PKM2515EPILA [ERICSSON]
DC-DC Regulated Power Supply Module, 1 Output, 50W, Hybrid, ROHS COMPLIANT, PACKAGE-8;型号: | PKM2515EPILA |
厂家: | ERICSSON |
描述: | DC-DC Regulated Power Supply Module, 1 Output, 50W, Hybrid, ROHS COMPLIANT, PACKAGE-8 |
文件: | 总25页 (文件大小:1408K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PKM 2000E Series
18-36 Vdc DC/DC converter
Output up to 20 A/50 W
Contents
Product Programꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 2
Quality Statement ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 2
Limitation of Liability ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 2
Mechanical Informationꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 3-4
Absolute Maximum Ratings ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 5
Input ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 5
Safety Specification ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 6
Product Qualification Specificationꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 7
PKM 2510E PI Data ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 8
PKM 2511E PI Data ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 11
PKM 2513E PI Data ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 14
PKM 2515E PI Data ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 17
EMC Specificationꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 20
Operating Information ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 21
Thermal Consideration ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 23
Soldering Information ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 24
Delivery Package Information ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 24
Compatibility with RoHS requirements ꢀ ꢀ ꢀ ꢀ 24
Reliability ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 24
Sales Offices and Contact Information ꢀ ꢀ ꢀ ꢀ 25
Key Features
•
Industry standard Quarter-brick
57ꢀ9 x 36ꢀ8 x 8ꢀ5 mm (2ꢀ28 x 1ꢀ45 x 0ꢀ33 in)
RoHS compliant
•
•
•
High efficiency, typꢀ 89 % at 3ꢀ3 Vout half load
1500 Vdc input to output isolation, meets isolation
requirements equivalent to basic insulation according
to IEC/EN/UL 60950
•
More than 7ꢀ0 million hours predicted MTBF at +40 ºC
ambient temperature
The PKM 2000E series of high efficiency DC/DC convert-
ers are designed to provide high quality on-board power
solutions in distributed power architectures used in
Internetworking equipment in wireless and wired com-
munications applicationsꢀ The PKM 2000E series has
industry standard quarter brick footprint and pin-out and
is only 8ꢀ5 mm (0ꢀ33 in) highꢀ This makes it extremely well
suited for narrow board pitch applications with board
spacing down to 15 mm (0ꢀ6 in)ꢀ The PKM 2000E series
uses patented synchronous rectification technology and
achieves an efficiency up to 90% at full loadꢀ Ericsson’s
PKM 2000E series addresses both the industrial and the
emerging telecom market for applications in the multi-
service network by specifying the input voltage range in
accordance with ETSI specificationsꢀ Included as standard
features are output over-voltage protection, input under-
voltage protection, over temperature protection, soft-start,
output short circuit protection, remote sense, remote con-
trol, and output voltage adjust functionꢀ These converters
are designed to meet high reliability requirements and are
manufactured in highly automated manufacturing lines and
meet world-class quality levelsꢀ
Ericsson Power Modules is an ISO 9001/14001 certified
supplierꢀ
Datasheet
E
Product Program
VO/IO max
Output 1
VI
PO max
Ordering Noꢀ
Comment
24
24
3ꢀ3 V/15 A
50W
50W
50W
50W
PKM 2510E PI
PKM 2511E PI
PKM 2513E PI
PKM 2515E PI
Example
5ꢀ0 V/10 A
12 V/4ꢀ2 A
15 V/3ꢀ3 A
24
24
Option
Suffix
Positive Remote Control logic
Heatsink
P
PKM 2510E PIP
PKM 210E PIHS
PKM 2510E PILA
HS
LA
Lead length 3ꢀ69 mm (0ꢀ145 in)
For more information about the complete product program, please refer to our
website: wwwꢀericssonꢀcom/powermodules
Note: As an example a positive logic, heatsink, short pin product would be
PKM 2510E PIPHSLA
Quality Statement
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)ꢀ
The PKM 2000E DC/DC converters 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
strategyꢀ Infant mortality or early failures in the products are
screened out and they are subjected to an ATE-based final
testꢀ Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged work
force, contribute to the high quality of our productsꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢀ
Mechanical Information
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢁ
Mechanical Information HS-Option
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢂ
Absolute Maximum Ratings
Characteristics
min
-40
typ
max
+110
+125
+40
Unit
˚C
T
T
Maximum Operating Baseplate Temperature (see Thermal Consideration section)
Storage temperature
C
S
-55
˚C
V
V
V
Input voltage
-0ꢀ5
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
I
Isolation voltage (input to output test voltage)
Input voltage transient (Tp 100 ms)
Negative logic (referenced to -In)
Positive logic (referenced to -In)
Maximum input
1500
100
ISO
tr
+18
V
V
RC
adj
6
-0ꢀ5
2xVoi
Stress in excess of Absolute Maximum Ratings may cause permanent damageꢀ 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 Characteristicsꢀ
If exposed to stress above these limits, function and performance may degrade in an
unspecified mannerꢀ
T
Pcb
<T
unless otherwise specified
Pcb max
Input
Characteristics
Conditions
min
typ
max
Unit
Vdc
Vdc
Vdc
µF
V
Input voltage range
Turn-off input voltage
18
36
I
V
V
Ramping from higher voltage
Ramping from lower voltage
15ꢀ5
17
Ioff
Ion
Turn-on input voltage
C
Input capacitance
3ꢀ3
1ꢀ3
0ꢀ1
I
P
P
Input idling power
I = 0, V = 27 V
W
Ii
o
I
Input standby power (turned off with RC)
V = 27 V, RC activated
W
RC
I
Fundamental Circuit Diagram
1SJNBSZ
4FDPOEBSZ
$IPLF
1
3FTJTUPS
$BQBDJUPS
8
4
$POUSPM
2
$POUSPM
3
*TPMBUFE
'FFECBDL
6
7
5
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢃ
Safety Specification
General informationꢀ
Isolated DC/DC convertersꢀ
Ericsson Power Modules DC/DC converters and DC/DC regulators
are designed in accordance with safety standards
IEC/EN/UL 60 950, Safety of Information Technology Equipment.
