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Design Guide & Applications Manual

Maxi, Mini, Micro Family DC-DC Converters and Configurable Power Supplies

Maxi, Mini, Micro Design Guide 

Rev 5.0

Page 3 of 87 

03/2018

1. High-Density DC-DC Converter Technology

AC-DC Products

DC-DC Products

Universal
85 – 264V

AC

Autoranging
90 – 132V

AC

180 – 264V

AC

Autoranging
90 – 132V

AC

180 – 264V

AC

Autoranging
115 – 230V

AC

Input

Nominal Input

18 – 425V

DC

28V

DC

, 48V

DC

,

270V

DC

24V

DC

, 28V

DC

,

48V

DC

Harmonic Attenuator Module 

Unity Power Factor
Up to 675W

per module

Filter / Autoranging Rectifier Module
Up to 1,000W

Autoranging Rectifier Module
Up to 1,500W

Front-end System 

for EN Compliance
Up to 550W

Transient Protection, 

Inrush Current Limiting EMI Filter
Up to 25A

Active EMI Filter
Up to 576W @ 48V

DC-DC Converter

Up to 600W per module

1 – 54V

dc

MINIHAM

FARM3

QPI

DC-DC Converter

Up to 300W per module

1 – 48V

DC

DC-DC Converter

Up to 150W per module

1 – 48V

DC

Single wire paralleling for

high power, fault tolerant arrays.

Output Ripple Attenuation Module

combines active and passive filtering.

QPO provides active filtering to 

achieve differential noise attenuation.

QPO

DC-DC Products

High Boost

HAM

The Maxi, Mini, Micro Family of DC-DC converters are an integral 
part of the company’s overall component power solution 
strategy (Figure 1.1), which includes advanced factory and design 
automation. The modules are available in an unlimited variety of 
standard versions, to the extent that the line between custom and 
standard DC-DC converter bricks becomes almost indistinguishable.

The design of the control, magnetic, switching and packaging 
elements of the module resulted in a component with a power 
density of up to 120W/in

3

 (7,3W/cm

3

) in three package sizes:

Maxi

  4.6 x 2.2 x 0.5in [117 x 55,9 x 12,7mm] 

Mini

  2.28 x 2.2 x 0.5in [57,9 x 55,9 x 12,7mm] 

Micro

  2.28 x 1.45 x 0.5in [57,9 x 36,8 x 12,7mm]

The modules have one-third the number of parts of 
their predecessors. 

While the natural by-products of this reduction in parts count has 
improved reliability and lower cost. The extra space also means that 
the bulk of the converter can now be devoted almost exclusively to 
the power train (i.e., the magnetic and switching elements at the 
core of the design).

Resistors can be used to trim the output voltage up or down, if 
necessary. Six pin styles, three baseplate options and a variety of 
data collection and reporting options are available. The devices 
have an operating temperature range of –55 to 100°C and come in 
five product grades – E, C, T, H and M.

Other specifications include a typical no-load to full-load regulation 
of ±0.5%, a programmable output of 10 – 110%, conversion 
efficiencies of up to 92% depending on the voltage combination 
and power level chosen, and an input-to-output isolation test 
voltage of 3,000V

RMS

 [4,242V

DC

]. All models are parallelable with 

N+M fault tolerance and current sharing. Paralleling architectures 
feature DC- or AC-coupled interface.

Figure 1.1 —

 Component power solutions with the Maxi, Mini, Micro Family

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