Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
EWEIXIE 1/1301- BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) MICMROS 2008-5-23 C
Key Features
• Industry standard low profile Eighth-brick
58.4 x 22.7 x 8.6 mm (2.3 x 0.89 x 0.34 in.)
• High efficiency, typ. 91 % at 3.3V/40A
• 1500 Vdc input to output isolation
• Meets isolation requirements equivalent to basic
insulation according to IEC/EN/UL 60950
• More than 1 million hours MTBF
General Characteristics
• Suited for narrow board pitch applications
(15 mm/0.6 in)
• Secondary side control for tighter regulation
• Over temperature protection
• Over current protection
• Over voltage protection
• Optional latching OVP, OCP, OTP
• Monotonic startup
• Start up into Pre-biased load
• Remote sense
• Remote control
• Output voltage adjust function
• Through hole and surface mount option
• Optional baseplate
• Highly automated manufacturing ensures quality
• ISO 9001/14001 certified supplier
Safety Approvals Design for Environment
Meets requirements in high-
temperature lead-free soldering
processes.
Limited Internal
TABLE OF CONTENTS 1 (1)
Prepared (also subject responsible if other) No.
EWEIXIE 001 52-EN/L ZT 146 377 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) 2008-6-24 G
Contents
General Information ............................................................. 2
Safety Specification ............................................................. 3
Absolute Maximum Ratings ............................................................. 4
Product Program Ordering No.
1.2V, 60A / 72W Electrical Specification PKB 4718LC PI....................... 5
1.5V, 60A / 90W Electrical Specification PKB 4918HC PI ...................... 9
1.8V, 60A / 108W Electrical Specification PKB 4118GC PI .................... 13
3.3V, 40A / 132W Electrical Specification PKB 4110C PI....................... 17
5.0V, 28A / 140W Electrical Specification PKB 4111C PI....................... 21
12.0V, 12A / 144W Electrical Specification PKB 4113C PI....................... 25
EMC Specification ........................................................... 29
Operating Information ........................................................... 30
Thermal considerations ........................................................... 32
Connections ........................................................... 33
Mechanical Information ........................................................... 34
Soldering Information ........................................................... 37
Delivery Information ........................................................... 38
Product Qualification Specification ........................................................... 39
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
EWEIXIE 1/1301- BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) MICMROS 2008-5-23 C
General Information
Ordering Information
See Contents for individual product ordering numbers.
Option Suffix Ordering No.
Surface mount
Positive Remote Control Logic
Latching OCP
Latching OTP
Latching OVP
Latching OTP and OVP
Latching OCP and OTP
Latching OCP and OVP
All protection features latching
Increased Stand-off height
Lead length 3.69 mm (0.145 in)
Lead length 4.57 mm (0.180 In)
Baseplate
SI
P
LI
LT
LV
LP
LIT
LIV
LPA
M
LA
LB
HS
PKB 4110C SI
PKB 4110C PIP
PKB 4110C PILI
PKB 4110C PILT
PKB 4110C PILV
PKB 4110C PILP
PKB 4110C PILIT
PKB 4110C PILIV
PKB 4110C PILPA
PKB 4110C PIM
PKB 4110C PILA
PKB 4110C PILB
PKB 4110C PIHS
Note: As an example a positive logic, short pin, lathing OVP, baseplate
product would be PKB 4110C PIPLVHSLA.
Reliability
The Mean Time Between Failure (MTBF) is calculated at full
output power and an operating ambient temperature (T
A
) of
+40°C, which is a typical condition in Information and
Communication Technology (ICT) equipment. Different
methods could be used to calculate the predicted MTBF
and failure rate which may give different results. Ericsson
Power Modules currently uses Telcordia SR332.
Predicted MTBF for the series is:
- 1 million hours according to Telcordia SR332, issue 1,
Black box technique.
Telcordia SR332 is a commonly used standard method
intended for reliability calculations in ICT equipment. The
parts count procedure used in this method was originally
modelled on the methods from MIL-HDBK-217F, Reliability
Predictions of Electronic Equipment. It assumes that no
reliability data is available on the actual units and devices
for which the predictions are to be made, i.e. all predictions
are based on generic reliability parameters.
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).
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
2
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
EWEIXIE 1/1301- BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) MICMROS 2008-5-23 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 Equipment
.
IEC/EN/UL60950 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
Directives for the final product.
Component power supplies for general use should comply
with the requirements in IEC60950, EN60950 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
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/UL60950.
Isolated DC/DC converters
It is recommended that a slow blow fuse with a rating
twice the maximum input current per selected product 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 following
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 verified in an electric strength test.
The test voltage (V
iso
) 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 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 TNV2 circuit and testing has
demonstrated compliance with SELV limits and isolation
requirements equivalent to Basic Insulation in accordance
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
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
3
Ericsson Internal
PRODUCT SPECIFICATION 1 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
Absolute Maximum Ratings
Characteristics min typ max Unit
T
ref
Operating Temperature (see Thermal Consideration section) -40 +125 °C
T
S
Storage temperature -55 +125 °C
V
I
Input voltage -0.5 +80 V
V
iso
Isolation voltage (input to output test voltage), see note 1 1500 Vdc
V
tr
Input voltage transient (Tp 100 ms) 100 V
Positive logic option 0 16 V
V
RC
Remote Control pin voltage
(see Operating Information section) Negative logic option 0 16 V
V
adj
Adjust pin voltage (see Operating Information section) -0.5 2xV
oi
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.