It is recommended that a fast blow fuse with a rating
twice the maximum input current per selected product
be used at the input of each DC/DC converterꢀ If an input filter is
used in the circuit the fuse should be placed in front of the input
filterꢀ
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:
IEC/EN/UL60950 contains requirements to prevent injury or
damage due to the following hazards:
• Electrical shock
• Energy hazards
• Fire
• Isolate the faulty DC/DC converter from the input power source
so as not to affect the operation of other parts of the systemꢀ
• Mechanical and heat hazards
• Radiation hazards
• Chemical hazards
• Protect the distribution wiring from excessive current and power
loss thus preventing hazardous overheatingꢀ
The galvanic isolation is verified in an electric strength testꢀ The test
voltage (VISO) between input and output is 1500 Vdc or 2250 Vdc for
60 seconds (refer to product specification)ꢀ Leakage current is less
than 1µA at nominal input voltageꢀ
On-board DC-DC converters are defined as component power
suppliesꢀ As components they cannot fully comply with the
provisions of any Safety requirements without “Conditions of
Acceptability”ꢀ 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 productꢀ
24 V dc systemsꢀ
The input voltage to the DC/DC converter is SELV (Safety Extra Low
Voltage) and the output remains SELV under normal and abnormal
operating conditionsꢀ
Component power supplies for general use should comply with
the requirements in IEC60950, EN60950 and UL60950 “Safety of
information technology equipment”ꢀ
48 and 60 V dc systemsꢀ
If the input voltage to Ericsson Power Modules DC/DC converter
is 75 V dc or less, then the output remains SELV (Safety Extra Low
Voltage) under normal and abnormal operating conditionsꢀ
There are other more product related standards, eꢀgꢀ
IEC61204-7 “Safety standard for power supplies",
IEEE802ꢀ3af “Ethernet LAN/MAN Data terminal equipment
power”, and ETS300132-2 “Power supply interface at the input to
telecommunications equipment; part 2: DC”,
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 V dcꢀ
but all of these standards are based on IEC/EN/UL60950 with
regards to safetyꢀ
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/UL 60 950ꢀ
Ericsson Power Modules DC/DC converters and DC/DC regulators
are UL 60 950 recognized and certified in accordance with EN 60
950ꢀ
The flammability rating for all construction parts of the products
meets UL 94V-0ꢀ
Non-isolated DC/DC regulatorsꢀ
The input voltage to the DC/DC regulator is SELV (Safety Extra Low
Voltage) and the output remains SELV under normal and abnormal
operating conditionsꢀ
The products should be installed in the end-use equipment, in
accordance with the requirements of the ultimate applicationꢀ
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
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 regulatorꢀ
IEC/EN/UL 60 950ꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢄ
Product Qualification Specification
Characteristics
Frequency
Spectral density
Duration
10 ꢀꢀꢀ 500 Hz
0ꢀ07 g /Hz
10 min each direction
2
Random Vibration
IEC 68-2-64 Fh
Frequency
Amplitude
10 ꢀꢀꢀ 500 Hz
0ꢀ75 mm
Sinusoidal
Vibration
IEC 68-2-6 F
c
Acceleration
Number of cycles
10 g
10 in each axis
Peak acceleration
Duration
Pulse shape
100 g
6 ms
half sine
Mechanical shock
(half sinus)
IEC 68-2-27 E
a
Temperature
Number of cycles
-40 ... +100 ˚C
300
Temperature cycling
Heat/Humidity
IEC 68-2-14 N
a
Temperature
Humidity
Duration
+85 ˚C
85 % RH
1000 hours
IEC 68-2-3 C
a
Temperature, solder
Duration
260 ˚C
10 ꢀꢀꢀ13 s
Solder heat stability
IEC 68-2-20 Tb 1A
Water
+55 ±5 ˚C
+35 ±5 ˚C
+35 ±5 ˚C
with rubbing
IEC 68-2-45 XA
Method 2
Isopropyl alcohol
Glycol ether
Method
Resistance to cleaning agents
Storage test
Temperature
Duration
125 ˚C
1000 h
IEC 68-2-2 Ba
IEC 68-2-1 Ad
Temperature, TA
Duration
-45 ˚C
2 h
Cold (in operation)
Operational life test
Duration
1000 h
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢅ
PKM ꢀꢃ10E PI Output
TPcb = -40ꢀꢀꢀ+90 ºC and VI = 18ꢀꢀꢀ36V, sense pins connected to output pins unless otherwise specifiedꢀ
Output
Unit
V
Characteristics
Conditions
min
3ꢀ23
typ
3ꢀ3
max
3ꢀ37
Output voltage initial setting
and accuracy
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
V
Oi
Output adjust range
2ꢀ97
3ꢀ2
3ꢀ63
3ꢀ4
3ꢀ4
5
V
Output voltage tolerance band
Idling voltage
I
= (0ꢀ1ꢀꢀꢀ1ꢀ0) x IOmax
= 0
V
O
O
I
3ꢀ2
V
V
V
O
tr
Line regulation
IOmax
mV
mV
Load regulation
IO = (0ꢀ01ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
5
Load transient
voltage deviation
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
±300
100
5
mV
µs
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
t
t
t
Load transient recovery time
Ramp-up time
tr
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
(0ꢀ1ꢀꢀꢀ0ꢀ9) × VOnom
10
ms
ms
r
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
VI connection to 0ꢀ9 x VOnom
Start-up time
7ꢀ5
15
15
s
I
Output current
0
A
O
POmax Max output power
At V = V nom
50
W
A
O
O
I
I
Current limit threshold
Short circuit current
Output ripple & noise
TPcb < TPcbmax
20
27
25
lim
TPcb = 25 °C, VO < 0ꢀ5V
A
sc
VOac
SVR
OVP
See ripple and noise, IOmax, VOnom,
50
mV
dB
V
p-p
TPcb = 25 °C, f = 100 Hz sinewave , 1 Vpp,
Supply voltage rejection (ac)
Over voltage protection
70
V
= 27 V
I
V = 27 V IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax
I
3ꢀ9
5ꢀ0
Miscellaneous
Characteristics
Conditions
min
85
typ
87
max
Unit
%
η
η
P
Efficiency - 100% load
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax / 2, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
Efficiency - 50% load
Power Dissipation
89
%
7ꢀ3
180
W
d
f
Switching frequency
kHz
s
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢆ
PKM ꢀꢃ10E PI Typical Characteristics
Efficiency
Output Current Derating
<ꢋ>
ꢃꢅ
[A]
15
ꢃꢀ
ꢇꢇ
3.0 m/s (600 lfm)
10
2.5 m/s (500 lfm)
2.0 m/s (400 lfm)
1.5 m/s (300 lfm)
1.0 m/s (200 lfm)
ꢄꢇꢉ7
ꢅꢈꢉ7
ꢅꢊꢉ7
ꢇꢂ
5
Nat. Conv.
