BCD20005-G Rev AH, 10-Nov-2014 Page 1 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Features
• RoHS lead-free-solder and lead-solder-exempted
products available
• Compliant to PICMG®
CompactPCI® specifications
• Wide range DC or AC input with PFC
• Extremely high efficiency and high power density
• Low inrush current
• 4 high current outputs with flexible load distribution
• Integrated ORing FETs / diodes for true redundancy
• Inhibit and enable inputs
• Remote sense lines
• Single-wire current share function for 3 outputs
• Hot-swap capability
• 47 pin connector, type Positronic
• Overtemperature, overvoltage, overcurrent, and over-
power protection
Description
The CPA and CPD Series are highly reliable power supplies
for CompactPCI® systems, which are increasingly used in
communications, industrial, military, aerospace, and other
applications. These power supplies offer high power density
in plug-in modules that meet the requirements of the PICMG®
power interface specification for CompactPCI® systems.
The converters use the patented EDGETM technology and
provide important advantages such as flexible output power,
extremely high efficiency, excellent reliability, full input-to-
output isolation, negligible inrush current, hot-swap
capability, soft start, and overtemperature protection.
The input is protected by a transient suppressor (varistor)
against surges and transients occurring on the source lines
and cover an operating input voltage range from either 90 to
264 VAC or 36 to 75 VDC.
The outputs are protected against continuous overload,
open-circuit, and short-circuit. Full n+1 redundant operating
mode is made possible by integrated ORing FETs or ORing
diodes. When several converters are connected in parallel, a
Table of Contents Page Page
Safety-approved to EN 60950-1/A12:2011 and
UL/CSA 60950-1 2nd Ed +A1
162.5
6.4"
100
3.94
"
3 U
40.6
1.6"
8 HP
162.5
6.4"
233.3
7.8"
6 U
40.4
1.6"
8 HP
Description ........................................................................... 1
Model Selection .................................................................... 2
Functional Description ......................................................... 3
Electrical Input Data ............................................................. 5
Electrical Output Data ........................................................... 7
Auxiliary Functions .............................................................. 10
Electromagnetic Compatibility (EMC) ................................ 13
Immunity to Environmental Conditions .............................. 15
Mechanical Data ................................................................. 16
Safety and Installation Instructions .................................... 17
Options ............................................................................... 19
BCD20005-G Rev AH, 10-Nov-2014 Page 2 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
single-wire connection between converters ensures proper
current sharing.
The converters are designed with two or three separate
forward converters with fixed switching frequency and
synchronous rectifiers at their output.
LEDs on the front panel and various warning signals display
the status of the converter. The aluminum case acts as a heat
sink and as an RFI shield. It is designed for vertical insertion
into 19" rack systems, but it can also be mounted in any other
position, as long as the necessary airflow is ensured. The
connector is a 47 pin type from Positronic or similar.
Several options are available to meet different requirements.
Note: The sequence of options in the model designation must
follow the order above. G is always placed at the end.
Model Selection
Table 1: Standard models
Model Output Operating input Rated power 1Efficiency 2Case Options4
range ηη
ηη
η
No. Vo nom Io nom Io max Vi min – Vi max Po nom
1min typ
[ V] [A] [A] fi min – fi max [W] [%] [%]
CPD200-4530G Vo1 5.0 20 40 36...(48)...75 VDC 200 80 83.2 3U x 8HP non G
Vo2 3.3 20 40
Vo3 12 2.5 5.5
Vo4 –12 0.5 2
CPD250-4530G Vo1 5.0 25 40 250 80 81.7 3U x 8HP L , A, C
Vo2 3.3 20 40 non G
Vo3 12 4 5.5
Vo4 –12 1 2
CPD500-4530G Vo1 5.0 40 50 500 83 84.5 6U x 8HP C
Vo2 3.3 50 60
Vo3 12 8 12
Vo4 –12 3 4
CPA200-4530G Vo1 5.0 20 40 90...(230)...264 200 81.5 83.7 3U x 8HP non G
Vo2 3.3 20 40 VAC
Vo3 12 2.5 5.5 47 – 63 Hz 3
Vo4 –12 0.5 2
CPA250-4530G Vo1 5.0 25 40 250 81.5 83.2 3U x 8HP L , A, C
Vo2 3.3 20 40 non G
Vo3 12 4 5.5
Vo4 –12 1 2
CPA500-4530 Vo1 5.0 40 50 500 83 85 6U x 8HP L, A, F, C,
Vo2 3.3 50 60 non G
Vo3 12 8 12
Vo4 –12 3 4
CPA550-4530 Vo1 5.0 50 50 550 83 84.7 6U x 8HP non G
Vo2 3.3 50 60
Vo3 12 8 12
Vo4 –12 3 4
1The sum of the power of all outputs may not exceed the total power for the specified required forced-air cooling.
2Efficiency at TA = 25 °C, Vi nom, Io nom.
3Rated input voltage range is 100 – 240 VAC, rated input frequency range is 50 – 60 Hz.
4RoHS is standard, marked with G at the end of the part number. Non G versions only on request.
NFND: Not for new designs Preferred for new designs
BCD20005-G Rev AH, 10-Nov-2014 Page 3 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Fig. 1a
Block diagram of CPA/CPD200 and CPA/CPD250
models. For the pin allocation, see Mechanical Data.
Functional Description
The inputs of all converters are protected against surges and
transients occurring on the source lines. A highly efficient input
filter and an active inrush current limiter ensure a very low
inrush current of short duration. This prevents circuit breakers
and fuses from tripping at switch-on.
All CPA models have an additional bridge rectifier and a boost
converter to provide active power factor correction (PFC)
according to EN 61000-3-2.
The CPx200/250 models (see fig.1a) are equipped with two
independent high efficient 2-switch forward converters,
switching 180° out of phase to minimize the ripple current at
the input.
On the secondary side, two high-current synchronous
rectifiers supply Vo1 (5 V) and Vo2 (3.3 V) with up to 40 A. The
secondary-controlled Vo3 (+12 V) post regulator is supplied by
an additional winding of the 3.3 V main transformer. The linear
regulator for Vo4 (–12 V) is supplied from the output choke of
the Vo3 output. The output filters reduce ripple and noise to a
minimum without compromising the dynamic response.
The models CPD500 (fig. 1b) and CPA500/550 (fig. 1c) exhibit
a third forward converter for both outputs Vo3 and Vo4. The
outputs Vo1 an Vo2 provide up to 50 and 60 A.
