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QW030A1

型号：

QW030A1

描述：

模拟IC\n[ Analog IC ]

品牌：

ETC[ ETC ]

页数：

16 页

PDF大小：

369 K

下载PDF手册

Advance Data Sheet

September 2000

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Features

■ Small size: 36.8 mm x 57.9 mm x 12.7 mm

(1.45 in. x 2.28 in. x 0.50 in.)

■ High power density

■ High efﬁciency: 86% typical

■ Low output noise

■ Constant frequency

■ Industry-standard pinout

■ Metal case

■ 2:1 input voltage range

■ Overvoltage and overcurrent protection

■ Remote on/off

The QC/QW030-Series Power Modules use advanced, sur-

face-mount technology and deliver high-quality, efﬁcient, and

compact dc-dc conversion.

■ Remote sense

■ Adjustable output voltage

■ ISO* 9001 and ISO14001 Certiﬁed manufacturing

facilities

Applications

■ UL^†1950 Recognized, CSA^‡C22.2 No. 950-95

■ Distributed power architectures

■ Workstations

Certiﬁed, VDE^§0805 (EN60950, IEC950) Licensed

■ CE mark meets 73/23/EEC and 93/68/EEC

directives**

■ Computer equipment

■ Communications equipment

■ Optical transport equipment

* ISO is a registered trademark of the International Organization

for Standardization.

† UL is a registered trademark of Underwriters Laboratories, Inc.

‡ CSA is a registered trademark of Canadian Standards Assn.

§ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.

**This product is intended for integration into end-use equipment.

All the required procedures for CE marking of end-use equip-

ment should be followed. (The CE mark is placed on selected

products.)

Options

■ Heat sinks available for extended operation

■ Choice of remote on/off logic conﬁgurations

■ Choice of two pin lengths

Description

The QC/QW030-Series Power Modules are dc-dc converters that operate over an input voltage range of

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc and provide a precisely regulated dc output. The outputs are fully

isolated from the inputs, allowing versatile polarity conﬁgurations and grounding connections. The modules

have maximum power ratings of 30 W at a typical full-load efﬁciency of up to 86%.

These encapsulated modules offer a metal case for optimum thermal performance. Threaded-through holes are

provided to allow easy mounting or addition of a heat sink for high-temperature applications.The standard feature

set includes remote sensing, output trim, and remote on/off for convenient ﬂexibility in distributed power

applications.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are

absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in

excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for

extended periods can adversely affect device reliability.

Parameter

Device

Symbol

Min

Max

Unit

Input Voltage:

Continuous

QC030x

QW030x

V^I

VI, trans

—

100

Vdc

Transient (100 ms)

Operating Case Temperature

All

T^C

–40

105*

°C

(See Thermal Considerations section.)

Storage Temperature

I/O Isolation Voltage

All

Tstg

–55

—

125

°C

—

1500

Vdc

* Maximum case temperature varies based on power dissipation. See power derating curves for details.

Electrical Speciﬁcations

Unless otherwise indicated, speciﬁcations apply over all operating input voltage, resistive load, and temperature

conditions.

Table 1. Input Speciﬁcations

Parameter

Operating Input Voltage:

Device Symbol

Min

Typ

Max

Unit

QC030x

QW030x

All

V^I

Vdc

Maximum Input Current

(V^I= 0 V to 75 V; I^O= I^{O, max}):

QC030x

All

I^{I, max}

—

3.5^†

1.7^†

2.2^†

QW030x (V^O≤ 5 V)

QW030x (V^O> 5 V)

Inrush Transient

All

i²t

—

5^†

0.2^†

A²s

Input Reﬂected-ripple Current, Peak-to-peak

(5 Hz to 20 MHz, 12 µH source impedance;

see Test Conﬁgurations section.)

I^I

—

mAp-p

Input Ripple Rejection (120 Hz)

All

—

50^†

—

† Engineering estimate.

Fusing Considerations

CAUTION:This power module is not internally fused. An input line fuse must always be used.

This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone

operation to an integrated part of a sophisticated power architecture. To preserve maximum ﬂexibility, internal

fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse.

The safety agencies require a normal-blow fuse with a maximum rating of 5 A (see Safety Considerations section).

Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same

type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data for further information.