Note 1: Isolation voltage (input/output to base-plate) max 750Vdc.
Fundamental Circuit Diagram
Vadj
-In
+In
+Out
-Out
Driver
Control
Driver
RC
Auxillary
Supply
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
4
Ericsson Internal
PRODUCT SPECIFICATION 2 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.2 V/60 A Electrical Specification PKB 4718LC PI
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 29 31 33 V
V
Ion
Turn-on input voltage Increasing input voltage 30 33 36 V
C
I
Internal input capacitance 1
µ
F
P
O
Output power 0 72 W
50 % of max I
O
87.5
max I
O
86
50 % of max I
O
, V
I
= 48 V 88
η Efficiency
max I
O
, V
I
= 48 V 86
%
P
d
Power Dissipation max I
O
12.2 15.9 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 2.5 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 74 mW
f
s
Switching frequency 0-100 % of max I
O
250 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 60 A 1.176 1.2 1.224 V
Output adjust range See operating information 0.96 1.32 V
Output voltage tolerance band 10-100% of max I
O
1.17 1.23 V
Idling voltage I
O
= 0 A 1.17 1.23 V
Line regulation max I
O
0 5 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
0 5 mV
V
tr
Load transient
voltage deviation ±200 mV
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s,
see Note 1 50 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
8 11 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 13 18 ms
max I
O
0.1
m
s
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0 A 13 s
RC start-up time max I
O
11 ms
max I
O
0.2 ms
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0 A 8 s
I
O
Output current 0 60 A
I
lim
Current limit threshold V
O
= 1.1V, T
ref
< max T
ref
61 65 81 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.2V, see Note 2 75 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
Oi
40 120 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
1.56 V
Note 1: Output filter according to Ripple & Noise section.
Note 2: RMS current in hiccup mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
5
Ericsson Internal
PRODUCT SPECIFICATION 3 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.2 V/60 A Typical Characteristics PKB 4718LC PI
Efficiency Power Dissipation
70
75
80
85
90
95
0 102030405060[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
12
14
16
0 102030405060
[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25°C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Characteristics
Current Limit Characteristics
1.198
1.200
1.202
1.204
1.206
1.208
0 102030405060[A]
[V]
36 V
48 V
53 V
75 V
0.36
0.57
0.78
0.99
1.20
1.41
60 62 64 66 68 70 72 [A]
[V]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
When reaching 30% of nominal output voltage the converter will
go into hic-up mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
6
Ericsson Internal
PRODUCT SPECIFICATION 4 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.2 V/60 A Typical Characteristics PKB 4718LC PI
Start-up Shut-down
Start-up enabled by connecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 60 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 V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
=30 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (50 us/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 60 A resistive load.
Trace: output voltage (20mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (15-45-15 A) at:
T
ref
=+25°C, V
I
= 53 V.
Top trace: output voltage (200mV/div.).
Bottom trace: load current (20 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:
()()
⎟
⎠
⎞
⎜
⎝
⎛
∆
∆×+
−
∆×
∆+×
×= %
%2100
%62.0
%1002.1
11.5Radj
kΩ
Example: Increase 4% =>V
out
= 1.248 Vdc
()()
⎟
⎠
⎞
⎜
⎝
⎛×+
−
×
+×
×4
42100
462.0
41002.1
11.5
kΩ = 119 kΩ
Output Voltage Adjust Downwards, Decrease:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
×= 2
%
100
11.5Radj
kΩ
Example: Decrease 2% =>V
out
= 1.176 Vdc
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−× 2
2
100
11.5
kΩ = 245 kΩ
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
7
Ericsson Internal
PRODUCT SPECIFICATION 5 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.2 V/60 A Typical Characteristics
PKB 4718LC PI
Output Current Derating – Open frame
0
10
20
30
40
50
60
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
V
I
= 53 V. See Thermal Consideration section.
Output Current Derating – Base Plate Thermal Resistance – Base plate
0
15
30
45
60
0 20 40 6 0 8 0 1 00 120
[
°C
]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
0.0 0.5 1.0 1 .5 2.0 2.5 3.0 [m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
8
Ericsson Internal
PRODUCT SPECIFICATION 6 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.5 V/60 A Electrical Specification PKB 4918HC PI
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 29 32 35 V
V
Ion
Turn-on input voltage Increasing input voltage 30 33 36 V
C
I
Internal input capacitance 1
µ
F
P
O
Output power 0 90 W
50 % of max I
O
88
max I
O
87
50 % of max I
O
, V
I
= 48 V 88.5
η Efficiency
max I
O
, V
I
= 48 V 87
%
P
d
Power Dissipation max I
O
14.1 15.9 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 3.2 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 99 mW
f
s
Switching frequency 0-100 % of max I
O
250 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 60 A 1.47 1.5 1.53 V
Output adjust range See operating information 1.20 1.65 V
Output voltage tolerance band 10-100% of max I
O
1.47 1.53 V
Idling voltage I
O
= 0 A 1.47 1.53 V
Line regulation max I
O
1 5 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
10 15 mV
V
tr
Load transient
voltage deviation ±180 mV
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s,
see Note 1 110 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
8 11 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 13 18 ms
max I
O
21 µs
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0.2 A 48 ms
RC start-up time max I
O
12 ms
max I
O
10 µs
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0.2 A 48 ms
I
O
Output current 0 60 A
I
lim
Current limit threshold V
O
= 1.4V, T
ref
< max T
ref
64 66 68 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.2V, see Note 2 70 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
Oi
40 120 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
1.95 V
Note 1: Output filter according to Ripple & Noise section.
