
L2
pin 18
pin 17
I
O
step=
0.46-0.92-0.46A
The output
voltage deviation
is determined
by the load
transient (dI/dt)
Load change:
dI/dt 4A/s
38
Typical Characteristics
-40
-20
0
20
40
60
80
100
120
15,0
15,5
16,0
16,5
17,0
17,5
18,0
Turn-on
Turn-off
Turn-on/Tur-off voltage
Case temperature (C)
0.2 V/div
PKF 5113 with fi lter.
V
I
= 53V
0.5 A/div
0.2 ms/div
0,0
0,2
0,4
0,6
0,8
1,0
1,2
70
72
74
76
78
80
82
84
86
Load current (A)
E
f
f
i
c
i
e
n
c
y
(
%
)
18 V
38 V
53 V
75 V
0
3
6
9
12
-40
-30
+80
+90
+100
+110
+120
Case temperature (C)
Max output power (W)
-50
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
6
7
8
9
10
11
12
13
14
Load current (A)
Output Voltage (V)
18V
All other
voltages
-40
-20
0
20
40
60
80
100
11.6
11.7
11.8
11.9
12.0
12.1
12.2
Case temperature C
Output voltage (V)
PDF 
ZIP