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Electrical Speciﬁcations (continued)

Table 2. Output Speciﬁcations

Device

Sufﬁx

Parameter

Symbol

Min

Typ

Max

Unit

Output Voltage Set Point

(V^I= 48 V; I^O= I^{O, max}; T^C= 25 °C)

V^{O, set}

VO, set

3.23

4.92

11.80

14.55

3.3

5.0

—

3.37

5.12

12.30

15.48

Vdc

—

Output Voltage

V^O

3.18

4.86

11.60

14.25

—

3.42

5.18

12.45

15.75

Vdc

(Over all operating input voltage, resistive

load, and temperature conditions until end of

life. See Test Conﬁgurations section.)

Output Regulation:

Line (V^I= 36 V to 75 V)

A, F

B, C

A, F

—

Load (I^O= I^{O, min}to I^{O, max})

Temperature (T^C= –30 °C to +100 °C)

Output Ripple and Noise Voltage

(See Test Conﬁgurations section.):

Measured across one 4.7 µF ceramic

capacitor:

RMS

—

mVrms

mVp-p

Peak-to-peak (5 Hz to 20 MHz)

Measured across one 2.2 µF ceramic

capacitor:

RMS

B, C

—

mVrms

mVp-p

Peak-to-peak (5 Hz to 20 MHz)

External Load Capacitance

A, F

B, C

—

1000*

470

µF

Output Current

(At I^O< I^{O, min}, the modules may exceed output

ripple speciﬁcations.)

I^O

0.45*

0.30*

0.26*

—

6.50

6.00

3.00

2.66

Output Current-limit Inception

(V^O= 90% of V^{O, set})

I^O

—

7.5

7.0

3.7

3.3

—

Output Short-circuit Current (V^O= 0.25 V)

I^O

—

11.5

9.5

5.5

4.5

—

* Engineering estimate.

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Electrical Speciﬁcations (continued)

Table 2. Output Speciﬁcations (continued)

Device

Sufﬁx

Parameter

Symbol

Min

Typ

Max

Unit

Efﬁciency (V^I= 48 V; I^O= I^{O, max}; T^C= 25 °C)

B, C

—

Switching Frequency

All

—

300

—

kHz

Dynamic Response

(∆IO/∆t = 1 A/10 µs, VI = 48 V, TC = 25 °C):

Load Change from IO = 50% to 75% of IO, max:

Peak Deviation

A, C, F

—

2.0

2.5

5.0

3.0

—

%VO, set

Settling Time (VO < 10% of peak deviation) B, C, F

Load Change from IO = 50% to 25% of IO, max:

Peak Deviation

A, C, F

—

2.0

2.5

5.0

3.0

—

%VO, set

Settling Time (VO < 10% of peak deviation) B, C, F

* Engineering estimate.

Table 3. Isolation Speciﬁcations

Parameter

Isolation Capacitance (engineering estimate)

Isolation Resistance

Device

All

Min

—

Typ

600

—

Max

Unit

—

All

MΩ

Table 4. General Speciﬁcations

Parameter

Device

Min

Typ

Max

Unit

Calculated MTBF

All

5,000,000

hours

(IO = 80% of IO, max; TC = 40 °C)

Weight

All

—

75 (2.7)

g (oz.)

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Feature Speciﬁcations

Unless otherwise indicated, speciﬁcations apply over all operating input voltage, resistive load, and temperature

conditions. See Feature Descriptions section of this data sheet for additional information.

Device

Sufﬁx

Parameter

Symbol

Min

Typ

Max

Unit

Remote On/Off Signal Interface

(VI = VI, min to VI, max; open collector or equivalent

compatible; signal referenced to VI(–) terminal.):

Negative Logic: Device Code Sufﬁx “1”:

Logic Low—Module On

Logic High—Module Off

Positive Logic: If Device Code Sufﬁx “1” Is Not

Speciﬁed:

Logic Low—Module Off

Logic High—Module On

Module Speciﬁcations:

On/Off Current—Logic Low

On/Off Voltage:

All

Ion/off

—

1.0

Logic Low

Logic High (Ion/off = 0 mA)

All

Von/off

–0.7

—

1.2

Open Collector Switch Speciﬁcations:

Leakage Current During Logic High

(Von/off = 15 V)

All

Ion/off

—

µA

Output Low Voltage During Logic Low

(Ion/off = 1 mA)

Von/off

1.2

Turn-on Delay and Rise Times

(at 80% of IO, max; TA = 25 °C):

Case 1: On/Off Input Is Set for Logic High and

then Input Power Is Applied (delay from point

at which VI = VI, min until VO = 10% of VO, nom).

