50 Watts Output Power
T
RIPLE
OUTPUT
•
•
•
•
•
•
•
•
NB50T
FEATURES
.38 Inch Profile
Synchronization
Remote Turn On (TTL)
Output Voltage Trim Pin
Over Temperature Protection
Built-In Test (Output Power Good)
Output Overvoltage/Overcurrent Protection
100% Environmental Screening (Military Version)
How to Order:
NB
Series
50
T
M / 5 / 15
- A - D
Options:
A- pins out side of unit
B- pins out bottom of unit
C- pins out top of unit
D- through hole inserts
(STD threaded)
I - M2.5 inserts
SELECTION CHART
Main Output
Current
Voltage
5
5
5.0A
5.0A
Auxiliary Output
Current
Voltage
±12
±15
1.04A
0.83A
Model
Number
NB50TI/5/12-A
NB50TI/5/15-A
Total Output Power
Triple Output
Industrial (I) or Military (M)
Main Output Voltage
Auxiliary Output Voltages
The above model number is for the Industrial grade power supply. For the
Military grade power supply replace the ‘I’ with ‘M’.
INPUT CHARACTERISTICS
Min.
Input Voltage
14
Brown Out (75% of Full Load)
[fig. I]*
No Load Power Dissipation
Inrush Charge
[fig. VII]*
Reflective Ripple Current
[fig. VIII]*
Logic Disable Current (Sink)
Logic Disable Power In
Input Ripple Rejection (120 Hz)
Input Ripple Rejection (800 Hz)
Efficiency (FL)
[fig. II & III]*
64
10
100
1.2
50
40
68
150
2.5
Typ.
28
12
3
5
2
Max.
40
Units
Vdc
Vdc
Watt
mc
%
µA
W
dB
dB
%
S
TABILITY
50 dB
180°
0 dB
0°
Phase
Gain
-50 dB
100HZ
1KhZ
10KH
-180°
100KHZ
EMI:
Units conform to MIL-STD-461D (on the input leads) with companion filter
FREQUENCY
INPUT CHARACTERISTICS
+5V Output
Min.
Set Point Accuracy
Load Regulation
Line Regulation
Ripple P-P (10 MHz)
[fig. IV]*
Trim Range
Remote Sense Compensation
Overvoltage Protection
100
0.5
Typ.
1
✝
0.1
0.1
50
Max.
2
0.5
0.5
125
110
0.3
0.2
50
Min.
Auxiliary Outputs
Typ.
Max.
1
1
1
150
Units
% V
out
% V
out
% V
out
mV
% V
out
Vdc
% V
out
200/30
500/50
200/30
0.05
0.02
150
75
105
25
1.0
1.0
0.02
0.01
125
0.05
0.02
150
75
µS/mV
µS/mV
µS/mV
%/°C
%/1KHrs
% I
out
% I
out
mS
mS
125
Transient Response (Vout 1%) Time/Overshoot
[fig. V & VI]*
20-80% Load
Low Line - High Line
50-100% Load
Temperature Drift
Long Term Drift
Current Limit
Short Circuit Current
Turn On Time
[fig. X, XI, XII]*
Logic Turn On Time
[fig. IX]*
✝
1% or 50mV, whichever is greater
* figures on page 22
350/200
500/350
300/150
0.01
0.01
105
25
1.0
1.0
125
All specifications are typical @+25°C with nominal input voltage under full output load conditions, unless otherwise noted. Specifications subject to change without notice.
Martek Power Abbott, Inc. 2727 S. La Cienega Blvd, Los Angeles, CA 90034 USA
(310) 202-8820
Fax: (310) 836-4926
http://www.martekpowerabbott.com
sales.mpa@martekpower.com
10
H
IGH
D
ENSITY
DC
TO
DC C
ONVERTERS
TEMPERATURE CHARACTERISTICS
Min.
Operating
Industrial Grade
Military Grade
Storage (Ambient)
Over Temperature Shutdown
Industrial Grade
Military Grade
Thermal Resistance Case - Ambient
+75
+105
11
°C
°C
°C/W
-40
-55
-55
+71
+100
+125
°C
°C
°C
Typ.
Max.
Units
Isolation:
Input to Output
Output to Base
Input to Base
Industrial & Military Grades
ISOLATION CHARACTERISTICS
Min.
500
250
250
0.022
50
Typ.
Units
Vdc
Vdc
Vdc
µf
MOhm
Input to Output Capacitance
Insulation Resistance (@50 Vdc)
MECHANICAL CHARACTERISTICS
MILITARY GRADE -
Environmental S creening
Weight
Size
Volume
Material
All “Mil” Grade units receive the following:
Stabilization Bake:
+125°C for 24 hours per Mil-Std-883, M1108,
Condition B
Temperature Cycling: 10 cycles at -55°C to +125°C (transition period 36
minutes) per Mil-Std-883, M1010, Condition B
Burn-in:
160 hours at +85°C min.
Final Testing
See “Guide to Operation” for full details
4.2
120
3.0 x 2.0 x 0.38
76.2 x 50.8 x 9.7
2.28
37.5
Pin
Baseplate
Case
Standard
I Option
D Option
oz.
grams
inch
mm
inch
3
cm
3
Brass (Solder Plating)
Aluminum 5052-H32
28 Gauge Steel (cold rolled)
Nickel Plating
4-40 inserts provided in baseplate
M2.5 metric inserts (4 places)
0.115 DIA thru holes (4 places)
Finish
Mounting
CASE DRAWINGS
2.875 / 73.03
.125 / 3.18
3.00 / 76.2
Inches / Millimeters
2.00 / 50.8
1.875 / 47.63
4-40 UNC-2B THRU 4 PLACES
+ AUX OUT
AUX COM
- AUX OUT
POWER GOOD
+S
+ MAIN OUT
MAIN RTN
7
8
9
10
11
12
13
14
1.875 / 47.63
1.625 / 41.28
1.450 / 36.83
1.275 / 32.39
1.100 / 27.94
.925 / 23.50
.750 / 19.05
.575 / 14.61
.400 / 10.16
.125 / 3.18
1.125 / 28.58
.975 / 24.77
.825 / 20.96
.675 / 17.15
.375 / 9.53
1
2
3
4
+ V IN
IN RTN
TTL
TRIM
SYNC
6
-S
.125 / 3.18
0
0
-C Option
.30 / 7.6
.50 / 12.7
MIN.
-A Option
marking surface
.38 / 9.7
.15 / 3.8
base plate
.50 / 12.7 MIN.
-A Option
-B Option
.040 DIA ± .005
Tolerances:
inches
-
x.xx
x.xxx
= ±0.03
= ±0.015
mm
-
x.x
x.xx
= ±0.8
= ±0.40
All specifications are typical @+25°C with nominal input voltage under full output load conditions, unless otherwise noted. Specifications subject to change without notice.
Martek Power Abbott, Inc. 2727 S. La Cienega Blvd, Los Angeles, CA 90034 USA
(310) 202-8820
Fax: (310) 836-4926
http://www.martekpowerabbott.com
sales.mpa@martekpower.com
11
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