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Emerson

NXA66-12P3V3CY Datasheet Preview

NXA66-12P3V3CY Datasheet

DC-DC / Non-Isolated Memory

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NXA66 Series
Single output (Non-Isolated)
DC-DC CONVERTERS 66 W Non-isolated DC-DC Converters
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
configuration
Programmable output voltage
Remote enable pin
Power good signal
True double ended differential 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, file servers, desktop computers, telecommunications equipment,
adapter cards, DSP and data processing. Employing synchronous rectification and
democratic current sharing, the NXA66 can be used in a stand-alone configuration, or
paralleled as a building block to achieve higher output currents or redundancy. The
current sharing specifications 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 fingers for a convenient, low impedance interconnect scheme. This also
allows system designers to easily accommodate future expansion in their systems.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
1
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
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
Short circuit protection
Isc = 25 A rms
Continuous
automatic recovery
INPUT SPECIFICATIONS
Input voltage range
12 Vin nominal
10.8-13.2 Vdc
Input current
No load
Remote OFF
100 mA typ.
10 mA max.
UVLO turn ON voltage
UVLO turn OFF voltage
10.4 V max.
8.2 V min.
Start-up time
Nominal line
15 ms
Active high remote ON/OFF
Logic compatibility
ON Open circuit voltage
OFF
Ref. to -input
10.8 Vdc min.
0.8 Vdc max.
GENERAL SPECIFICATIONS
Efficiency
3V3 output
2V5 output
Switching frequency
Fixed
Approvals and
standards
Weight
MTBF
Bellcore 332
86%
82%
300 kHz
EN60950
Bi-national UL1950
CSA C22.2 No. 234/950
42.6 g (1.5 oz)
3,500,000 hours
ENVIRONMENTAL SPECIFICATIONS
Maximum temperature 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
0.02 G2/Hz max.
Operating (See Note 4)
non-operating
ESD 15 kV
ESD 25 kV
File Name: nxa66.pdf Rev (02): 20 Dec 2005




Emerson

NXA66-12P3V3CY Datasheet Preview

NXA66-12P3V3CY Datasheet

DC-DC / Non-Isolated Memory

No Preview Available !

NXA66 Series
Single output (Non-Isolated)
DC-DC CONVERTERS 66 W Non-isolated DC-DC Converters
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
2
INPUT
VOLTAGE
12 Vdc
NOMINAL OUTPUT
VOLTAGE
3.3/2.5 Vdc
NOMINAL OUTPUT
CURRENT
20 A
MINIMUM
EFFICIENCY
86/82%
MODEL
NUMBER (5,6)
NXA66-12P3V3CY
Notes
1 In this view, row B of the edge connector is visible. The leftmost pin is pin
50, and the rightmost pin is pin 26. Row A of the connector is on the
opposite side of the unit. Pin 1 is behind pin 50, pin 25 is behind pin 26.
See below for pinout.
2 Recommended mating connector is AMP 145432 or equivalent. Pin 44 is
absent and is used for electrical key. AMP keying plug PN 65025-2 may
be placed in the mating connector between pins 33 and 34, and between
pins 17 and 18. This keying plug serves as a mechanical key.
3 From 5 Hz to 20 Hz, maintaining 0.02 G2/Hz from 20 Hz to 500 Hz, all
axes.
Notes Cond.
4 Initilization level; ESD event shall cause no out-of-regulation conditions.
5 The ‘Y’ suffix indicates that these parts are TSE RoHS 5/6 (non Pb-free)
compliant.
6 NOTICE: Some models do not support all options. Please contact your
local Artesyn representative or use the on-line model number search tool
at http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.
PIN CONNECTIONS
PIN NO. ROW A
1 12 Vin
2 12 Vin
ROW B
RTN
RTN
PIN NO.
50
49
3 12 Vin
RTN
48
4 12 Vin
5 12 Vin
6 Reserved
RTN
RTN
RTN
47
46
45
7 VSP
8 PWRGD Reserved
9 OUTEN
Ishare
10 Reserved Reserved
43
42
41
11 Vo-sense Vo-sense rtn 40
12 Vout
13 Vout
14 Vout
Return
Return
RTN
39
38
37
15 Vout
RTN
36
16 Vout
17 Vout
18 Vout
RTN
RTN
RTN
35
34
33
19 Vout
RTN
32
20 Vout
21 Vout
22 Vout
RTN
RTN
RTN
31
30
29
23 Vout
RTN
28
24 Vout
25 Vout
RTN
RTN
27
26
20
18
16
14
12 200 Lfm
10
8
6 100 Lfm
4 Zero Air
2
400 Lfm
300 Lfm
0 10 20 30 40 50 60 70 80 90 100
Ambient Temperature (°C)
0.588 (14.92)
2.750 (69.85)
HEATSINK
R0.080 (R2.03) (2 PLS)
ON CKT BOARD
0.875 (22.23)
1.375 (34.93)
1.065 (27.05)
1-25 26-50
50
1
0.125 (3.18)
34 33
17 18
2.586 (65.68)
0.700 (17.78)
26
25
26-50 1-25
0.400 (10.16)
ALL DIMENSIONS IN INCHES (mm)
(See Notes 1 and 2)
Datasheet © Artesyn Technologies® 2005
The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising
from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein.
Please consult our website for the following items:  Longform Datasheet
www.artesyn.com
File Name: nxa66.pdf Rev (02): 20 Dec 2005


Part Number NXA66-12P3V3CY
Description DC-DC / Non-Isolated Memory
Maker Emerson
Total Page 2 Pages
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