JAW050A1中文资料_数据手册_规格书

Data Sheet

April 2008

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Features

n Small size: 61.0 mm x 57.9 mm x 12.7 mm

(2.40 in. x 2.28 in. x 0.50 in.)

n High power density

n High efficiency: 84% typical

n Low output noise

n Constant frequency

n Industry-standard pinout

n Metal case

n 2:1 input voltage range

The JAW Series Power Modules use surface-mount technol-

ogy and deliver efficient and compact dc-dc conversion.

n Overtemperature, overvoltage, and overcurrent

protection

Applications

n Remote on/off and remote sense

n Adjustable output voltage

n Case ground pin

n Distributed power architectures

n Establishing 5 V local power bus to feed

point-of-load converters in 48 V bus systems

n Manufacturing facilities registered against the

ISO*9000 series standards

n UL^†60950 Recognized, CSA^‡C22.2 No. 60950-00

Certified, and VDE ^§0805 (IEC** 60950, 4th Edi-

tion) Licensed

Options

n Heat sinks available for extended operation

n Choice of remote on/off logic configuration

n Choice of short lead lengths

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

directives^††

Description

The JAW050A and JAW075A Power Modules are dc-dc converters that operate over an input voltage range of

36 Vdc to 75 Vdc and provide a regulated dc output. The outputs are fully isolated from the inputs, allowing

versatile polarity configurations and grounding connections. The modules have maximum power ratings from

50 W to 75 W at a typical full-load efficiency of 84%.

The sealed modules offer a metal baseplate for improved 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.

*

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 Association.

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

** IEC is a trademark of International Elektrotechniker Commission.

††This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should

be followed. (The CE mark is placed on selected products.)

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Absolute Maximum Ratings

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

lute 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

Symbol

Min

Max

Unit

Input Voltage:

Continuous

V^I

VI, trans

—

80

100

Vdc

V

Transient (100 ms)

Operating Case Temperature

T^C

–40

100

°C

(See Thermal Considerations section.)

Storage Temperature

I/O Isolation Voltage

T^stg

—

–55

—

125

°C

1500

Vdc

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

Symbol

Min

Typ

Max

Unit

V^I

36

48

75

Vdc

Maximum Input Current:

V^I= 0 V to 75 V; IO = IO, max:

JAW050A (See Figure 1.)

JAW075A (See Figure 2.)

V^I= 36 V to 75 V; IO = IO, max:

JAW050A

I^{I, max}

II, max

—

3.0

3.5

A

II, max

—

1.7

2.6

A

JAW075A

Inrush Transient

i²t

—

5

1.0

—

A²s

Input Reflected-ripple Current, Peak-to-peak

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

see Figure 11.)

I^I

mAp-p

Input Ripple Rejection (120 Hz)

—

60

—

dB

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 fus-

ing 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 6 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.

2

Lineage Power

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Electrical Specifications (continued)

Table 2. Output Specifications

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set Point

All

V^{O, set}

4.92

5.0

5.08

Vdc

(V^I= 48 V; IO = IO, max; TC = 25 °C)

Output Voltage

All

V^O

4.85

—

5.15

Vdc

(Over all operating input voltage, resistive load,

and temperature conditions until end of life.

See Figure 13.)

Output Regulation:

Line (VI = 36 V to 75 V)

Load (I^O= IO, min to IO, max)

Temperature (T^C= –40 °C to +100 °C)

All

—

0.01

0.05

15

0.1

0.2

50

%V^O

%VO

mV

Output Ripple and Noise Voltage

(See Figure 12.):

RMS

All

—

40

150

mVrms

mVp-p

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

External Load Capacitance

All

—

0

—

*

µF

Output Current

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

ripple specifications.)

JAW050A

JAW075A

I^O

IO

0.5

—

10

15

A

Output Current-limit Inception

(V^O= 90% of VO, nom)

JAW050A

JAW075A

I^{O, cli}

IO, cli

—

12.0

18.0

14^†

21^†

A

Output Short-circuit Current (V^O= 250 mV)

All

—

170

—

%IO, max

Efficiency (VI = 48 V; IO = IO, max; TC = 70 °C;

see Figure 13.)