All outputs are fully regulated and protected from the bus by
decoupling FETs or diodes. A current monitor calculates the
output power. As soon as the output power exceeds the
maximum threshold level, the converter starts to reduce the
output power by decreasing the output voltages.
In contrast to the outputs Vo1 (5 V), Vo2 (3.3 V), and Vo3
(+12 V) with active current sharing, output Vo4 (–12 V) has a
droop characteristic for passive current sharing.
If for some reason the voltage of any output exceeds the
nominal value significantly, the converter is permanently shut
down. If option L is fitted, this occurs as well, if the max. output
current is exceeded for a predefined time. To reset, the input
voltage must be removed for a short time.
Power-One's Efficient Dual Geometric Edge Technology
(EDGETM) facilitates high current density, increases reliability
by reducing component stresses, and decreases the amount
of heat dissipated. The backbone of this patented technology
is an interleaved, multi-channel forward converter utilising a
transitional resonant switching technique and proprietary
Product Marking
Label with specific type designation, applicable safety
approvals and recognition marks, CE mark, warnings,
Power-One patents, company logo, input voltage range,
nominal output voltages and output currents, degree of
protection, batch no., serial no., and data code including
production site, modification status, and date of production.
Identification of LEDs on the front panel.
Linear
regulator
ORing
FET
ORing
FET
ORing
FET
ORing
diode
V
o1
V
o2
V
o3
V
o4
Secondary
control
circuit
03110f
Input filter
Boost converter ≈135 kHz
1
Inrush
current
limiter Forward
converter
≈135 kHz
1
Only CPA models have a bridge
rectifier and a boost converter
+
+
+
+
+
Forward
converter
≈135 kHz
Secondary
control
circuit
Secondary
control
circuit
45
Primary
control
circuit
Primary
control
circuit
Fuse
+
+
+
–
+
Bridge
rectifier
1
ACN
+DCIN
46
ACL
–DCIN
47
C
Y
C
Y
C
Y
C
Y
C
Y
C
b
C
y
Inhibit
logic
EN#
27
INH#
39
RTN
(22)
BCD20005-G Rev AH, 10-Nov-2014 Page 4 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Fig. 1b
Block diagram of CPD500 models.
For the pin allocation, see Mechanical Data.
Fig. 1c
Block diagram of CPA500/550 models.
For the pin allocation, see Mechanical Data.
leading and trailing-edge pulse-width modulation. It has a
proven track record in high-availability power solutions.
The switching frequency is typically 135 kHz. Recent models
(CPD200/250 version V119 or later, CPA200/250 version
V117 or later, CPA500/550 version V110 or later, not CPD500)
exhibit a crystal oscillator with 131 kHz.
All models have a separate auxiliary supply for the primary
circuits, the CPD500 as well for the secondary circuits. The
secondary bias voltage of the other models is generated by
the forward converters. Only the forward converters are
controlled by the inhibit and enable inputs; see Auxiliary
Functions.
ORing
FET
ORing
FET
ORing
FET
V
i
V
o1
V
o2
V
o3
Secondary
control
circuit
JM041a
+DCIN
46
–DCIN
47
Input filter
Dual interleaved boost
converter ≈105 kHz
Inrush current limiter with
reverse polarity protecton
Forward
converter
≈135 kHz
+
+
+
+
Forward
converter
≈135 kHz
Secondary
control
circuit
Secondary
control
circuit
45
Forward
converter
≈135 kHz
ORing
diode V
o4
Secondary
control
circuit
+
Fuse
+
+
+
+
Auxiliary
con-
verter
V
PBias
VSBias
VDR
CY
CY
CY
CY
CY
CY
–
Cb
Primary
control
circuit
Primary
control
circuit
Primary
control
circuit
Inhibit
logic
EN#
27
INH#
39
RTN
(22)
ORing
FET
ORing
FET
ORing
FET
V
i
V
o1
V
o2
V
o3
JM014b
ACN
46
ACL
47
Input filter
Boost converter ≈135 kHz
Inrush
current
limiter Forward
converter
≈135 kHz
+
+
+
+
Forward
converter
≈135 kHz
45
Forward
converter
≈135 kHz
ORing
diode V
o4
+
Fuse
2nd fuse
(option F)
+
+
+
+
Bridge
rectifier
Auxiliary
con-
verter
V
PBias
V
SBias
C
Y
C
Y
C
Y
C
Y
C
Y
–
C
b
Primary
control
circuit
Primary
control
circuit
Primary
control
circuit
Inhibit
logic
EN#
27
INH#
39
RTN
(22)
Secondary
control
circuit
Secondary
control
circuit
Secondary
control
circuit
Secondary
control
circuit
C
Y
BCD20005-G Rev AH, 10-Nov-2014 Page 5 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Electrical Input Data
General Conditions:
TA = 25 °C, unless TC is specified.
Table 2a: Input data of CPD models
Input CPD200/250 CPD500 Unit
Characteristics Conditions min typ max min typ max
ViOperating input voltage Io = 0 – Io max 36 75 36 75 VDC
Vi nom Nom. input voltage TC min – TC max 48 48
Vi abs Input voltage limits without damage 0 80 0 80
IiTypical input current Vi nom, Io nom 5.1/6.3 2 12.5 A
Ii max Max. input current Vi min, Io nom 7.0/8.7 2 7.6/9.5 2 17 17.5
Iinr p Peak inrush current Vi max, Io nom 12 25
Pi0 No-load input power Vi min, Io = 0 14 28.6 W
Vi nom, Io = 0 18 28
Vi max, Io = 0 27 30 27.5 31
Pi inh Input power, when inhibited Vi min – Vi max 3.2 9.4
CiInput capacitance 1360 15 µF
fswitch Switching frequency Vi nom, Io nom 135 135 kHz
thHold-up time Vi min→ 0 V, Io nom 45 ms
tbo Brown-out time 4 Vi nom, Io nom 45
tsu Start-up time Vi nom, Io nom 150 200 1500
Table 2b: Input data of CPA models
Input CPA200/250 CPA500/550 Unit
Characteristics Conditions min typ max min typ max
ViRated input voltage range Io = 0 – Io max 100 240 100 240 VAC 1
Vi op Operating input voltage TC min – TC max 90 264 90 264
Vi nom Nom. input voltage 50 – 60 Hz 1230 230
Vi abs Input voltage limits without damage 0 5 280 0 280
IiTypical input current Vi nom, Io nom 1.1/1.4 2 2.8/3.1 3 A
Ii max Max. input current Vi min, Io nom 2.9/3.6 2 3.2 /4.0 2 7.1/7.8 3
Iinr p Peak inrush current Vi max, Io nom 15 20
Pi0 No-load input power Vi min – Vi max 23 30 26 32 W
Io = 0
Pi inh Input power, when inhibited Vi min – Vi max 3.2 3.2
CiInput capacitance 1 4 µF
fswitch Switching frequency Vi nom, Io nom 135 135 kHz
thHold-up time Vi min → 0 V, Io nom 20 20 ms
tbo Brown-out time 4 Vi nom, Io nom
tsu Start-up time Vi nom, Io nom 150 150
Power factor Vi nom, Io nom 0.95 0.95 W/VA
1Rated input frequency: 50 – 60 Hz, operating input frequency range: 47 – 63 Hz
2First value for CPD/CPA200, 2nd value for CPD/CPA250
3First value for CPA500, 2nd value for CPA550
4Short interruption of Vi without affecting the outputs
5CPA200/250 with version V117 or higher, as they are equipped with an input overvoltage trigger
BCD20005-G Rev AH, 10-Nov-2014 Page 6 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
JM018a
78
82
86
90
0 50 100 150 200 250 VAC
CPA200/250
CPA500/550
η [%]
JM042
83
84
85
86
40 50 60 70 V
η [%]
CPD500
Fig. 2a
CPA Series: Efficiency versus input voltage
Input Fuse and Reverse Polarity Protection
A metal oxide varistor (voltage dependent resistor VDR)
together with the input filter form an effective protection
against high input voltage transients, which typically occur in
most installations.
