Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
EZIWSON 1/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) 2011-03-30 H
Key Features
Industry standard Sixteenth-brick
33.02 x 22.86 x 9.90 mm (1.3 x 0.9 x 0.39 in.)
Wide output adjust, e.g. 3.3V +10/-40%
1500 Vdc input to output isolation
Meets isolation requirements equivalent to basic
insulation according to IEC/EN/UL 60950-1
More than 3.5 million hours MTBF
General Characteristics
Pre-biased start-up capability
Output over voltage protection
Input under voltage shut-down
Over temperature protection
Monotonic start-up
Output short-circuit protection
Remote sense
Remote control
Output voltage adjust function
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.
EZIWSON 001 52-EN/LZT 146 308 Uen
Approved Checked Date Rev Reference
2011-08-31 G D
Contents
Ordering Information .............................................................2
General Information .............................................................2
Safety Specification .............................................................3
Absolute Maximum Ratings .............................................................4
Electrical Specification
1.2V, 25A / 30W PKU 4318L .......................................... 5
1.5V, 25A / 37.5W PKU 4318H...........................................9
1.8V, 25A / 45W PKU 4418G ........................................13
2.5V, 15A / 37.5W PKU 4319...........................................17
3.3V, 15A / 50W PKU 4510...........................................21
5.0V, 10A / 50W PKU 4511...........................................25
12.0V, 4.2A / 50W PKU 4513...........................................29
15.0V, 3.3A / 50W PKU 4515...........................................33
EMC Specification ........................................................... 37
Operating Information ...........................................................38
Thermal Consideration ........................................................... 40
Connections ...........................................................41
Mechanical Information ...........................................................43
Soldering Information ...........................................................45
Delivery Information ...........................................................45
Product Qualification Specification ........................................................... 46
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
EZIWSON 1/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) 2011-03-30 H
Ordering Information
Product program Output
PKU 4318L 1.2 V, 25 A / 30 W
PKU 4318H 1.5 V, 25 A / 38 W
PKU 4418G 1.8 V, 25 A / 45 W
PKU 4319 2.5 V, 15 A / 38 W
PKU 4510 3.3 V, 15 A / 50 W
PKU 4511 5.0 V, 10 A / 50 W
PKU 4513 12 V, 4.2 A / 50 W
PKU 4515 15 V, 3.3 A / 50 W
Product number and Packaging
PKU 4XXXX n1n2n3n4
Options n1 n2 n3 n4
Mounting
Remote Control logic
Lead length
Delivery package information
Options Description
n1
n2
n3
n4
PI
SI
P
LA
LB
/B
/C
Through hole
Surface mount
Negative *
Positive
5.30 mm *
3.69 mm
4.57 mm
Tray
Tape and Reel (only for surface
mount products)
Example a through-hole mounted, negative logic, short pin
product with tray packaging would be PKU 4510 PILA/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 levels of failure rates based
on the mean and standard deviation.
Mean steady-state failure rate, Std. deviation,
283 nFailures/h 37.7 nFailures/h
MTBF (mean value) for the PKU series = 3.5 Mh.
MTBF at 90% confidence level = 3.0 Mh
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2002/95/EC and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Ericsson
Power Modules products include:
- Lead in high melting temperature type solder (used to
solder the die in semiconductor packages)
- Lead in glass of electronics components and in
electronic ceramic parts (e.g. fill material in chip
resistors)
- Lead as an alloying element in copper alloy containing
up to 4% lead by weight (used in connection pins
made of Brass)
Quality Statement
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, 6σ (sigma), and SPC are intensively in use
to boost the continuous improvements strategy. Infant
mortality or early failures in the products 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 our products.
Warranty
Warranty period and conditions are defined in Ericsson
Power Modules General Terms and Conditions of Sale.
Limitation of Liability
Ericsson Power Modules does not make any other
warranties, expressed or implied including any warranty of
merchantability or fitness 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).
© Ericsson AB 2009
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liability 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 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
2
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
EZIWSON 1/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) 2011-03-30 H
Safety Specification
General information
Ericsson Power Modules DC/DC converters and DC/DC
regulators are designed in accordance with safety
standards IEC/EN/UL 60950-1 Safety of Information
Technology Equip m ent.
IEC/EN/UL 60950-1 contains requirements to prevent injury
or damage due to the following hazards:
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 acceptability
apply for component power 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 components complies with the
requirements of all applicable safety standards and
regulations for the final product.
Component power supplies for general use should comply
with the requirements in IEC 60950-1, EN 60950-1 and
UL 60950-1 Safety of Information Technology Equipment.
There are other more product related standards, e.g.
IEEE 802.3 CSMA/CD (Ethernet) Access Method, and
ETS-300132-2 Power supply interface at the input to
telecommunications equi pment, operated by direct current
(dc), but all of these standards are based on
IEC/EN/UL 60950-1 with regards to safety.
Ericsson Power Modules DC/DC converters and DC/DC
regulators are UL 60950-1 recognized and certified in
accordance with EN 60950-1.
The flammability rating for all construction parts of the
products meet requirements for V-0 class material
according to IEC 60695-11-10, Fire hazard testing, test
flames – 50 W horizontal and vertical flame test methods.
The products should be installed in the end-use equipment,
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 Double or
Reinforced Insulation from the primary circuit (AC mains) in
accordance with IEC/EN/UL 60950-1.
