Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
SEC/S Marshall Wang 1/1301-BMR 667 Uen
Approved Checked Date Rev Reference
2013-04-27 C
Key Features
Industry standard Sixteenth-brick
33.0 x 22.9 x 8.5 mm (1.3 x 0.9 x 0.334 in.)
High efficiency, typ. 92.7% at 12 Vout 50 % load
1500 Vdc input to output isolation
Meets safety requirements according to IEC/EN/UL
60950
MTBF 4.27 Mh
General Characteristics
Fully regulated
Input under voltage protection
Pre-bias start up
Over temperature protection
Output over voltage protection
Output short circuit protection
Remote control
Highly automated manufacturing ensures quality
ISO 9001/14001 certified supplier
Safety Approvals Design for Environment
Meets requirements in high-
temperature lead-free soldering
processes.
Ericsson Internal
TABLE OF CONTENTS 1 (1)
Prepared (also subject responsible if other) No.
SEC/S Marshall Wang 001 52-EN/LZT 146 Uen
Approved Checked Date Rev Reference
2012-01-12 PA3
Contents
Ordering Information .............................................................2
General Information .............................................................2
Safety Specification .............................................................3
Absolute Maximum Ratings .............................................................4
Electrical Specification
5 V, 20 A / 100 W PKU 4105C PI......................................5
12 V, 8.3 A / 100 W PKU 4104C PI ...................................... 8
EMC Specification ........................................................... 11
Operating Information ...........................................................12
Thermal Consideration ........................................................... 13
Connections ...........................................................13
Mechanical Information ...........................................................14
Soldering Information ...........................................................16
Delivery Information ...........................................................17
Product Qualification Specification ........................................................... 18
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
SEC/S Marshall Wang 1/1301-BMR 667 Uen
Approved Checked Date Rev Reference
2013-04-27 C
Ordering Information
Product program Output
PKU 4104C PI 12 V, 8.3 A / 100 W
PKU 4105C PI 5 V, 20 A / 100 W
Product number and Packagin g
PKU 4104C n1 n2 n3 n4
Options n1 n2 n3 n4
Mounting x
Remote Control logic x
Lead length x
Delivery package information x
Options Description
n1
n2
n3
n4
PI
SI
P
LA
LB
LC
/B
/C
Through hole
Surface mount
Negative *
Positive
5.30 mm *
3.69 mm (pin-cut)
4.57 mm (pin-cut)
2.79 mm (pin-cut)
Tray
Tape and Reel
Example a through-hole mounted, positive logic, short pin
product with tray packaging would be PKU 4104C PIPLA/B.
* Standard variant (i.e. no option selected).
General Information
Reliability
The failure rate () and mean time between failures
(MTBF= 1/) is calculated at max output power and an
operating ambient temperature (TA) of +40°C. Ericsson
Power Modules uses Telcordia SR-332 Issue 2 Method 1 to
calculate the mean steady-state failure rate and standard
deviation ().
Telcordia SR-332 Issue 2 also provides techniques to
estimate the upper confidence leve ls of failure rates based
on the mean and standard deviation.
Mean steady-state failure rate, Std. deviation,
234 nFailures/h 22 nFailures/h
MTBF (mean value) for the PKU 4000 serie s = 4.27 Mh.
MTBF at 90% confidenc e level = 3.8 Mh
Compatibility with RoHS requirements
The products are compatible wit h the rel evant clauses and
requirements of the RoHS directive 2002/95/EC and have a
maximum concentration value of 0.1% b y weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmi um.
Exemptions in the RoHS directive utilized in Ericsson
Power Modules products are found in the Statement of
Compliance document.
Ericsson Power Modules fulfills and will continuously fulfill
all its obligations under regulation (EC) No 1907/2006
concerning the registration, evaluation, authorization and
restriction of chemicals (REACH) as they enter into force
and is through product materials dec larations preparing for
the obligations to communicate information on substances
in the products.
Quality Statement
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, Six Sigma, and SPC are inten sively in use to
boost the continuous improvements strateg y. Infant
mortality or early failures in the prod ucts are screened out
and they are subjected to 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 the products.
Warranty
Warranty period and conditions are defined in Ericsson
Power Modules General Terms and Conditi ons of Sale.