JAW050A

JAW075A

η

—

84

—

%

Switching Frequency

All

—

320

—

kHz

Dynamic Response

(ΔI^O/Δt = 1 A/10 µs, VI = 48 V, TC = 25 °C;

tested without any load capacitance.):

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

Peak Deviation

Settling Time (V^O< 10% of peak deviation)

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

Peak Deviation

All

—

5

300

—

%V^O,

set

µs

All

—

5

300

—

Settling Time (V^O< 10% of peak deviation)

%V^O,

set

µs

* Consult your sales representative or the factory.

† These are manufacturing test limits. In some situations, results may differ.

Table 3. Isolation Specifications

Parameter

Isolation Capacitance

Min

—

Typ

Max

Unit

pF

2500

—

Isolation Resistance

10

MΩ

Lineage Power

3

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

General Specifications

Parameter

Calculated MTBF (I^O= 80% of IO, max; TC = 40 °C)

Weight

Min

Typ

3,000,000

—

Max

Unit

hours

g (oz.)

—

100 (3.5)

Feature Specifications

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

conditions. See the Feature Descriptions section for additional information.

Parameter

Remote On/Off Signal Interface

Symbol

Min

Typ

Max

Unit

(V^I= 0 V to 75 V; open collector or equivalent compatible;

signal referenced to V^I(–) terminal):

JAWxxxA1 Preferred Logic:

Logic Low—Module On

Logic High—Module Off

JAWxxxA Optional Logic:

Logic Low—Module Off

Logic High—Module On

Logic Low:

At I^on/off= 1.0 mA

At V^on/off= 0.0 V

V^on/off

Ion/off

0

—

1.2

1.0

V

mA

Logic High:

At I^on/off= 0.0 µA

Leakage Current

Turn-on Time (See Figure 10.)

(I^O= 80% of IO, max; VO within ±1% of steady state)

Von/off

Ion/off

—

40

15

50

80

V

µA

ms

Output Voltage Adjustment:

Output Voltage Remote-sense Range

Output Voltage Set-point Adjustment Range (trim)

—

60

—

0.5

110

V

%V^{O, nom}

Output Overvoltage Protection

Overtemperature Protection

VO, sd

5.9*

—

7.0*

—

V

T^C

105

°C

* These are manufacturing test limits. In some situations, results may differ.

Solder, Cleaning, and Drying Considerations

Post solder cleaning is usually the final circuit-board assembly process prior to the electrical board testing. The

result of inadequate circuit-board cleaning and drying can affect both the reliability of a power module and the test-

ability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning, and drying proce-

dures, refer to the Board-Mounted Power Modules: Soldering and Cleaning Application Note (AP97-021EPS).

4

Lineage Power

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Characteristic Curves

The following figures provide typical characteristics for the power modules. The figures are identical for both on/off

configurations.

84

83

1.8

1.6

IO = 10 A

IO = 5 A

IO = 0.5 A

82

81

80

79

78

77

76

1.4

1.2

1.0

0.8

0.6

0.4

VI = 36 V

VI = 55 V

VI = 75 V

0.2

0.0

75

74

3

4

5

6

7

8

9

10

0

5

10 15 20 25 30 35 40 45 50 55 60 65 70 75

INPUT VOLTAGE, VI (V)

OUTPUT CURRENT, IO (A)

8-3329(F)

8-3327(F)

Figure 3. Typical JAW050A Efficiency vs. Output

Current at Room Temperature

Figure 1. Typical JAW050A Input Characteristics at

Room Temperature

85

84

3.0

IO = 15 A

IO = 7.5 A

2.5

2.0

83

82

81

IO = 1.5 A

VI = 36 V

80

1.5

1.0

VI = 55 V

79

78

77

VI = 75 V

0.5

0.0

76

75

3

4

5

6

7

8

9

10 11 12 13 14 15

0

5

10 15 20 25 30 35 40 45 50 55 60 65 70 75

INPUT VOLTAGE, VI (V)

OUTPUT CURRENT, IO (A)

8-3330(F)

8-3328(F)

Figure 2. Typical JAW075A Input Characteristics at

Room Temperature

Figure 4. Typical JAW075A Efficiency vs. Output

Current at Room Temperature

Lineage Power

5

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Characteristic Curves (continued)

IO = 1.0 A

IO = 7.5 A

7.5 A

IO = 15 A

TIME, t (200 μs/div)

8-3332(F)

Note: Tested without any load capacitance.

