www.martekpower.com
NB50S
50 Watts Output Power
SINGLE OUTPUT
FEATURES
•
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.38 Inch Profile
Synchronization
N + 1 Redundancy
Remote Turn On (TTL)
Parallelable Operation
Output Voltage Trim Pin
Over Temperature Protection
Output Overvoltage/Overcurrent
Built-In Test (Output Power Good)
100% Environmental Screening (Military
Version)
How to Order:
N B 5 0 S M / 5 - A - D
Series
Options:
Output Voltage:
Maximum current
as stated in chart
A- pins out side of unit
B- pins out bottom of unit
C- pins out top of unit
D- through hole inserts
(STD threaded)
Total Output Power
Single Output
SELECTION CHART
Industrial (I) or Military (M)
I - M2.5 inserts
Nominal
Output
Current
(Amps)
10
Model
Model
Output
Number
Number
Voltage
2
(Industrial)
(Military)
NB50SI/2-A
NB50SI/3.3-A
NB50SI/5-A
NB50SI/5.2-A
NB50SI/12-A
NB50SI/15-A
NB50SI/24-A
NB50SI/28-A
NB50SM/2-A
NB50SM/3.3-A
NB50SM/5-A
NB50SM/5.2-A
NB50SM/12-A
NB50SM/15-A
NB50SM/24-A
NB50SM/28-A
3.3
5
10
10
INPUT CHARACTERISTICS
5.2
12
9.6
PER CHANNEL
4.2
15
3.3
Min.
14
Typ.
28
Max.
40
Units
Vdc
Vdc
Watt
mc
%
24
2.1
Input Voltage
28
1.8
Brown Out (75% of Full Load)
[fig. I]*
12
2
No Load Power Dissipation
Inrush Charge [fig. VII]*
4
2
OUTPUT CHARACTERISTICS
Reflective Ripple Current [fig. VIII]*
Logic Disable Current (Sink)
Logic Disable Power In
15
100
1.2
55
PER CHANNEL
150
2.5
μA
Min.
Typ.
Max.
Units
W
✝
Set Point Accuracy
Load Regulation
Line Regulation
out
1
% V
Input Ripple Rejection (120 Hz)
Input Ripple Rejection (800 Hz)
Efficiency up to
dB
5
5
0.2%1
0.2%1
150
mV
mV
mV
45
dB
83
%
Ripple P-P (10 MHz) (2V-24V) [fig. IV]*
Ripple P-P (10 MHz) (28V)
45
See Page 21 [fig. II, III]*
out
0.2%
% V
% V
1%
110
0.5
EMI: Units conform to MIL-STD-461D (on the input leads) with companion filter
Trim Range
out
100
Input Transient: Units conform to MIL-STD-704D for transients up to 50V for 0.1 second
Remote Sense Compensation
Vdc
Overvoltage Protection (2V, 3.3V)
Overvoltage Protection (5V-28V)
Current Sharing
out
140
125
±10
% V
% V
out
STABILITY
out
% I
50 dB
180°
Transient Response (Vout 1%) Time/Overshoot [fig.V & VI]*
20-80% Load
350/300
300/350
250/300
0.01
μS/mV
μS/mV
μS/mV
%/°C
Low Line - High Line
50-100% Load
Temperature Drift
0.05
0.02
150
75
0 dB
0°
Long Term Drift
Current Limit
0.01
%/1KHrs
out
105
25
125
% I
% I
Short Circuit Current
Turn On Time [fig. XI]*
Logic Turn On Time [fig. IX]*
✝
out
Phase
Gain
1.5
1.5
mS
mS
-50 dB
100HZ
-180°
1% or 50mV, whichever is greater
.2% or 25 mV, whichever is greater
1KhZ
10KH
100KHZ
1
FREQUENCY
* figures on page 21
All specifications are typical @+25°C with nominal input voltage under full output load conditions, unless otherwise noted. Specifications subject to change without notice.
>> 8
1111 Knox Street Torrance CA 90502 USA Tel: +1 310 202 8820 sales@martekpower.com