Limitation of Liability
Ericsson Power Modules does not make any other
warranties, expressed or impli ed including any warranty of
merchantability or fitness for a particular purp ose (including,
but not limited to, use in life support applications, where
malfunctions of product can cause i njury to a person’s
health or life).
©
Ericsson AB 2011
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liabil ity is accepted for
inaccuracies, printing errors or for any consequences
thereof. Ericsson AB reserves the right to change the
contents of this technical specification at any time without
prior notice.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
2
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
SEC/S Marshall Wang 1/1301-BMR 667 Uen
Approved Checked Date Rev Reference
2013-04-27 C
Safety Specification
General information
Ericsson Power Modules DC/DC converters and DC/DC
regulators are designed in accordance with safety
standards IEC/EN/UL60950, Safety of Information
Technology Equip m ent.
IEC/EN/UL60950 contains requirements to prevent injury
or damage due to the following hazar ds:
Electrical shock
Energy hazards
Fire
Mechanical and heat hazards
Radiation hazards
Chemical hazards
On-board DC-DC converters and DC/DC regulators are
defined as component power supplies. As components
they cannot fully comply with the provisions of any Safety
requirements without “Conditions of Acceptability”.
Clearance between conductors and between conductive
parts of the component power supply and conductors on
the board in the final product must meet the applicable
Safety requirements. Certain conditions of acceptabilit y
apply for component po wer supplies with limited stand-off
(see Mechanical Information for further information). It is
the responsibility of the installer to ensure that the final
product housing these compo nents complies with the
requirements of all applicable Safety standards and
Directives for the final product.
Component power supplies for general use should comply
with the requirements in IEC60950, EN609 50 and
UL60950 “Safety of information technology equipment”.
There are other more product related standards, e.g.
IEEE802.3af “Ethernet LAN/MAN Data terminal equipment
power”, and ETS300132-2 “Power supply interface at the
input to telecommunications equipment; part 2: DC”, but all
of these standards are based on IEC/EN/UL60950 with
regards to safety.
Ericsson Power Modules DC/DC converters and DC/DC
regulators are UL60950 recognized and certified in
accordance with EN60950.
The flammability rating for all construction parts of the
products meets requirements for V-0 class material
according to IEC 60695-11-10.
The products should be installed in the end-use equipme nt,
in accordance with the requirements of the ultimate
application. Normally the output of the DC/DC converter is
considered as SELV (Safety Extra Low Voltage) and the
input source must be isolated by minimum Doub le or
Reinforced Insulation from the primar y circuit (AC mains) in
accordance with IEC/EN/UL60950.
Isolated DC/DC converters
It is recommended that a slow blow fuse with a rating twice
the maximum input current per selected pr oduct be used at
the input of each DC/DC converter. If an input filter is used
in the circuit the fuse should be placed in front of the input
filter.
In the rare event of a component problem in the input filter
or in the DC/DC converter that imposes a short circuit on
the input source, this fuse will provide the foll owing
functions:
Isolate the faulty DC/DC converter from the input
power source so as not to affect the operation of
other parts of the system.
Protect the distribution wiring from excessive
current and power loss thus preventing hazardous
overheating.
The galvanic isolation is verifi ed in an electric strength test.
The test voltage (Viso) between input and output is
1500 Vdc or 2250 Vdc for 60 seconds (refer to product
specification).
Leakage current is less than 1 µA at nominal input voltage.
24 V DC systems
The input voltage to the DC/DC converter is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
48 and 60 V DC systems
If the input voltage to the DC/DC converter i s 75 Vdc or
less, then the output remains SELV (Safety Extra Low
Voltage) under normal and a bnormal operating conditions.
Single fault testing in the input power supply circuit should
be performed with the DC/DC converter connecte d to
demonstrate that the input voltage does not exceed
75 Vdc.
If the input power source circuit is a DC power system, the
source may be treated as a TNV2 circuit and testing has
demonstrated compliance with SELV limits and isolation
requirements equivalent to Basic Insulation i n accord ance
with IEC/EN/UL60950.