Isolated DC/DC converters
It is recommended that a slow blow fuse is to 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 that imposes a
short circuit on the input source, this fuse will provide the
following functions:
Isolate the fault 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 verified in an electric strength test.
The test voltage (Viso) between input and output is
1500 Vdc or 2250 Vdc (refer to product specification).
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 is 75 Vdc or
less, then the output remains SELV (Safety Extra Low
Voltage) under normal and abnormal operating conditions.
Single fault testing in the input power supply circuit should
be performed with the DC/DC converter connected 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 TNV-2 circuit and testing has
demonstrated compliance with SELV limits in accordance
with IEC/EN/UL60950-1.
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 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
3
Ericsson Internal
PRODUCT SPECIFICATION 1 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/5 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-25 F
Absolute Maximum Ratings
Characteristics min typ max Unit
TP1 Operating Temperature (see Thermal Consideration section) -45 +120 °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 transient (tp 100 ms) 100 V
Positive logic option -0.5 25 V
VRC Remote Control pin voltage
(see Operating Information section) Negative logic option -0.5 25 V
Vadj Adjust pin voltage (see Operating Information section) -0.5 6 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 in the Electrical Specification. If exposed to stress above these limits, function and performance
may degrade in an unspecified manner.
Fundamental Circuit Diagram
Bias supply
and OTP Isolated
Feedback
Primary
Driver
+ In
RC
- In
+ Out
Secondary
Driver
Control and
Supervision
+ Sense
- Sense
- Out
Vadj
Primary Secondary
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
4
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/5 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-25 F
Electrical Specification
1.2 V, 25 A / 30 W PKU 4318L PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 µF
PO Output power 0 30 W
50% of max IO 83.5
max IO 82.5
50% of max IO, VI = 48 V 84
η Efficiency
max IO, VI = 48 V 83
%
Pd Power Dissipation max IO 6.3 10 W
Pli Input idling power IO = 0 A, VI = 53 V 1.8 W
PRC Input standby power VI = 53 V (turned off with RC) 0.13 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 25 A 1.176 1.20 1.224 V
Output adjust range See operating information 1.00 1.32 V
Output voltage tolerance band 0-100% of max IO 1.16 1.24 V
Idling voltage IO = 0 A 1.18 1.22 V
Line regulation max IO 5 12 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 5 10 mV
Vtr Load transient
voltage deviation ±160 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 7 A/µs
25 50 µs
tr Ramp-up time
(from 10−90% of VOi) 5 6 7 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
9 10 11 ms
max IO 0.05 0.1 0.2 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 2.5 A 0.0003 0.0007 0.001 s
RC start-up time max IO 5 ms
max IO 0.5 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 2.5 A 0.0005 s
IO Output current 0 25 A
Ilim Current limit threshold TP1 < max TP1 26 31 35 A
Isc Short circuit current TP1 = 25ºC, see Note 2 20 A
VOac Output ripple & noise See ripple & noise section, VOi 70 130 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 1.55 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, Vo lower than aprox 0.5V.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
5
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/5 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-25 F
Typical Characteristics
1.2 V, 25 A /30 W PKU 4318L PI
Efficiency Power Dissipation
65
70
75
80
85
90
0 5 10 15 2 0 2 5 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0 5 10 15 20 25 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
1. 10
1. 15
1. 2 0
1. 2 5
1. 3 0
0 5 10 15 2 0 2 5 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1.00
1.50
2.00
16 18 20 22 24 26 28 30 32 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
6
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/5 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-25 F
Typical Characteristics
1.2 V, 25 A / 30 W PKU 4318L PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.2 ms/div.s).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (6.25-18.75-6.25 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by using the
following equations:
Output Voltage Adjust Upwards, Increase:
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
−
∆×
∆+×
=22.10
%
511
%6.0 %10020.111.5
Radj kΩ
Example: Increase 4% =>Vout = 1.248Vdc
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
46.0 410020.111.5 kΩ = 128 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
=Radj kΩ
Example: Decrease 2% =>Vout = 1.176 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the Vadj pin.