ꢁꢂꢉ7
ꢇꢈ
0
ꢇꢅ
0
20
40
60
80
100 [°C]
<">
ꢄꢆ
ꢀ
ꢁ
ꢂ
ꢃ
ꢄꢅ
Available load current vsꢀ ambient air temperature and airflow
at Vin=27 Vꢀ DC/DC converter mounted vertically with airflow
and test conditions as per the Thermal consideration sectionꢀ
Efficiency vsꢀ load current and input voltage at TPcb=+25 °C
Thermal resistance
Power Dissipation
[W]
8
[°C/W]
10
7
6
5
4
3
2
1
0
8
6
4
2
0
18 V
24 V
27 V
36 V
[A]
15
0
3
6
9
12
[m/s]
3.0
0.0
0.5
1.0
1.5
2.0
2.5
Thermal resistance vsꢀ airspeed measured at the converterꢀ
Tested in windtunnel with airflow and test conditions as
per the Thermal consideration sectionꢀ
Dissipated power vsꢀ load current and input voltage at
TPcb=+25 °C
Output Characteristic
Heatsink (HS) option
[V]
3.40
The PKM2000E series DC/DC converters can be
ordered with a heatsink (HS) optionꢀ The heatsink
option have approximately 5 °C improved derating
compared with the PKM2000E without heatsinkꢀ
The HS option is intended to be mounted on a cold
wall to transfer heat away from the converterꢀ
3.35
3.30
3.25
3.20
[A]
15
0
3
6
9
12
Output voltage vsꢀ load current at TPcb=+25 °C, Vin=27 Vꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢇ
PKM ꢀꢃ10E PI Typical Characteristics
Start-Up
Turn-Off
Turn-off at Io=15A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Turn-off enabled by disconnecting Vinꢀ Top
trace: output voltage (1 V/divꢀ)ꢀ Bottom trace: input
voltage (20 V/divꢀ)ꢀ Time scale: 10 ms/divꢀ
Start-up at Io=15A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Start enabled by connecting Vinꢀ Top trace:
input voltage (10 V/divꢀ)ꢀ Bottom trace: output voltage
(1 V/divꢀ)ꢀ Time scale: 5 ms/divꢀ
Transient
Output Ripple
Output voltage ripple (50mV/divꢀ) at TPcb=+25 °C, Vin=27 V,
Io=15A resistive load with C=10 µF tantalum and 0ꢀ1 µF
ceramic capacitorsꢀ Band width=20MHzꢀ Time scale: 2µs / divꢀ
Output voltage response to load current step-change
(3ꢀ75-11ꢀ25-3ꢀ75 A) at TPcb=+25 °C, Vin=27 Vꢀ Top
trace: output voltage (200mV/divꢀ)ꢀ Bottom trace:
load current (5 A/divꢀ) Time scale: 0ꢀ1 ms/divꢀ
Output Voltage Adjust
Output Voltage Adjust
<L0IN>
ꢀꢁꢁꢁꢁꢁ
The resistor value for an adjusted output voltage is
calculated by using the following equations:
ꢀꢁꢁꢁꢁ
ꢀꢁꢁꢁ
ꢀꢁꢁ
ꢀꢁ
Output Voltage Adjust Upwards, Increase:
Radj= 5ꢀ11 [3ꢀ3(100+Δ%)/1ꢀ225Δ%- (100+2Δ%)/Δ%]
kOhm
%FDSFBTF
*ODSFBTF
Output Voltage Adjust Downwards, Decrease:
Radj= 5ꢀ11 [(100/Δ%-2)] kOhm
Eg Increase 4% =>Vout = 3ꢀ43 Vdc
5ꢀ11 [3ꢀ3(100+4)/(1ꢀ225x4)-(100+2x4)/4=219ꢀ9 kOhm
ꢀ
<ꢆ>
ꢀꢂ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢀꢁ
Eg Decrease 2% =>Vout = 3ꢀ23 Vdc
5ꢀ11 x(100/2-2)=245ꢀ3 kOhm
Output voltage adjust resistor value vsꢀ
percentage change in output voltageꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
10
PKM ꢀꢃ11E PI Output
TPcb = -40ꢀꢀꢀ+90 ºC and VI = 18ꢀꢀꢀ36V, sense pins connected to output pins unless otherwise specifiedꢀ
Output
Unit
V
Characteristics
Conditions
min
4ꢀ89
typ
5ꢀ0
max
5ꢀ11
Output voltage initial setting
and accuracy
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
V
Oi
Output adjust range
4ꢀ5
5ꢀ5
5ꢀ15
5ꢀ15
5
V
Output voltage tolerance band
Idling voltage
I
= (0ꢀ1ꢀꢀꢀ1ꢀ0) x IOmax
= 0
4ꢀ85
4ꢀ85
V
O
O
I
V
V
V
O
tr
Line regulation
IOmax
mV
mV
Load regulation
IO = (0ꢀ01ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
5
Load transient
voltage deviation
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
±250
100
5
mV
µs
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
t
t
t
Load transient recovery time
Ramp-up time
tr
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
(0ꢀ1ꢀꢀꢀ0ꢀ9) × VOnom
10
ms
ms
r
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
VI connection to 0ꢀ9 x VOnom
Start-up time
7ꢀ5
15
10
s
I
Output current
0
A
O
POmax Max output power
At V = V nom
50
W
A
O
O
I
I
Current limit threshold
Short circuit current
Output ripple & noise
TPcb < TPcbmax
15
25
40
lim
TPcb = 25 °C, VO < 0ꢀ5V
A
sc
VOac
SVR
OVP
See ripple and noise, IOmax, VOnom,
60
mV
dB
V
p-p
TPcb = 25 °C, f = 100 Hz sinewave , 1 Vpp,
Supply voltage rejection (ac)
Over voltage protection
67
V
= 27 V
I
V = 27 V IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax
I
5ꢀ6
7ꢀ6
Miscellaneous
Characteristics
Conditions
min
85
typ
87
max
Unit
%
η
η
P
Efficiency - 100% load
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax / 2, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
Efficiency - 50% load
Power Dissipation
86ꢀ5
7ꢀ5
%
W
d
f
Switching frequency
180
kHz
s
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
11
PKM ꢀꢃ11E PI Typical Characteristics
Efficiency
Output Current Derating
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Available load current vsꢀ ambient air temperature and airflow
at Vin=27 Vꢀ DC/DC converter mounted vertically with airflow
and test conditions as per the Thermal consideration sectionꢀ
Efficiency vsꢀ load current and input voltage at TPcb=+25 °C
Thermal resistance
Power Dissipation
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Thermal resistance vsꢀ airspeed measured at the converterꢀ
Tested in windtunnel with airflow and test conditions as
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Dissipated power vsꢀ load current and input voltage at
TPcb=+25 °C
Output Characteristic
Heatsink (HS) option
<7>
ꢉꢆꢀꢅꢀ
The PKM2000E series DC/DC converters can be
ordered with a heatsink (HS) optionꢀ The heatsink
option have approximately 5 °C improved derating
compared with the PKM2000E without heatsinkꢀ
The HS option is intended to be mounted on a cold
wall to transfer heat away from the converterꢀ