Non-isolated DC/DC regulators
The input voltage to the DC/DC regulator is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
3
Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
EPONMEL 2/1301-BMR 667 02 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF(Ksenia Harrisen) (ezhewng) 2011-11-18 A
Absolute Maximum Ratings
Characteristics min typ max Unit
Tref Operating Temperature (see Thermal Consideration section) -40 +125 °C
TS Storage temperature -55 +125 °C
VI Input voltage -0.5 +80 V
Viso Isolation voltage (input to output test voltage) 1500 Vdc
Vtr Input voltage tran sie nt (tp 100 ms) 100 V
VRC Remote Control pin voltage (see Operating Information section) -0.5 10 V
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.
Fundamental Circuit Diagram
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
4
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
EPONMEL 2/1301-BMR 667 02 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF(Ksenia Harrisen) (ezhewng) 2011-11-18 A
5 V, 20 A / 100 W Electrical Specification PKU 4105C PI
Tref = -40 to +90ºC, VI = 36 to 75 V, un less otherwis e specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
Cout = 2000 µF, for details see note 1.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage 29 30 32 V
VIon Turn-on input voltage 30 32 35 V
CI Internal input capacitance 3.3 µF
PO Output power 0 100 W
50 % of max IO 93.3
max IO 93.0
50 % of max IO , VI = 48 V 93.6
η Efficiency
max IO, VI = 48 V 93.0
%
Pd Power Dissipation max IO 7.5 10 W
Pli Input idling power IO = 0 A, VI = 53 V 2 W
PRC Input standby power VI = 53 V (turned off with RC) 0.1 W
fs Switching freq uency 0-100 % of max IO 250 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V,
50 % of max IO 4.9 5.0 5.1 V
Output voltage tolerance band 0-100 % of max IO 4.8 5.2 V
Idling voltage IO = 0 A 5.0 V
Line regulation max IO , see note 2 6 30 mV
Load regulati on VI = 53 V, 0-100 % of max IO 12 30 mV
Vtr Load transient
voltage deviatio n 40 mV
ttr Load transient recovery time
VI = 53 V, IO = 0.5…1.0 x IO max
Load step 0.1 x IO max
of max IO, di/dt = 1 A/μs.
0 µs
tr Ramp-up time
(from 10−90 % of VOi) 6 9 10 ms
ts Start-up time
(from VI connection to 90 % of VOi)
13 19 22 ms
max IO 1.2 ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 0 % of max IO 14 s
RC start-up time max IO
18.5 ms
max IO
1.2 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 0 % of max IO
14 s
IO Output current 0 20 A
Ilim Current limit threshold Tref < max Tref 25 A
Isc Short circuit current Tref = 25ºC, VO = 0.5V 32 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 5 20 40 mVp-p
OVP Over voltage protection Tref = +25°C, VI = 53 V, 0-100 % of
max IO 5.7 V
Note 1: Low ESR type (ESR approx 11 mΩ). Minimum required capacitance for monotonic start up at 0 % load is 1000 µF / 20 mΩ.
Recommended capacitance is 2000 µF. Maximum recommended capacitance is 4000 µF.
Note 2: Valid for max value: VI = 38 to 75 V.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
5
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
EPONMEL 2/1301-BMR 667 02 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF(Ksenia Harrisen) (ezhewng) 2011-11-18 A
5 V, 20 A / 100 W Typical Characteristics PKU 4105C PI
Efficiency Power Dissipation
70
75
80
85
90
95
048121620[A]
[%]
36 V
48 V
53 V
75 V
0
3
6
9
12
0 4 8 12 16 20 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at Tref = +25°C
Output Current Derating
4
8
12
16
20
24
0 20 40 60 80 100 [癈]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Output Characteristics Current Limit Characteristics
4,8
4,9
5,0
5,1
5,2
048121620[A]
[V]
36 V
48 V
53 V
75 V
0
1
2
3
4
5
6
12 16 20 24 28 32 36 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C Output voltage vs. load current at IO > max IO , Tref = +25°C
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
6
Ericsson Internal
PRODUCT SPECIFICATION 4 (4)
Prepared (also subject responsible if other) No.