TIME, t (5 μs/div)

Note: See Figure 12 for test conditions.

Figure 7. Typical JAW075A Transient Response to

Step Increase in Load from 50% to 75% of

Full Load at Room Temperature and

48 Vdc Input (Waveform Averaged to

Eliminate Ripple Component.)

8-3331(F)

Figure 5. Typical JAW075A Output Ripple Voltage

at Room Temperature and 48 Vdc Input

2.5 A

5 A

TIME, t (50 μs/div)

1-0097

1-0098

Note: Tested without any load capacitance.

Figure 6. Typical JAW050A Transient Response to

Step Increase in Load from 50% to 75% of

Full Load at Room Temperature and

48 Vdc Input (Waveform Averaged to

Eliminate Ripple Component.)

Figure 8. Typical JAW050A Transient Response to

Step Decrease in Load from 50% to 25%

of Full Load at Room Temperature and

48 Vdc Input (Waveform Averaged to

Eliminate Ripple Component.)

6

Lineage Power

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Characteristic Curves (continued)

Test Configurations

TO OSCILLOSCOPE

CURRENT

PROBE

L^TEST

V^I(+)

12 μH

C^S220 μF

ESR < 0.1 Ω

@ 20 °C, 100 kHz

33 μF

BATTERY

ESR < 0.7 Ω

@ 100 kHz

V^I(–)

8-203(F).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.

3.7 A

Figure 11. Input Reflected-Ripple Test Setup

TIME, t (200 ms/div)

COPPER STRIP

8-3333(F)

VO(+)

Note: Tested without any load capacitance.

RESISTIVE

LOAD

1.0

μF

10

μF

SCOPE

Figure 9. Typical JAW075A Transient Response to

Step Decrease in Load from 50% to 25%

of Full Load at Room Temperature and

48 Vdc Input (Waveform Averaged to

Eliminate Ripple Component.)

VO(–)

8-513(F).d

Note: Use a 1.0 µF ceramic capacitor and a 10 µF aluminum or tan-

talum 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 12. Peak-to-Peak Output Noise

Measurement Test Setup

SENSE(+)

CONTACT AND

DISTRIBUTION LOSSES

VI(+)

V^I(–)

V^O(+)

I^I

IO

LOAD

SUPPLY

V^O(–)

CONTACT

RESISTANCE

SENSE(–)

8-749(F)

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.

TIME, t (5 ms/div)

1-0099

[VO(+) – VO(–)]IO

[VI(+) – VI(–)]II

⎛

⎝

⎞

⎠

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

η =

x 100

%

Note: Tested without any load capacitance.

Figure 10. JAW075A1 Typical Start-Up from

Remote On/Off; I^O= IO, max

Figure 13. Output Voltage and Efficiency

Measurement Test Setup

Lineage Power

7

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Design Considerations

Input Source Impedance

Feature Descriptions

Overcurrent Protection

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. For the test configuration in Figure 11, 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. For other highly inductive source

impedances, consult the factory for further application

guidelines.

To provide protection in an output overload condition,

the unit is equipped with an internal shutdown and

auto-restart mechanism. At the instance of current-limit

inception, the module enters a hiccup mode of opera-

tion whereby it shuts down and automatically attempts

to restart. As long as the fault persists, the module

remains in this mode.

The protection mechanism is such that the unit can

continue in this condition until the fault is cleared.

Safety Considerations

Remote On/Off

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 60950, CSA C22.2 No. 60950-00, and

VDE 0805 (IEC 60950, 4th Edition).

Two remote on/off options are available. Positive logic

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

voltage on the ON/OFF pin, and off during a logic low.

