QRW025A0F1 datasheet(18/27 Pages) LINEAGEPOWER

부품명	QRW025A0F1

상세설명	36 Vdc - 75 Vdc Input, 1.2 to 3.3 Vdc Output; 25A

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제조업체	LINEAGEPOWER [Lineage Power Corporation]

홈페이지	http://www.lineagepower.com

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18 / 27 page

Lineage Power

18

Data Sheet

March 27, 2008

36 Vdc - 75 Vdc Input, 1.2 to 3.3 Vdc Output; 25A

QRW025 Series Power Modules; dc-dc Converters

Test Configurations

Note:Measure input reflected-ripple current with a simulated

source inductance (LTEST) of 12 µH. Capacitor CS off-

sets possible battery impedance. Measure current as

shown above.

Figure 31. Input Reflected-Ripple Test Setup.

Note:Use a 1.0 µF ceramic capacitor and a 10 µF aluminum

or tantalum capacitor. Scope measurement should be

made using a BNC socket. Position the load between

51 mm and 76 mm (2 in. and 3 in.) from the module.

Figure 32. Peak-to-Peak Output Noise Measurement Test

Setup.

Note:All measurements are taken at the module terminals.

When socketing, place Kelvin connections at module

terminals to avoid measurement errors due to socket

contact resistance.

Figure 33. Output Voltage and Efficiency Measurement.

Design Considerations

Input Source Impedance

The power module should be connected to a low

ac-impedance input source. Highly inductive source imped-

ances can affect the stability of the power

module. For the test configuration in 31,

a 33 µF electrolytic capacitor (ESR < 0.7 W at 100 kHz)

mounted close to the power module helps ensure

stability of the unit. For other highly inductive source imped-

ances, consult the factory for further application guidelines.

Output Capacitance

High output current transient rate of change (high di/dt) loads

may require high values of output capacitance to supply the

instantaneous energy requirement to the load. Tp minimize

the output voltage transient drop

during this transient, low E.S.R. (equivalent series resistance)

capacitors may be required, since a high E.S.R. will produce

a correspondingly higher voltage drop during the current tran-

sient.

Output capacitance and load impedance interact with the

power module’s output voltage regulation control system and

may produce an ’unstable’ output condition for the required

values of capacitance and E.S.R.. Minimum and maximum

values of output capacitance and of the capacitor’s associ-

ated E.S.R. may be dictated, depending on the module’s con-

trol system.

The process of determining the acceptable values of capaci-

tance and E.S.R. is complex and is load-dependant. Lineage

provides Web-based tools to assist the power module end-

user in appraising and adjusting the effect of various load

conditions and output capacitances on specific power mod-

ules for various load conditions.

Safety Considerations

For safety-agency approval of the system in which the power

module is used, the power module must be installed in com-

pliance with the spacing and separation requirements of the

end-use safety agency standard, i.e., UL60950, CSA C22.2

No. 60950-00, and VDE 0805:2001-12 (IEC60950, 3rd Ed).

These converters have been evaluated to the spacing

requirements for Basic Insulation, per the above safety stan-

dards; and 1500 Vdc is applied from VI to VO to 100% of out-

going production.

For end products connected to –48 Vdc, or –60 Vdc nomianl

DC MAINS (i.e. central office dc battery plant), no further fault

testing is required.

Note:–60 V dc nominal bettery plants are not available in the

U.S. or Canada.

For all input voltages, other than DC MAINS, where the input

voltage is less than 60 Vdc, if the input meets all of the

requirements for SELV, then:

n

The output may be considered SELV. Output voltages will

VI(+)

VI(–)

CURRENT

PROBE

TO

OSCILLOSCOPE

LTEST

12

μH

BATTERY

CS 220

μF

ESR < 0.1

Ω

@ 20 ºC 100 kHz

COPPER STRIPS

1.0

μF

10

μF SCOPE

VO(+)

RESISTIVE

VO(-)

LOAD

CONTACT AND

SUPPLY

II

CONTACT

VI(+)

VI(–)

VO(+)

DISTRIBUTION LOSSES

RESISTANCE

IO

LOAD

VO(–)

SENSE(–)

SENSE(+)

η

V

O(+)

V

O(-)

–

[]I

O

V

I(+)

V

I(-)

–

[]I

I

----------------------------------------------

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유사한 부품 번호 - QRW025A0F1

제조업체	부품명	데이터시트	상세설명
Tyco Electronics	QRW025A0A1	233Kb / 2P	QRW 40A single output series
Lineage Power Corporati...	QRW025A0A1	961Kb / 36P	36 Vdc - 75 Vdc Input, 1.0 to 12 Vdc Output; 10 A to 40 A
	QRW025A0A1Z	961Kb / 36P	36 Vdc - 75 Vdc Input, 1.0 to 12 Vdc Output; 10 A to 40 A
	QRW025A0A641	961Kb / 36P	36 Vdc - 75 Vdc Input, 1.0 to 12 Vdc Output; 10 A to 40 A

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제조업체	부품명	데이터시트	상세설명
Bel Fuse Inc.	SQE48T50012	1Mb / 13P	36-75 VDC Input; 1.2 VDC @ 50 A Output
Lineage Power Corporati...	HW012A0P1	516Kb / 23P	36-75 Vdc Input; 1.2 Vdc to 5 Vdc Output; 6.6A to 12A
Lineage Power Corporati...	JBW050F1	349Kb / 16P	36 to 75 Vdc Input, 3.3 Vdc Output; 33 W
Bel Fuse Inc.	SSQE48T10033	1Mb / 13P	36-75 VDC Input; 3.3 VDC @ 10 A Output
Lineage Power Corporati...	QW020A0P1	425Kb / 24P	36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A
Lineage Power Corporati...	JQW013A0AZ	287Kb / 15P	36 to 75 Vdc Input; Single Output up to 25A
Bel Fuse Inc.	SSQE48T15033	1Mb / 13P	36-75 VDC Input; 3.3 VDC @ 15 A, 50 W Output
Lineage Power Corporati...	JBW050A1	294Kb / 16P	36 to 75 Vdc Input, 5 Vdc Output; 50 W
Bel Fuse Inc.	QM48T45	2Mb / 35P	36-75 VDC Input; 1.0 - 3.3 VDC @ 45 A Output (150 W)
Lineage Power Corporati...	JBW030F	298Kb / 16P	36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W

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