EPONMEL 2/1301-BMR 667 02 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF(Ksenia Harrisen) (ezhewng) 2011-11-18 A
5 V, 20 A / 100 W Typical Characteristics PKU 4105C PI
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 20 A.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (10 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 20 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (1 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 20 A.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.). Output voltage response to load current
step-change Tref =+25°C, VI = 53 V. Top trace: output voltage (100 mV/div.).
Bottom trace: load current (5 A/div.).
Time scale: (0.1 ms/div.).
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
7
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
ESONHUI 2/1301-BMR 667 04 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF(Ksenia Harrisen) EILKLIN 2011-12-28 A
12V, 8.3A / 100W Typical Characteristics PKU 4104C
Tref = -40 to +90ºC, VI = 36 to 75 V, un less otherwis e specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
Cout = 1000 µF, for details see note 1.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage 29 30 32 V
VIon Turn-on input voltage 30 32 35 V
CI Internal input capacitance 3.3 µF
PO Output power 0 100 W
50 % of max IO 92.0
max IO 93.1
50 % of max IO , VI = 48 V 92.5
η Efficiency
max IO, VI = 48 V 93.4
%
Pd Power Dissipation max IO 7.4 11.5 W
Pli Input idling power IO = 0 A, VI = 53 V 3 W
PRC Input standby power VI = 53 V (turned off with RC) 0.1 W
fs Switching freq uency 0-100 % of max IO 250 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V,
50 % of max IO 11.64 12.0 12.36 V
Output voltage tolerance band 0-100 % of max IO 11.5 12.5 V
Idling voltage IO = 0 A 12.0 V
Line regulation max IO 35 160 mV
Load regulati on VI = 53 V, 0-100 % of max IO 65 180 mV
Vtr Load transient
voltage deviatio n 60 mV
ttr Load transient recovery time
VI = 53 V, IO = 0.5…1.0 x IO max
Load step 0.1 x IO max
of max IO, di/dt = 1 A/μs.
See note 1 0 µs
tr Ramp-up time
(from 10−90 % of VOi) 5 9 12 ms
ts Start-up time
(from VI connection to 90 % of VOi)
13 19 24 ms
max IO 3.5 ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 0 % of max IO 8 s
RC start-up time max IO
19 ms
max IO
3.5 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 0 % of max IO
8 s
IO Output current 0 8.3 A
Ilim Current limit threshold Tref < max Tref 12 A
Isc Short circuit current Tref = 25ºC, VO = 0.5V 15 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 20 90 mVp-p
OVP Over voltage protection Tref = +25°C, VI = 53 V, 0-100 % of
max IO 13.7 V
Note 1: Low ESR type (ESR approx 20 mΩ). Minimum required capacitance for monotonic start up at 0 % load is 1000 µF / 20 mΩ.
Recommended capacitance is 1000 µF. Maximum recommended capacitance is 2000 µF.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
8
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
ESONHUI 2/1301-BMR 667 04 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF(Ksenia Harrisen) EILKLIN 2011-12-28 A
12V, 8.3A / 100W Typical Characteristics PKU 4104C
Efficiency Power Dissipation
70
75
80
85
90
95
0246810[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0246810[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at Tref = +25°C
Output Current Derating
0
2
4
6
8
10
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/ s
1.0 m/ s
Nat. Con v .
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Output Characteristics Current Limit Characteristics
11.6
11.8
12 .0
12 .2
12 .4
0246810
[A]
[V]
36 V
48 V
53 V
75 V
0
3
6
9
12
15
6 8 10 12 14 16 18 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C Output voltage vs. load current at IO > max IO , Tref = +25°C
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
9
Ericsson Internal
PRODUCT SPECIFICATION 4 (4)
Prepared (also subject responsible if other) No.
ESONHUI 2/1301-BMR 667 04 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF(Ksenia Harrisen) EILKLIN 2011-12-28 A
12V, 8.3A / 100W Typical Characteristics PKU 4104C
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 8.3 A resistive load.
Top trace: output voltage (5 V/div).
Bottom trace: input voltage (50 V/div).
Time scale: (10 ms/div).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 8.3 A resistive load.
Top trace: output voltage (5 V/div).
Bottom trace: input voltage (50 V/div).
Time scale: (2 ms/div).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 8,3 A.
Trace: output voltage (20 mV/div).