This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+×= 20.1 20.1
235.0118.011.5 Vdesired
Vadj V
Example: Upwards => 1.30 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+× 20.1 20.130.1
235.0118.011.5 V = 0.70 V
Example: Downwards => 1.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+× 20.1 20.10.1
235.0118.011.5 V = 0.40 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
7
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/5 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-25 F
Typical Characteristics
1.2 V, 25 A / 30 W PKU 4318L PI
Output Current Derating – Open frame
0
5
10
15
20
25
30
0 20 40 60 80 100 [°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
8
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/2 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Electrical Specification
1.5 V, 25 A / 37.5 W PKU 4318H PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 μF
PO Output power 0 37.5 W
50% of max IO 86
max IO 85
50% of max IO, VI = 48 V 86
η Efficiency
max IO, VI = 48 V 85
%
Pd Power Dissipation max IO 6.7 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) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 25 A 1.47 1.50 1.53 V
Output adjust range See operating information 1.00 1.65 V
Output voltage tolerance band 0-100% of max IO 1.455 1.545 V
Idling voltage IO = 0 A 1.48 1.52 V
Line regulation max IO 5 12 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 5 10 mV
Vtr Load transient
voltage deviation ±120 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 7 A/μs
15 50 µs
tr Ramp-up time
(from 10−90% of VOi) 3.5 5 6 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
7 9 10 ms
max IO 0.05 0.1 0.2 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 2.5 A 0.0007 s
RC start-up time max IO 5 ms
max IO 0.6 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 2.5 A 0.00065 s
IO Output current 0 25 A
Ilim Current limit threshold TP1 < max TP1 26 31 35 A
Isc Short circuit current TP1 = 25ºC, see Note 2 20 A
VOac Output ripple & noise See ripple & noise section, VOi 80 150 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 1.9 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, Vo lower than aprox 0.5V.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
9
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/2 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Typical Characteristics
1.5 V, 25 A / 37.5 W PKU 4318H PI
Efficiency Power Dissipation
70
75
80
85
90
95
0 5 10 15 20 25 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0 5 10 15 20 25 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
1. 4 0
1. 4 5
1. 5 0
1. 5 5
1. 6 0
0 5 10 15 2 0 2 5 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1. 0 0
1. 5 0
2.00
16 18 20 22 24 26 28 30 32 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
10
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/2 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Typical Characteristics
1.5 V, 25 A / 37.5 W PKU 4318H PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.2 ms/div.s).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (6.25-18.75-6.25 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1 %10050.111.5
Radj kΩ
Example: Increase 4% =>Vout = 1.56 Vdc
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1 410050.111.5 kΩ = 24.7 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=
Radj kΩ
Example: Decrease 2% =>Vout = 1.47 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 50.1 50.1
45.2225.1 Vdesired
Vadj V
Example: Upwards => 1.60 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.1 50.160.1
45.2225.1 V = 1.39 V
Example: Downwards => 1.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.1 50.100.1
45.2225.1 V = 0.41 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
11
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4318/2 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Typical Characteristics
1.5 V, 25 A / 37.5 W PKU 4318H PI
Output Current Derating – Open frame
0
5
10
15
20
25
30
0 20406080100[°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
12
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4418/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Electrical Specification
1.8 V, 25 A / 45 W PKU 4418G PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 µF
PO Output power 0 45 W
50% of max IO 86.4
max IO 86.0
50% of max IO, VI = 48 V 86.8
η Efficiency
max IO, VI = 48 V 86.3
%
Pd Power Dissipation max IO 7.3 11.5 W
Pli Input idling power IO = 0 A, VI = 53 V 2.4 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 25 A 1.764 1.800 1.836 V
Output adjust range See operating information 1.00 1.98 V
Output voltage tolerance band 0-100% of max IO 1.75 1.85 V
Idling voltage IO = 0 A 1.77 1.82 V
Line regulation max IO 5 12 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 4 10 mV
Vtr Load transient
voltage deviation ±120 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 7 A/µs
20 50 µs
tr Ramp-up time
(from 10−90% of VOi) 3.5 5 6 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
7 9 10 ms
max IO 0.05 0.1 0.2 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 2.5 A 0.0003 0.0007 0.001 s
RC start-up time max IO 7 ms
max IO 0.2 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 2.5 A 0.0007 s
IO Output current 0 25 A
Ilim Current limit threshold TP1 < max TP1 26 31 35 A
Isc Short circuit current TP1 = 25ºC, see Note 2 20 A
VOac Output ripple & noise See ripple & noise section, VOi 85 150 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 2.2 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, Vo lower than aprox 0.5V.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
13
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4418/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Typical Characteristics
1.8 V, 25 A / 45 W PKU 4418G PI
Efficiency Power Dissipation
65
70
75
80
85
90
0 5 10 15 2 0 2 5 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0 5 10 15 2 0 2 5 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
1.70
1.75
1.80
1.85
1.90
0 5 10 15 20 25 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1.00
1.50
2.00
12 16 20 24 28 32 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
14
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4418/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Typical Characteristics
1.8 V, 25 A / 45 W PKU 4418G PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.2 ms/div.s).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 25 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (6.25-18.75-6.25 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by using the
following equations:
Output Voltage Adjust Upwards, Increase:
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
−
∆×
∆+×
=22.10
%
511
%225.1 %10080.111.5
Radj kΩ
Example: Increase 4% =>Vout = 1.872 V
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1 410080.111.5 kΩ = 57 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
=Radj kΩ
Example: Decrease 2% =>Vout = 1.764 V
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the Vadj pin.