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Output voltage vsꢀ load current at TPcb=+25 °C, Vin=27 Vꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢀ
PKM ꢀꢃ11E PI Typical Characteristics
Start-Up
Turn-Off
Turn-off at Io=10A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Turn-off enabled by disconnecting Vinꢀ Top
trace: output voltage (10 V/divꢀ)ꢀ Bottom trace: input
voltage (2 V/divꢀ)ꢀ Time scale: 10 ms/divꢀ
Start-up at Io=10A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Start enabled by connecting Vinꢀ Top trace:
input voltage (5 V/divꢀ)ꢀ Bottom trace: output voltage
(2 V/divꢀ)ꢀ Time scale: 5 ms/divꢀ
Transient
Output Ripple
Output voltage ripple (50mV/divꢀ) at TPcb=+25 °C, Vin=27 V,
Io=10A resistive load with C=10 µF tantalum and 0ꢀ1 µF
ceramic capacitorsꢀ Band width=20MHzꢀ Time scale: 2µs / divꢀ
Output voltage response to load current step-change
(2ꢀ5-7ꢀ5-2ꢀ5 A) at TPcb=+25 °C, Vin=27 Vꢀ Top trace:
output voltage (200mV/divꢀ)ꢀ Bottom trace:
load current (2ꢀ5 A/divꢀ) Time scale: 0ꢀ1 ms/divꢀ
Output Voltage Adjust
Output Voltage Adjust
<L0IN>
ꢀꢁꢁꢁꢁꢁ
The resistor value for an adjusted output voltage is
calculated by using the following equations:
%FDSFBTF
*ODSFBTF
ꢀꢁꢁꢁꢁ
ꢀꢁꢁꢁ
ꢀꢁꢁ
ꢀꢁ
Output Voltage Adjust Upwards, Increase:
Radj= 5ꢀ11 [5ꢀ0(100+Δ%)/1ꢀ225Δ%- (100+2Δ%)/Δ%]
kOhm
Output Voltage Adjust Downwards, Decrease:
Radj= 5ꢀ11 [(100/Δ%-2)] kOhm
Eg Increase 4% =>Vout = 5ꢀ2 Vdc
5ꢀ11 [5(100+4)/(1ꢀ225x4)-(100+2x4)/4=404ꢀ3 kOhm
ꢀ
<ꢆ>
ꢀꢂ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢀꢁ
Eg Decrease 2% =>Vout = 4ꢀ9 Vdc
5ꢀ11 x(100/2-2)=245ꢀ3 kOhm
Output voltage adjust resistor value vsꢀ
percentage change in output voltageꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢁ
PKM ꢀꢃ1ꢁE PI Output
TPcb = -40ꢀꢀꢀ+90 ºC and VI = 18ꢀꢀꢀ36V, sense pins connected to output pins unless otherwise specifiedꢀ
Output
Unit
V
Characteristics
Conditions
min
11ꢀ8
typ
max
12ꢀ2
Output voltage initial setting
and accuracy
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
12ꢀ0
V
Oi
Output adjust range
10ꢀ8
13ꢀ2
12ꢀ26
12ꢀ26
10
V
Output voltage tolerance band
Idling voltage
I
= (0ꢀ1ꢀꢀꢀ1ꢀ0) x IOmax
= 0
11ꢀ74
11ꢀ74
V
O
O
I
V
V
V
O
tr
Line regulation
IOmax
mV
mV
Load regulation
IO = (0ꢀ01ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
10
Load transient
voltage deviation
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
±300
100
5
mV
µs
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
t
t
t
Load transient recovery time
Ramp-up time
tr
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
(0ꢀ1ꢀꢀꢀ0ꢀ9) × VOnom
10
ms
ms
r
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
VI connection to 0ꢀ9 x VOnom
Start-up time
7ꢀ5
15
s
I
Output current
0
4ꢀ2
A
O
POmax Max output power
At V = V nom
50
W
A
O
O
I
I
Current limit threshold
Short circuit current
Output ripple & noise
TPcb < TPcbmax
6ꢀ0
9
lim
TPcb = 25 °C, VO < 0ꢀ5V
A
sc
VOac
SVR
OVP
See ripple and noise, IOmax, VOnom,
80
150
16
mV
dB
V
p-p
TPcb = 25 °C, f = 100 Hz sinewave , 1 Vpp,
Supply voltage rejection (ac)
Over voltage protection
65
V
= 27 V
I
V = 27 V IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax
I
14
Miscellaneous
Characteristics
Conditions
min
86
typ
87ꢀ5
87
max
Unit
%
η
η
P
Efficiency - 100% load
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax / 2, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
Efficiency - 50% load
Power Dissipation
%
7ꢀ0
W
d
f
Switching frequency
200
kHz
s
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢂ
PKM ꢀꢃ1ꢁE PI Typical Characteristics
Efficiency
Output Current Derating
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Available load current vsꢀ ambient air temperature and airflow
at Vin=27 Vꢀ DC/DC converter mounted vertically with airflow
and test conditions as per the Thermal consideration sectionꢀ
Efficiency vsꢀ load current and input voltage at TPcb=+25 °C
Thermal resistance
Power Dissipation
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Thermal resistance vsꢀ airspeed measured at the converterꢀ
Tested in windtunnel with airflow and test conditions as
per the Thermal consideration sectionꢀ
Dissipated power vsꢀ load current and input voltage at
TPcb=+25 °C
Output Characteristic
Heatsink (HS) option
<7>
ꢁꢂꢆꢂꢀ
The PKM2000E series DC/DC converters can be
ordered with a heatsink (HS) optionꢀ The heatsink
option have approximately 5 °C improved derating
compared with the PKM2000E without heatsinkꢀ
The HS option is intended to be mounted on a cold
wall to transfer heat away from the converterꢀ
ꢁꢂꢆꢁꢂ
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Output voltage vsꢀ load current at TPcb=+25 °C, Vin=27 Vꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢃ
PKM ꢀꢃ1ꢁE PI Typical Characteristics
Start-Up
Turn-Off
Turn-off at Io=4ꢀ2 A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Turn-off enabled by disconnecting Vinꢀ Top
trace: output voltage (10 V/divꢀ)ꢀ Bottom trace: input
voltage (5 V/divꢀ)ꢀ Time scale: 10 ms/divꢀ
Start-up at Io=4ꢀ2 A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Start enabled by connecting Vinꢀ Top trace:
input voltage (5 V/divꢀ)ꢀ Bottom trace: output voltage
(5 V/divꢀ)ꢀ Time scale: 5 ms/divꢀ
Transient
Output Ripple
Output voltage ripple (50mV/divꢀ) at TPcb=+25 °C, Vin=27 V,
Io=4ꢀ2 A resistive load with C=10 µF tantalum and 0ꢀ1 µF
ceramic capacitorsꢀ Band width=20MHzꢀ Time scale: 2µs / divꢀ
Output voltage response to load current step-change
(1ꢀ05-3ꢀ15-1ꢀ05A) at TPcb=+25 °C, Vin=27 Vꢀ Top
trace: output voltage (200mV/divꢀ)ꢀ Bottom trace:
load current (1ꢀ0 A/divꢀ) Time scale: 0ꢀ1 ms/divꢀ
Output Voltage Adjust
Output Voltage Adjust
<L0IN>
ꢀꢁꢁꢁꢁꢁ
The resistor value for an adjusted output voltage is
calculated by using the following equations:
%FDSFBTF
*ODSFBTF
ꢀꢁꢁꢁꢁ
ꢀꢁꢁꢁ
ꢀꢁꢁ
ꢀꢁ
Output Voltage Adjust Upwards, Increase:
Radj= 5ꢀ11 [5ꢀ0(100+Δ%)/1ꢀ225Δ%- (100+2Δ%)/Δ%]
kOhm
Output Voltage Adjust Downwards, Decrease:
Radj= 5ꢀ11 [(100/Δ%-2)] kOhm
Eg Increase 4% =>Vout = 12ꢀ48 Vdc
5ꢀ11 [12(100+4)/(1ꢀ225x4)-(100+2x4)/4]=1163ꢀ5 kOhm
ꢀ
<ꢆ
ꢀꢂ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢀꢁ
Eg Decrease 2% =>Vout = 11ꢀ76 Vdc
5ꢀ11 x(100/2-2)=245ꢀ3 kOhm
Output voltage adjust resistor value vsꢀ
percentage change in output voltageꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢄ
PKM ꢀꢃ1ꢃE PI Output
TPcb = -40ꢀꢀꢀ+90 ºC and VI = 18ꢀꢀꢀ36V, sense pins connected to output pins unless otherwise specifiedꢀ
Output
Unit
V
Characteristics
Conditions
min
typ
max
Output voltage initial setting
and accuracy
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
14ꢀ75
15ꢀ0
15ꢀ29
V
Oi
Output adjust range
13ꢀ5
16ꢀ5
15ꢀ30
15ꢀ30
10
V
Output voltage tolerance band
Idling voltage
I
= (0ꢀ1ꢀꢀꢀ1ꢀ0) x IOmax
= 0
14ꢀ70
14ꢀ70
V
O
O
I
V
V
V
O
tr
Line regulation
IOmax
mV
mV
Load regulation
IO = (0ꢀ01ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
10
Load transient
voltage deviation
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
±250
150
5
mV
µs
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V,
load step = 0ꢀ5 × IOmax
t
t
t
Load transient recovery time
Ramp-up time
tr
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
(0ꢀ1ꢀꢀꢀ0ꢀ9) × VOnom
10
ms
ms
r
IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax, VI = 27 V
VI connection to 0ꢀ9 x VOnom
Start-up time
7ꢀ5
15
s
I
Output current
0
3ꢀ33
A
O
POmax Max output power
At V = V nom
50
W
A
O
O
I
I
Current limit threshold
Short circuit current
Output ripple & noise
TPcb < TPcbmax
4ꢀ7
6ꢀ8
95
lim
TPcb = 25 °C, VO < 0ꢀ5V
A
sc
VOac
SVR
OVP
See ripple and noise, IOmax, VOnom,
150
mV
dB
V
p-p
TPcb = 25 °C, f = 100 Hz sinewave , 1 Vpp,
Supply voltage rejection (ac)
Over voltage protection
50
V
= 27 V
I
V = 27 V IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) × IOmax
I
18ꢀ5
22ꢀ5
Miscellaneous
Characteristics
Conditions
min
86
typ
88
max
Unit
%
η
η
P
Efficiency - 100% load
IOmax, VI = 27 V, TPcb = 25 ˚C
IOmax / 2, VI = 27 V, TPcb = 25 ˚C
IOmax, VI = 27 V, TPcb = 25 ˚C
Efficiency - 50% load
Power Dissipation
88
%
7ꢀ0
230
W
d
f
Switching frequency
kHz
s
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢅ
PKM ꢀꢃ1ꢃE PI Typical Characteristics
Efficiency
Output Current Derating
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Available load current vsꢀ ambient air temperature and airflow
at Vin=27 Vꢀ DC/DC converter mounted vertically with airflow
and test conditions as per the Thermal consideration sectionꢀ
Efficiency vsꢀ load current and input voltage at TPcb=+25 °C
Thermal resistance
Power Dissipation
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ꢄꢁꢂ
Thermal resistance vsꢀ airspeed measured at the converterꢀ
Tested in windtunnel with airflow and test conditions as
per the Thermal consideration sectionꢀ
Dissipated power vsꢀ load current and input voltage at
TPcb=+25 °C
Output Characteristic
Heatsink (HS) option
<7>
ꢁꢈꢅꢆ
The PKM2000E series DC/DC converters can be
ordered with a heatsink (HS) optionꢀ The heatsink
option have approximately 5 °C improved derating
compared with the PKM2000E without heatsinkꢀ
The HS option is intended to be mounted on a cold
wall to transfer heat away from the converterꢀ
ꢁꢈꢅꢄ
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Output voltage vsꢀ load current at TPcb=+25 °C, Vin=27 Vꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢆ
PKM ꢀꢃ1ꢃE PI Typical Characteristics
Start-Up
Turn-Off
Turn-off at Io=3ꢀ33 A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Turn-off enabled by disconnecting Vinꢀ Top
trace: output voltage (10 V/divꢀ)ꢀ Bottom trace: input
voltage (5 V/divꢀ)ꢀ Time scale: 10 ms/divꢀ
Start-up at Io=3ꢀ33 A resistive load at TPcb=+25 °C,
Vin=27 Vꢀ Start enabled by connecting Vinꢀ Top trace:
input voltage (5 V/divꢀ)ꢀ Bottom trace: output voltage
(5 V/divꢀ)ꢀ Time scale: 5 ms/divꢀ
Transient
Output Ripple
Output voltage ripple (50mV/divꢀ) at TPcb=+25 °C, Vin=27 V,
Io=3ꢀ33 A resistive load with C=10 µF tantalum and 0ꢀ1 µF
ceramic capacitorsꢀ Band width=20MHzꢀ Time scale: 1µs / divꢀ
Output voltage response to load current step-change
(0ꢀ625-2ꢀ50-0ꢀ625 A) at TPcb=+25 °C, Vin=27 Vꢀ Top
trace: output voltage (200mV/divꢀ)ꢀ Bottom trace:
load current (0ꢀ83 A/divꢀ) Time scale: 0ꢀ1 ms/divꢀ
Output Voltage Adjust
Output Voltage Adjust
<L0IN>
ꢀꢁꢁꢁꢁꢁ
The resistor value for an adjusted output voltage is
calculated by using the following equations:
%FDSFBTF
*ODSFBTF
ꢀꢁꢁꢁꢁ
ꢀꢁꢁꢁ
ꢀꢁꢁ
ꢀꢁ
Output Voltage Adjust Upwards, Increase:
Radj= 5ꢀ11 [15(100+Δ%)/1ꢀ225Δ%- (100+2Δ%)/Δ%]
kOhm
Output Voltage Adjust Downwards, Decrease:
Radj= 5ꢀ11 [(100/Δ%-2)] kOhm
Eg Increase 4% =>Vout = 15ꢀ6 Vdc
5ꢀ11 [15(100+4)/(1ꢀ225x4)-(100+2x4)/4]=1488ꢀ9 kOhm
ꢀ
<ꢆ>
ꢀꢂ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢀꢁ
Eg Decrease 2% =>Vout = 14ꢀ7 Vdc
5ꢀ11 x(100/2-2)=245ꢀ3 kOhm
Output voltage adjust resistor value vsꢀ
percentage change in output voltageꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
1ꢇ
EMC Specification
The conducted EMI measurement was performed using a
module placed directly on the test benchꢀ
The fundamental switching frequency is 180 kHz for
