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NBM3814B46C15A6T04 Datasheet(PDF) 1 Page - Vicor Corporation

Part # NBM3814B46C15A6T04
Description  Non-Isolated, Fixed-Ratio DC-DC Converter
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Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

NBM3814B46C15A6T04 Datasheet(HTML) 1 Page - Vicor Corporation

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NBMin a VIA Package
Rev 1.1
vicorpower.com
Page 1 of 23
05/2016
800 927.9474
NBMin a VIA Package
Bus Converter
Non-Isolated, Fixed-Ratio DC-DC Converter
NBM3814x46C15A6yzz
Features & Benefits
Up to 160A continuous low voltage side current
Fixed transformation ratio(K) of 1/3
Up to 1258 W/in3 power density
97.9% peak efficiency
Bidirectional operation capability
Integrated ceramic capacitance filtering
Parallel operation for multi-kW arrays
OV, OC, UV, short circuit and thermal protection
3814 package
High MTBF
Thermally enhanced VIA™ package
Typical Applications
DC Power Distribution
Information and Communication
Technology (ICT) Equipment
High End Computing Systems
Automated Test Equipment
Industrial Systems
High Density
Energy Systems
Transportation
Product Description
The NBM in a VIA package is a high efficiency Bus Converter,
operating from a 36 to 46VDC high voltage bus to deliver a non-
isolated 12 to 15.3VDC unregulated, low voltage.
This unique ultra-low profile module incorporates DC-DC
conversion, integrated filtering in a chassis or PCB mount
form factor.
The NBM offers low noise, fast transient response and industry
leading efficiency and power density.
Leveraging the thermal and density benefits of Vicor’s VIA
packaging technology, the NBM module offers flexible thermal
management options with very low top and bottom side thermal
impedances.
When combined with downstream Vicor DC-DC conversion
components and regulators, the NBM allows the Power Design
Engineer to employ a simple, low-profile design which will
differentiate the end system without compromising on cost or
performance metrics.
The NBM non-isolated topology allows start up and steady
state operation in forward and reverse directions. It provides
bidirectional protections. However if power train is disabled by any
protection, and VLO is present, then voltage equal to VLO minus two
diode drops will appear on high voltage side.
Size:
3.76 x 1.40 x 0.37 in
95.59 x 35.54 x 9.40 mm
Part Ordering Information
Product Ratings
VHI = 42V (36 – 46V)
ILO = up to 160A
VLO = 14V (12 – 15.3V)
(no load)
K = 1/3
[1] High Temperature Current Derating may apply; See Figure 1, specified thermal operating area.
Product
Function
Package
Length
Package
Width
Package
Type
Max
High
Side
Voltage
High
Side
Voltage
Range
Ratio
Max
Low
Side
Voltage
Max
Low
Side
Current
Product Grade
(Case Temperature)
Option Field
NBM
38
14
x
46
C
15
A6
y
zz
NBM =
Non-Isolated
Bus Converter
Module
Length in
Inches x 10
Width in
Inches x 10
B = Board VIA
V = Chassis VIA
Internal Reference
C = -20 to 100°C[1]
T = -40 to 100°C[1]
00 = Chassis/Always On
04 = Short Pin/Always On
08 = Long Pin/Always On


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