Note 2: RMS current in hiccup mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
9
Ericsson Internal
PRODUCT SPECIFICATION 7 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.5 V/60 A Typical Characteristics PKB 4918HC PI
Efficiency Power Dissipation
70
75
80
85
90
95
0102030405060[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
12
14
16
0 102030405060[A]
[W ]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25°C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Characteristics
Current Limit Characteristics
1.420
1.460
1.500
1.540
1.580
1.620
0 102030405060[A]
[V]
36 V
48 V
53 V
75 V
0.45
0.80
1.15
1.50
1.85
60 63 66 69 72 7 5 [A]
[V]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
When reaching 30% of nominal output voltage the converter will
go into hic-up mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
10
Ericsson Internal
PRODUCT SPECIFICATION 8 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.5 V/60 A Typical Characteristics PKB 4918HC PI
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 60 A resistive load.
Top trace: output voltage (1.0 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 =60 A resistive load.
Top trace: output voltage (1.0 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (100 us/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 60 A resistive load.
Trace: output voltage (20mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (15-45-15 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (200mV/div.).
Bottom trace: load current (20 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:
()()
⎟
⎠
⎞
⎜
⎝
⎛
∆
∆×+
−
∆×
∆+×
×= %
%2100
%62.0
%1005.1
11.5Radj
kΩ
Example: Increase 4% =>V
out
= 1.56 Vdc
()()
⎟
⎠
⎞
⎜
⎝
⎛×+
−
×
+×
×4
42100
462.0
41005.1
11.5
kΩ = 183 kΩ
Output Voltage Adjust Downwards, Decrease:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
×= 2
%
100
11.5Radj
kΩ
Example: Decrease 2% =>V
out
= 1.47 Vdc
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−× 2
2
100
11.5
kΩ = 245 kΩ
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
11
Ericsson Internal
PRODUCT SPECIFICATION 9 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.5 V/60 A Typical Characteristics
PKB 4918HC PI
Output Current Derating – Open frame
0
10
20
30
40
50
60
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
V
I
= 53 V. See Thermal Consideration section.
Output Current Derating – Base plate Thermal Resistance – Base plate
0
15
30
45
60
0 20 4 0 6 0 80 100 120
[
°C
]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
0.0 0.5 1.0 1.5 2.0 2.5 3.0 [m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel
with airflow and test conditions as per
the Thermal consideration section.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
12
Ericsson Internal
PRODUCT SPECIFICATION 10 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.8 V/60 A Electrical Specification PKB 4118GC PI
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 29 32 35 V
V
Ion
Turn-on input voltage Increasing input voltage 30 33 36 V
C
I
Internal input capacitance 1
µ
F
P
O
Output power 0 108 W
50 % of max I
O
89
max I
O
88
50 % of max I
O
, V
I
= 48 V 89.5
η Efficiency
max I
O
, V
I
= 48 V 88
%
P
d
Power Dissipation max I
O
14.7 16.8 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 3.5 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 82 mW
f
s
Switching frequency 0-100 % of max I
O
250 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 60 A 1.76 1.8 1.84 V
Output adjust range See operating information 1.44 1.98 V
Output voltage tolerance band 10-100% of max I
O
1.76 1.84 V
Idling voltage I
O
= 0 A 1.76 1.84 V
Line regulation max I
O
1 5 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
10 15 mV
V
tr
Load transient
voltage deviation ±180 mV
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s,
see Note 1 120 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
8 11 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 13 18 ms
max I
O
35 µs
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0.2 A 9 ms
RC start-up time max I
O
11 ms
max I
O
35 µs
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0.2 A 9 ms
I
O
Output current 0 60 A
I
lim
Current limit threshold V
O
= 1.7V, T
ref
< max T
ref
64 66 68 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.2V, see Note 2 72 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
Oi
40 120 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
2.34 V
Note 1: Output filter according to Ripple & Noise section.
Note 2: RMS current in hiccup mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
13
Ericsson Internal
PRODUCT SPECIFICATION 11 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.8 V/60 A Typical Characteristics PKB 4118GC PI
Efficiency Power Dissipation
70
75
80
85
90
95
0102030405060[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
12
14
16
0 102030405060[A]
[W ]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25°C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Characteristics
Current Limit Characteristics
1.720
1.760
1.800
1.840
1.880
1.920
0 102030405060[A]
[V]
36 V
48 V
53 V
75 V
0.54
0.96
1.38
1.80
2.22
60 63 66 69 72 7 5 [A]
[V]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
When reaching 30% of nominal output voltage the converter will
go into hic-up mode.