Time scale: (2 µs/div). Output voltage response to load current step-
change Tref =+25°C, VI = 53 V. Top trace: output voltage (200 mV/div).
Bottom trace: load current (2 A/div).
Time scale: (0.1 ms/div).
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
10
Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
ESONHUI 3/1301-BMR 667 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) EPONMEL 2011-12-12 B
EMC Specification
Conducted EMI measured according to EN5 5022, CISPR 22
and FCC part 15J (see test set-up). See Design Note 009 for
further information. The fundamental switching frequency is
250 kHz for PKU 4105C PI.
Conducted EMI Input terminal value (typ)
EMI without filter @ Vi = 48 V, max Io.
External filter (class B)
Required external input filter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15J.
L1 L2
C1
C3
C4
C2 C5 Load
DC/DC
C6
Filter components:
C1, 2, 6 = 1 μF/100 V
Ceramic
C3, 4 = 2.2 nF/1500 V
Ceramic
C5 = 100 μF/100 V
Electrolytic
L1,L2 = 1.47 mH
2.8 A, Common Mode
EMI with filter @ Vi = 48 V, max Io.
Test set-up
Layout recommendation
The radiated EMI performanc e of the DC/DC converter will
depend on the PCB layout and ground layer design.
It is also important to consider the stand-off of the DC/DC
converter. With regards to the isolation requirements avoid
placing a conductor which is connected to the primary side
below the DC/DC converter.
If a ground layer is used, it should be connected to the output
of the DC/DC converter and the equipment ground or chassis.
A ground layer will increase the stray capacitance in the PCB
and improve the high frequency EMC performance.
Output ripple and noise
Output ripple and noise meas ured according to figure belo w.
See Design Note 022 for detai led information.
Output ripple and noise test setup
LOAD
Conductor from OUT to capacitors = 50 mm (1.97 in)
10 µF 100 nF
50 mm
BNC Connector
to Scope
+
+OUT
-OUT
Tantalum CapacitorCeramic Capacitor
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
11
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
ESONHUI 3/1301-BMR 667 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) EPONMEL 2011-12-12 B
Operating information
Input Voltage
The input voltage range 36 to 75 Vdc meets the requirements
of the European Telecom Standard ETS 300 132-2 for normal
input voltage range in –48 an d –60 Vdc systems, -40.5 to -
57.0 V and –50.0 to -72 V respectivel y.
The input voltage range is 45 to 75Vdc for PKUC 41 06C.
The absolute maximum conti nuous input voltage is 80 Vdc.
Turn-off Input Voltage
The DC/DC converters monitor the input voltage and will turn
on and turn off at predetermined levels.
The minimum hysteresis between turn on and turn off input
voltage is 1 V.
Remote Control (RC)
The products are fitted with a
remote control function referenced
to the primary negative i nput
connection (- In), with negative and
positive logic options avail ab le.
The RC function allo ws the
converter to be turned on/off by an
external device like a
semiconductor or mechanical
switch. The RC pin has an internal
pull up resistor to + In.
The maximum required si nk current is 0.4 mA. When the RC
pin is left open, the voltage generated on the RC pin is max
5 V. The maximum allowable leakage current of the switch is
50 μA. With “negative logic” the converter will turn on when
the input voltage is applied with the RC connected to the - In.
Turn off is achieved by leavin g the RC pin open, or connected
to a voltage higher than 5 V referenced to –In.
The second option is “positive logic” remote control, which can
be ordered by adding the suffix “P” to the end of the part
number. The converter will turn on when the input voltage is
applied with the RC pin open. Turn off is achieved by
connecting the RC pin to the - In. To ensure safe turn off the
voltage difference between R C pin a nd the - In pin shall be
less than 1 V. The converter will restart automatically when
this connection is opened.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the DC/DC converter. It is
important that the input source has low characteristic
impedance. The converters are designed for stable operation
without external capacitors connected to the output. The
performance in some applications can be enhanced by
addition of external capacitance as described under External
Decoupling Capacitors. If the input voltage source contains
significant inductance, the additio n of a 100 µF capacitor
across the input of the converter will ensure stable oper ation.
The capacitor is not required when powering the DC/DC
converter from an input source with an inductance below
10 µH.