This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 80.1 80.1
45.2225.1 Vdesired
Vadj V
Example: Upwards => 1.90 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 80.1 80.190.1
45.2225.1 V = 1.36 V
Example: Downwards => 1.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 80.1 80.100.1
45.2225.1 V = 0.14 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
15
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4418/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 F
Typical Characteristics
1.8 V, 25 A / 45 W PKU 4418G PI
Output Current Derating – Open frame
0
5
10
15
20
25
30
0 20 40 60 80 100 [°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
16
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4319/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 G
Electrical Specification
2.5 V, 15 A / 37.5 W PKU 4319 PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 µF
PO Output power 0 37.5 W
50% of max IO 88.0
max IO 87.3
50% of max IO, VI = 48 V 88.7
η Efficiency
max IO, VI = 48 V 87.6
%
Pd Power Dissipation max IO 5.5 8.5 W
Pli Input idling power IO = 0 A, VI = 53 V 1.5 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 15 A 2.45 2.50 2.55 V
Output adjust range See operating information 1.90 3.00 V
Output voltage tolerance band 0-100% of max IO 2.42 2.58 V
Idling voltage IO = 0 A 2.45 2.55 V
Line regulation max IO 1 10 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 8 15 mV
Vtr Load transient
voltage deviation ±125 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 1 A/µs
20 40 µs
tr Ramp-up time
(from 10−90% of VOi) 3.5 4.0 4.5 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
7 8 9 ms
max IO 0.1 0.2 0.4 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 1.5 A 0.0009 0.0013 0.0015 s
RC start-up time max IO 6 ms
max IO 1 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 1.5 A 0.0015 s
IO Output current 0 15 A
Ilim Current limit threshold TP1 < max TP1 16 18 22 A
Isc Short circuit current TP1 = 25ºC, see Note 2 13 A
VOac Output ripple & noise See ripple & noise section, VOi 55 100 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 3.35 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, Vo lower than aprox 0.5V.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
17
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4319/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 G
Typical Characteristics
2.5 V, 15 A / 37.5 W PKU 4319 PI
Efficiency Power Dissipation
70
75
80
85
90
95
0 3 5 8 10 13 15 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
0358101315[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
2.40
2.45
2.50
2.55
2.60
0 3 5 8 101315[A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1.00
1.50
2.00
2.50
3.00
8 1012 14161820[A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
18
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4319/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 G
Typical Characteristics
2.5 V, 15 A / 37.5 W PKU 4319 PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 15 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (2 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 15 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (1 ms/div.s).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 15 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (3.75-11.25-3.75 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (5 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by using the
following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
−
∆×
∆+×
=22.10
%
511
%225.1
%10050.211.5
Radj kΩ
Example: Increase 4% =>Vout = 2.60 Vdc
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1
410050.211.5 kΩ = 133 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
=Radj kΩ
Example: Decrease 2% =>Vout = 2.45 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the Vadj pin. This
voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 50.2
50.2
45.2225.1 Vdesired
Vadj V
Example: Upwards => 2.75 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.2
50.275.2
45.2225.1 V = 1.47 V
Example: Downwards => 2.25 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.2
50.225.2
45.2225.1 V = 0.98 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
19
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4319/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-01-26 G
Typical Characteristics
2.5 V, 15 A / 37.5 W PKU 4319 PI
Output Current Derating – Open frame
0
5
10
15
20
0
20
40
60
80
100
120
[°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
20
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4510/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 F
Electrical Specification
3.3 V, 15 A / 50 W PKU 4510 PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 µF
PO Output power 0 49.5 W
50% of max IO 89.7
max IO 89.2
50% of max IO, VI = 48 V 89.9
η Efficiency
max IO, VI = 48 V 89.3
%
Pd Power Dissipation max IO 6.0 9.5 W
Pli Input idling power IO = 0 A, VI = 53 V 1.8 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 15 A 3.24 3.30 3.36 V
Output adjust range See operating information and note 2 1.90 3.63 V
Output voltage tolerance band 0-100% of max IO 3.20 3.40 V
Idling voltage IO = 0 A 3.24 3.36 V
Line regulation max IO 1 10 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 8 18 mV
Vtr Load transient
voltage deviation -165/+150 -330/+250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 1 A/µs
20 40 µs
tr Ramp-up time
(from 10−90% of VOi) 2.5 4 4.6 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
6 8 9 ms
max IO 0.1 0.2 0.3 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 1.5 A 0.001 0.0014 0.0016 s
RC start-up time max IO 6 ms
max IO 1 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 1.5 A 0.0015 s
IO Output current 0 15 A
Ilim Current limit threshold TP1 < max TP1 16 18 22 A
Isc Short circuit current TP1 = 25ºC, see Note 3 14 A
VOac Output ripple & noise See ripple & noise section, VOi 60 100 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 4.35 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: VI min 38 V to obtain 3.63 V at 49.5 W output power.
Note 3: RMS current in hiccup mode, Vo lower than aprox 0.5V.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
21
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4510/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 F
Typical Characteristics
3.3 V, 15 A / 50 W PKU 4510 PI
Efficiency Power Dissipation
70
75
80
85
90
95
03691215[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
0 3 6 9 12 15 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
3.20
3.25
3.30
3.35
3.40
03691215[A]
[V]
36 V
48 V
53 V
75 V
0.00
1.00
2.00
3.00
4.00
8 11141720[A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
22
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4510/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 F
Typical Characteristics
3.3 V, 15 A / 50 W PKU 4510 PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 15 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (2 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 15 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (1 ms/div.).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 15 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (3.75 – 11.25 – 3.75 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (5 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
−
∆×
∆+×
=22.10
%
511
%225.1
%10030.311.5
Radj kΩ
Example: Increase 4% =>Vout = 3.432 Vdc
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1
410030.311.5 kΩ = 220 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
=Radj kΩ
Example: Decrease 2% =>Vout = 3.234 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 30.3
30.3
45.2225.1 Vdesired
Vadj V
Example: Upwards => 3.50 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 30.3
30.350.3
45.2225.1 V = 1.37 V
Example: Downwards => 3.10 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 30.3
30.310.3
45.2225.1 V = 1.08 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
23
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4510/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 F
Typical Characteristics
3.3 V, 15 A / 50 W PKU 4510 PI
Output Current Derating – Open frame
0
5
10
15
20
0 20406080100
[°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
24
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4511/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 C
Electrical Specification
5.0 V, 10 A / 50 W PKU 4511 PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 µF
PO Output power 0 50 W
50% of max IO 89.8
max IO 89.6
50% of max IO, VI = 48 V 90.0
η Efficiency
max IO, VI = 48 V 89.8
%
Pd Power Dissipation max IO 5.8 8.5 W
Pli Input idling power IO = 0 A, VI = 53 V 1.8 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 10 A 4.90 5.00 5.10 V
Output adjust range See operating information and note 2 4.00 5.50 V
Output voltage tolerance band 0-100% of max IO 4.85 5.15 V
Idling voltage IO = 0 A 4.90 5.10 V
Line regulation max IO 5 10 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 15 22 mV
Vtr Load transient
voltage deviation ±250 ±500 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 1 A/µs
20 45 µs
tr Ramp-up time
(from 10−90% of VOi) 2 4.5 5.5 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
6 8 10 ms
max IO 0.1 0.2 0.3 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 1 A 0.001 0.0012 0.0014 s
RC start-up time max IO 5.5 ms
max IO 0.8 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 1 A 0.0011 s
IO Output current 0 10 A
Ilim Current limit threshold TP1 < max TP1 10.5 13.2 15.4 A
Isc Short circuit current TP1 = 25ºC, see Note 3 8 A
VOac Output ripple & noise See ripple & noise section, VOi 50 100 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 6.1 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: VI min 38 V to obtain 5.50 V at 50 W output power.