1.8 V/60 A Typical Characteristics PKB 4118GC PI
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
14
Ericsson Internal
PRODUCT SPECIFICATION 12 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 60 A resistive load.
Top trace: output voltage (1.0 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 =60 A resistive load.
Top trace: output voltage (1.0 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (100 us/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 60 A resistive load.
Trace: output voltage (20mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (15-45-15 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (200mV/div.).
Bottom trace: load current (50 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:
()()
⎟
⎠
⎞
⎜
⎝
⎛
∆
∆×+
−
∆×
∆+×
×= %
%2100
%62.0
%1008.1
11.5Radj
kΩ
Example: Increase 4% =>V
out
= 1.872 Vdc
()()
⎟
⎠
⎞
⎜
⎝
⎛×+
−
×
+×
×4
42100
462.0
41008.1
11.5
kΩ = 248 kΩ
Output Voltage Adjust Downwards, Decrease:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
×= 2
%
100
11.5Radj
kΩ
Example: Decrease 2% =>V
out
= 1.764 Vdc
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−× 2
2
100
11.5
kΩ = 245 kΩ
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
15
Ericsson Internal
PRODUCT SPECIFICATION 13 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
1.8 V/60 A Typical Characteristics
PKB 4118GC PI
Output Current Derating – Open frame
0
10
20
30
40
50
60
0 20 40 60 8 0 100 [°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
V
I
= 53 V. See Thermal Consideration section.
Output Current Derating – Base plate Thermal Resistance – Base plate
0
15
30
45
60
0 20 40 6 0 8 0 1 00 120
[
°C
]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
0.0 0.51.01.52.02.53.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
16
Ericsson Internal
PRODUCT SPECIFICATION 14 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
3.3 V/40 A Electrical Specification PKB 4110C PI
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 29 31 33 V
V
Ion
Turn-on input voltage Increasing input voltage 30 33 36 V
C
I
Internal input capacitance 1
µ
F
P
O
Output power 0 132 W
50 % of max I
O
91
max I
O
91
50 % of max I
O
, V
I
= 48 V 91
η Efficiency
max I
O
, V
I
= 48 V 91
%
P
d
Power Dissipation max I
O
13.1 16.7 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 3.8 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 0.06 W
f
s
Switching frequency 0-100 % of max I
O
250 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 40 A 3.23 3.29 3.35 V
Output adjust range See operating information 2.64 3.63 V
Output voltage tolerance band 10-100% of max I
O
3.22 3.36 V
Idling voltage I
O
= 0 A 3.22 3.36 V
Line regulation max I
O
0 5 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
0 10 mV
V
tr
Load transient
voltage deviation ±350 mV
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s,
see Note 2 50 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
6 10 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 12 15 ms
max I
O
0.1
m
s
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0 A 8 s
RC start-up time max I
O
9 ms
max I
O
0.1 ms
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0 A 8 s
I
O
Output current 0 40 A
I
lim
Current limit threshold V
O
= 3.2V, T
ref
< max T
ref
41 46 53 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.5V, see Note 3 15 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
Oi
65 130 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
4.3 V
Note 2: Output filter according to Ripple & Noise section.
Note 3: RMS current in hiccup mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
17
Ericsson Internal
PRODUCT SPECIFICATION 15 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
3.3 V/40 A Typical Characteristics PKB 4110C PI
Efficiency Power Dissipation
70
75
80
85
90
95
0 5 10 15 20 25 30 35 40 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
12
14
16
0 5 10 15 20 25 30 35 40 [A ]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25°C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Characteristics
Current Limit Characteristics
3.270
3.275
3.280
3.285
3.290
3.295
3.300
0 5 10 15 20 25 30 35 40 [A]
[V]
36 V
48 V
53 V
75 V
1.00
1.46
1.92
2.38
2.84
3.30
3.76
40 42 44 46 4 8 50 [A]
[V]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
When reaching 30% of nominal output voltage the converter will
go into hic-up mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
18
Ericsson Internal
PRODUCT SPECIFICATION 16 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
3.3 V/40 A Typical Characteristics PKB 4110C PI
Start-up Shut-down
Start-up enabled by connecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 40 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (25 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 40 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.1 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 40 A resistive load.
Trace: output voltage (20mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (10-30-10 A) at:
T
ref
=+25°C, V
I
= 53 V.
Top trace: output voltage (200mV/div.).
Bottom trace: load current (20 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:
()()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
∆×+
−
∆×
∆+
×= %
%2100
%225.1
%1003.3
11.5Radj
kΩ
Example: Increase 4% =>V
out
= 3.43 Vdc
()()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛×+
−
×
+
×4
42100
4225.1
41003.3
11.5
kΩ = 220 kΩ
Output Voltage Adjust Downwards, Decrease:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
×= 2
%
100
11.5Radj
kΩ
Example: Decrease 2% =>V
out
= 3.23 Vdc
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−× 2
2
100
11.5
kΩ = 245 kΩ
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
19
Ericsson Internal
PRODUCT SPECIFICATION 17 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
3.3 V/40 A Typical Characteristics
PKB 4110C PI
Output Current Derating – Open frame
0
5
10
15
20
25
30
35
40
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
V
I
= 53 V. See Thermal Consideration section.
