MX1-4816715-2 datasheet, PDF - EEWORLD Datasheet

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MX1-4816715-2: DescriptionMultichip Packages 4kW Megapac; Categorysemiconductor Memory IC Multichip packaging; File Size896KB，30 Pages; ManufacturerVICOR; Websitehttp://www.vicorpower.com/

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USER GUIDE | UG:108

End of Life - Not Recommended for New Designs

3 Phase MegaPAC-EL

(Low Noise)

4kW MegaPAC-EL

(Low Noise)

AC-DC Switchers

September 2013

NRTL

Contents

Overview

of Product

Mechanical

Considerations

MegaPAC

Do’s and Don’ts

Technical Description

Configuring and

Reconfiguring

MegaPACs

ConverterPAC

Description

Part Numbering

Quick Install

Instructions

Mechanical Drawings

Interface Connections

Specifications

Current Share Boards

Low Leakage Version

Page

4kW MegaPAC

3 Phase MegaPAC

Overview

The 3 Phase MegaPAC - EL and 4kW MegaPAC - EL are field-configurable, single or

multiple output switchers, providing up to 2,000 W (3 Phase MegaPAC/EL- Low Noise)

to 4,000 W of output power (4kW MegaPAC/EL-Low Noise). The chassis has 10 slots

and provides up to 20 regulated, fully isolated outputs. It achieves power densities of

3.6 W per cubic inch (3 Phase MegaPAC/EL (Low Noise)) to 6.4 W per cubic inch (4kW

MegaPAC/EL (Low Noise). The dimensions for the 3 Phase MegaPAC/EL (Low Noise)

are 4.9"H x 7.5"W x 15.2"L (124,5mm x 190,5mm x 429,3mm) and the dimensions for

the 4kW MegaPAC/EL (Low Noise) are 4.9"H x 7.5"W x 16.9"L (124,5mm x 190,5mm x

386,1mm). The 4kW MegaPAC/EL (Low Noise) is longer than the 3 Phase MegaPAC/EL

(Low Noise) to accommodate a 2nd fan.

A complete power supply is configured by selecting and inserting up to ten same

length slide-in output assemblies called ConverterPACs. ConverterPACs incorporate

one or two VI-200/VI-J00 and/or MaxiVicor DC to DC converters and are available in

a wide selection of output voltage and power levels. The net result is a power supply

that offers the advantages of a custom supply, but is assembled from standard and

modular building blocks. For detailed information about all ConverterPACs, refer to

the ConverterPAC information sheets. The 4kW MegaPAC-EL (Low Noise) uses VI-200/

VI-J00 and Maxi Vicor DC to DC converters while the 3 Phase MegaPAC-EL (Low Noise)

uses VI-200/VI-J00 Vicor DC to DC converters.

Manufactured at Vicor, the entire family of MegaPAC power supplies is completely

user-configurable. If output requirements change, i.e., more power or a different

output voltage is needed, upgrading is easy: simply unlock a single screw and replace

the slide-in ConverterPAC with another Extended Length ConverterPAC that has the

desired voltage power rating. For additional flexibility, same length ConverterPACs

can be connected in parallel to increase output power (booster ConverterPACs), or in

series for higher voltages (total output voltage should not exceed 400 V). The driver is

to the left of the boosters when looking at the output end of the supply. A user-friendly

interface provides control and output sequencing capability, in addition to useful status

indicators. Please consult our Applications Engineering Department if you have other

special requirements.

UG:108

vicorpower.com

Applications Engineering: 800 927.9474

Page 1

Technical Description

The 3 Phase MegaPAC - EL and 4kW MegaPAC - EL are configured by installing same

length ConverterPAC assemblies into the chassis. The chassis takes AC input power and

performs filtering and rectification functions. The ConverterPACs plug into a high-

voltage backplane and provide low-noise, independently regulated and fully

isolated outputs.

Input AC mains voltage (L1, L2, L3 and GND) is applied to an agency approved mating

plug. The input current is passed through an EMI filter designed to meet EN 55022 Level

A before it is passed to a three-phase full-wave bridge rectifier. The rectifier charges

storage capacitors and delivers unregulated 300 Vdc to a backplane after passing

through a large choke that improves input power factor. The power factor typically

exceeds 0.9 depending upon load, line voltage, frequency and line balance. Inrush

current is actively controlled with an IGBT and never exceeds 30 A peak regardless of

hot or cold starts or input volatage.

A housekeeping supply, isolated from the AC input, powers the brushless DC cooling

fan and other input monitoring circuits, in addition to providing an auxiliary +5 V

power source for the user.

The 4kW MegaPAC - EL has a second fan for extra cooling.

Excessive input currents caused by loss of a phase or excessive output loading in single

phase operation will safely shut down the unit until input power is recycled. This occurs

when the peak input current reaches 30 A. An analog temperature monitor is provided,

as well as overtemperature shutdown. An active-high TTL compatible Enable control is

included for each ConverterPAC assembly, as well as an active-low General Shutdown

control; the polarities, active-high or active-low, are factory set. Two (or more) 3 Phase

MegaPAC - ELs can be safely paralleled with accurate current sharing for high power

systems. Two (or more) 4kW MegaPAC - ELs can be safely paralleled with accurate

current sharing for high power systems All interface signals are safety isolated using a

common floating return.