Note 3: RMS current in hiccup mode, Vo lower than aprox 0.5V.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
25
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4511/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 C
Typical Characteristics
5.0 V, 10 A / 50 W PKU 4511 PI
Efficiency Power Dissipation
70
75
80
85
90
95
0246810[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
0246 810[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
4.90
4.95
5.00
5.05
5.10
024 6810[A]
[V]
36 V
48 V
53 V
75 V
0.00
1.00
2.00
3.00
4.00
5.00
6 8 10 12 14 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
26
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4511/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 C
Typical Characteristics
5.0 V, 10 A / 50 W PKU 4511 PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 10 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (2 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 10 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.2 ms/div.).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 10 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (2.5 – 7.5 – 2.5 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (5 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
−
∆×
∆+×
=22.10
%
511
%225.1
%1000.511.5
Radj kΩ
Example: Increase 3% =>Vout = 5.15 Vdc
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
3
511
3225.1
31000.511.5 kΩ = 535 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
=
Radj kΩ
Example: Decrease 3% =>Vout = 4.85 Vdc
22.10
3
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 160 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 00.5
00.5
45.2225.1 Vdesired
Vadj V
Example: Upwards => 5.30 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 00.5
00.530.5
45.2225.1 V = 1.372 V
Example: Downwards => 4.80 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 00.5
00.580.4
45.2225.1 V = 1.127 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
27
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4511/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 C
Typical Characteristics
5.0 V, 10 A / 50 W PKU 4511 PI
Output Current Derating – Open frame
0
2
4
6
8
10
12
0 20 40 60 80 100 [°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
28
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4513/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 E
Electrical Specification
12 V, 4.17 A / 50 W PKU 4513 PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 33.5 V
CI Internal input capacitance 0.5 µF
PO Output power 0 50 W
50% of max IO 88.5
max IO 89.0
50% of max IO, VI = 48 V 89.5
η Efficiency
max IO, VI = 48 V 89.5
%
Pd Power Dissipation max IO 6 9.5 W
Pli Input idling power IO = 0 A, VI = 53 V 2 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 4.17 A 11.76 12.00 12.24 V
Output adjust range See operating information and note 2 9.60 13.20 V
Output voltage tolerance band 0-100% of max IO 11.64 12.36 V
Idling voltage IO = 0 A 11.70 12.30 V
Line regulation max IO 20 50 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 20 50 mV
Vtr Load transient
voltage deviation ±500 ±1000 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 1 A/µs
14 50 µs
tr Ramp-up time
(from 10−90% of VOi) 8 11 17 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
13 16 22 ms
max IO 0.1 0.2 0.3 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 0.417 A 0.002 0.0025 0.003 s
RC start-up time max IO 14 ms
max IO 0.2 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 0.417 A 0.0025 s
IO Output current 0 4.17 A
Ilim Current limit threshold TP1 < max TP1 4.4 5.3 6.5 A
Isc Short circuit current TP1 = 25ºC, see Note 3 4.2 A
VOac Output ripple & noise See ripple & noise section, VOi 60 120 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 15 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: VI min 38V to obtain 13.2V at 50W output power.
Note 3: RMS current in hiccup mode, Vo lower than aprox 0.5V.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
29
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4513/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 E
Typical Characteristics
12 V, 4.17 A / 50 W PKU 4513 PI
Efficiency Power Dissipation
70
75
80
85
90
95
01234[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
01234
[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
11.80
11.90
12.00
12.10
12.20
01234[A]
[V]
36 V
48 V
53 V
75 V
0.00
4.00
8.00
12.00
2.53.03.54.04.55.05.5[A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
30
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4513/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 E
Typical Characteristics
12 V, 4.17 A / 50 W PKU 4513 PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 4.2 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 4.2 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.2 ms/div.).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 4.2 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (1.05 - 3.15 - 1.05 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (1 V/div.).