Output Current Derating – Base plate Thermal Resistance – Base plate
0
10
20
30
40
0 20 4 0 6 0 80 100 120
[
°C
]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat.
Conv.
0
2
4
6
8
0.0 0.5 1.0 1.5 2.0 2.5 3.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
20
Ericsson Internal
PRODUCT SPECIFICATION 18 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
5.0 V/28 A Electrical Specification PKB 4111C PI
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 29 31 33 V
V
Ion
Turn-on input voltage Increasing input voltage 30 33 36 V
C
I
Internal input capacitance 1
µ
F
P
O
Output power 0 140 W
50 % of max I
O
92
max I
O
92
50 % of max I
O
, V
I
= 48 V 92
η Efficiency
max I
O
, V
I
= 48 V 92
%
P
d
Power Dissipation max I
O
12.5 17 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 4 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 60 mW
f
s
Switching frequency 0-100 % of max I
O
250 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 28 A 4.9 5 5.1 V
Output adjust range See operating information 4 5.5 V
Output voltage tolerance band 10-100% of max I
O
4.87 5.13 V
Idling voltage I
O
= 0 A 4.87 5.13 V
Line regulation max I
O
0 8 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
0 10 mV
V
tr
Load transient
voltage deviation ±350 mV
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s,
see Note 1 50 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
6 10 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 12 15 ms
max I
O
0.2
m
s
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0 A 8 s
RC start-up time max I
O
9 ms
max I
O
0.2 ms
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0 A 8 s
I
O
Output current 0 28 A
I
lim
Current limit threshold V
O
= 3.2V, T
ref
< max T
ref
30 35 42 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.5V, see Note 2 10 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
Oi
60 150 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
6.5 V
Note 1: Output filter according to Ripple & Noise section.
Note 2: RMS current in hiccup mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
21
Ericsson Internal
PRODUCT SPECIFICATION 19 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
5.0 V/28 A Typical Characteristics PKB 4111C PI
Efficiency Power Dissipation
70
75
80
85
90
95
0 4 8 1216202428[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
12
14
16
0 4 8 12 16 20 24 28 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25
°
C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Characteristics
Current Limit Characteristics
5.000
5.002
5.004
5.006
5.008
5.010
0 4 8 1216202428[A]
[V]
36 V
48 V
53 V
75 V
2.0
2.7
3.4
4.1
4.8
5.5
28 30 32 34 36 38 40 [A]
[V]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
When reaching 30% of nominal output voltage the converter will
go into hic-up mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
22
Ericsson Internal
PRODUCT SPECIFICATION 20 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
5.0 V/28 A Typical Characteristics PKB 4111C PI
Start-up Shut-down
Start-up enabled by connecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 28 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (10 ms/div.).
Shut-down enabled by disconnecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 28 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:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 28 A resistive load.
Trace: output voltage (20mV/div.).
Time scale: (1 µs/div.).
Output voltage response to load current step-
change (7-21-7 A) at:
T
ref
=+25°C, V
I
= 53 V.
Top trace: output voltage (200mV/div.).
Bottom trace: load current (20 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:
()()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
∆×+
−
∆×
∆+×
×= %
%2100
%225.1
%1005
11.5Radj
kΩ
Example: Increase 4% =>V
out
= 5.2 Vdc
()()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛×+
−
×
+×
×4
42100
4225.1
41005
11.5
kΩ = 404 kΩ
Output Voltage Adjust Downwards, Decrease:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
×= 2
%
100
11.5Radj
kΩ
Example: Decrease 2% =>V
out
= 4.9 Vdc
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−× 2
2
100
11.5
kΩ = 245 kΩ
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
23
Ericsson Internal
PRODUCT SPECIFICATION 21 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
5.0 V/28 A Typical Characteristics
PKB 4111C PI
Output Current Derating – Open frame
0
4
8
12
16
20
24
28
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
V
I
= 53 V. See Thermal Consideration section.