Upon power-up, all outputs are first disabled to limit the inrush current, and to allow

the unregulated bus to reach correct operating levels for ConverterPAC assemblies. The

internal housekeeping supply comes up within 500 ms after input power is applied, and

the AC Power OK signal asserts to a TTL "1," indicating the input power is OK. The low

voltage power outputs come up within 10-20 ms after the AC Power OK asserts to a

TTL "1." Output ramp-up time from Enable or General Shutdown is 10-20 ms.

Output fall time from Disable is dependent on load, but is typically a few hundred

microseconds.

Figure 1.

3 Phase MegaPAC - EL and

4kW MegaPAC - EL Architecture

Input

Power

IGBT PFC Choke

+P, -P

Output

Power

EN 55022

Level A

3 Phase

Full-Wave

Rectifier

Fuse

DC/DC

Converter

2nd Fan here

in the 4kW

MegaPAC-EL

Start-up Control

Circuits

J10

Customer

Interface

Isolated

Housekeeping

Power Supply

Remote Sense,

Trim Interface

Opto-isolated

Control/Status

DC Brushless

Cooling Fan

Power Good

Interface

QPAC ConverterPACs (Up to 10)

3 Phase/4kW MegaPAC/EL (Low Noise) Chassis

UG:108

vicorpower.com

Applications Engineering: 800 927.9474

Page 4

Configuring and Reconfiguring MegaPACs

Most ConverterPACs of the same length can be easily added, replaced, or moved

by sliding the assemblies in or out of a MegaPAC chassis. They are driver QPAC

ConverterPACs and can be inserted into any available slot. For outputs greater than

200 Watts, a driver QPAC and one or more booster QPACs will be used. For outputs

greater than 500 Watts, a driver QPAC (XQ) (in the 4kW MegaPAC - EL) and one or more

booster QPAC (XQs) will be used. Arrays of drivers and boosters should be configured so

all boosters are placed in the slots to the immediate right of the driver when looking at

the output end of the MegaPAC.

Prior to removing or installing ConverterPACs, you must remove power from the

MegaPAC and wait 5 minutes. Failure to do so can result in personal injury or

damage to the supply.

Take standard ESD precautions when handling ConverterPACs.

Removing QPAC ConverterPACs

ConverterPACs can be removed by loosening the captive screw at the base. Once

this screw has been loosened, the ConverterPAC will slide out of the chassis.

Once a

ConverterPAC has been removed, the empty slot MUST be filled with either another

ConverterPAC or an airblock.

If the slot is left empty, it will provide an airflow escape

and cause failure to the power supply.

Installing ConverterPACs as Drivers

ConverterPACs can be installed in empty slots by simply sliding in the new

ConverterPAC and securing the screw at the base.

Torque the retaining screw to 0.23N-m

(2lb-in); do not overtighten.Power

and interface connections can be made after the

ConverterPAC has been installed.

Installing Booster ConverterPACs to Increase Output Power

Most ConverterPACs of the same length can be paralleled for more power. Additional

power to an output is obtained by connecting one or more boosters in parallel with a

single driver. The driver can be placed in any open slot. All boosters should be inserted

in the slots to the immediate right of the driver, as viewed from the output end of the

MegaPAC. Figure 2 shows a driver placed in slots #1 and 3 boosters placed in slots # 2 to

4. After inserting the driver and boosters, they are paralleled using bus bars across the

positive and negative output studs. Drivers should not be paralleled with each other. For

the 3 Phase/4kW MegaPAC/ELs (Low Noise), all the driver and booster ConverterPACs

must consist of the Extended Length ConverterPACs. Bus bars between a driver and

booster (s) should never be disconnected. For help in identifying boosters and drivers,

refer to the section on Part Numbering on page 9. Please note that total output voltage

should not exceed the converter baseplate-output isolation rating of 400 V. For detailed

guideline on how outputs should be placed in series, please refer to the Applications

note available on the website at

www.vicorpower.com.

Figure 2.

Paralleling ConverterPACs

Bus Bars for Paralleling

Loosen screw to

remove ConverterPAC

Driver

Boosters: Slots 2, 3, 4

L1 L2 L3

UG:108

vicorpower.com

Applications Engineering: 800 927.9474

Page 5

MX1-4816715-2 Related Products

	MX1-4816715-2	MP10-41017068-2	L5V_40AB	MX1-4616323-2	MX1-4817476-2	LD7V_6A7ADZ60-001	MP5-41014834-2	MX4-4912591-G
Description	Multichip Packages 4kW Megapac	Multichip Packages 4kW Megapac	Multichip Packages L5V40AB ConverterPAC	Multichip Packages 4kW Megapac	Multichip Packages 4kW Megapac	Multichip Packages LD7V6.7ADZ607V6.7ADZ	Multichip Packages 4kW Megapac	Multichip Packages 4kW Megapac Std RoHS
Maker	VICOR	VICOR	VICOR	VICOR	VICOR	VICOR	VICOR	VICOR
Product Category	multi-chip package	multi-chip package	multi-chip package	multi-chip package	multi-chip package	multi-chip package	multi-chip package	multi-chip package

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