Bottom trace: load current (1 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
−
∆×
∆+×
=22.10
%
511
%225.1 %1000.1211.5
Radj kΩ
Example: Increase 4% =>Vout = 12.48 V
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1 41000.1211.5 kΩ = 1164 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
=
Radj kΩ
Example: Decrease 2% =>Vout = 11.76 V
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 0.12 0.12
45.2225.1 Vdesired
Vadj V
Example: Upwards => 12.5 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.12 0.125.12
45.2225.1 V = 1.33 V
Example: Downwards => 11.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.12 0.120.11
45.2225.1 V = 1.02 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
31
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4513/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-04 E
Typical Characteristics
12 V, 4.17 A / 50 W PKU 4513 PI
Output Current Derating – Open frame
0
1
2
3
4
5
0 20406080100[°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
32
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4515/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 C
Electrical Specification
15 V, 3.3 A / 50 W PKU 4515 PI
TP1 = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 1 µF. See Operating Information section for selection of capacitor types.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
See Note 1 27 28 29 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 33.5 V
CI Internal input capacitance 0.5 µF
PO Output power 0 49.5 W
50% of max IO 89.5
max IO 88.7
50% of max IO, VI = 48 V 89.9
η Efficiency
max IO, VI = 48 V 88.8
%
Pd Power Dissipation max IO 6.3 9.5 W
Pli Input idling power IO = 0 A, VI = 53 V 1.8 W
PRC Input standby power VI = 53 V (turned off with RC) 0.14 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy TP1 = +25°C, VI = 53 V, IO = 3.3 A 14.70 15.00 15.30 V
Output adjust range See operating information 12.00 16.50 V
Output voltage tolerance band 0-100% of max IO 14.55 15.45 V
Idling voltage IO = 0 A 14.55 15.45 V
Line regulation max IO 60 130 mV
VO
Load regulation VI = 53 V, 0-100% of max IO 12 50 mV
Vtr Load transient
voltage deviation ±400 ±800 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 1 A/µs
See note 3 30 60 µs
tr Ramp-up time
(from 10−90% of VOi) 3 6 9 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100% of max IO
8 12 16 ms
max IO 0.2 0.4 0.8 ms
tf VI shut-down fall time
(from VI off to 10% of VO) IO = 0.33 A 0.0025 0.003 0.0035 s
RC start-up time max IO 10 ms
max IO 0.25 ms
tRC RC shut-down fall time
(from RC off to 10% of VO) IO = 0.33 A 0.0012 s
IO Output current 0 3.3 A
Ilim Current limit threshold TP1 < max TP1 3.6 4.3 5 A
Isc Short circuit current TP1 = 25ºC, see Note 2 3.0 A
VOac Output ripple & noise See ripple & noise section, VOi 65 130 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 0-100% of
max IO 19 V
Note 1: See Operation information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, Vo lower than aprox 0.5V.
Note 3: Measured with 100 µF tantalum (ESR aprox 80 mΩ) on the output.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
33
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4515/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 C
Typical Characteristics
15 V, 3.3 A / 50 W PKU 4515 PI
Efficiency Power Dissipation
70
75
80
85
90
95
0123
[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0123
[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at TP1 = +25°C Dissipated power vs. load current and input voltage at
TP1 = +25°C
Output Characteristics Current Limit Characteristics
14 . 7 0
14 . 8 0
14 . 9 0
15 . 0 0
15 . 10
15 . 2 0
15 . 3 0
0123
[A]
[V]
36 V
48 V
53 V
75 V
0.00
5.00
10 . 0 0
15 . 0 0
20.00
2.0 2.5 3.0 3.5 4.0 4.5 5.0 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at TP1 = +25°C Output voltage vs. load current at IO > max IO , TP1 = +25°C
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
34
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4515/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 C
Typical Characteristics
15 V, 3.3 A / 50 W PKU 4515 PI
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 3.3 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 3.3 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.2 ms/div.).
Output Ripple & Noise Output Load Transient Res p onse
Output voltage ripple at:
TP1 = +25°C, VI = 53 V,
IO = 3.3 A resistive load.
Trace: output voltage (50 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (0.82 – 2.47 – 0.82 A) at:
TP1 =+25°C, VI = 53 V.
Top trace: output voltage (1 V/div.).
Bottom trace: load current (1 A/div.).
Time scale: (0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
−
∆×
∆+×
=22.10
%
511
%225.1
%1000.1511.5
Radj kΩ
Example: Increase 4% =>Vout = 15.60 V
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1
41000.1511.5 kΩ = 1489 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
=Radj kΩ
Example: Decrease 2% =>Vout = 14.70 V
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 0.15
0.15
45.2225.1 Vdesired
Vadj V
Example: Upwards => 15.60 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.15
0.156.15
45.2225.1 V = 1.323 V
Example: Downwards => 14.70 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.15
0.157.14
45.2225.1 V = 1.176 V
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
35
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 2/1301-BMR 602 4515/1 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 C
Typical Characteristics
15 V, 3.3 A / 50 W PKU 4515 PI
Output Current Derating – Open frame
0
1
2
3
4
0 20406080100[°C]
[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.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
36
Ericsson Internal
PRODUCT SPECIFICATION 1 (6)
Prepared (also subject responsible if other) No.
EQUENXU 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 G
EMC Specification
Conducted EMI measured according to EN55022, CISPR 22
and FCC part 15J (see test set-up). See Design Note 009 for
further information. The fundamental switching frequency is
320 kHz for PKU 4511 PI @ VI = 53 V, max IO.
Conducted EMI Input terminal value (typ)
EMI without filter
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/DCC6
Filter components:
C1, 2, 6 = 1 µF/100 V
Ceramic
C3, 4 = 2.2 nF/1500 V
Ceramic
C5 = 100 µF/100 V
Electrolytic
EMI with filter
Test set-up
Layout recommendations
The radiated EMI performance of the Product will depend on
the PCB layout and ground layer design. It is also important to
consider the stand-off of the product. If a ground layer is used,
it should be connected to the output of the product 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 measured according to figure below.