An incorporated fuse protects the converter against further
damage in the case of a failure.
Note: The fuse is not customer-accessible.
Table 3: Fuse specification
Model Fuse rating Reference
CDP200/250 250 V, 12.5 A T Schurter SPT 5x20, 0001.2515
CPA200/250 250 V, 5 A T Schurter SPT 5x20, 0001.2511
CPD500 80 V, 25 A F Littlefuse FKS, 166.7000.525
CPA500/550 250 V, 10 A T Schurter MXT250, 0034.6925
To avoid unwanted power losses, the CPD200/250 models
are not protected against reverse polarity at the input by a
serial diode, but only with an antiparallel diode. In the case of
reversed input voltage, the input fuse will blow; however no
further damage will occur.
The CPD500 models are protected against reverse polarity by
a special circuitry, which generates no losses. The converter
will simply not start-up, but no damage will occur.
The CPA Series converters are designed for AC input and
have a rectifier bridge on the input.
Input Current Limitation
All converters incorporate an active inrush current limiter in
the input circuitry, which reduces the peak inrush current value
by a factor of 10 – 15 to protect connectors and switching
devices from damage.
Note: The inrush current limitation is achieved using electronic
circuitry. For effective limitation the converter should not be
switched on and off more frequently than every 8 seconds.
Input Undervoltage Shutdown
CPD200/250 models start at approx. Vi = 22 V, when the input
voltage is applied; at decreasing Vi, they switch off at approx.
21 V.
Note: The input current Ii may exceed Ii max, if Vi ≤ Vi min.
CPD500 models start at Vi = 35 V and switch off at Vi = 33 V.
CPA models exhibit an undervoltage trigger controlling start-
up and shutdown. The threshold is between 80 and 90 VAC.
See also Power Fail Signal.
Note: CPA200/250 with version ≤V116 should not be operated
at Vi ≤Vi min, as these models have no undervoltage shutdown
and will therefore operate with a high input current at full load.
Fig. 2b
CPD500 Series: Efficiency versus input voltage
Efficiency
The efficiency is specified in table 1. Its dependence upon the
input voltage Vi is shown in fig. 2a (CPA models) and fig. 2b
(CPD500 models). The efficiency of CPD200/250 models
depends only marginally upon Vi.
BCD20005-G Rev AH, 10-Nov-2014 Page 7 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Table 4a: Output data of CPD/CPA200 and CPD/CPA250
Output Vo1 (5.0 V) Vo2 (3.3 V) Unit
Characteristics Conditions min typ max min typ max
VoOutput voltage Vi nom, 50% Io nom 4.95 5.0 5.05 3.25 3.3 3.35 V
Io nom Nominal output current 20/25 120 A
Io max Max. output current Vi min – Vi max 40 40
IoL Output current limit TC min – TC max 50 50
Io min Minimum load no min. load required no min. load required
voOutput Switch. frequ. Vi nom, Io nom 20 20 mV
pp
voltage BW = 20 MHz 4
noise 4Total Cext = 22 µF + 100 nF 45 60 40 60
∆VoV Static line regulation Vi min – Vi max, Io nom ±10 ±10 mV
∆VoL Static load regulation Vi nom, 50 – 100% Io max ±10 ±10
∆VoS Overshoot at switch on/off 0 0
vo d Dynamic Voltage Vo1: ∆Io1 = 10 A, dIo1/dt = 2 A/µs ± 120 ± 120
load deviation Vo2: ∆Io2 = 10 A, dIo2/dt = 2 A/µs
tdregulation Recovery time 100 100 µs
αVoTemperature coefficient TC min – TC max ±0.3 ±0.2 mV/K
of output voltage 0 – Io nom, Vi min – Vi max
Electrical Output Data
General Conditions for table 4:
– TA = 25 °C, unless Tc is specified.