Output Current Derating – Base plate Thermal Resistance – Base plate
0
7
14
21
28
0 20 40 6 0 8 0 1 00 120 [°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
0.00.51.01.52.02.53.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel
with airflow and test conditions as per
the Thermal consideration section.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
24
Ericsson Internal
PRODUCT SPECIFICATION 22 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
12 V/12 A Electrical Specification PKB 4113C PI
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 29 31 33 V
V
Ion
Turn-on input voltage Increasing input voltage 30 33 36 V
C
I
Internal input capacitance 1
µ
F
P
O
Output power 0 144 W
50 % of max I
O
92.5
max I
O
93
50 % of max I
O
, V
I
= 48 V 93
η Efficiency
max I
O
, V
I
= 48 V 93
%
P
d
Power Dissipation max I
O
11.4 14.8 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 3.5 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 0.06 W
f
s
Switching frequency 0-100 % of max I
O
250 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 12 A 11.8 12 12.2 V
Output adjust range See operating information,
T
ref
= +25°C, V
I
= 53 V 9.6 13.2 V
Output voltage tolerance band 10-100% of max I
O
11.7 12.3 V
Idling voltage I
O
= 0 A 11.7 12.3 V
Line regulation max I
O
2 5 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
3 10 mV
V
tr
Load transient
voltage deviation ±600 mV
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s,
see Note 2 50 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
12 15 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 18 32 ms
max I
O
0.2
m
s
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0 A 5.7 s
RC start-up time max I
O
16 ms
max I
O
0.2 ms
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0 A 5.7 s
I
O
Output current 0 12 A
I
lim
Current limit threshold V
O
= 11.6V, T
ref
< max T
ref
13 16.6 20 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.5V, see Note 3 7 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
Oi
40 120 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
15.6 V
Note 2: Output filter according to Ripple & Noise section.
Note 3: RMS current in hiccup mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
25
Ericsson Internal
PRODUCT SPECIFICATION 23 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
12 V/12 A Typical Characteristics PKB 4113C PI
Efficiency Power Dissipation
70
75
80
85
90
95
024681012[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
12
14
024681012[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25
°
C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Characteristics
Current Limit Characteristics
11,94
11,95
11,96
11,97
11,98
11,99
024681012[A]
[V]
36 V
48 V
53 V
75 V
3.6
5.7
7.8
9.9
12.0
14.1
0 3 6 9 12 15 18 21 [A]
[V]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
When reaching 30% of nominal output voltage the converter will
go into hic-up mode.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
26
Ericsson Internal
PRODUCT SPECIFICATION 24 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
12 V/12 A Typical Characteristics PKB 4113C PI
Start-up Shut-down
Start-up enabled by connecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 12 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 V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 12 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (1 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 12 A resistive load.
Trace: output voltage (20mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step-
change (3-9-3 A) at:
T
ref
=+25°C, V
I
= 53 V.
Top trace: output voltage (500mV/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:
()()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
∆
∆×+
−
∆×
∆+
×= %
%2100
%225.1
%10012
11.5Radj
kΩ
Example: Increase 4% =>V
out
= 12.48 Vdc
()()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛×+
−
×
+
×4
42100
4225.1
410012
11.5
kΩ = 1164 kΩ
Output Voltage Adjust Downwards, Decrease:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
∆
×= 2
%
100
11.5Radj
kΩ
Example: Decrease 2% =>V
out
= 11.76 Vdc
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−× 2
2
100
11.5
kΩ = 245 kΩ
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
27
Ericsson Internal
PRODUCT SPECIFICATION 25 (26)
Prepared (also subject responsible if other) No.
EGUHAIL 2/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) ESKEVIN 2008-9-23 F
12 V/12 A Typical Characteristics
PKB 4113C PI
Output Current Derating – Open frame
0
2
4
6
8
10
12
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
V
I
= 53 V. See Thermal Consideration section.
Output Current Derating – Base plate Thermal Resistance – Base plate
0
3
6
9
12
0 20 40 6 0 8 0 1 00 120 [°C ]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
0.00.51.01.52.02.53.0
[
m/ s
]
[°C/W]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in wind
tunnel with airflow and test conditions as per
the Thermal consideration section.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
28
Ericsson Internal
PRODUCT SPECIFICATION 1 (6)
Prepared (also subject responsible if other) No.
MICJMAL 3/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P (Natalie Johansson) (EANDKUL) 2007-11-07 B
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
250 kHz for PKB 4111C @ 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.
PKB-C
-
+
R
C1 C2
C4
C5
C6 C3
1 2
L2
1 2
L1
1 2
Filter
components:
C1,2,3 = 1 μF
C4,5 = 2.2 nF
C6 = 100 uF
electrolytic
L1 = 590 μH
L2 = 5.6 μH
EMI with filter
Test set-up
Layout recommendation
The radiated EMI performance 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.
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 measured according to figure below.
See Design Note 022 for detailed information.
Output ripple and noise test setup
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
29
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
MICJMAL 3/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P (Natalie Johansson) (EANDKUL) 2007-11-07 B
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 Tref must be limited to
absolute max +90°C. The absolute maximum continuous
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 1V.
Remote Control (RC)
The products are fitted with a
remote control function referenced
to the primary negative input
connection (- In), with negative and
positive lo
g
ic options available. The
RC function allows 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 sink current is 1 mA. When the RC pin
is left open, the voltage generated on the RC pin is
4 — 6 V. 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 RC pin and the - In pin shall
be less than 1V. The converter 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 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 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 100 μF capacitor
across the input of the converter will ensure stable operation.
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 dynamic current
requirements, the voltage regulation at the point of load can
be improved b
y
addition of decouplin
g
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. Ceramic
capacitors will also reduce any high frequency noise at the
load.
It is equally important to use low resistance and low
inductance PCB layouts and cabling.