PKM2510E PI @ VI = 27V, IO = (0ꢀ1ꢀꢀꢀ1ꢀ0) x IOmaxꢀ
Printed Circuit Board
Power Module
5µH 50Ω
50 ohm temination
+
out
in
LISN
rcvr
DC
Power
Source
Filter
(if used)
Conducted EMI Input terminal value (typ)
5µH 50Ω
LISN
-
out
in
1 m Twisted Pair
rcvr
Resistive
Load
Optional Connection
to Earth Ground
50 ohm input
EMC
Reciver
Computer
Test set-up.
Layout Recommendation
The radiated EMI performance of the DC/DC converter
will be optimised by including a ground plane in the PCB
area under the DC/DC converterꢀ This approach will re-
turn switching noise to ground as directly as possible, with
improvements to both emissions and susceptibilityꢀ It is also
important to consider the stand-off of the PKM 2000E series
DC/DC converterꢀ If one ground trace is used, it should be
connected to the input returnꢀ Alternatively, two ground
traces may be used, with the trace under the input side of
the DC/DC converter connected to the input return and the
trace under the output side of the DC/DC converter con-
nected to the output returnꢀ Make sure to use appropriate
safety isolation spacing between these two return tracesꢀ
The use of two traces as described will provide the capabil-
ity of routing the input noise and output noise back to their
respective returnsꢀ
PKM 2510 E PI without filter
External filter (class B)
Required external input filter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15Jꢀ
PO422(Pulse)
768uH
3.9nF
+
47uH
0.68uF
+
0.68uF
0.68uF
220uF
DC/DC
Output ripple and noise
-
3.9nF
The circuit below has been used for the ripple and noise
measurements on the PKM 2000E Series DC/DC convertersꢀ
Ceramic
Capacitor
Tantalum
Capacitor
+Vout
+Sense
+
Trim
0.1uF
10uF
Load
-Sense
-Vout
BNC
Connector
to Scope
* Conductor from Vout to capacitors = 50mm [1.97in]
Output ripple and noise test setup
PKM 2510 E PI with filter
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢀ0
Operating Information
Input Voltage
Remote Sense
The input voltage range 18…36Vdc meets typical
requirements in 24 V DC systems used in communications,
avionics, industrial and medical equipmentꢀ At input voltages
exceeding 36V, the power loss will be higher than at normal
input voltage and Tref must be limited to absolute max
+110°Cꢀ The absolute maximum continuous input voltage is
40Vdcꢀ
All PKM 2000E Series DC/DC converters have remote sense
that can be used to compensate for moderate amounts of
resistance in the distribution system and allow for voltage
regulation at the load or other selected pointꢀ The remote
sense lines will carry very little current and do not need a
large cross sectional areaꢀ However, the sense lines on the
PCB should be located close to a ground trace or ground
planeꢀ In a discrete wiring situation, the use of twisted pair
wires or other technique to reduce noise susceptibility
is highly recommendedꢀ The remote sense circuitry will
compensate for up to 10% voltage drop between the sense
voltage and the voltage at the output pinsꢀ The output
voltage and the remote sense voltage offset must be less
than the minimum over voltage trip pointꢀ If the remote sense
is not needed the –Sense should be connected to –Out and
+Sense should be connected to +Outꢀ
Turn-Off Input Voltage
The PKM 2000E Series DC/DC converters monitor the input
voltage and will turn on and turn off at predetermined levelsꢀ
The minimum hysteresis between turn on and turn off input
voltage is 2V where the turn on input voltage is the highestꢀ
Remote Control (RC)
Output Voltage Adjust (Vadj
)
The PKM 2000E Series DC/DC
converters have a remote control
function referenced to the primary
side (- In), with negative and positive
logic options availableꢀ The RC
function allows the converter to be
turned on/off by an external device
like a semiconductor or mechanical
All PKM 2000E Series 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
settingꢀ When increasing the output voltage, the voltage at
the output pins (including any remote sense offset) must
be kept below the overvoltage trip point, to prevent the
converter from shut downꢀ Also note that at increased output
voltages the maximum power rating of the converter remains
the same, and the output current capability will decrease
correspondinglyꢀ To decrease the output voltage the resistor
should be connected between Vadj pin and –Sense pinꢀ
To increase the voltage the resistor should be connected
between Vadj pin and +Sense pinꢀ The resistor value of the
Output voltage adjust function is according to information
given under the output sectionꢀ
+In
RC
-In
Circuit configuration
for RC function
switchꢀ The RC pin has an internal
pull up resistor to + Inꢀ The needed maximum sink current
is 1mAꢀ When the RC pin is left open, the voltage generated
on the RC pin is 3ꢀ5 - 6 Vꢀ The maximum allowable leakage
current of the switch is 50 µAꢀ
The standard converter is provided with “negative logic”
remote control and the converter will be off until the RC
pin is connected to the - Inꢀ To turn on the converter the
voltage between RC pin and - In should be less than 1Vꢀ
To turn off the converter the RC pin should be left open, or
connected to a voltage higher than 4 V referenced to - Inꢀ In
situations where it is desired to have the converter to power
up automatically without the need for control signals or a
switch, the RC pin can be wired directly to - Inꢀ
+Out
+Out
+Sense
+Sense
R
adj
Load
Load
The second option is “positive logic” remote control, which
can be ordered by adding the suffix “P” to the end of the