See Design Note 022 for detailed information.
Output ripple and noise test setup
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
37
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EQUENXU 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 G
Operating information
Input Voltage
The input voltage range 36 to 75Vdc meets the requirements
of the European Telecom Standard ETS 300 132-2 for normal
input voltage range in –48 and –60 Vdc systems, -40.5 to -
57.0 V and –50.0 to -72 V respectively.
At input voltages exceeding 75 V, the power loss will be higher
than at normal input voltage and TP1 must be limited to
absolute max +120°C. The absolute maximum continuous
input voltage is 80 Vdc.
Turn-off Input Voltage
The products 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 1V. On the 15V version, the mimimum hysteresis
between turn on and turn off input voltage is 3V.
Remote Control (RC)
The products are fitted with a
remote control function referenced
to the primary negative input
connection (-In), with negative and
positive logic options available.The
RC function allows the product 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 sink current is 0.6 mA. When the RC
pin is left open, the voltage generated on the RC pin is
10 – 22 V. The standard product is provided with “negative
logic” remote control and will be off until the RC pin is
connected to the -In. To turn on the product the voltage
between RC pin and -In should be less than 1V. To turn off the
converter the RC pin should be left open, or connected to a
voltage higher than 8 V referenced to -In. In situations where it
is desired to have the product to power up automatically
without the need for control signals or a switch, the RC pin can
be wired directly 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. When the RC pin is left open, the product starts up
automatically when the input voltage is applied. Turn off is
achieved by connecting the RC pin to the -In. To ensure safe
turn off the voltage difference between RC pin and the -In pin
shall be less than 1V. The product will restart automatically
when this connection is opened.
See Design Note 021 for detailed information.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the product. It is important that
the input source has low characteristic impedance. The
products are designed for stable operation without external
capacitors connected to the input or 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
addition of a 22 - 100 µF capacitor across the input of the
product will ensure stable operation. The capacitor is not
required when powering the product from an input source with
an inductance below 10 µH. The minimum required
capacitance value depends on the output power and the input
voltage. The higher output power the higher input capacitance
is needed. Approximately doubled capacitance value is
required for a 24 V input voltage source compared to a 48V
input voltage source.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load can
be improved by addition of decoupling capacitors at the load.
The most effective technique is to locate low ESR ceramic and
electrolytic capacitors as close to the load as possible, using
several parallel capacitors to lower the effective ESR. The
ceramic capacitors will handle high-frequency dynamic load
changes while the electrolytic capacitors are used to handle
low frequency dynamic load changes. It is equally important to
use low resistance and low inductance PCB layouts and
cabling.
External decoupling capacitors will become part of the
product’s control loop. The control loop is optimized for a wide
range of external capacitance and the maximum
recommended value that could be used without any additional
analysis is found in the Electrical specification.
The ESR of the capacitors is a very important parameter.
Stable operation is guaranteed with a verified ESR value of
>10 mΩ across the output connections.
For further information please contact your local Ericsson
Power Modules representative.
Output Voltage Adjust (Vadj)
The products have an Output Voltage Adjust pin (Vadj). This
pin can be used to adjust the output voltage above or below
Output voltage initial setting.
When increasing the output voltage, the voltage at the output
pins (including any remote sense compensation ) must be
kept below the threshold of the over voltage protection, (OVP)
to prevent the product from shutting down. At increased output
voltages the maximum power rating of the product remains the
same, and the max output current must be decreased
correspondingly.
To increase the voltage the resistor should be connected
between the Vadj pin and +Sense pin. The resistor value of the
Output voltage adjust function is according to information
given under the Output section for the respective product.
To decrease the output voltage, the resistor should be
connected between the Vadj pin and –Sense pin.
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
38
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EQUENXU 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 G
Parallel Operation
Two products may be paralleled for redundancy if the total
power is equal or less than PO max. It is not recommended to
parallel the products without using external current sharing
circuits.
See Design Note 006 for detailed information.
Remote Sense
The products have remote sense that can be used to
compensate for voltage drops between the output and the
point of load. The sense traces should be located close to the
PCB ground layer to reduce noise susceptibility. The remote
sense circuitry will compensate for up to 10% voltage drop
between output pins and the point of load.
If the remote sense is not needed +Sense should be
connected to +Out and -Sense should be connected to -Out.
Over Temperature Protection (OTP)
The products are protected from thermal overload by an
internal over temperature shutdown circuit.
When TP1 as defined in thermal consideration section exceeds
135°C the product will shut down. The product will make
continuous attempts to start up (non-latching mode) and
resume normal operation automatically when the temperature
has dropped >5°C below the temperature threshold.
Over Voltage Protection (OVP)
{The products have output over voltage protection that will
shut down the product in over voltage conditions. The product
will make continuous attempts to start up (non-latching mode)
and resume normal operation automatically after removal of
the over voltage condition.
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). If the output
voltage decreases down to 0.5-0.6 V the converter shuts down
and will make continuous attempts to start up (non-latching
mode, hiccup). The converter will resume normal operation
after removal of the overload. The load distribution should be
designed for the maximum output short circuit current
specified.
Pre-bias Start-up
The product has a Pre-bias start up functionality and will not
sink current during start up if a pre-bias source is present at
the output terminals.