Case 2: Input Power Is Applied for at Least One

Second, and Then the On/Off Input Is Set to

Logic High (delay from point at which Von/off =

0.9 V until VO = 10% of VO, nom).

All

Tdelay

—

Output Voltage Rise Time (time for VO to rise

from 10% of VO, nom to 90% of VO, nom)

Output Voltage Overshoot (at 80% of IO, max;

TA = 25 °C)

All

Trise

—

Output Voltage Adjustment

(See Feature Descriptions section.):

Output Voltage Remote-sense Range

Output Voltage Set-point Adjustment Range

(trim)

All

A, F

B, C

—

0.5

110

%VO, nom

Output Overvoltage Protection (clamp)

VO, ovp

3.8*

5.5*

13.2*

16.5*

—

4.9*

7.0*

21.0*

24.0*

* Engineering estimate.

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Feature Speciﬁcations (continued)

Device

Sufﬁx

Parameter

Symbol

Min

Typ

Max

Unit

Overtemperature Protection

(VI = 75 V, see Figure 8.):

IO = 6.5 A

Tcase

—

105

110

—

°C

IO = 6 A

IO = 3 A

IO = 2.66 A

Undervoltage Lockout:

QC030x

All

—

QW030x

* Engineering estimate.

Test Conﬁgurations

SENSE(+)

CONTACT AND

DISTRIBUTION LOSSES

(+)

(–)

VO(+)

TO OSCILLOSCOPE

CURRENT

PROBE

LTEST

LOAD

SUPPLY

VI(+)

12 µH

S 220 µF

VO(–)

CONTACT

RESISTANCE

ESR < 0.1 Ω

@ 20 °C, 100 kHz

33 µF

ESR < 0.7 Ω

@ 100 kHz

BATTERY

SENSE(–)

8-749(C)

(–)

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.

8-203(C).l

Note: Measure input reﬂected-ripple current with a simulated source

inductance (LTEST) of 12 µH. Capacitor CS offsets possible bat-

tery impedance. Measure current as shown above.

[VO(+) – VO(–)]IO

[VI(+) – VI(–)]II

η =

× 100 %

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

Figure 1. QC/QW030-Series Input Reﬂected-Ripple

Test Setup

Figure 3. QC/QW030-Series Output Voltage and

Efﬁciency Measurement Test Setup

COPPER STRIP

Design Considerations

Grounding Considerations

(+)

(–)

RESISTIVE

LOAD

SEE NOTE

SCOPE

For the QC modules, the case is internally connected

to the VI(–) pin. For the QW modules, the case is inter-

nally connected to the VI(+) pin.

8-513(C).s

Note: Use the capacitor(s) referenced in the Output Ripple and Noise

Voltage speciﬁcations in the Output Speciﬁcations table. 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 2. QC/QW030-Series Peak-to-Peak Output

Noise Measurement Test Setup

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

■ Another SELV reliability test is conducted on the

whole system, as required by the safety agencies, on

the combination of supply source and the subject

module to verify that under a single fault, hazardous

voltages do not appear at the module’s output.

Design Considerations (continued)

Input Source Impedance

The power module should be connected to a low

ac-impedance input source. Highly inductive source

impedances can affect the stability of the power mod-

ule. If the input source inductance exceeds 4 µH, a

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

mounted close to the power module helps ensure sta-

bility of the unit.

Note: Do not ground either of the input pins of the

module without grounding one of the output pins.

This may allow a non-SELV voltage to appear

between the output pin and ground.

The power module has extra-low voltage (ELV) outputs

when all inputs are ELV.

The input to these units is to be provided with a maxi-

mum 5 A normal-blow fuse in the ungrounded lead.

Safety Considerations

QC Modules

Feature Descriptions

Overcurrent Protection

For safety-agency approval of the system in which the

power module is used, the power module must be

installed in compliance with the spacing and separation

requirements of the end-use safety agency standard,

i.e., UL 1950, CSA C22.2 No. 950-95, and VDE 0805

(EN60950, IEC950).

To provide protection in a fault (output overload) condi-

tion, the unit is equipped with internal current-limiting

circuitry and can endure current limiting for an unlim-

ited duration. At the point of current-limit inception, the

unit shifts from voltage control to current control. If the

output voltage is pulled very low during a severe fault,

the current-limit circuit can exhibit either foldback or

tailout characteristics (output-current decrease or

increase). The unit operates normally once the output

current is brought back into its speciﬁed range.

For the converter output to be considered meeting the

requirements of safety extra-low voltage (SELV), the

input must meet SELV requirements.

The power module has extra-low voltage (ELV) outputs

when all inputs are ELV.

The input to these units is to be provided with a maxi-

mum 5 A normal-blow fuse in the ungrounded lead.

