JW150F1现货热卖使用介绍供应商报价哪里找芯片批发报价-中国IC网-芯三七

Data Sheet

April 2008

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 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: 80% typical

n Low output noise

n Constant frequency

n Industry-standard pinout

n Metal baseplate

n 2:1 input voltage range

The JW050F, JW075F, JW100F, and JW150F Power Modules

n Overtemperature protection (66 W and 99 W only)

n Overcurrent and overvoltage protection

n Remote sense

use advanced, surface-mount technology and deliver high-

quality, efficient, and compact dc-dc conversion.

Applications

n Remote on/off

n Adjustable output voltage: 60% to 110% of VO, nom

n Case ground pin

n Distributed power architectures

n Workstations

n ISO9001 Certified manufacturing facilities

n Computer equipment

n Communications equipment

n UL* 1950 Recognized, CSA^†C22.2 No. 950-95

Certified, and VDE 0805 (EN60950, IEC950)

Licensed

Options

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

directives^‡

n Heat sinks available for extended operation

n Choice of remote on/off logic configuration

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

†CSA is a registered trademark of Canadian Standards Assn.

‡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.)

Description

The JW050F, JW075F, JW100F, and JW150F Power Modules are dc-dc converters that operate over an input

voltage range of 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 maxi-

mum power ratings from 33 W to 99 W at a typical full-load efficiency of 80%.

The sealed modules offer a metal baseplate for excellent thermal performance. Threaded-through holes are pro-

vided 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.

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 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:

JW050F, JW075F

JW100F, JW150F

Transient (100 ms; JW100F, JW150F only)

VI

VI, trans

—

75

80

100

Vdc

V

I/O Isolation Voltage (for 1 minute)

—

1500

100

Vdc

°C

Operating Case Temperature

TC

–40

(See Thermal Considerations section.)

Storage Temperature

Tstg

–55

125

°C

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

VI

36

48

75

Vdc

Maximum Input Current

(VI = 0 V to 75 V; IO = IO, max):

JW050F (See Figure 1.)

JW075F (See Figure 2.)

JW100F (See Figure 3.)

JW150F (See Figure 4.)

II, max

—

1.2

1.8

2.4

3.7

A

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 17.)

II

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, dc fuse with a maximum rating of 20 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

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Electrical Specifications (continued)

Table 2. Output Specifications

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set Point

All

VO, set

3.25

3.3

3.35

Vdc

(VI = 48 V; IO = IO, max; TC = 25 °C)

Output Voltage

All

VO

3.20

—

3.40

Vdc

(Over all operating input voltage, resistive load,

and temperature conditions until end of life. See

Figure 19.)

Output Regulation:

Line (VI = 36 V to 75 V)

Load (IO = IO, min to IO, max)

Temperature (TC = –40 °C to +100 °C)

All

—

0.01

0.05

15

0.1

0.2

50

%VO

mV

Output Ripple and Noise Voltage (See

Figure 18.):

RMS

All

—

40

150

mVrms

mVp-p

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

External Load Capacitance

All

—

0

—

*

µF

Output Current

(At IO < IO, min, the modules may exceed output

ripple specifications.)

JW050F

JW075F

JW100F

JW150F

IO

0.5

—

10

15

20

30

A

Output Current-limit Inception

(VO = 90% of VO, nom)

JW050F

JW075F

JW100F

JW150F

IO, cli

—

12.0

18.0

23.0

34.5

14^†

21^†

26^†

39^†

A

Output Short-circuit Current (VO = 250 mV)

All

—

170

—

%IO, max

Efficiency

(VI = 48 V; IO = IO, max; TC = 70 °C)

JW050F

JW075F

JW100F

JW150F

η

—

80

—

%

Switching Frequency

All

—

500

—

kHz

Dynamic Response

(ýIO/ýt = 1 A/10 µs, VI = 48 V, TC = 25 °C; tested

with a 10 µF aluminum and a 1.0 µF ceramic

capacitor across the load; see Figures 14 and

15):

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

Peak Deviation

Settling Time (VO < 10% of peak deviation)

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

Peak Deviation

All

—

3.8

300

—

%VO, set

µs

All

—

3.8

300

—

%VO, set

Settling Time (VO < 10% of peak deviation)

µs

* Consult your sales representative or the factory.

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

Lineage Power

3

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Electrical Specifications (continued)

Table 3. Isolation Specifications

Parameter

Min

—

Typ

2500

—

Max

—

Unit

pF

Isolation Capacitance

Isolation Resistance

10

—

M¾

General Specifications

Parameter

Min

Typ

2,600,000

—

Max

Unit

hr.