Typical Pre-bias source levels for no negative current:
Up to 0.5 V for PKU 4318L (1.2 V)
Up to 0.7 V for PKU 4318H (1.5 V)
Up to 1.0 V for PKU 4418G (1.8 V)
Up to 1.5 V for PKU 4319 (2.5 V)
Up to 2.0 V for PKU 4510 (3.3 V)
Up to 3.0 V for PKU 4511 (5 V)
Up to 6.0 V for PKU 4513 (12 V)
Up to 9.0 V for PKU 4515 (15 V)
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
39
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EQUENXU 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 G
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 mainly 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 current 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), 8-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 305 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at positions P1. The temperature at
these positions should not exceed the max values provided in
the table below.
See Design Note 019 for further information.
Definition of product operating temperature
The product operating temperatures is used to monitor the
temperature of the product, and proper thermal conditions can
be verified by measuring the temperature at positions P1. The
temperature at these positions Tref should not exceed the
maximum temperatures in the table below. The number of
measurement points may vary with different thermal design
and topology. Temperatures above maximum TP1, measured
at the reference point P1 are not allowed and may cause
permanent damage.
Position Description Max Temp.
P1 Mosfet Tref
P1
Open frame
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
40
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EQUENXU 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D (Betty Wu) EXUEFYA 2010-02-08 G
Ambient Temperature Calculation
By using the thermal resistance the maximum allowed ambient
temperature can be calculated.
1. The power loss is calculated by using the formula
((1/η) - 1) × output power = power losses (Pd).
η = efficiency of converter. For example 89.2 % = 0.892
2. Find the thermal resistance (Rth) in the Thermal Resistance
graph found in the Output section for each model.
Calculate the temperature increase (∆T).
∆T = Rth x Pd
3. Max allowed ambient temperature is:
Max Tref - ∆T.
Example PKU 4510 (@ VI 53 V &15 A) at 1 m/s:
1. (1/0.892 - 1) × 49.5 W = 5.99 W
2. 5.99 W × 9.2°C/W = 55.1°C
3. 120 °C – 55.1°C = max ambient temperature is 64.9°C
The actual temperature will be dependent on several factors
such as the PCB size, number of layers and direction of
airflow.
Connections
Pin Designation Function
1 +In Positive Input
2 RC Remote Control
3 -In Negative Input
4 -Out Negative Output
5 -Sen Negative Sense
6 Vadj Output Voltage Adjust
7 +Sen Positive Sense
8 +Out Positive Output
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
41
Ericsson Internal
PRODUCT SPEC. MECHANICAL 1 (3)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D/V [Betty Wu] See §1 2010-02-25 D Template rev. F
Mechanical Information - Hole Mount Version
All 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 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
42
Ericsson Internal
PRODUCT SPEC. MECHANICAL 2 (3)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D/V [Betty Wu] See §1 2010-02-25 D Template rev. F
Mechanical Information - Surface Mou nt Version
All 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 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
43
Ericsson Internal
PRODUCT SPEC. 1 (4)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D/V [Betty Wu] See §1 2010-02-25 D H
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 across
the host PCB 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 30 s 30 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
Time 25°C to peak
Temperature
Minimum Pin Temperature Recommendations
Pin number 8 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 30 seconds and a peak temperature of 210°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 30 seconds and a peak
temperature of 235°C on all solder joints is recommended to
ensure a reliable solder joint.
Maximum Product Temperature Requirements
Top of the product PCB 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 bak ed
according to J-STD-033.
Thermocoupler Attachment
P in 8 f or me asu remen t o f minimum
sold er jo int temp erature , TPIN
Pin 2 for me asurement o f ma ximum peak product
reflow temp eratu re,TP
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
44
Ericsson Internal
PRODUCT SPEC. 2 (4)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D/V [Betty Wu] See §1 2010-02-25 D H
Soldering Information - Hole Mounting
The hole mounted product is intended for plated throug h 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 hole mount products are delivered in antistatic injection
molded trays (Jedec design guide 4.10D standard).
The surface mount products are delivered in antistatic
injection molded trays (Jedec design guide 4.10D standard)
and in antistatic carrier tape (EIA 481 standard).
Carrier Tape Specifications
Material Antistatic PS
Surface resistance < 107 Ohm/square
Bakeability The tape is not bakeable
Tape width, W 56 mm [2.2 inch]
Pocket pitch, P1 36 mm [1.42 inch]
Pocket depth, K0 11.4 mm [0.449 inch]
Reel diameter 380 mm [15 inch]
Reel capacity 200 products /reel
Reel weight 3 kg/full reel
Pin 1
User tape feed direction
Round holes
Elon
g
ated holes
Pocket pitch, P1
Tape width, W
EIA standard carrier tape
Pocket depth, K0
Side view
Top view
Tray Specifications
Material Antistatic PPE
Surface resistance 105 < Ohm/square < 1012
Bakeability The trays can be baked at maximum
125°C for 48 hours
Tray thickness 20 mm [0.787 inch]
Box capacity 150 products (5 full trays/box)
Tray weight 520 g empty, 130 g full tray
E
PKU 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
45
Ericsson Internal
PRODUCT SPEC. 3 (4)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/D/V [Betty Wu] See §1 2010-02-25 D H
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 4000 series Direct Converters
Input 36-75 V, Output up to 25 A / 50 W
EN/LZT 146 308 R4C Aug 2011
© Ericsson AB
Technical Specification
46