Negative logic remote on/off turns the module off dur-

ing a logic high and on during a logic low. Negative

logic, device code suffix “1,” is the factory-preferred

configuration.

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

meeting the requirements of safety extra-low voltage

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

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 V^I(–) terminal (Von/off). The

switch can be an open collector or equivalent (see

Figure 14). A logic low is V^on/off= 0 V to 1.2 V. The

maximum I^on/offduring a logic low is 1 mA. The switch

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

n The input source is to be provided with reinforced

insulation from any other hazardous voltages, includ-

ing the ac mains.

During a logic high, the maximum V^on/offgenerated by

the power module is 15 V. The maximum allowable

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

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

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

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

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

following:

sible.

n 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.

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

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

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 pins 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 6 A normal-blow fuse in the ungrounded lead.

8

Lineage Power

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Feature Descriptions (continued)

Remote On/Off (continued)

SENSE(+)

SENSE(–)

V^I(+)

V^I(–)

VO(+)

V^O(–)

I

on/off

I^O

SUPPLY

LOAD

I^I

ON/OFF

+

CONTACT

RESISTANCE

CONTACT AND

V

on/off

–

SENSE(+)

(+)

DISTRIBUTION LOSSES

8-651(F).m

V

O

LOAD

Figure 15. Effective Circuit Configuration for

VO(–)

VI(+)

Single-Module Remote-Sense Operation

SENSE(–)

VI(–)

8-720(F).c

Output Voltage Set-Point Adjustment (Trim)

Figure 14. Remote On/Off Implementation

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

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, i.e.:

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

With an external resistor between the TRIM and

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

(V^{O, adj}) decreases (see Figure 16). The following equa-

tion determines the required external-resistor value to

obtain a percentage output voltage change of Δ%.

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

The voltage between the V^O(+) and VO(–) terminals

must not exceed the minimum output overvoltage pro-

tection voltage as indicated in the Feature Specifica-

tions table. This limit includes any increase in voltage

due to remote-sense compensation and output voltage

set-point adjustment (trim). See Figure 15.

1000

Δ%

⎛

⎞

R^adj-down= ------------ – 11 kΩ

⎝

⎠

With an external resistor connected between the TRIM

and SENSE(+) pins (R^adj-up), the output voltage set

point (V^{O, adj}) increases (see Figure 17).

If not using the remote-sense feature to regulate the

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

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

The following equation determines the required exter-

nal-resistor value to obtain a percentage output voltage

change of Δ%.

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 the factory if you

need to increase the output voltage more than the

above limitation.

Δ%

⎛

⎜

⎝

⎞

(VO, nom)(1 + ---------) – 1.225

100

⎟

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

R^adj-up=

1000 – 11 kΩ

⎟

⎠

1.225Δ%

The voltage between the V^O(+) and VO(–) terminals

must not exceed the minimum output overvoltage pro-

tection voltage as indicated in the Feature Specifica-

tions table. This limit includes any increase in voltage

due to remote-sense compensation and output voltage

set-point adjustment (trim). See Figure 15.

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.

Lineage Power

9

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Output Overvoltage Protection

Feature Descriptions (continued)

To provide protection in an output overvoltage condi-

tion, the unit is equipped with circuitry that monitors the

voltage on the output terminals. If the voltage on the

output terminals exceed the overvoltage protection

threshold, the module enters a hiccup mode of opera-

tion whereby it shuts down and automatically attempts

to restart. As long as the fault persists, the module

remains in this mode.

Output Voltage Set-Point Adjustment (Trim)

(continued)

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 the factory if you

need to increase the output voltage more than the

above limitation.

The protection mechanism is such that the unit can

continue in this condition until the fault is cleared.

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 an overtemperature protection

circuit to safeguard against thermal damage. The cir-

cuit shuts down when the maximum case temperature

is exceeded. The module will automatically restart

when the case temperature cools sufficiently.

Thermal Considerations

Introduction

VI(+)

VO(+)

ON/OFF SENSE(+)

CASE

VI(–)

TRIM

SENSE(–)

VO(–)

RLOAD

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. Peak temperature (T^C)

occurs at the position indicated in Figure 18.