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

Weight

—

100 (3.5)

g (oz.)

Feature Specifications

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

conditions. See Feature Descriptions for additional information.

Parameter

Remote On/Off Signal Interface

Symbol

Min

Typ

Max

Unit

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

signal referenced to VI(–) terminal; see Figure 20 and

Feature Descriptions.):

JWxxxF1 Preferred Logic:

Logic Low—Module On

Logic High—Module Off

JWxxxF Optional Logic:

Logic Low—Module Off

Logic High—Module On

Logic Low:

At Ion/off = 1.0 mA

At Von/off = 0.0 V

Von/off

Ion/off

0

—

1.2

1.0

V

mA

Logic High:

At Ion/off = 0.0 µA

Leakage Current

Turn-on Time (See Figure 16.)

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

Von/off

Ion/off

—

20

15

50

35

V

µA

ms

Output Voltage Adjustment (See Feature Descriptions.):

Output Voltage Remote-sense Range

—

60

—

0.5

110

V

Output Voltage Set-point Adjustment Range (trim)

%VO, nom

Output Overvoltage Protection

VO, clamp

TC

4.0*

—

5.0*

—

V

Overtemperature Protection (shutdown)

105

°C

(66 W and 99 W only; see Feature Descriptions.)

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

4

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 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.

1.4

1.2

3.0

2.5

1.0

0.8

0.6

2.0

1.5

1.0

0.5

0.0

0.4

0.2

0.0

0

4

8

12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72

INPUT VOLTAGE, V (V )

0

4

8

12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72

INPUT VOLTAGE, V (V)

I

8-1446 (C)

8-1448 (C)

Figure 1. Typical JW050F Input Characteristics at

Room Temperature

Figure 3. Typical JW100F Input Characteristics at

Room Temperature

2.0

1.8

4.0

3.5

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

3.0

2.5

2.0

1.5

1.0

0.5

0.0

0

4

8

12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72

INPUT VOLTAGE, V (V)

0

4

8

12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72

INPUT VOLTAGE, V (V)

I

8-1447 (C)

8-1449 (C)

Figure 2. Typical JW075F Input Characteristics at

Room Temperature

Figure 4. Typical JW150F Input Characteristics at

Room Temperature

Lineage Power

5

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Characteristic Curves (continued)

3.5

3.0

3

2.5

2.0

1.5

1.0

VI = 36 V

VI = 54 V

VI = 72 V

2

1.5

1

0.5

0.0

0.5

0

5

10

15

20

(A)

25

30

0

2

4

6

8

10

12

OUTPUT CURRENT, I

O

OUTPUT CURRENT, I

O (A)

8-1452 (C)

8-2159 (C)

Figure 7. Typical JW100F Output Characteristics at

Room Temperature

Figure 5. Typical JW050F Output Characteristics at

Room Temperature

3.5

3.0

3.5

3.0

2.5

2.0

1.5

2.5

2.0

1.5

1.0

0.5

0.0

1.0

0.5

0.0

0

2

4

6

8

10

12

14

16

18

20

0

5

10

15

20

25

30

35

40

OUTPUT CURRENT, I

O

(A)

OUTPUT CURRENT, I

O

(A)

8-1453 (C)

8-1451 (C)

Figure 8. Typical JW150F Output Characteristics at

Room Temperature

Figure 6. Typical JW075F Output Characteristics at

Room Temperature

6

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Characteristic Curves (continued)

81

80

82

81.5

81

80.5

80

79

78

77

76

VI = 36 V

VI = 54 V

79.5

79

V

I

= 36 V

= 54 V

= 72 V

78.5

78

75

74

73

72

71

VI = 72 V

77.5

77

76.5

76

0

2

4

6

8

10

12

14

(A)

16

18 20

2

3

4

5

6

7

8

9

10

OUTPUT CURRENT, I

O

OUTPUT CURRENT, I

O (A)

8-1454 (C)

8-1456 (C)

Figure 9. Typical JW050F Converter Efficiency vs.

Output Current at Room Temperature

Figure 11. Typical JW100F Converter Efficiency vs.

Output Current at Room Temperature

78.5

78.0

82

81

77.5

77.0

76.5

76.0

80

79

78

V

I

= 36 V

= 54 V

= 72 V

77

76

75

74

V

I

= 36 V

= 54 V

= 72 V

I

75.5

75.0

74.5

74.0

73.5

73

72

3

4

5

6

7

8

9

10 11 12

13 14 15

0

5

10

15

20

(A)

25

30

OUTPUT CURRENT, I (A)

O

OUTPUT CURRENT, I

O

8-1455 (C)

8-1457 (C)

Figure 10. Typical JW075F Converter Efficiency vs.