External decoupling capacitors will become part of the
control loop of the DC/DC converter and may affect the
stability margins. As a “rule of thumb”, 100 μF/A of output
current can be added without any additional analysis. The
ESR of the capacitors is a very important parameter. Power
Modules guarantee stable operation 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 DC/DC converters 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 converter from shutting down. At increased
output voltages the maximum power rating of the converter
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
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
30
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
MICJMAL 3/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P (Natalie Johansson) (EANDKUL) 2007-11-07 B
Operating information continued
Parallel Operation
Two converters may be paralleled for redundancy if the total
power is equal or less than PO max. It is not recommended to
parallel the converters without using external current sharing
circuits.
See Design Note 006 for detailed information.
Remote Sense
The DC/DC converters 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 converters are protected from thermal overload by an
internal over temperature shutdown circuit.
When Tref as defined in thermal consideration section
exceeds 135°C the converter will shut down. The DC/DC
converter will make continuous attempts to start up (non-
latching mode) and resume normal operation automatically
when the temperature has dropped >10°C below the
temperature threshold.
The converters with latching option will shut down the module
when Tref exceeds 135°C and remain shut down until the
module restarts by switching on/off the input voltage or
Remote control.
Over Voltage Protection (OVP)
The converters have output over voltage protection that will
shut down the converter in over voltage conditions. The
converter will make continuous attempts to start up (non-
latching mode) and resume normal operation automatically
after removal of the over voltage condition.
The converters with latching option will shut down the module
in over voltage condition and remain shut down until the
converter restarts by switching on/off the input voltage or
Remote control.
Over Current Protection (OCP)
The converters include current limiting circuitry for protection
at continuous overload.
The output voltage will decrease towards 30% of nominal
output voltage for output currents in excess of max output
current (max IO). When reaching 30% of nominal output
voltage the converter will go into hic-up mode. 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.
The converters with latching option will shut down the module
when reaching 30% of nominal output voltage and remain
shut down until the converter restarts by switching on/off the
input voltage or Remote control.
Pre-bias Start-up
The converter has a Pre-bias start up functionality. The
converter will sink current in a controlled way during start up
if a pre-bias source is present at the output terminals.
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
31
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
MICJMAL 3/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P (Natalie Johansson) (EANDKUL) 2007-11-07 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 mainly by conduction, from the pins to
the host board, and convection, which is dependant 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 or P2 ( see note 1).
The temperature at these positions should not exceed the
max values provided in the table below.
Note that the max value is the absolute maximum rating
(non destruction) and that the electrical Output data is
guaranteed up to Tref +90°C.
See Design Note 019 for further information.
Position Device Designation max value
P1 Mosfet
Tref 125º C
P2 Ind. core
Tref 125º C
P2 P1
Thermal Consideration continued
The PKB4000C series DC/DC converters can be ordered with
a heatsink (HS) option. The HS option is intended to be
mounted on a cold wall or heatsink to transfer heat awa
y
from
the converter and further improve the cooling of the converter.
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.
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. E.g. 89.5 % = 0.895
2. Find the thermal resistance (Rth) in the Thermal Resistance
graph found in the Output section for each model.
Calculate the temperature increase (ΔT).
ΔT = Rth x Pd
3. Max allowed ambient temperature is:
Max Tref - ΔT.
E.g. PKB 4110C PI at 1m/s:
1. (( ) - 1) × 132 W = 14.7 W
2. 14.7 W × 4.6°C/W = 68°C
3. 125 °C — 68°C = max ambient temperature is 57°C
The actual temperature will be dependent on several factors
such as the PCB size, number of layers and direction of
airflow.
Note 1
P2 is the limiting component (Tref) used for thermal derating for
PKB4113C. P1 is used for the rest of the modules in the PKB-C
family.
1
0.90
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
32
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
MICJMAL 3/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P (Natalie Johansson) (EANDKUL) 2007-11-07 B
Connections
Top view
Pin Designation Function
1 +In Positive input
2 RC Remote control
3 -In Negative input
4 -Out Negative output
5 -Sen Negative remote sense
6 Vadj Output voltage adjust
7 +Sen Positive remote sense
8 +Out Positive output
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
33
Ericsson Internal
PRODUCT SPEC. MECHANICAL 1 (4)
Prepared (also subject responsible if other) No.
EPANHON 4/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D [Julia You] See §1 2008-05-23 E
Mechanical Information - Surface Mount Version
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
34
Ericsson Internal
PRODUCT SPEC. MECHANICAL 2 (4)
Prepared (also subject responsible if other) No.
EPANHON 4/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D [Julia You] See §1 2008-05-23 E
Mechanical Information - Through Hole Mount — Open Frame Version
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
35
Ericsson Internal
PRODUCT SPEC. MECHANICAL 3 (4)
Prepared (also subject responsible if other) No.
EPANHON 4/1301-BMR 655 Uen
Approved Checked Date Rev Reference
SEC/D [Julia You] See §1 2008-05-23 E
Mechanical Information — Through Hole Mount — Base Plate Version
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
36
Ericsson Internal
PROD. SPECIFICATION MECHANICAL 1 (4)
Prepared (also subject responsible if other) No.