– CPD/CPA200: 250 LFM (1.25 m/s), CPD/CPA250: 400 LFM (2 m/s)
– Sense lines connected directly at the connector
Table 4b: Output data of CPD/CPA200 and CPD/CPA250
Output Vo3 (+12 V) Vo4 (–12 V) Unit
Characteristics Conditions min typ max min typ max
VoOutput voltage Vi nom, 50% Io nom 11.76 12.0 12.24 –11.30 –12.0 –12.48 V
Io nom Nominal output current 2.5/410.5/11A
Io max Max. output current Vi min – Vi max 5.5 2
IoL Output current limit TC min – TC max 7 3.5
Io min Minimum load Io3 > 75% Io42no min. load required
voOutput Switch. frequ. Vi nom, Io nom mVpp
voltage BW = 20 MHz 4
noise 4Total Cext = 22 µF + 100 nF 120 120
∆VoV Static line regulation Vi min – Vi max, Io nom ±10 ±10 mV
∆VoL Static load regulation Vi nom, Io = 1 – 2 A ±30 – 380 3
∆VoS Overshoot at switch on/off 0 0
vo d Dynamic Voltage Vo3: ∆Io3 = 2 A, dIo3/dt = 2 A/µs ± 200 ± 200
load deviation Vo4: ∆Io4 = 0.5 A, dIo4/dt = 2 A/µs
tdregulation Recovery time 500 500 µs
αVoTemperature coefficient TC min – TC max ±0.3 ±0.5 mV/K
of output voltage 0 – Io nom, Vi min – Vi max
1First value for CPD200/CPA200, second value for CPD250/CPA250
2Minimum load is only required to maintain regulation of output Vo4
3Droop characteristic for passive current sharing
4Measured with a probe according to IEC/EN 61204, annex A
BCD20005-G Rev AH, 10-Nov-2014 Page 8 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Table 5 a: Output data of CPD500 and CPA500/550
Output Vo1 (5.0 V) Vo2 (3.3 V) Unit
Characteristics Conditions min typ max min typ max
VoOutput voltage Vi nom, 50% Io nom 4.95 5.0 5.05 3.25 3.3 3.35 V
Io nom Nominal output current 40/50150/501A
Io max Max. output current Vi min – Vi max 50 60
IoL Output current limit TC min – TC max 52.2 62 63 74
Io min Minimum load no min. load required no min. load required
voOutput Switch. frequ. Vi nom, Io nom mVpp
voltage BW = 20 M Hz 2
noise 2Total Cext = 22 µF + 100 nF 50 50
∆VoV Static line regulation Vi min – Vi max, Io nom ±10 ±10 mV
∆VoL Static load regulation Vi nom, 50 – 100% Io max ±10 ±10
∆VoS Overshoot at switch on/off 0 0
vo d Dynamic Voltage Vo1: ∆Io1 = 20 A, dIo1/dt = 2 A/µs ±150 ±150
load deviation Vo2: ∆Io2 = 40 A, dIo2/dt = 2 A/µs
tdregulation Recovery time 300 300 µs
αVoTemperature coefficient TC min – TC max ±0.3 ±0.2 mV/K
of output voltage 0 – Io nom, Vi min – Vi max
General conditions for table 5:
– TA = 25 °C, unless Tc is specified.
– CPD500, CPA500: 300 LFM (1.5 m/s), CPA550: 400 LFM (2 m/s)
– Sense lines connected directly at the connector
Table 5b: Output data of CPD500 and CPA500/550
Output Vo3 (+12 V) Vo4 (–12 V) Unit
Characteristics Conditions min typ max min typ max
VoOutput voltage Vi nom, 50% Io nom 11.76 12.0 12.24 –11.52 –12.0 –12.48 V
Io nom Nominal output current 8 3 A
Io max Max. output current Vi min – Vi max 12 4
IoL Output current limit TC min – TC max 13.5 4.3
Io min Minimum load no min. load required no min. load required
voOutput Switch. frequ. Vi nom, Io nom mV
pp
voltage BW = 20 MHz 2
noise 2Total Cext = 22 µF + 100 nF 120 120
∆VoV Static line regulation Vi min – Vi max, Io nom ±10 ±10 mV
∆VoL Static load regulation Vi nom, Io = 2 – 4 A ±50 – 220 3
∆VoS Overshoot at switch on/off 0 0
vo d Dynamic Voltage Vo3: ∆Io3 = 4 A, dIo3/dt = 2 A/µs ± 200 ±150
load deviation Vo4: ∆Io4 = 1 A, dIo4/dt = 2 A/µs
tdregulation Recovery time 300 300 µs
αVoTemperature coefficient TC min – TC max ±0.3 ±0.5 mV/K
of output voltage 0 – Io nom, Vi min – Vi max
1First value for CPA500, second value for CPA550
2Measured with a probe according to IEC/EN 61204, annex A
3Droop characteristic for passive current sharing
BCD20005-G Rev AH, 10-Nov-2014 Page 9 of 19
MELCHER
The Power Partners.
CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Hold-up Time of CPD Models
For extended hold-up time of CPD models, use external
output capacitors or decoupling diodes and input capacitors
of adequate size.
Formula for additional external input capacitor:
2 • Po • (th total – th) • 100
Ci ext = –––––––––––––––––––––
η • (Vti2 – Vi min2)
whereas:
Ci ext = external input capacitance [mF]
Po= output power [W]
h= efficiency [%]
th total = total hold-up time [ms]
th= hold-up time [ms]
Vi min = minimum input voltage [V]
Vti = threshold level [V]
Note: After Vi was removed, the outputs maintain their voltage
for the time th. Even if Vi comes back during th, but after th, the
output voltage might be affected.
Redundant Operation and Hot Swap
Due to the integrated ORing FETs/diodes, the converters are
designed to be operated in redundant systems.
Hot swap is also possible, but the output voltages of each
bus may deviate dynamically by ≤5% during the plug-in / plug-
out operation.
Note: We recommend connecting some capacitors parallel to
the bus to limit voltage deviations during hot swapping and
during switch-on / switch-off of the input voltage of one of the
parallel-connected converters.
Output Characteristic and Protection
All outputs are fully protected against continuous open-circuit
(no load) and continuous short-circuit conditions.
All outputs of CPx200/250 models have a constant current
limitation with a rectangular characteristic; see figure 3. In
addition, the total power from outputs Vo1, Vo2, and Vo3 is
limited to P
o max, resulting in a free choice of load distribution
between these outputs. Output Vo4 is disabled in the case of
overtemperature generated by overcurrent.
In CPA500/550 and CPD500 models, the total power of all
four outputs is limited to P
o max.
In all models, all outputs are monitored for an overvoltage
condition. If an overvoltage of 120 – 130% is detected, the
converter is permanently disabled. To reset, the input voltage
must be removed for 10 – 20 seconds.
Note: The models CPA500/550 with version number before
V110 need approx. 60 s to recover.
Thermal Considerations and Protection
If a converter is mounted in the upright position with airflow as
specified in the general conditions of the tables 4 and 5,
allowing unrestricted forced-air cooling, and is operated at its
nominal input voltage and power at maximum ambient
temperature TA max (see Temperatures), the temperature at the
measurement point of the case temperature TC (see
Mechanical Data) will approach after an initial warm-up
phase the indicated maximum value of TC max (105 °C).
However, the relationship between TA and TC depends heavily
on the operating conditions and the system integration. The
thermal conditions are significantly influenced by the input
voltage, the output current, the airflow, and the temperature of
the adjacent elements and surfaces. TA max is therefore,
contrary to TC max, an indicative value only.
Caution: The installer must ensure that under all operating
conditions TC remains within the limits shown in the diagrams
fig. 4.