Remote On/Off

QW Modules

Two remote on/off options are available. Positive logic

remote on/off turns the module on during a logic-high

voltage on the remote ON/OFF pin, and off during a

logic low. Negative logic remote on/off, device code suf-

ﬁx “1,” turns the module off during logic-high voltage

and on during a logic low.

For safety-agency approval of the system in which the

power module is used, the power module must be

installed in compliance with the spacing and separation

requirements of the end-use safety agency standard,

i.e., UL1950, CSA C22.2 No. 950-95, and VDE 0805

(EN60950, IEC950).

To turn the power module on and off, the user must

supply a switch to control the voltage between the

on/off terminal and the VI(–) terminal (Von/off). The

switch may be an open collector or equivalent (see

Figure 4). A logic low is Von/off = –0.7 V to 1.2 V. The

maximum Ion/off during a logic low is 1 mA. The switch

should maintain a logic-low voltage while sinking 1 mA.

If the input source is non-SELV (ELV or a hazardous

voltage greater than 60 Vdc and less than or equal to

75 Vdc), for the module’s output to be considered meet-

ing the requirements of safety extra-low voltage

(SELV), all of the following must be true:

■ The input source is to be provided with reinforced

insulation from any hazardous voltages, including the

ac mains.

During a logic high, the maximum Von/off generated by

the power module is 15 V. The maximum allowable

leakage current of the switch at Von/off = 15 V is 50 µA.

■ One VI pin and one VO pin are to be grounded, or

both the input and output pins are to be kept ﬂoating.

■ The input pins of the module are not operator acces-

sible.

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

The amount of power delivered by the module is

Feature Descriptions (continued)

Remote On/Off (continued)

deﬁned as the voltage at the output terminals multiplied

by the output current. When using remote sense and

trim, the output voltage of the module can be

increased, which at the same output current would

increase the power output of the module. Care should

be taken to ensure that the maximum output power of

the module remains at or below the maximum rated

power.

If not using the remote on/off feature, do one of the

following:

For positive logic, leave the ON/OFF pin open.

For negative logic, short the ON/OFF pin to VI(–).

VI(+)

VI(–)

SENSE(+)

SENSE(–)

–

(+)

(–)

(+)

(–)

Von/off

SUPPLY

LOAD

REMOTE

ON/OFF

CONTACT

RESISTANCE

CONTACT AND

DISTRIBUTION LOSSES

Ion/off

8-651(C).m

Figure 5. QC/QW030-Series Effective Circuit

Conﬁguration for Single-Module Remote-

Sense Operation

8-758(C).a

Figure 4. QC/QW030-Series Remote On/Off

Implementation

Output Voltage Set-Point Adjustment

(Trim)

Remote Sense

Output voltage trim allows the user to increase or

decrease the output voltage set point of a module.This

is accomplished by connecting an external resistor

between the TRIM pin and either the SENSE(+) or

SENSE(–) pins. The trim resistor should be positioned

close to the module.

Remote sense minimizes the effects of distribution

losses by regulating the voltage at the remote-sense

connections. The voltage between the remote-sense

pins and the output terminals must not exceed the out-

put voltage sense range given in the Feature Speciﬁca-

tions table, e.g., on the QW030A:

If not using the trim feature, leave the TRIM pin open.

[VO(+) – VO(–)] – [SENSE(+) – SENSE(–)] ≤ 0.5 V

With an external resistor between the TRIM and

SENSE(+) pins (R^adj-down), the output voltage set point

(VO, adj) decreases (see Figure 6). The following equa-

tion determines the required external-resistor value to

obtain a change in output voltage from VO, nom to VO, adj.

The values of G, H, and L are shown in Table 5.

The voltage between the VO(+) and VO(–) terminals

must not exceed the minimum output overvoltage pro-

tection value shown in the Feature Speciﬁcations table.

This limit includes any increase in voltage due to

remote-sense compensation and output voltage set-

point adjustment (trim). See Figure 5.

(VO, adj – L)G

(VO, nom – VO, adj

If not using the remote-sense feature to regulate the

output at the point of load, then connect SENSE(+) to

VO(+) and SENSE(–) to VO(–) at the module.

Radj-down

– H Ω

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

)

Although the output voltage can be increased by both

the remote sense and by the trim, the maximum

increase for the output voltage is not the sum of both.

The maximum increase is the larger of either the

remote sense or the trim. Consult your Lucent Technol-

ogies Account Manager or Application Engineer if you

need to increase the output voltage more than the

above limitation.