External Decoupling Capacitors
When powering loads with significant d ynamic current
requirements, the voltage regulation at the point of load can
be improved by addition of decoup ling capacitors at the load.
The most effective technique i s to locate low ESR ceramic
and electrolytic capacitors as close to the l oa d as possible,
using several parallel capacitors to lower the effective ESR.
The ceramic capacitors will handle high-frequency d ynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce an y high frequency noise at the
load. It is equally important to use low resistance and low
inductance PCB layouts an d cabling.
For further information please contact your local Ericsson
Power Modules representative.
Parallel Operation
Two converters may be paralleled for redund ancy (1+1) if the
total power is equal or less than POmax for one unit. To
secure the function oring diod es may be used.
Pre-bias Start-up
These products has pre-bias start up functionality and will not
sink current during start up if a pre-bias source is present at
the output terminal up to the min-value of output volta ge
tolerance band, i.e. 4.5 V for a 5 V version and 10.8 V for a 12
V version. Nor will there be any under or over shoot.
See Design Note 026 for detai led information.
Over Temperature Protection (OTP)
The converters are protected from thermal overlo ad by an
internal over temperature shut down circuit.
When Tref as defined in thermal consideration section
exceeds 135°C the converter will shut down. The DC/DC
converter will resume normal oper ation automatically when the
temperature has dropped approx 22°C below the temperature
threshold.
Over Voltage Protection (OVP)
The converters have output over voltage protection that will
clamp the output voltage to a continous fixed level. After
removal of the over voltage condition the co nverter will
resume to normal operation automatically.
Over Current Protection (OCP)
The converters include current limiting circuitry for protection
at continuous overload.
The output voltage will decrease towards zero for output
currents in excess of max output current (max IO). The
DC/DC converter will resume normal operation after removal
of the overload. The load distributi on should be designed for
the maximum output short circuit current specified.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
12
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
ESONHUI 3/1301-BMR 667 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) EPONMEL 2011-12-12 B
Thermal Consideration
General
The converters are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
Cooling is achieved mainl y by conduction, from the pins to the
host board, and convection, which is dependent on the airflow
across the converter. Increased airflow enhances the cooling
of the converter.
The Output Current Derating graph found in the Output
section for each model provides the available output curren t
vs. ambient air temperature and air velocity at
Vin = 53 V.
The DC/DC converter is tested on a 254 x 254 mm,
35 µm (1 oz), 16-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 30 5 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at reference point. The
temperature at this position should not exceed the max values
provided in the table below.
See Design Note 019 for further information.
Position Device Designation Max value
Reference 4104C Tref 105ºC
Reference 4105C Tref 105ºC
Reference 4106C Tref 105ºC
Definition of reference temperature (Tref)
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum Tref are
not allowed and may cause degradation or permanent
damage to the product. Tref is also used to define the
temperature range for normal operating conditions.
Tref is defined by the design and used to guarantee safety
margins, proper operation and high reliability of the module.
Connections
Top View
Pin Designation Function
1 +In Positive Input
2 RC Remote Control
3 -In Negative Input
4 -Out Negative Output
5 +Out Positive Output
Reference
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
13
Ericsson Internal
PRODUCT SPEC. MECHANICAL 1 (4)
Prepared (also subject responsible if other) No.
MICUPEZ/EPEIHLI 4/1301-BMR 667 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) See §1 2013-04-27 C Template ref F
Mechanical Information - Surface Mou nt Version
A
ll component placements – whether shown as physical components or symbolical outline – are for reference only and are subject to change throughout the product’s life cycle,
unless explicitly described and dimensioned in this drawing.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
14
Ericsson Internal
PRODUCT SPEC. MECHANICAL 2 (4)
Prepared (also subject responsible if other) No.
MICUPEZ/EPEIHLI/EPEIHLI 4/1301-BMR 667 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) See §1 2013-04-27 C Template ref F
Mechanical Information - Hole Mount, Open Frame Version
A
ll component placements – whether shown as physical components or symbolical outline – are for reference only and are subject to change throughout the product’s life cycle,
unless explicitly described and dimensioned in this drawing.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
15
Ericsson Internal
PRODUCT SPEC. 1 (4)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 667 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF [Ksenia Harrisen] See §1 2011-12-05 A Template rev. J
Soldering Information - Surface Mounting
The surface mount product is intend ed for forced convection or
vapor phase reflow soldering in SnPb or Pb-free processes.