Fig. 4b
Output power versus temperature T
A at Vi nom (CPD/CPA250)
Fig. 4a
Output power versus temperature TA at Vi nom (CPD/
CPA200)
Fig. 3
Typical output characteristic Vo versus Io
1.0
0.95
0.5
0
V
o
/V
o nom
I
o
I
o nom
I
o max
I
o L
05186b
0
0.5
50 60 70 80
Po/Po nom
1.0
250 LFM = 1.25 m/s
JM011a
TA min 90 °C
0.6
Convection cooling
in upright position
40
0
0.5
50 60 70 80
P
o/P
o nom
1.0
200 LFM = 1 m/s
05190c
TA min
Convection cooling
in upright position
90 °C
400 LFM = 2 m/s
40
BCD20005-G Rev AH, 10-Nov-2014 Page 10 of 19
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CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Auxiliary Functions
Inhibit and Enable
The inhibit input INH# enables (logic high) or disables (logic
low, pull down) all outputs, when a logic signal (TTL, CMOS) is
applied. In systems consisting of several converters this
feature may be used to control the activation sequence of the
converters or to enable the source to start-up, before full load
Fig. 6
Inhibit and enable inputs
Table 6: Inhibit data
Characteristics Conditions min typ max Unit
Vinh Inhibit Vo = off Vi min – Vi max –2 0.8 V
voltage Vo = on Io = 0 – Io max 2.4 50
trRise time 120 ms
tfFall time depending on Io
is applied. When INH# is low, the converter cannot be
activated by the EN# pin
Note: If this function is not used, the inhibit pin 39 can be left
open-circuit (not connected). If pin 39 is connected to a return
pin (e.g. pin 22), the internal logic will disable all outputs. The
inhibit input is protected by a decoupling diode.
EN# (pin 27) is CMOS-compatible. However, we recommend
to connect it directly with a return pin (e.g. pin 22) to enable the
converter. Pin 27 is shorter than the others, ensuring start-up
only, after all other pins were connected to the system. This
provides true hot-swap capability.
Note: When a CPA or CPD500 converter is disabled by INH# and/
or EN #, the PFC booster remains active, keeping the boost
capacitor Cb (fig. 1) charged. As a result, there is no inrush
current at restart.
Note: When a CPD 500/550 converter is disabled, on outputs 3
and 4 may appear a little voltage under no-load condition. This
can be avoided by a small preload.
Fig. 7
Typical output response as function of inhibit voltage.
0
t
t
0
Inhibit
1
0.1
1
V
o
/V
o nom
t
r
t
f
06155a
Fig. 5
Output filter reducing the output ripple of Vo1 and Vo2
Vo1
RTN
Input
JM010
46
47 5
–12
13
–18 Vo2
33 Vo2SENSE
Vo1SENSE
30
1
–
4
L
1
L
2
++C
1
C
2
5 V
Gnd
3.3 V
Fig. 4c
Output power versus TA at Vi nom (CPA500/550, CPD500)
Note: Forced-air cooling (or an additional heat sink on customer-
specific models) can improve the reliability or allow for higher TA,
as shown in the diagrams fig. 4, but TC max shall never be
exceeded.
A temperature sensor fitted on the main PCB provides approx.
20 °C below TC max a warning signal (DEG#), at which the
control logic begins to reduce the output power. The output
power returns to the normal value, when the temperature
drops back below this limit; see Temperature Warning and
Shutdown.
Output Filter
The output ripple voltage can be reduced by an external filter to
less then 5 mVpp. Recommended values:
• C1, C2: Low ESR capacitor, e.g., OS-CON 100 – 470 µF
• L1, L2: Choke 1 – 4.7 µH with appropriate rated current,
e.g., Coiltronics® HC2LP 1 µH /33 A or 2.2 µH /24 A.
46
47 RTN
VINH#
06153d
INH# 39
(22)
EN# 27
0
0.5
50 60 70 80
P
o
/P
o nom
1.0
300 LFM = 1.5 m/s (CPA/CPD500)
400 LFM = 2 m/s (CPA550)
JM012b
T
A min
90 °C
0.6
Convection cooling
in upright position
CPA550
CPA/CPD500
40
BCD20005-G Rev AH, 10-Nov-2014 Page 11 of 19
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CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Fig.10
Power Fail: JFET output, IFAL# ≤ 10 mA
Sense Lines
This feature is available only for the outputs Vo1, Vo2, Vo3,
and allows the compensation of voltage drops across the
connector contacts and if necessary, across the load lines.
To ensure correct operation, all sense lines S+ (Vo1SENSE,
Vo2SENSE, and Vo3SENSE) should be connected to the
respective power outputs. The common sense return S–
(SRTN) should be connected to RTN (pin 5 – 12).
Note: Open sense lines are admissible, but the output voltage
regulation will be poor.
The voltage difference between any sense line at its
respective power output pin (as measured on the connector)
should not exceed the following values.
Note: If the sense lines S+ and S– compensate for a
considerable voltage drop, the output loads shall be reduced in
order to respect the maximum output power.
Temperature Warning and Shutdown
A temperature warning circuitry monitors the case
temperature TC. Its output signal VDEG# changes from high to
low impedance, when the TC exceeds the upper threshold
level, and changes back to high impedance, when TC falls
below the lower threshold level, which is 85 °C ± 5 °C.
Pin 38 (degrade signal DEG#) is internally connected via the
collector-emitter path of an NPN transistor to the signal return
pin 22. The current IDEG# through pin 38 should not exceed 40
mA, and VDEG# should not exceed 40 V.
If TC exceeds 105 °C, the converter will be disabled. It
resumes operation automatically, once TC falls below 105 °C.
Fig. 8
Degrade signal: NPN output VDEG# ≤40 V, IDEG# ≤20 mA
Vo+
RTN
DEG#
V
DEG#
I
DEG#
R
p
Input
11056a
38
46
47 22
Fig. 9
Degrade signal VDEG# versus case temperature TC
05189c
0
2
4
6
8
10
60 70 80 90 100 110 °C
VDEG# [V]
signal DEG#
0
0.2
0.4
0.6
0.8
1
P
o
/P
o max
thermal shutdown
Power Fail Signal
The power fail circuitry monitors the input voltage Vi and all
output voltages. The signal VFAL# changes from high to low
impedance (<0.5 V), when one of the monitored voltages falls
below the threshold. VFAL# changes back to high impedance,
when all monitored voltages exceed their threshold level.
The threshold level for Vo corresponds to approx. 90% of
Vo nom.
The threshold levels for Vi correspond to approx. 34 V for CPD
models and 80 – 90 VAC for CPA models.
Note: CPD200/250 (and CPA200/250 up to version V116)
provide only the signal FAL#, but the converter is not inhibited.