The QC/QW030 modules have a ﬁxed current-limit set

point. As the output voltage is adjusted down, the avail-

able output power is reduced.

With an external resistor connected between the TRIM

and SENSE(–) pins (Radj-up), the output voltage set

point (VO, adj) increases (see Figure 7).

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Feature Descriptions (continued)

(+)

VO(+)

Output Voltage Set-Point Adjustment

ON/OFF SENSE(+)

(Trim) (continued)

adj-down

RLOAD

CASE

(–)

TRIM

The following equation determines the required exter-

nal-resistor value to obtain a change in output voltage

from VO, nom to VO, adj. The values of G, H, K, and L are

shown in Table 5.

SENSE(–)

VO(–)

8-715(C).i

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

Figure 6. QC/QW030-Series Circuit Conﬁguration

to Decrease Output Voltage

Radj-up

– H Ω

[(V^{O, adj}– L) – K]

Table 5. Values for Trim Equations

Device

(+)

VO(+)

Vo, nom

Sufﬁx

ON/OFF SENSE(+)

3.3

5110

3010

2.06

2.5

1.24

2.5

CASE

(–)

TRIM

RLOAD

Radj-up

SENSE(–)

10,000 3010

9.5

12.5

VO(–)

8-748(C).f

The voltage between the VO(+) and VO(–) terminals

must not exceed the minimum output overvoltage pro-

tection value shown in the Feature Speciﬁcations table.

This limit includes any increase in voltage due to

remote-sense compensation and output voltage set-

point adjustment (trim). See Figure 5.

Figure 7. QC/QW030-Series Circuit Conﬁguration

to Increase Output Voltage

Output Overvoltage Protection

Although the output voltage can be increased by both

the remote sense and by the trim, the maximum

increase for the output voltage is not the sum of both.

The maximum increase is the larger of either the

remote sense or the trim. Consult your Lucent Technol-

ogies Account Manager or Application Engineer if the

output voltage needs to be increased more than the

above limitation.

The output overvoltage clamp consists of control

circuitry, independent of the primary regulation loop,

that monitors the voltage on the output terminals. This

control loop has a higher voltage set point than the

primary loop (see the Feature Speciﬁcations table). In

a fault condition, the overvoltage clamp ensures that

the output voltage does not exceed VO, clamp, max. This

provides a redundant voltage-control that reduces the

risk of output overvoltage.

The amount of power delivered by the module is

deﬁned as the voltage at the output terminals multiplied

by the output current. When using remote sense and

trim, the output voltage of the module can be

increased, which at the same output current would

increase the power output of the module. Care should

be taken to ensure that the maximum output power of

the module remains at or below the maximum rated

power.

Overtemperature Protection

These modules feature overtemperature protection to

safeguard the modules against thermal damage.

When the temperature exceeds the overtemperature

threshold given in the feature speciﬁcations table, the

module will limit the available output current in order to

help protect against thermal damage. The overcurrent

inception point will gradually move back to its original

level as the module is cooled below the overtempera-

ture threshold.

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Heat Transfer Without Heat Sinks

Feature Descriptions (continued)

Increasing airﬂow over the module enhances the heat

transfer via convection. Figures 9 and 10 show the

maximum power that can be dissipated by the module

without exceeding the maximum case temperature ver-

sus local ambient temperature (TA) for natural convec-

tion through 3 m/s (600 ft./min.).

Input Undervoltage Lockout

At input voltages below the input undervoltage lockout

limit, the module operation is disabled. The module will

begin to operate at an input voltage between the under-

voltage lockout limit and the minimum operating input

voltage.

Systems in which these power modules may be used

typically generate natural convection airﬂow rates of

0.3 ms^–1(60 ft./min.) due to other heat-dissipating

components in the system. Therefore, the natural con-

vection condition represents airﬂow rates of up to

0.3 ms^–1(60 ft./min.). Use of Figure 9 is shown in the

following example.

Thermal Considerations

Introduction

The power modules operate in a variety of thermal

environments; however, sufﬁcient cooling should be

provided to help ensure reliable operation of the unit.

Heat-dissipating components inside the unit are ther-

mally coupled to the case. Heat is removed by conduc-

tion, convection, and radiation to the surrounding

environment. Proper cooling can be veriﬁed by mea-

suring the case temperature. The case temperature

should be measured at the position indicated in

Figure 8.

Example

What is the minimum airﬂow necessary for a QW030A

operating at VI = 48 V, an output current of 3.5 A, and a

maximum ambient temperature of 89 °C?