MICJAN 5/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P [Natalie Johansson] See §1 2007-05-29 B
Soldering Information - Surface Mounting
The surface mount version of the product is intended for
convection or vapor phase reflow SnPb and Pb-free
processes. To achieve a good and reliable soldering result,
make sure to follow the recommendations from the solder
paste supplier, to use state-of-the-art reflow equipment and
reflow profiling techniques as well as the following guidelines.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board. The cleanin
g
residues ma
y
affect
long time reliability and isolation voltage.
Minimum Pin Temperature Recommendations
Pin number 4 is chosen as reference location for the minimum
pin temperature recommendations since this will likely be the
coolest solder joint during the reflow process.
Pin 4 for measurement of minimum
solder joint temperature, TPIN
Pin 2 for measurement of maximum
peak product reflow temperature, TP
SnPb solder processes
For SnPb solder processes, a pin temperature (TPIN) in excess
of the solder melting temperature, (TL, +183°C for Sn63/Pb37)
for more than 30 seconds, and a peak temperature of +210°C
is recommended to ensure a reliable solder joint.
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 Sn/Ag/Cu 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.
Peak Product Temperature Requirements
Pin number 2 is chosen as reference location for the
maximum (peak) allowed product temperature (TP) since this
will likel
y
be the warmest part of the product durin
g
the reflow
process.
To avoid dama
g
e or performance de
g
radation of the product,
the reflow profile should be optimized to avoid excessive
heatin
g
. A sufficientl
y
extended preheat time is recommended
to ensure an even temperature across the host PCB, for both
small and large devices. To reduce the risk of excessive
heating is also recommended to reduce the time in the reflow
zone as much as possible.
SnPb solder processes
For SnPb solder processes, the product is qualified for MSL 1
according to IPC/JEDEC standard J-STD-020C.
During reflow, TP must not exceed +225°C at any time.
Lead-free (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, TP must not exceed +260°C at any time.
25 °C Time
Temperature
Ramp-down
(cooling)
Ramp-up
Reflow
Preheat
Time 25 °C to pea
k
TP
TL
Reflow process specifications Sn/Pb eutectic Pb-free
Average ramp-up rate 3°C/s max 3°C/s max
Solder melting
temperature (typical)
TL +183°C +221°C
Minimum time above TL 30 s 30 s
Minimum pin temperature TPIN +210°C +235°C
Peak product temperature TP +225°C +260°C
Average ramp-down rate 6°C/s max 6°C/s max
Time 25°C to peak 6 minutes max 8 minutes max
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
37
Ericsson Internal
PROD. SPECIFICATION MECHANICAL 2 (4)
Prepared (also subject responsible if other) No.
MICJAN 5/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P [Natalie Johansson] See §1 2007-05-29 B
Soldering Information — Through Hole Mounting
The through hole mount version of the product is intended for
manual or wave soldering. When wave soldering is used, the
temperature on the pins is specified to maximum 270°C for
maximum 10 seconds.
A maximum preheat rate of 4°C/s and a temperature of max
+150°C is suggested. When 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 inside the product or between the
product and the host board. The cleanin
g
residues ma
y
affect
long time reliability and isolation voltage.
Delivery Package Information, Surface Mount
Version
The surface mount versions of the products are delivered in
antistatic injection molded trays (Jedec design guide 4.10D
standard.
Tray Specifications
Material PPE, Antistatic
Surface resistance 105 < Ohm/square < 1012
Bakability The trays can be baked at maximum
125°C for 48 hours
Tray capacity 20 products/tray
Tray thickness 14.4 mm [0.567 inch]
Box capacity 100 products (5 full trays/box)
Tray weight 110 g empty, 530 g full tray
Dry Pack Information
The surface mount versions of the products are delivered in
trays These inner shipment containers are dry packed 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 storage 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.
Delivery Package Information, Through Hole
versions
The products are delivered in antistatic trays.
Tray Specifications
Material PE foam, antistatic.
Surface resistance 105 < Ohm/square < 1012
Bakability The trays are not bakable
Tray capacity 25 products/tray
Tray thickness Open
Frame version 18 mm [0.71 inch]
Tray thickness Base
Plate version 22 mm [0.87 inch]
Box capacity Open
Frame version 100 products (4 full trays/box)
Box capacity Base Plate
version 50 products (2 full trays/box)
Tray weight Open Frame
version 30 g empty, 550 g full tray
Tray weight Base Plate
version 40 g empty, 1040 g full tray
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
38
Ericsson Internal
PROD. SPECIFICATION MECHANICAL 3 (4)
Prepared (also subject responsible if other) No.
MICJAN 5/1301-BMR 655 Uen
Approved Checked Date Rev Reference
MPM/BK/P [Natalie Johansson] See §1 2007-05-29 B
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 perpendicular
direction
Note 1: Only for products intended for reflow soldering (surface mount products)
Note 2: Only for products intended for wave soldering (plated through hole products)
E
PKB4000C PI
DC/DC converters, Input 36-75 V, Output 60A/144W
EN/LZT 146 377 R3G Oct 2008
© Ericsson Power Modules AB
Technical Specification
39