Radj-down

8-748(F).b

Figure 16. Circuit Configuration to Decrease

Output Voltage

MEASURE CASE

TEMPERATURE HERE

VI(+)

VO(+)

VI(+)

VO(+)

ON/OFF SENSE(+)

Radj-up

ON/OFF

CASE

+ SEN

TRIM

CASE

VI(–)

TRIM

SENSE(–)

VO(–)

RLOAD

– SEN

30.5

(1.20)

V

I

(–)

VO(–)

8-715(F).b

29.0

(1.14)

Figure 17. Circuit Configuration to Increase

Output Voltage

8-716(F).h

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

are shown in millimeters and (inches).

Figure 18. Case Temperature Measurement

Location

10

Lineage Power

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Thermal Considerations (continued)

Introduction (continued)

12

11

VI = 75 V

VI = 55 V

VI = 36 V

10

9

The temperature at this location should not exceed

100 °C. The output power of the module should not

exceed the rated power for the module as listed in the

Ordering Information table.

8

7

6

Although the maximum case temperature of the power

modules is 100 °C, you can limit this temperature to a

lower value for extremely high reliability.

5

4

3

0

1

2

3

4

5

6

7

8

9

10

OUTPUT CURRENT, IO (A)

Heat Transfer Without Heat Sinks

8-3336(F)

Figure 19. JAW050A Power Dissipation vs.

Output Current at 25 °C

Increasing airflow over the module enhances the heat

transfer via convection. Figures 21 and 22 show the

maximum power that can be dissipated by the module

without exceeding the maximum case temperature ver-

sus local ambient temperature (T^A) for natural convec-

tion through 4 m/s (800 ft./min.). Note that the thermal

performance is orientation dependent. Longitudinal ori-

entation occurs when the long direction of the module

is parallel to the airflow, whereas transverse orientation

occurs when the short direction of the module is paral-

lel to the airflow.

16

15

VI = 75 V

14

13

12

11

10

9

VI = 55 V

VI = 36 V

Note that the natural convection condition was mea-

sured at 0.05 m/s to 0.1 m/s (10 ft./min. to 20 ft./min.);

however, systems in which these power modules may

be used typically generate natural convection airflow

rates of 0.3 m/s (60 ft./min.) due to other heat-dissipat-

ing components in the system. The use of Figure 22 is

shown in the following example.

8

7

6

5

4

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15

OUTPUT CURRENT, IO (A)

8-3337(F)

Example

Figure 20. JAW075A Power Dissipation vs.

Output Current at 25 °C

What is the minimum airflow necessary for a JAW075A

operating at V^I= 55 V, an output current of 15 A, trans-

verse orientation, and a maximum ambient tempera-

ture of 55 °C?

Solution

Given: V^I= 55 V

I^O= 15 A

T^A= 55 °C

Determine P^D(Use Figure 20.):

P^D= 14 W

Determine airflow (v) (Use Figure 22.):

v = 2.3 m/s (460 ft./min.)

Lineage Power

11

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Thermal derating with heat sinks is expressed by using

the overall thermal resistance of the module. Total

module thermal resistance (θca) is defined as the max-

imum case temperature rise (ΔT^{C, max}) divided by the

module power dissipation (P^D):

Thermal Considerations (continued)

Heat Transfer Without Heat Sinks (continued)

20

(T^C– TA)

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

P^D

ΔTC, max

θca = --------------------

PD

18

=

3.0 m/s

(600 ft./min.)

16

14

12

10

8

The location to measure case temperature (T^C) is

shown in Figure 18. Case-to-ambient thermal resis-

tance vs. airflow for various heat sink configurations

and heights is shown in Figures 23 and 24. These

curves were obtained by experimental testing of heat

sinks, which are offered in the product catalog.

4.0 m/s

(800 ft./min.)

0.1 m/s

(20 ft./min.)

1.0 m/s

(200 ft./min.)

6

4

2.0 m/s

9

8

(400 ft./min.)