Solution

Given: VI = 48 V

IO = 3.5 A

TA = 89 °C

33 (1.30)

Determine PD (Use Figure 12.):

PD = 3 W

(0.55)

VO(+)

(+)SENSE

TRIM

(–)SENSE

VO(–)

VI(+)

Determine airﬂow (v) (Use Figure 9.):

v = 1.0 m/s (200 ft./min.)

ON/OFF

VI(–)

MAX CASE TEMP.

8-2104(C).a

Note: Top view, pin locations are for reference only.

Measurements shown in millimeters and (inches).

Figure 8. QC/QW030-Series Case Temperature

Measurement Location

NATURAL CONVECTION

1.0 ms^-1(200 ft./min.)

2.0 ms^-1(400 ft./min.)

3.0 ms^-1(600 ft./min.)

The temperature at this location should not exceed

105 °C. The output power of the module should not

exceed the rated power for the module as listed in the

Ordering Information table.

100 110

MAX AMBIENT TEMPERATURE, TA (°C)

8-3406(F)

Although the maximum case temperature of the power

modules is 105 °C, you can limit this temperature to a

lower value for extremely high reliability.

Figure 9. QW030A, F Forced Convection Power

Derating with No Heat Sink; Either

Orientation

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Thermal Considerations (continued)

Heat Transfer Without Heat Sinks (continued)

7.0

MAX CASE TEMPERATURE

6.0

= 75 V

= 48 V

= 36 V

5.0

NATURAL

CONVECTION

4.0

3.0

2.0

1.0 ms ^–1(200 ft./min.)

2.0 ms ^–1(400 ft./min.)

3.0 ms ^–1(600 ft./min.)

0.3

1.3

2.3

3.3

4.3

(A)

5.3

6.3

OUTPUT CURRENT, I

8-9439(C)

1.0

0.0

Figure 12. QW030A Typical Power Dissipation vs.

Output Current at T^A= 25 °C

100 110

MAX AMBIENT TEMPERATURE, T

(°C)

8-3366(C).a

Note: Derating chart is estimated on information available at the time

of publishing. Contact your Lucent Technologies Account Man-

ager or Application Engineer for updated information.

Figure 10. QW030B, C Forced Convection Power

Derating with No Heat Sink; Either

Orientation

= 75 V

= 48 V

= 36 V

0.253 0.753

1.253

1.753

2.253

(A)

2.753 3.253

OUTPUT CURRENT, I

8-3376(C)

= 75 V

= 48 V

= 36 V

Figure 13. QW030B Typical Power Dissipation vs.

Output Current at TA = 25 °C

0.3

1.3

2.3

3.3

4.3

5.3

6.3

7.3

OUTPUT CURRENT, I

(A)

8-9439(C).a

Figure 11. QW030F Typical Power Dissipation vs.

Output Current at TA = 25 °C

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

These measured resistances are from heat transfer

from the sides and bottom of the module as well as the

top side with the attached heat sink; therefore, the

case-to-ambient thermal resistances shown are gener-

ally lower than the resistance of the heat sink by itself.

The module used to collect the data in the case-to-

ambient thermal resistance curves had a thermal-con-

ductive dry pad between the case and the heat sink to

minimize contact resistance.

Thermal Considerations (continued)

Heat Transfer Without Heat Sinks (continued)

Custom Heat Sinks

A more detailed model can be used to determine the

required thermal resistance of a heat sink to provide

necessary cooling. The total module resistance can be

separated into a resistance from case-to-sink (θcs) and

sink-to-ambient (θsa) as shown in Figure 15.

= 75 V

= 48 V

= 36 V

0.27

0.77

1.27

1.77

2.27

2.77

OUTPUT CURRENT, I

(A)

8-3287(C)

Figure 14. QW030C Typical Power Dissipation vs.

Output Current at TA = 25 °C

8-1304(C)

Figure 15. QC/QW030-Series Resistance from

Case-to-Sink and Sink-to-Ambient

Heat Transfer with Heat Sinks

The power modules have through-threaded, M3 x 0.5

mounting holes, which enable heat sinks or cold plates

to attach to the module. The mounting torque must not

exceed 0.56 N-m (5 in.-lb.). For a screw attachment

from the pin side, the recommended hole size on the

customer’s PWB around the mounting holes is 0.130

± 0.005 inches. The mounting torque from the pin side

must not exceed 0.25 N-m (2.2 in.-lbs.).