Output Current at Room Temperature

Figure 12. Typical JW150F Converter Efficiency vs.

Output Current at Room Temperature

Lineage Power

7

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Characteristic Curves (continued)

1.5 A

3.3 V

15.0 A

7.5 A

30.0 A

TIME, t (50 µs/div)

8-2001 (C)

TIME, t (1 µs/div)

Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor

across the load.

8-2002 (C)

Figure 13. Typical JW150F Output Ripple Voltage at

Room Temperature, I^O= Full Load

Figure 15. Typical JW150F Transient Response to

Step Decrease in Load from 50% to 25%

of Full Load at Room Temperature and

48 V Input (Waveform Averaged to

Eliminate Ripple Component.)

3.30 V

22.5 A

0

15.0 A

TIME, t (50 µs/div)

8-2000 (C)

Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor

across the load.

0

TIME, t (5 ms/div)

Figure 14. Typical JW150F Transient Response to

Step Increase in Load from 50% to 75%

of Full Load at Room Temperature and

48 V Input (Waveform Averaged to

8-1458 (C)

Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor

across the load.

Eliminate Ripple Component.)

Figure 16. Typical Start-Up from Remote On/Off

JW150F1; I^O= IO, max

8

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Test Configurations

SENSE(+)

CONTACT AND

DISTRIBUTION LOSSES

V

I

(+)

V

O

(+)

TO OSCILLOSCOPE

I

O

I

CURRENT

PROBE

LOAD

SUPPLY

L

T E S T

VI (+)

12 µH

I(–)

V

O

(–)

C

S

220 µF

ESR < 0.1 •

@ 20 °C, 100 kHz

CONTACT

RESISTANCE

33 µF

ESR < 0.7 •

@ 100 kHz

BATTERY

SENSE(–)

8-749 (C)

VI (–)

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.

[V^O(+) – VO(–)]IO

[VI(+) – VI(–)]II

⎛

⎝

⎞

⎠

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

η =

x 100

%

Figure 17. Input Reflected-Ripple Test Setup

Figure 19. Output Voltage and Efficiency

Measurement Test Setup

Design Considerations

Input Source Impedance

COPPER STRIP

V

O

(+)

(–)

RESISTIVE

LOAD

1.0 µF

10 µF

SCOPE

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 17, a 33 µF

electrolytic capacitor (ESR < 0.7 ¾ 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.

8-513 (C).d

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 18. Peak-to-Peak Output Noise

Measurement Test Setup

Lineage Power

9

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Remote On/Off

Safety Considerations

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).

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 (code suffix 1) is the factory-preferred configura-

tion.

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 VI(–) terminal (Von/off). The

switch can be an open collector or equivalent (see

Figure 20). A logic low is Von/off = 0 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.

n 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 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-

sible.

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

following:

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 ON/OFF pin to VI(–).

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

I

on/off

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.

ON/OFF

V

on/off

SENSE(+)

(+)

V

O

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

when all inputs are ELV.

LOAD

V

O

(–)

V

I

(+)

(–)

SENSE(–)

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

mum 20 A normal-blow fuse in the ungrounded lead.

Feature Descriptions

Overcurrent Protection

8-720 (C).c

Figure 20. Remote On/Off Implementation

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 tai-

lout characteristics (output current decrease or

increase). The unit operates normally once the output

current is brought back into its specified range.

10

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Output Voltage Set-Point Adjustment

(Trim)

Feature Descriptions (continued)

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, i.e.:

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

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

With an external resistor between the TRIM and

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

(V^{O, adj}) decreases (see Figure 22). The following equa-

tion determines the required external-resistor value to

obtain a percentage output voltage change of ý%.

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

must not exceed the minimum value of the output over-

voltage protection. This limit includes any increase in

voltage due to remote-sense compensation and output

voltage set-point adjustment (trim). See Figure 21.

100

⎛

⎞

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.

R^adj-down= --------- – 2 kΩ

⎝

⎠

Δ%

The test results for this configuration are displayed in

Figure 23. This figure applies to all output voltages.

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.

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 24).

The following equation determines the required exter-

nal-resistor value to obtain a percentage output voltage

change of ý%.

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.

