NXA66-12P3V3C View Datasheet(PDF) - Artesyn Technologies
Part Name
Description
MFG CO.
'NXA66-12P3V3C' PDF : 2 Pages View PDF
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NXA66 Series
Single output (Non-Isolated)
• Transient response from 0 A to rated full load
(up to 30 A/µs), recovery within 250 µs
• Democratic current sharing, no need for master/slave
con guration
• Programmable output voltage
EOL • Remoteenablepin
• Power good signal
• True double ended di erential remote sense
• Available RoHS compliant
The NXA66 non-isolated dc-dc converter is targeted at computing applications that
require point of load power conversion. The NXA66 is designed to meet the precise
voltage and fast transient requirements of today’s high performance applications such
as workstations, le servers, desktop computers, telecommunications equipment,
adapter cards, DSP and data processing. Employing synchronous recti cation and
democratic current sharing, the NXA66 can be used in a stand-alone con guration, or
paralleled as a building block to achieve higher output currents or redundancy. The
current sharing speci cations are met during static conditions, and transient conditions.
The advanced democratic current sharing technique employed by the NXA66 removes
the need for cumbersome master/slave combinations. The NXA66 uses gold plated
edge tab ngers for a convenient, low impedance interconnect scheme. This also
allows system designers to easily accommodate future expansion in their systems.
All speci cations ar e typical at nominal input, full load at 25
°C unless otherwise stated
2 YEAR WARRANTY
SPECIFICA TIONS
OUTPUT SPECIFICATIONS
Voltage adjus tability
Vout programmable
to 2V5 or 3V3
Total error band
3V3 output
2V5 output
4.5%
4.5%
Ripple and noise
(20 MHz bandwidth) 150 mV pk-pk max.
Transient response
50% to 75% and back
peak dev. settling time to 1.0%, no external cap.
150 mV
400 µs
S hort circuit protection
Isc = 25 A rms
C ontinuous
automatic recovery
INPUT SPECIFICA TIONS
Input voltage range
12 V in nominal
10.8-13.2 Vdc
Input current
No load
Remote OFF
100 mA typ.
10 mA max.
UVLO tur n ON voltage
UVLO tur n OFF voltage
10.4 V max.
8.2 V min.
Star t-up time
Nominal line
15 ms
Active high remote ON/OFF
Logic compatibility
ON
Open circuit voltage
OFF
R ef. to -input
10.8 Vdc min.
0.8 Vdc max.
GENERAL SPECIFICATIONS
E fficiency
3V3 output
2V5 output
S witching frequency
F ix ed
Approvals and
s tandards
Weight
MTBF
Bellcore 332
86%
82%
300 kHz
E N60950
B i-national UL1950
CSA C22.2 No. 234/950
42.6 g (1.5 oz)
3,500,000 hours
ENVIRONMENT AL SPECIFICA TIONS
Maximum temperatur e Operating
shock
Temperature shock
Operating
Non-operating
Humidity
Operating
Storage
Altitude
Operating
Storage
Shock
Operational and
non-operational
5 ˚C/10 min.
10 ˚C/hour
20 ˚C/hour
85% RH
95% RH
10,000 feet max.
50,000 feet max.
50 G 11ms
half sine wave
Vibration
(See Note 3)
Electrostatic discharge
Operational and
non-operational
Operating (See Note 4)
non-operating
0.02 G 2/Hz max.
ESD 15 kV
ESD 25 kV
File Name: nxa66.pdf Rev (02): 20 Dec 2005
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