For a managed interface using thermal grease or foils,

a value of θcs = 0.1 °C/W to 0.3 °C/W is typical. The

solution for heat sink resistance is:

(TC – TA)

θsa =

– θcs

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

This equation assumes that all dissipated power must

be shed by the heat sink. Depending on the user-

deﬁned application environment, a more accurate

model, including heat transfer from the sides and bot-

tom of the module, can be used.This equation provides

a conservative estimate for such instances.

Thermal derating with heat sinks is expressed by using

the overall thermal resistance of the module.Total mod-

ule thermal resistance (θca) is deﬁned as the maximum

case temperature rise (∆TC, max) divided by the module

power dissipation (PD):

(TC – TA)

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

∆TC, max

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

Layout Considerations

θca =

Copper paths must not be routed beneath the power

module standoffs. For additional layout guidelines, refer

to the FLTR100V10 or FLTR100V20 data sheet.

The location to measure case temperature (TC) is

shown in Figure 8. Consult your Lucent Technologies

Account Manager or Application Engineer for case-to-

ambient thermal resistance vs. airﬂow for various heat

sink conﬁgurations, heights, and orientations. Longitu-

dinal orientation is deﬁned as the long axis of the mod-

ule that is parallel to the airﬂow direction, whereas in

the transverse orientation, the long axis is perpendicu-

lar to the airﬂow. These curves are obtained by experi-

mental testing of heat sinks, which are offered in the

product catalog.

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Outline Diagram

Dimensions are in millimeters and (inches).

Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.)

x.xx mm ± 0.25 mm (x.xxx in. ± 0.010 in.)

Top View

SIDE LABEL*

36.8

(1.45)

57.9

(2.28)

Side View

12.7

(0.50)

0.51

(0.020)

1.02 (0.040) DIA

SOLDER-PLATED

BRASS, ALL PLACES

6.1 (0.24), 4 PLACES

4.1 (0.16) MIN,

ALL PLACES

Bottom View

3.6

(0.14)

50.80

(2.000)

5.3

(0.21)

10.9

(0.43)

3.81

(0.150)

11.43

(0.450)

V^O(–)

VI(–)

7.62

(0.300)

– SENSE

TRIM

15.24

(0.600)

15.24

(0.600)

ON/OFF

26.16

+ SENSE

VO(+)

(1.030)

VI(+)

7.62

(0.300)

MOUNTING INSERTS

M3 x 0.5 THROUGH,

2 PLACES

47.2

(1.86)

5.3

(0.21)

8-1769(F).c

* Side label includes Lucent name, product designation, safety agency markings, input/output voltage and current ratings, and bar code.

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Recommended Hole Pattern

Component-side footprint.

Dimensions are in millimeters and (inches).

5.3

(0.21)

47.2

(1.86)

7.62

(0.300)

VI(+)

26.16

(1.030)

VO(+)

+ SENSE

15.24

(0.600)

15.24

TRIM

ON/OFF

VI(–)

7.62

(0.600)

– SENSE

(0.300)

VO(–)

11.43

(0.450)

3.81

(0.150)

10.9

(0.43)

50.80

(2.000)

5.3

(0.21)

MOUNTING INSERTS

M3 x 0.5 THROUGH,

2 PLACES

3.6

(0.14)

8-1769(F).c

Ordering Information

Optional features may be ordered using the device code sufﬁxes shown below. The feature sufﬁxes are shown in

numerically descending order. Please contact your Lucent Technologies Account Manager or Application Engineer

for pricing and availability.

Table 6. Device Codes

Input

Voltage

Output

Voltage

Output

Power

Output

Current

Remote On/

Off Logic

Device

Code

Comcode

48 Vdc

3.3 Vdc

5 Vdc

21.5 W

30 W

36 W

40 W

21.5 W

30 W

36 W

40 W

6.5 A

6 A

Negative

Positive

QW030F1

QW030A1

QW030B1

QW030C1

QW030F

QW030A

QW030B

QW030C

108729807

108748344

108846171

108729799

TBD

12 Vdc

15 Vdc

3.3 Vdc

5 Vdc

3 A

2.66 A

6.5 A

6 A

108710765

TBD

12 Vdc

15 Vdc

3 A

2.66 A

TBD

Table 7. Device Options

Option

Device Code Sufﬁx

Short pins: 2.79 mm ± 0.25 mm

(0.110 in. ± 0.010 in.)

Short pins: 3.68 mm ± 0.25 mm

(0.145 in. ± 0.010 in.)