Note: Vi min of CPA models is considered as insufficient, when
Vi remains for typ. 30 ms below √–
2 • Vi min.
Connector pin 42 (signal VFAL#) is internally connected via the
drain-source path of a JFET (self-conducting type) to the
signal return pin 22. The current IFAL# should not exceed
10 mA. VFAL# should not exceed 40 V, as the JFET is not
protected against overvoltage.
Vo+
RTN
FAL#
V
FAL#
I
FAL#
R
p
Input
JM110
42
46
47 22
Table 7: Sense line data
Output Total voltage difference between sense lines
[V] and their respective outputs
3.3 0.8 V
51 V
12 1 V
BCD20005-G Rev AH, 10-Nov-2014 Page 12 of 19
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CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
LEDs "Input OK" and "Fault" status versus input voltage.
Conditions: Po – Po max , TC – TC max , Vinh = open
LED "Fault" status versus output current.
Conditions: Vi min – Vi max, TC – TC max , Vinh = open
LED "Fault" status versus case temperature.
Conditions: Po – Po max , Vi min – Vi max , Vinh = open
LED "Fault" status versus Vinh.
Conditions: Po – Po max , Vi min – Vi max , TC – TC max
V
i
Input OK
T
C
T
C max
V
i inh
+50 V
+0.8 V +2.4 V
-2 V
V
inh threshold
LED off
If +12 V bus voltage is present, LED is on.
LED on
LED Status undefined
06156a
V
i min
V
i max
I
O
I
oL
Fault
Fault
Fault
Fault
Fig. 12
Display status of LEDs
Active Current Sharing for Vo1, Vo2, Vo3
The current share facility, consisting of a single-wire link,
should be used, where several converters are operated in
parallel connection, for example, high reliability n+1
redundant systems or systems providing higher output
power.
Note: Maximum six converters can be connected in parallel.
Using this feature reduces the stress of the individual
converters and improves the reliablity of the system.
Interconnection of the current sharing terminals causes the
converters to share the output current evenly. In n+1
redundant systems a failure of a single converter will not lead
to a system failure, since the outputs are already decoupled
by FETs and diodes internally.
Passive Current Sharing for Vo4
The output voltage changes slightly with the output current
(droop characteristic) ensuring automatic current sharing
without further precautions when several converters are
connected in parallel. An increase in output current
decreases the output voltage according to fig. 11.
Fig. 11
Output voltage Vo4
versus output current Io4
.
LEDs
A green LED "Input OK" and a red LED "Fault" are incorporated
in the front panel.
+2%
–2%
0.01 0.5 1
I
o
/I
o nom
V
o4 set
∆V
o
CPx200/250
05188c
–4%
–4%
CPx500/550
BCD20005-G Rev AH, 10-Nov-2014 Page 13 of 19
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CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
which typically occur in most installations. The converters
have been successfully tested to the following specifications:
Electromagnetic Compatibility (EMC)
A metal oxide VDR together with the input fuse and a filter form
an effective protection against high input voltage transients,
Table 8: Immunity type tests
Phenomenon Standard Level Coupling Value Waveform Source Test In Per-
mode 1 applied imped. procedure oper. form. 2
Electrostatic IEC/EN 4 contact discharge 8000 Vp1/50 ns 330 Ω10 positive and yes A
discharge 61000 -4-2 air discharge 15000 Vp10 negative
(to case) discharges
Electromagnetic IEC/EN 3 antenna 10 V/m AM 80% n.a. 80 – 1000 MHz yes A
field 61000 -4-3 1 kHz
10 V/m 50% duty cycle 900 ±5 MHz
200 Hz repeti-
tion frequency
Electrical fast IEC/EN 2 capacitive, o/c 1000 Vpbursts of 5/50 ns 50 Ω60 s positive yes A
transients/burst 61000 -4-4 3 direct, i/c, +i/– i 2000 Vp2.5/5 kHz over 60 s negative
15 ms; burst transients per
period: 300 ms coupling mode
Surges IEC/EN 3 i/c 2000 Vp1.2/50 µs 12 Ω5 pos. and 5 neg. yes B
61000 -4-5 +i/–i 1000 Vp2 Ωsurges per
coupling mode
Conducted IEC/EN 3 i, o, signal wires 10 VAC AM 80% 150 Ω0.15 – 80 MHz yes A
disturbances 61000-4-6
(140 dBµV)
1 kHz
1 i = input, o = output, c = case connected to PE
2 A = normal operation, no deviation from specifications, B = normal operation, temporary loss of funciton or deviation from specs
possible.
Electromagnetic Immunity
Power Factor
The CPA models exhibit a booster providing a correction of the
power factor (PFC). The power factor is better when the input
voltage is low.
Table 9: Electromagnetic emissions for CPA models.
Phenomenon Standards Conditions Results
Harmonics EN 61000-3-2 + A2: 2009 Vi = 230 V, Vo nom, Io nom Class A
Voltage fluctuation and flicker EN 61000-3-3: 2008 Vi = 230 V, Vo nom, Io nom Class A
BCD20005-G Rev AH, 10-Nov-2014 Page 14 of 19
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CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
30 50 100 200 500 1000 MHz
dBµV/m
10
20
30
40
0
50
Power-One EMC Test Lab. Dubnica, CPA250-4530G, V116, B01466292 U00942, 2010-05-10_
Testdistance 10 m, , Ui=230 VAC / 50 Hz, Po = Ponom, no filter, 25 °C
JM113
EN 55011 A
30 50 100 200 500 1000 MHz
dBµV/m
10
20
30
40
0
50
EN 55011 A
EMC Product Service Divina, CPA250-4530G, B00009076 U00942, 2012-07-17
Testdistance 10 m, , Ui=230 VAC / 50 Hz, Po = Ponom, filter KITAGAWA RFC-10
<25 dbµV/m
EN 55022 A
JM112
Fig. 15
CPA500-4530: Typical disturbance voltage (peak) at line
input accord. to EN 55011/22, measured at Vi nom and Po nom
Electromagnetic Emissions
Fig. 13
CPD200/250: Typical disturbance voltage (peak) at line
input according to EN 55022, measured at Vi nom and Po nom.
Fig. 14a
CPA250-4530: Typical disturbance voltage at line input
according to EN 55011/22, measured at Vi nom and Po nom.