part numberꢀ The converter will turn on when the input
voltage is applied with the RC pin openꢀ Turn off is achieved
by connecting the RC pin to the - Inꢀ To ensure safe turn
off the voltage difference between RC pin and the - In pin
shall be less than 1Vꢀ The converter will restart automatically
when this connection is openedꢀ
V
V
adj
adj
R
adj
-Sense
-Sense
-Out
-Out
Decrease
Increase
Circuit configuration for output voltage adjust
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢀ1
Operating Information
Current Limit Protection
Maximum Capacitive Load
When powering loads with significant dynamic current
requirements, the voltage regulation at the load can be
improved by addition of decoupling capacitance at the loadꢀ
The most affective technique is to locate low ESR ceramic
capacitors as close to the load as possible, using several
capacitors to lower the effective ESRꢀ These ceramic ca-
pacitors will handle short duration high-frequency compo-
nents of dynamic load changesꢀ In addition, higher values of
electrolytic capacitors should be used to handle the mid-fre-
quency componentsꢀ It is equally important to use good de-
sign practise when configuring the DC distribution systemꢀ
Low resistance and low inductance PCB (printed circuit
board) layouts and cabling should be usedꢀ Remember that
when using remote sensing, all resistance, inductance and
capacitance of the distribution system is within the feed-
back loop of the converterꢀ This can affect on the convert-
ers compensation and the resulting stability and dynamic
response performanceꢀ As a “rule of thumb”, 100µF/A of
output current can be used without any additional analysisꢀ
For example with a 25A converter, values of decoupling
capacitance up to 2500 µF can be used without regard to
stabilityꢀ With larger values of capacitance, the load transient
recovery time can exceed the specified valueꢀ As much of
the capacitance as possible should be outside the remote
sensing loop and close to the loadꢀ The absolute maximum
value of output capacitance is 10 000 µFꢀ For values larger
than this, please contact your local Ericsson Power Modules
representativeꢀ
The PKM 2000E Series DC/DC converters include current
limiting circuitry that allows them to withstand continuous
overloads or short circuit conditions on the outputꢀ The out-
put voltage will decrease towards zero for output currents in
excess of max output current (Iomax)ꢀ
The converter will resume normal operation after removal
of the overloadꢀ The load distribution system should be
designed to carry the maximum output short circuit current
specifiedꢀ
Over Voltage Protection (OVP)
The PKM 2000E Series DC/DC converters have output over-
voltage protectionꢀ In the event of an overvoltage condition,
the converter will shut down immediatelyꢀ The converter will
make continuous attempts to start up (non-latching mode)
and resume normal operation automaticallyꢀ
Over Temperature Protection (OTP)
The PKM 2000E Series DC/DC converters are protected
from thermal overload by an internal over temperature
shutdown circuitꢀ When the PCB temperature adjacent to
the PWM control circuit exceeds 120 ºC the converter will
shut down immediatelyꢀ The converter will make continuos
attempts to start up (non-latching mode) and resume normal
operation automatically when the temperature has dropped
>10ºC below the temperature thresholdꢀ
Input And Output Impedance
The impedance of both the power source and the load will
interact with the impedance of the DC/DC converterꢀ It is
most important to have a ratio between L and C as low as
possible, iꢀeꢀ a low characteristic impedance, both at the in-
put and output, as the converters have a low energy storage
capabilityꢀ The PKM 2000E Series DC/DC converters have
been designed to be completely stable without the need
for external capacitors on the input or the output circuitsꢀ
The performance in some applications can be enhanced by
addition of external capacitance as described under maxi-
mum capacitive loadꢀ If the distribution of the input voltage
source to the converter contains significant inductance, the
addition of a 100µF capacitor across the input of the con-
verter will help insure stabilityꢀ This capacitor is not required
when powering the DC/DC converter from a low impedance
source with short, low inductance, input power leadsꢀ
Parallel Operation
The PKM 2000E Series DC/DC converters can be paralleled
for redundancy if external o-ring diodes are used in series
with the outputsꢀ It is not recommended to parallel the PKM
2000E Series DC/DC converters for increased power without
using external current sharing circuitsꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢀꢀ
Thermal Consideration
General
Calculation of ambient temperature
The PKM 2000E Series DC/DC converters are designed
to operate in a variety of thermal environments, however
sufficient cooling should be provided to help ensure reliable
operationꢀ Heat is removed by conduction, convection and
radiation to the surrounding environmentꢀ Increased airflow
enhances the heat transfer via convectionꢀ The available load
current vsꢀ ambient air temperature and airflow at Vin=53 V
for each model is according to the information given under
the output sectionꢀ The test is done in a wind tunnel with a
cross section of 305x305mm, the DC/DC converter vertically
mounted on a 8 layer PCB with a size of 254x254mmꢀ
Proper cooling can be verified by measuring the temperature
of selected devicesꢀ Peak temperature can occur at position