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

Device Accessories

Accessory

Comcode

1/4 in. transverse kit (heat sink, thermal pad, and screws)

1/4 in. longitudinal kit (heat sink, thermal pad, and screws)

1/2 in. transverse kit (heat sink, thermal pad, and screws)

1/2 in. longitudinal kit (heat sink, thermal pad, and screws)

1 in. transverse kit (heat sink, thermal pad, and screws)

1 in. longitudinal kit (heat sink, thermal pad, and screws)

848060992

848061008

848061016

848061024

848061032

848061040

Dimensions are in millimeters and (inches).

1/4 IN.

1.450 ± 0.015

(36.83 ± 0.38)

1/2 IN.

1 IN.

1/2 IN.

1 IN.

2.280 ± 0.015

(57.91 ± 0.38)

1.850 ± 0.005

(47.24 ± 0.13)

1.030 ± 0.005

(26.16 ± 0.13)

8-2473(F)

8-2472(F)

Figure 16. QC/QW030-Series Longitudinal Heat

Sink

Figure 17. QC/QW030-Series Transverse Heat Sink

Lucent Technologies Inc.

QC/QW030-Series Power Modules: dc-dc Converters;

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs

Advance Data Sheet

September 2000

For additional information, contact your Lucent Technologies Account Manager or the following:

POWER SYSTEMS UNIT: Power Systems Group, Lucent Technologies Inc., 3000 Skyline Drive, Mesquite, TX 75149, USA

+1-800-526-7819 (Outside U.S.A.: +1-972-284-2626, FAX +1-888-315-5182) (product-related questions or technical assistance)

INTERNET:

E-MAIL:

http://www.lucent.com/networks/power

techsupport1@lucent.com

ASIA PACIFIC:

Lucent Technologies Singapore Pte. Ltd., 750D Chai Chee Road #07-06, Chai Chee Industrial Park, Singapore 469004

Tel. (65) 240 8041, FAX (65) 240 8438

CHINA:

JAPAN:

Lucent Technologies (China) Co. Ltd., SCITECH Place No. 22 Jian Guo Man Wai Avenue, Beijing 100004, PRC

Tel. (86) 10-6522 5566 ext. 4187, FAX (86) 10-6512 3694

Lucent Technologies Japan Ltd., Mori Building No. 21, 4-33, Roppongi 1-chome, Minato-ku, Tokyo 106-8508, Japan

Tel. (81) 3 5561 5831, FAX (81) 3 5561 1616

LATIN AMERICA: Lucent Technologies Inc., Room 416, 2333 Ponce de Leon Blvd., Coral Gables, FL 33134, USA

Tel. +1-305-569-4722, FAX +1-305-569-3820

EUROPE:

Data Requests: DATALINE:Tel. (44) 7000 582 368, FAX (44) 1189 328 148

Technical Inquiries:GERMANY: (49) 89 95086 0 (Munich), UNITED KINGDOM: (44) 1344 865 900 (Ascot),

FRANCE: (33) 1 40 83 68 00 (Paris), SWEDEN: (46) 8 594 607 00 (Stockholm), FINLAND: (358) 9 3507670 (Helsinki),

ITALY: (39) 02 6608131 (Milan), SPAIN: (34) 91 807 1441 (Madrid)

Lucent Technologies Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No

rights under any patent accompany the sale of any such product(s) or information.

Printed in U.S.A.

September 2000

DS00-246EPS (Replaces DS00-135EPS)

Printed On

Recycled Paper

厂商	型号	描述	页数
LINEAGEPOWER	QW010A0A	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页
LINEAGEPOWER	QW010A0A1	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页
LINEAGEPOWER	QW010A0A1-H	36 - 75VDC输入; 1.0VDC至5V直流输出; 10A至20A输出电流[ 36 - 75Vdc Input; 1.0Vdc to 5Vdc Output; 10A to 20A Output current ]	5 页
LINEAGEPOWER	QW010A0A1-SZ	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页
LINEAGEPOWER	QW010A0A1Z	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页
LINEAGEPOWER	QW015A0F	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页
LINEAGEPOWER	QW015A0F-H	36 - 75VDC输入; 1.0VDC至5V直流输出; 10A至20A输出电流[ 36 - 75Vdc Input; 1.0Vdc to 5Vdc Output; 10A to 20A Output current ]	5 页
LINEAGEPOWER	QW015A0F1	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页
LINEAGEPOWER	QW015A0F1-SZ	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页
LINEAGEPOWER	QW015A0F1Z	36伏至75伏直流输入; 1.2 Vdc至5.0 Vdc输出; 10 A至20 A[ 36 Vdc to 75 Vdc Input; 1.2 Vdc to 5.0 Vdc Output; 10 A to 20 A ]	24 页

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