The reflow profile should be optimised to avoid excessive
heating of the product. It is recommended to have a sufficiently
extended preh eat time to ensure an even temperature acro ss
the host PWB and it is also recommended to minimize the time
in reflow.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities insid e the prod uct or between the
product and the host board, since cleaning residues may affect
long time reliability and isolation voltage.
General reflow process specifications SnPb eutectic Pb-free
Average ramp-up (TPRODUCT) 3°C/s max 3°C/s max
Typical solder melting (liquidus)
temperature TL 183°C 221°C
Minimum reflow time above TL 60 s 60 s
Minimum pin temperature TPIN 210°C 235°C
Peak product temperature TPRODUCT 225°C 260°C
Average ramp-down (TPRODUCT) 6°C/s max 6°C/s max
Maximum time 25°C to peak 6 minutes 8 minutes
TPRODUCT maximum
TPIN minimum
Time
Pin
profile
Product
profile
TL
Time in
reflow
Time in preheat
/ soak zone
Ti me 25 °C to pea k
Temperature
Minimum Pin Temperature Recommendations
Pin number 5 is chosen as reference location for the minimum
pin temperature recommendation since this will likely be the
coolest solder joint during the reflow process.
SnPb solder processes
For SnPb solder processes, a pin temperat ure (TPIN) in excess
of the solder melting temperature, (TL, 183°C for Sn63Pb37) for
more than 60 seconds and a peak temperature of 220°C is
recommended to ensure a reliabl e solder joint.
For dry packed products only: dependin g on the type of solder
paste and flux system used on the host board, up to a
recommended maximum temperature of 245°C could be used,
if the products are kept in a controlled environment (dry pack
handling and storage) prior to assembly.
Lead-free (Pb-free) solder processes
For Pb-free solder processes, a pin temperature (TPIN) in
excess of the solder melting temperature (TL, 217 to 221°C for
SnAgCu solder alloys) for more than 60 seconds and a peak
temperature of 245°C on all solder joints is recommended to
ensure a reliable solder joint.
Maximum Product Temperature Requirements
Top of the product PWB near pin 2 is chosen as reference
location for the maximum (peak) allowed product temperature
(TPRODUCT) since this will likely be the warmest part of the
product during the reflow process.
SnPb solder processes
For SnPb solder processes, the product is qualified for MSL 1
according to IPC/JEDEC standard J-STD-020C.
During reflow TPRODUCT must not exceed 225 °C at any time.
Pb-free solder processes
For Pb-free solder processes, the product is qualified for MSL 3
according to IPC/JEDEC standard J-STD-020C.
During reflow TPRODUCT must not exceed 260 °C at any time.
Dry Pack Information
Products intended for Pb-free reflow soldering processes are
delivered in standard moisture barrier bags according to
IPC/JEDEC standard J-STD-033 (Handling, packing, shipping
and use of moisture/reflow sensitivity surface mount devices).
Using products in high temperature Pb-free soldering
processes requires dry pack stor age and handling. In case the
products have been stored in an uncontrolled environment and
no longer can be considered dry, the modules must be baked
according to J-STD-033.
Thermocoupler Attachment
Pin 2 for measurement of maximum
p
roduct tem
p
eratu
r
e, TPRODUCT
Pin 5 for measurement of minimum pin temperature (solder joint)
tem
p
erature, TPIN
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
16
Ericsson Internal
PRODUCT SPEC. 2 (4)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 667 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF [Ksenia Harrisen] See §1 2011-12-05 A Template rev. J
Soldering Information - Hole Mounting
The hole mounted product is intended for plated through hole
mounting by wave or manual sold ering. The pin temperature is
specified to maximum to 270°C for maximum 10 seconds.
A maximum preheat rate of 4°C/s and maximum preheat
temperature of 150°C is suggested. W hen soldering by hand,
care should be taken to avoid direct contact between the hot
soldering iron tip and the pins for more than a few seconds in
order to prevent overheating.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities insid e the prod uct or between the
product and the host board. The cleaning residues may affect
long time reliability and isolation voltage.