2

0

7

0

10 20 30 40 50 60 70 80 90 100

NO HEAT SINK

6

5

4

3

2

1/4 IN. HEAT SINK

1/2 IN. HEAT SINK

1 IN. HEAT SINK

LOCAL AMBIENT TEMPERATURE, TA (°C)

8-2465(F)

1 1/2 IN. HEAT SINK

Figure 21. Forced Convection Power Derating with

No Heat Sink; Longitudinal Orientation

1

0

20

0

0.5

(100)

1.0

1.5

2.0

2.5

(500)

3.0

18

3.0 m/s

(200)

(300)

(400)

(600)

(600 ft./min.)

16

14

12

10

8

AIR VELOCITY, m/s (ft./min.)

4.0 m/s

(800 ft./min.)

8-2164(F).a

Figure 23. Case-to-Ambient Thermal Resistance

Curves; Longitudinal Orientation

0.1 m/s

(20 ft.min.)

6

1.0 m/s

(200 ft./min.)

4

2.0 m/s

2 (400 ft./min.)

8

7

0

NO HEAT SINK

0

10 20 30 40 50 60 70 80 90 100

1/4 IN. HEAT SINK

1/2 IN. HEAT SINK

1 IN. HEAT SINK

6

5

4

3

2

LOCAL AMBIENT TEMPERATURE, TA (°C)

8-2466(F)

1 1/2 IN. HEAT SINK

Figure 22. Forced Convection Power Derating with

No Heat Sink; Transverse Orientation

Heat Transfer with Heat Sinks

1

0

0.5

(100)

1.0

1.5

2.0

2.5

(500)

3.0

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.).

(200)

(300)

(400)

(600)

AIR VELOCITY, m/s (ft./min.)

8-2165(F).a

Figure 24. Case-to-Ambient Thermal Resistance

Curves; Transverse Orientation

12

Lineage Power

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Custom Heat Sinks

Thermal Considerations (continued)

Heat Transfer with Heat Sinks (continued)

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 25.

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 Figures 23 and

24 had a thermal-conductive dry pad between the case

and the heat sink to minimize contact resistance. The

use of Figure 23 is shown in the following example.

TC

TS

TA

P^D

θcs

θsa

8-1304(F).e

Figure 25. Resistance from Case-to-Sink and

Sink-to-Ambient

Example

If an 82 °C case temperature is desired, what is the

minimum airflow necessary? Assume the JAW075A

module is operating at V^I= 55 V, an output current of

15 A, longitudinal orientation, maximum ambient air

temperature of 40 °C, and the heat sink is 1/4 inch.

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

PD

Solution

Given: V^I= 55 V

I^O= 15 A

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 pro-

vides a conservative estimate for such instances.

T^A= 40 °C

T^C= 82 °C

Heat sink = 1/4 inch.

Determine P^Dby using Figure 20:

P^D= 14 W

EMC Considerations

Then solve the following equation:

For assistance with designing for EMC compliance,

refer to the FLTR100V10 Filter Module Data Sheet

(DS99-294EPS).

(T^C– TA)

θca = ------------------------

P^D

(82 – 40)

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

θca =

14

Layout Considerations

θca = 3.0 °C/W

Use Figure 23 to determine air velocity for the 1/4 inch

heat sink.

Copper paths must not be routed beneath the power

module standoffs. For additional layout guidelines,

refer to the FLTR100V10 Filter Module Data Sheet

(DS99-294EPS).

The minimum airflow necessary for this module is

1.1 m/s (220 ft./min.).

Lineage Power

13

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

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

57.9 (2.28)

61.0

(2.40)

Side View

SIDE LABEL*

0.51 (0.020)

12.7 (0.50)

2.06 (0.081) DIA SOLDER-

PLATED BRASS, 2 PLACES

(VO(−) AND VO(+))

1.02 (0.040) DIA

SOLDER-PLATED

BRASS, 7 PLACES

4.1 (0.16)

†

MIN

Bottom View

MOUNTING INSERTS

M3 x 0.5 THROUGH,

4 PLACES

7.1

(0.28)

STANDOFF,

4 PLACES

12.7 (0.50)

5.1 (0.20)

7.1 (0.28)

V^I(−)

VO(−)

10.16

(0.400)

10.16

(0.400)

17.78

(0.700)

CASE

−SEN

TRIM

+SEN

50.8

25.40

(1.000)

25.40

(1.000)

(2.00)

35.56

(1.400)

35.56

(1.400)

ON/OFF

V^I(+)

V^O(+)

48.26 (1.900)

4.8

(0.19)

48.3 (1.90)

8-716(F).j

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

† The case pin length is 5.3 (0.21), i.e., 1.2 (0.05) longer than the other pins.