CPA500-con+p
CPA500-4530S211 V107 W0622, Vi=230VAC, Ponom, Peak, Phase, Uster, 20-Sep-07
dBµV
0.2 0.5 1
2 5 10 20 MHz
60
20
40
80 EN 55022 A
EN 55022 B
CPD200-con+p_a
CPD200, B738613, 50807-TU, Peak L, Conducted 0.15 - 30 MHz, Divina, 7-Mar-07
dBµV
0.2 0.5 1
2 5 10 20 MHz
60
20
40
80 EN 55022 A
EN 55022 B
0
dBµV
20
40
60
80
0.2 0.5 1 2 5 10 20 MHz
JM111
Power-One EMC Labatory, Vi = 230 VAC, Pout = Ponom
CPA250-4530G, B00008563 U00251 V115,30.01.2012
EN 55011 A qp
EN 55011 A av
Fig. 14b
CPA250-4530: Typical disturbance voltage at line input
according to EN 55011/22, measured at Vi nom and Po nom.
Fig. 14c
CPA250-4530 with a core across the input lines.
Radiated emissions EN 55011/22, measured at Vi nom and
Po nom.
To improve related emission results, use a ferrite core on the
Iinput wires, of type Kitagawa GRFC-10 or equivalent. Fig.
14c shows that EN 55011/55022, class A is kept. This is a
condition for the CCC approval.
Conducted and radiated emissions of CPD500 comply with
EN 55011/55022 class A.
BCD20005-G Rev AH, 10-Nov-2014 Page 15 of 19
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CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Immunity to Environmental Conditions
Table 10: Mechanical and climatic stress (tests of CPD500 are in process)
Test method Standard Test conditions Status
Cab Damp heat IEC/EN 60068-2-78 Temperature: 40 ±2 °C Converter
steady state Relative humidity: 93 +2/-3 % not
Duration: 56 days operating
Ea Shock IEC/EN 60068-2-27 Acceleration amplitude: 20 gnConverter
(half-sinusoidal) Bump duration: 11 ms operating
Number of bumps: 18 (3 in each direction)
Eb Bump IEC/EN 60068-2-29 Acceleration amplitude: 15 gnConverter
(half-sinusoidal) Bump duration: 6 ms operating
Number of bumps: 6000 (1000 in each direction)
Fda Random vibration IEC/EN 60068-2-35 Acceleration spectral density: 0.05 gn2/Hz Converter
wide band, CPD200/250, CPA200/250 Frequency band: 20 – 500 Hz operating
reproducibility Acceleration magnitude: 4.9 gn rms
high Test duration: 3 h (1 h in each axis)
IEC/EN 60068-2-35 Acceleration spectral density: 0.01 gn2/Hz Converter
CPD500, CPA500/550 Frequency band: 20 – 500 Hz operating
Acceleration magnitude: 2.2 gn rms
Test duration: 1.5 h (0.5 h in each axis)
Temperatures
Table 11: Temperature specifications, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar)
Relative humidity2 [%] Temperature [°C]
Characteristics Conditions min typ max min typ max
TAAmbient temperature Operational
1 595–25
3 50
TCCase temperature 5 95 –25 3 105
TSStorage temperature Non operational 10 95 –40 85
1See Thermal Considerations
2Non condensing humidity
3–40 °C for CPx200/250 version V117 (or higher) and CPA500/550 version V110 (or higher). The output ripple is increased.
Reliability
Table 12: MTBF
Ratings at specified Model Ground Ground fixed Ground Unit
case temperature benign mobile
40 °C 40 °C 70 °C 50 °C
MTBF acc. to CPD250 288 000 59 000 33 000 27 000 h
MIL-HDBK-217F, notice 2 CPA250 279 000 57 000 31 000 33 000
CPA500 195 000 35 000 17 000 16 000
Bellcore CIR SR-332-1 CPD500 100 000
BCD20005-G Rev AH, 10-Nov-2014 Page 16 of 19
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CompactPCI® CPA, CPD Series Data Sheet
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Mechanical Data
Dimensions in mm (inches)
Fig. 16•
CPA200/250 and
CPD200/250.
Overall size: 162.5 x
128.7 x 40.6 mm.
Weight: 0.8 kg
European
Projection
Fig. 17
View of the
connector
Fig. 18
CPD500 and
CPA500/550.
Overall size: 223.4
x 162.5 x 40.6 mm.
Weight: 1.65 kg
40.34
(1.588")
261.9 (10.311")
233.35
( 9.187")
228.35
(8.99")
2.5
(0.098")
6.6
(0.260")
162.63 (6.403")
169.52 (6.674")
JM015a
Size:
6U x 8HP
pin 47
pin 1
12.88
(0.507")
AIRFLOW
Measuring point of the
case temperature TC
09135d
95 (3.74")
100 (3.937")
40.6 (1.60")
128.7 (5.067")
Size:
3U x 8HP
Measuring point of the
case temperature TC
2.5
(0.098") 162.63 (6.403")
169.52 (6.674")
12.88 (0.507")
6.6 (0.260")
pin 47
pin 1
AIRFLOW
BCD20005-G Rev AH, 10-Nov-2014 Page 17 of 19
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CompactPCI® CPA, CPD Series Data Sheet
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Table 13: Pin allocation of the front connector
Pin1
Length
2
Signal Description Pin1
Length
2
Signal Description
name name
1 – 4 B Vo1 Output 1 32 C n.c. Do not connect
5 – 12 B RTN Return (Vo1 and Vo2) 33 C Vo2SENSE Vo2 remote sense
13 – 18 B Vo2 Output 2 34 C SRTN Sense return
19 B RTN Return (Vo3) 35 C Vo1SHARE Vo1 current share
20 B Vo3 Output 3 36 C Vo3SENSE Vo3 remote sense
21 C Vo4 Output 4 37 C n.c. Do not connect
22 C RTN Return 38 C DEG# Degrade signal
23 C Reserved Reserved 39 C INH# Inhibit
24 C RTN Return (Vo4) 40 C n.c. Do not connect
25 C n.c. Do not connect 41 C Vo2SHARE Vo2 current share
26 C Reserved Reserved 42 C FAL# Fail signal
27 D EN # Enable 43 C n.c. Do not connect
28 C n.c. Do not connect 44 C Vo3SHARE Vo3 current share
29 C n.c. Do not connect 45 A
3
CGND Chassis ground
30 C Vo1SENSE Vo1 remote sense 46 A +DCIN 4 ACN 5Pos. DC input 4 Neutral line 5
31 C n.c. Do not connect 47 A –DCIN 4 ACL5Neg. DC input 4 Line input (phase) 5
1Pin numbers shown are for the female backplane connector
2A = very long pins, B = long pins, C = short pins, D = very short pins.