Delivery Package Information
The surface mounted product s are delivered in antistatic
injection molded trays (Jedec design guide 4.10D standard)
and in antistatic carrier tape (EIA 481 standard).
The through-hole mounted pr oducts are delivered in antistatic
injection molded trays (Jedec design guide 4.10D standard).
Carrier Tape Specifications
Material Antistatic PS
Surface resistance <107 Ohm/square
Bakeability The tape is not bakable
Tape width, W 56 mm [2.2 inch]
Pocket pitch, P1 36 mm [1.42 inch]
Pocket depth, K0 8.7 mm [0.343 inch]
Reel diameter 380 mm [15 inch]
Reel capacity 200 products /reel
Reel weight Rounded 3.0 kg/full reel
Pin 1
User tape feed direction
Round holes
Elongated holes
Pocket pitch, P1
Tape width, W
EIA standard carrier t ape
Pocket depth, K0
Side view
Top view
Tray Specifications
Material Antistatic PPE
Surface resistance 105 < Ohm/square < 1012
Bakability The trays can be baked at maximum
[125°C for 48 hours]
Tray thickness 18.5 mm [0.728 inch]
Box capacity 150 products (5 full trays/box)
Tray weight 190 g empty, 600 g full tray
X= Vacuum pickup area
All dimensions in mm [inch]
Tolerances:
X.xx mm ±0.13 mm [0.005], X.x mm ±0.26 mm [0.01]
Note: Tray dimensions refer to pocket center. For exact
location of product pick up surface, refer to mechanical
drawing.
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
17
Ericsson Internal
PRODUCT SPEC. 3 (4)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 667 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF [Ksenia Harrisen] See §1 2011-12-05 A Template rev. J
Product Qualification Specification
Characteristics
External visual inspection IPC-A-610
Change of temperature
(Temperature cycling) IEC 60068-2-14 Na Temperature range
Number of cycles
Dwell/transfer time
-40 to 100°C
1000
15 min/0-1 min
Cold (in operation) IEC 60068-2-1 Ad Temperature TA
Duration -45°C
72 h
Damp heat IEC 60068-2-67 Cy Temperature
Humidity
Duration
85°C
85 % RH
1000 hours
Dry heat IEC 60068-2-2 Bd Temperature
Duration 125°C
1000 h
Electrostatic discharge
susceptibility IEC 61340-3-1, JESD 22-A114
IEC 61340-3-2, JESD 22-A115 Human body model (HBM)
Machine Model (MM) Class 2, 2000 V
Class 3, 200 V
Immersion in cleaning solvents IEC 60068-2-45 XA, method 2 Water
Glycol ether
Isopropyl alcohol
55°C
35°C
35°C
Mechanical shock IEC 60068-2-27 Ea Peak acceleration
Duration 100 g
6 ms
Moisture reflow sensitivity 1 J-STD-020C Level 1 (SnPb-eutectic)
Level 3 (Pb Free) 225°C
260°C
Operational life test MIL-STD-202G, method 108A Duration 1000 h
Resistance to soldering heat 2 IEC 60068-2-20 Tb, method 1A Solder temperature
Duration 270°C
10-13 s
Robustness of terminations IEC 60068-2-21 Test Ua1
IEC 60068-2-21 Test Ue1 Through hole mount products
Surface mount products All leads
All leads
Solderability
IEC 60068-2-58 test Td 1
IEC 60068-2-20 test Ta 2
Preconditioning
Temperature, SnPb Eutectic
Temperature, Pb-free
Preconditioning
Temperature, SnPb Eutectic
Temperature, Pb-free
150°C dry bake 16 h
215°C
235°C
Steam ageing
235°C
245°C
Vibration, broad band random IEC 60068-2-64 Fh, method 1 Frequency
Spectral density
Duration
10 to 500 Hz
0.07 g2/Hz
10 min in each direction
Notes
1 Only for products intended for reflow soldering (surface mount products)
2 Only for products intended for wave soldering (plated through hole products)
E
PKU 4000C series Direct Converters
Input 36-75 V, Output up to 20 A / 100 W EN/LZT 146 447 R1D April 2013
© Ericsson AB
Technical Specification
18