14

Lineage Power

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Recommended Hole Pattern

Component-side footprint.

Dimensions are in millimeters and (inches).

57.9 (2.28)

48.3 (1.90)

4.8

(0.19)

48.26 (1.900)

TERMINALS

61.0

(2.40)

V^I(+)

VO(+)

35.56

ON/OFF

+SEN

TRIM

−SEN

(1.400)

25.40

(1.000)

50.8

25.40

(2.00)

(1.000)

17.78

(0.700)

CASE

10.16

(0.400)

10.16

(0.400)

VO(−)

VI(−)

5.1 (0.20)

12.7 (0.50)

MODULE OUTLINE

8-716(F).j

Ordering Information

Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability.

Table 4. Device Codes

Input

Voltage

Output

Voltage

Output

Power

Output

Current

Remote On/Off

Logic

Device

Code

Comcode

48 Vdc

5.0 Vdc

50 W

75 W

50 W

75 W

10 A

15 A

10 A

15 A

Negative

Positive

JAW050A1

JAW075A1

JAW050A

JAW075A

108209974

108064353

108449323

108449422

Optional features can be ordered using the suffixes shown in Table 5. To order more than one option, list the

device codes suffixes in numerically descending order. For example, the device code for a JAW075A module with

the following option is shown below:

Short pins: 3.68 mm ± 0.25 mm (0.145 in. ± 0.010 in.)

JAW075A6

Table 5. Device Options

Device Code

Option

Suffix

Short pins: 2.79 mm ± 0.25 mm

(0.110 in. +0.020 in./–0.010 in.)

8

Short pins: 3.68 mm ± 0.25 mm

(0.145 in. ± 0.010 in.)

6

Lineage Power

15

JAW050A and JAW075A Power Modules; dc-dc Converters:

36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W

Data Sheet

April 2008

Ordering Information (continued)

Table 6. 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)

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

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

407243989

407243997

407244706

407244714

407244722

407244730

407244748

407244755

Dimensions are in millimeters and (inches).

1/4 IN.

1/2 IN.

1/4 IN.

1/2 IN.

1 IN.

61

(2.4)

57.9

(2.28)

1 1/2 IN.

57.9

(2.28)

61

(2.4)

8-2832(F).a

8-2833(F)

Figure 26. Longitudinal Heat Sink

Figure 27. Transverse Heat Sink

Asia-Pacific Headquarters

Tel: +65 641 6 4283

Europe, Middle-East and Afric a He adquarters

Tel: +49 89 6089 286

World Wide Headquarters

Lineage Power Corporation

30 00 Skyline Drive, Mesquite, TX 75149, USA

+1-800-526-7819

(Outsid e U.S.A .: +1-97 2-284 -2626)

www.line agepower.com

India Headquarters

Tel: +91 80 28411633

e-m ail: techsupport1@linea gepower.com

Lineage Power 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.

April 2008

DS00-326EPS (Replaces DS00-325EPS)

型号	制造商	描述	价格	文档
JAW075A	LINEAGEPOWER	JAW050A and JAW075A Power Modules; dc-dc Converters 36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W	获取价格
JAW12-0R9	TDK		获取价格
JAW12-12R	TDK		获取价格
JAW12-1R3	TDK		获取价格
JAW12-4R3	TDK		获取价格
JAW12-8R5	TDK		获取价格
JAW24-0R5	TDK		获取价格
JAW24-0R7	TDK		获取价格
JAW24-2R1	TDK		获取价格
JAW24-4R3	TDK		获取价格

JAW050A1

JAW050A1 概述

JAW050A1 数据手册

JAW050A1 相关器件

JAW050A1 相关文章

热门型号