3Pin 45 of the female connector is leading, ensuring that chassis ground makes contact first.
4CPD models (DC input)
5CPA models (AC input)
Safety and Installation Instructions
Connector Pin Allocation
The connector pin allocation table defines the electrical
potentials and the physical pin positions on the Positronic
connector. Pin no. 45 (protective earth) is a leading pin,
ensuring that it makes contact with the female connector first.
Installation Instructions
These converters are components, intended exclusively for
installation within other equipment by an industrial assembly
process or by a professionally, competent person. Installation
must strictly follow the national safety regulations in respect of
the enclosure, mounting, creepage distances, clearance,
casualty markings, and segregation requirements of the end-
use application.
Connection to the system shall be made via the mating
female connector (see fig. 16). Other installation methods
may not meet the safety requirements. Check for hazardous
voltage, before altering any connections.
The converters are provided with a leading pin no. 45, which is
reliably connected to the case. For safety reasons it is
essential to connect this pin to the protective earth of the
supply system.
The input –DCIN or ACL (pin no. 47) is internally fused; see
Input Fuse and Protection. This fuse is designed to break an
overcurrent in case of a malfunction of the converter and is not
customer-accessible.
External fuses in the wiring to one or both input lines (pin 47
and/or pin 46) may be necessary to ensure compliance with
local requirements. A built-in second fuse in the neutral line
(pin 47) is available as option F for CPA500 models.
A second fuse in the wiring to the neutral line or option F may
be needed if:
• Local requirements demand an individual fuse in each
source line
• Neutral and earth impedance is high or undefined
• Phase and neutral of the mains are not defined or cannot
be assigned to the corresponding terminals.
Caution:
Installation must strictly follow the national safety regulations.
Models with option F: Caution! Double-pole/neutral fusing.
Do not open the converters, or the warranty will be invalidated!
Important: If the inhibit function is not used, pin 39 (i) should be
left open-circuit to enable the outputs. Enable Pin 27 (EN#)
should be connected to pin 22 (RTN) to enable the outputs.
Make sure that there is sufficient airflow available for
convection cooling. This should be verified by measuring the
case temperature, when the converter is installed and
operated in the end-use application. The maximum specified
case temperature TC max should not be exceeded.
Fig. 19
Pinout of the front connector
10087a
2468 101214161820
1357911
13 15 17 19
45 47
46
23 26 29 32 35 38 41 44
22 25 28 31 34 37 40 43
21 24 27 30 33 36 39 42
Connector: Positronic PCIH47M400A1 or similar
Mating female connector: Positronic PCIH47F300A1 or similar
BCD20005-G Rev AH, 10-Nov-2014 Page 18 of 19
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CompactPCI® CPA, CPD Series Data Sheet
200 – 550 Watt AC-DC and DC-DC Converters
Make sure that a converter failure (e.g. by an internal short-
circuit) does not result in a hazardous condition.
Standards and Approvals
All converters are safety-approved to EN 60950-1/A12:2011 and
UL/CSA 60950-1 2nd Ed +A1.
The converters correspond to Class I equipment. The
following considerations have been made during design
concerning safety:
• Build-in component
• Functional insulation between output(s) and case
• Use in a pollution degree 2 environment.
• CPD-models: Basic insulation between input and case/
output, based upon 75 VDC. The input is identified as TNV-2.
• CPA-models: Basic insulation between input and case,
and double or reinforced insulation between input and
output, based upon 250 VAC.
• CPA-models up to 60 Hz.
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards.
Isolation
The electric strength test is performed as factory test in
accordance with EN 50116 and EN/IEC 60950; see table 13.
Only the test between input and [case+outputs], marked with
footnotes 1 and 2, may be repeated by the customer.
Note: The DC test voltage shall be slowly increased (within
several seconds) and maintained for max. 2 seconds. Trigger
level 25 µA. Power-One is executing these factory tests with a
reasonable margin, to guarantee its repetition.
Test with AC is not possible due to the incorporated Y caps.
However, the standards allow testing with a corresponding DC
voltage.
Power-One will not honor any warranty claims, if the customer
provides other or incorrect electric strength tests.
Operation at >60 Hz and Leakage Currents
Operation up to 440 Hz is possible, but the X and Y caps are
not safety-approved to this frequency. The efficiency
decreases by approx. 2%, and the leakage currents are
proportional higher.
Protection Degree
The converters correspond to protection degree IP 20,
provided that the female connector is fitted.
Cleaning Liquids
The power supplies are not hermetically sealed. In order to
avoid possible damage, any penetration of cleaning and
other fluids shall be avoided.
Safety of Operator-Accessible Output Circuits
If the output circuit of a converter is operator- accessible, it
shall be an SELV circuit according to the IEC/EN 60950
related safety standards.
However, it is the sole responsibility of the installer to ensure
the compliance with the relevant and applicable local safety
regulations
Table 14: Isolation
CPD models CPA models Unit
Characteristic Input to Output to Input to Output to
(case + output) case (case + output) case
Electric Actual factory test ≥1 s 1500 1700 2200
2700 VDC
strength AC test voltage equivalent 1000 500 1500 500 VAC
test to factory test
Insulation resistance at 500 VDC >300 >300 >300 >300 MΩ
1 According to IEC/EN 60950, subassemblies connecting input to output are pre-tested with ≥3 kVDC.
2 According to IEC/EN 60950, subassemblies connecting input to output are pre-tested with ≥4.3 kVDC or 3 kVAC.
BCD20005-G Rev AH, 10-Nov-2014 Page 19 of 19
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CompactPCI® CPA, CPD Series Data Sheet
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Options
L: Output Current Latch
All CPA/CPD models exhibit a latching shutdown, which is
activated if only one output voltage is too high; see Output
Characteristic and Protection.
If option L is fitted, this latch is as well activated, if the current
limit of one output is exceeded for approx. 0.5 s.
A: Face Plate without Logo
The Power-One logo is not printed to the front plate.
F: Built-in Second Fuse
Available for CPA500 models only. A 2nd fuse in the neutral
input line provides safe phase to phase connection at low
mains voltages (e.g., USA 120/ 208 V / 60 Hz systems).
The built-in second fuse enables safe connection to the
mains, where phase and neutral line are not defined, as e.g.,
in the case of plug and socket connection to the mains via
German Schuko-plugs; see also Safety and Installation
Instructions.
C: Protective Lacquer
All boards are covered by a protective lacquer.
G: RoHS
RoHS-compliant for all six substances (standard for
CPD500). This feature is standard. Products soldered with
leaded tin (non G) are only available on request.
NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
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