P1 and P2ꢀ The temperature at these positions should not
exceed the recommended max valuesꢀ
By using the thermal resistance the maximum allowed
ambient temperature can be calculatedꢀ
1ꢀ The powerloss is calculated by using the formula
((1/η) - 1) × output power = power lossesꢀ
η = efficiency of converterꢀ Eꢀg 89% = 0ꢀ89
2ꢀ Find the value of the thermal resistance for each product in
the diagram by using the airflow speed at the output section
of the converterꢀ Take the thermal resistance x powerloss to
get the temperature increaseꢀ
3ꢀ Max allowed calculated ambient temperature is: Max
TPCB of DC/DC converter – temperature increaseꢀ
Eꢀg PKM 2510E PI at 1m/s:
1
Aꢀ ((
) - 1) × 49ꢀ5W = 7ꢀ4W
0ꢀ87
Position
P1
Device
Transformer
Mosfet
Tcritical
Max Value
110ºC
Bꢀ 7ꢀ4W × 6°C/W = 44ꢀ4°C
Tcore
Cꢀ110°C - 44ꢀ4°C = max ambient temperature is 65ꢀ6°C
P2
Tsurface
110ºC
The real temperature will be dependent on several factors,
like PCB size and type, direction of airflow, air turbulence
etcꢀ It is recommended to verify the temperature by testingꢀ
*OQVUꢀTJEF
1ꢁ
"JSGMPX
1ꢀ
0VUQVUꢀTJEF
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢀꢁ
Soldering Information
Reliability
The PKM2000E Series DC/DC converters are intended for
through hole mounting on a PCBꢀ When wave soldering
is used max temperature on the pins is specified to
260°C for 10 secondsꢀ Maximum preheat rate of 4°C/s
and temperature of max 130°C is suggestedꢀ When hand
soldering, 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 overheatingꢀ
The Mean Time Between Failure (MTBF) of the PKM2000E
Series DC/DC converter is calculated at full output power
and an operating ambient temperature (TA) of +40°Cꢀ
Different methods could be used to calculate the predicted
MTBF and failure rate which may give different resultsꢀ
Ericsson Power Modules currently uses two different
methods, Ericsson failure rate data system DependTool and
Telcordia SR332ꢀ
Predicted MTBF for the PKM2000E Series products is:
7ꢀ0 million hours according to DependToolꢀ
1ꢀ6 million hours according to Telcordia SR332, issue 1,
Black box techiqueꢀ
No-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside of the DC/DC power
moduleꢀ The residues may affect long time reliability and
isolation voltageꢀ
The Ericsson failure rate data system is based on field
tracking dataꢀ The data corresponds to actual failure rates
of components used in Information Technology and Telecom
(IT&T) equipment in temperature controlled environments (TA
= -5ꢀꢀꢀ+65°C)ꢀ Telcordia SR332 is a commonly used standard
method intended for reliability calculations in IT&T
equipmentꢀThe parts count procedure used in this method
was originally modeled on the methods from MIL-HDBK-
217F, ReliabilityPredictions of Electronic Equipmentꢀ It
assumes that no reliability data is available on the actual
units and devices for which the predictions are to be
made, iꢀeꢀ all predictions are based on generic reliability
parametersꢀequipmentꢀ For more information please refer to
Design Note 002ꢀ
Delivery Package Information
PKM 2000E series standard delivery packages are 100 or 20
pcs boxes (One box contains 5 or 1 full tray(s)
and 1 empty hold down tray)ꢀ
Tray Specification
Material:
Polystyrene (PS)
10 MOhm/sq
Black
Max surface resistance:
Color:
Capacity:
Loaded tray stacking pitch:
Weight:
20 pcs/tray
16ꢀ2 mm (0ꢀ64 In)
133 g
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 0ꢀ1% by weight
in homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0ꢀ01% by weight in
homogeneous materials for cadmiumꢀ
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 (eꢀgꢀ 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)
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢀꢂ
Sales Offices and Contact Information
Company Headquarters
Ericsson Power Modules AB
LM Ericssons väg 30
SE-126 25 Stockholm
Sweden
Italy, Spain (Mediterranean)
Ericsson Power Modules AB
Via Cadorna 71
20090 Vimodrone (MI)
Italy
Phone: +46-8-568-69620
Fax: +46-8-568-69599
Phone: +39-02-265-946-07
Fax: +39-02-265-946-69
China
Japan
Ericsson Simtek Electronics Coꢀ
33 Fuhua Road
Jiading District
Shanghai 201 818
China
Ericsson Power Modules AB
Kimura Daini Building, 3 FLꢀ
3-29-7 Minami-Oomachi, Shinagawa-ka
Tokyo 140-0013
Japan
Phone: +86-21-5990-3258
Fax: +86-21-5990-0188
Phone: +81-3-5733-5107
Fax: +81-3-5753-5162
North and South America
Ericsson Incꢀ Power Modules
6300 Legacy Drꢀ
Germany, Austria
Ericsson Power Modules AB
Mühlhauser Weg 18
85737 Ismaning
Plano, TX 75024
USA
Germany
Phone: +1-972-583-5254
+1-972-583-6910
Phone: +49-89-9500-6905
Fax: +49-89-9500-6911
Fax: +1-972-583-7839
Hong Kong (Asia Pacific)
Ericsson Ltdꢀ
12/Fꢀ Devon House
979 King’s Road
Quarry Bay
All other countries
Contact Company Headquarters
or visit our website:
www.ericsson.com/powermodules
Hong Kong
Phone: +852-2590-2453
Fax: +852-2590-7152
Information given in this data sheet is believed to be accurate and reliableꢀ
No responsibility is assumed for the consequences of its use nor for any infringement
of patents or other rights of third parties which may result from its useꢀ
No license is granted by implication or otherwise under any patent or patent rights of
Ericsson Power Modulesꢀ These products are sold only according to
Ericsson Power Modules’ general conditions of sale, unless otherwise confirmed in
writingꢀ Specifications subject to change without noticeꢀ
PKM 2000E PI Datasheet
EN/LZT 146 050 R4A ©Ericsson Power Modules, March 2007
ꢀꢃ
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