CANDD cPCI420DC Datasheet

Corporate: www.cdtechno.com
Product: www.cdpowerelectronics.com

cPCI420DC

420 Watt, 6U x 8HP, CompactPCI

Corporate: www.cdtechno.com

 6U X 8HP

 36-72 VDC Input Range

 420 Watts Continuous Output

Power

 Complies with PICMG 2.11

R1.0 with 47 Pin I/O Connector

 Hot-Swap Capable

The cPCI420DC is a high-reliability,
420 watt power supply for 6U Compact
PCI™ systems. Developed to support
hot-swap, redundant operation, the
cPCI420DC is designed for compliance
with PICMG™ 2.11 R1.0 Power
Interface Specification with 47-pin I/O
connector, as well as the underlying
CompactPCI™ standards. Operating
from 36-72VDC, this unit was developed
with high-availability (HA)

 Outputs Individually Protected

Against Overloads; Automatic
Recovery

 PCI VoltageArchitecture

(5V, 3.3V,+12V,-12V)

 No Minimum Load

telecommunications applications in
mind. Active current sharing and internal
ORing diodes are included to support
these and other applications requiring
reliable, hot-swap performance and N+1
redundant configuration. The 8HP
package and complement of agency
approvals provide for a complete power
solution for your CompactPCI™ system
requirements.

SPECIFICATIONS, ALL MODELS

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Operating Voltage Vin 36 72 VDC

Input Voltage Withstand 34 75 VDC

Inrush Current I

INPUT

Efficiency η 48VDC input, 420W load 68 %

OUTPUT NUMBER RATED OUTPUT VOLTAGE MIN MAX REGULATION

V1 +5.0VDC 0A 50 A* +2%

V2 +3.3VDC 0A 40 A* +2%

V3 +12.0VDC 0A 12 A +4%

V4 -12.0VDC 0A 2.0 A +/-4%

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Voltage Adjustment V1 and V2 only +5 %

OUTPUT

Temperature Coefficient TC 0.02 %/°C

PARD 20MHz bandwidth 50 mV

Output Power 50°C max temp. 420 W

* Combined currents from outputs V1 & V2 not to exceed 60A.

i

VOUT RATED OUTPUT CURRENT

36VDC input 8 APK

72VDC input 16 APK

IOUT

all outputs or 1.0% P-P

whichever is greater

cPCI420-DC REV B 8/2002

P-P

)

F

F

F

SPECIFICATIONS, ALL MODELS

Current Share

Active current sharing is employed on outputs V1, V2, and V3.
Accuracy exceeds 10% of maximum rated load. N
Output V4 to share within 40% of maximum rated load by
means of droop response.

Remote Sense

Outputs V1, V2, and V3 capable of compensating up to

0.5VDC of line drop. Unit automatically reverts to local
sensing in the event that the sense leads are opened for any
reason. Unit is protected against reversed or shorted sense
leads.

Output Power

420W continuous maximum, with 400lfm airflow at a
maximum ambient of 50°C. See Derating Chart on page 3 for
additional data.

Overload Protection

Outputs are individually protected against overloads and
indefinite short circuit with automatic recovery upon removal
of the fault condition.

Over Voltage Protection

Output V1 OVP set at 6.0V ± 0.5V

4.3V ± 0.5V
V4 OVP set at -13.5

DC. Output V3 OVP set at 13.5 +0.5VDC. Output

+0.5VDC. The power supply will shut

DC. Output V2 OVP set at

down and latch off under an OVP fault condition. Restart of
the unit is accomplished by cycling of the input power.

Over Temperature Protection

Thermal switch shuts down the power supply in the event that
critical temperatures are exceeded. Unit will automatically
restart when acceptable temperatures are restored.

Output Fault Isolation

Output isolation diodes are present in all outputs to isolate
faults within a failed power supply.

Synchronous Start

Interconnection of the Sync Start pin (pin 23) ensures that the
outputs of parallel supplies will be enabled simultaneously to

max

= 4.

ensure sufficient source current in applications where the load
current exceeds the capacity of a single power supply module.

Remote Inhibit (INH#)

Secondary referenced, active low, TTL compatible signal inhibits
all outputs upon activation.

Power Fail Warning (FAL#)

Secondary referenced, active low, TTL compatible signal
indicates output failure.

Enable (EN#)

Short pin on connector will enable power supply output when
the mating pin is grounded. Supply will not power up until
this pin is engaged to its mate in the backplane. Unit output
will be inhibited as pin is disengaged from the mating
connector.

Temperature Warning (DEG#)

Open collector indicates internal temperatures are
approaching the thermal shutdown limit.

Fault Indicator

Red LED will be ON if output voltages are not within
specification.

Power Present LED

Green LED will be ON when input voltage is present and
above the minimum requirement.

Cooling

400 lfm of airflow required to maintain full output power at 0­50°C ambient. See Derating Chart below for additional data.

Temperature

0-70°C operating range with full output power achievable
over the range of 0-50°C. See Derating Chart below for
additional data. Storage temperature limits are –20 to +85°C.

Altitude

Operating: -200 to +10,000 feet with ambient temperature
derating above 5,000 feet in accordance with the adiabatic
lapse rate.

450

400

350

300

250

200

150

Output Power (Watts

100

50

0

20 30 40 50 60 70

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DERATING CHART

Ambient Temp. ( Degrees C

NOTES: Data points are typical.

Power derating is load profile-dependent;
data shown reflects output load currents
reduced in direct proportion to the power
derating.

400 L

200 L

100 L

)

cPCI420-DC REV B 8/2002

2