(100 + 2Δ%)

(100 + Δ%)

V_O

⎛

⎞

⎠

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

R^adj-up= -------------------------------------- –

kΩ

⎝

Δ%

1.225Δ%

The test results for this configuration are displayed in

Figure 25.

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

must not exceed the minimum value of the output over-

voltage protection. This limit includes any increase in

voltage due to remote-sense compensation and output

voltage set-point adjustment (trim). See Figure 21.

SENSE(+)

SENSE(–)

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.

V

I

(+)

(–)

VO(+)

I

O

SUPPLY

LOAD

I

VO(–)

CONTACT

RESISTANCE

CONTACT AND

DISTRIBUTION LOSSES

8-651 (C).m

Figure 21. Effective Circuit Configuration for

Single-Module Remote-Sense Operation

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

11

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Feature Descriptions (continued)

Output Voltage Set-Point Adjustment

10M

(Trim) (continued)

1M

V

I

(+)

VO(+)

ON/OFF

CASE

SENSE(+)

100k

10k

TRIM

R

LOAD

R

adj-down

V

I

(–)

SENSE(–)

VO(–)

0

2

4

6

8

10

% CHANGE IN OUTPUT VOLTAGE (•%)

8-748 (C).b

8-2090 (C)

Figure 22. Circuit Configuration to Decrease

Output Voltage

Figure 25. Resistor Selection for Increased Output

Voltage

Output Overvoltage Protection

1M

The output overvoltage clamp consists of control cir-

cuitry, independent of the primary regulation loop, that

monitors the voltage on the output terminals. The con-

trol loop of the clamp has a higher voltage set point

than the primary loop (see Feature Specifications

table). This provides a redundant voltage control that

reduces the risk of output overvoltage.

100k

10k

1k

Overtemperature Protection

The 100 W and 150 W modules feature an overtemper-

ature protection circuit to safeguard against thermal

damage.

100

0

10

20

30

40

% CHANGE IN OUTPUT VOLTAGE (•%)

The circuit shuts down the module when the maximum

case temperature is exceeded. The module restarts

automatically after cooling.

8-879 (C)

Figure 23. Resistor Selection for Decreased

Output Voltage

Thermal Considerations

Introduction

V

I

(+)

VO(+)

ON/OFF

CASE

SENSE(+)

R

adj-up

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 (TC)

occurs at the position indicated in Figure 26.

R

LOAD

TRIM

V

I

(–)

SENSE (–)

VO(–)

8-715 (C).b

Figure 24. Circuit Configuration to Increase

Output Voltage

12

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Note that the natural convection condition was mea-

Thermal Considerations (continued)

Introduction (continued)

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 31 is

shown in the following example.

MEASURE CASE

38.0 (1.50)

TEMPERATURE HERE

Example

7.6 (0.3)

What is the minimum airflow necessary for a JW100F

operating at V^I= 54 V, an output current of 20 A, and a

maximum ambient temperature of 40 °C?

V

I

(+)

V (+)

O

+ SEN

ON/OFF

CASE

TRIM

Solution

– SEN

Given: VI = 54 V

IO = 20 A

VO (–)

V (–)

I

TA = 40 °C

Determine PD (Use Figure 29.):

PD = 15.8 W

8-716 (C).f

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

Measurements shown in millimeters and (inches).

Determine airflow (v) (Use Figure 31.):

v = 1.7 m/s (340 ft./min.)

Figure 26. Case Temperature Measurement

Location

9

8

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.

7

V

I

= 75 V

6

5

V

I = 54 V

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.

VI = 36 V

4

3

2

For additional information on these modules, refer to

the Thermal Management JC-, JFC-, JW-, and JFW-

Series 50 W to 150 W Board-Mounted Power Modules

Technical Note

0

1

2

3

4

5

6

7

(A)

8

9

10

OUTPUT CURRENT, I

O

(TN97-008EPS).

8-1459 (C)

Figure 27. JW050F Power Dissipation vs.

Output Current

Heat Transfer Without Heat Sinks

Increasing airflow over the module enhances the heat

transfer via convection. Figure 31 shows the maximum

power that can be dissipated by the module without

exceeding the maximum case temperature versus local

ambient temperature (T^A) for natural convection

through 4 m/s (800 ft./min.).

Lineage Power

13

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Thermal Considerations (continued)

30

Heat Transfer Without Heat Sinks (continued)

25

20

16

14

15

12

10

8

10

5

V

I

= 36 V

= 54 V

= 7356 V

I

V

I

= 36 V

= 54 V

= 7356 V

0

6

0

5

10

15

20

(A)

25

30

I

4

OUTPUT CURRENT, I

O

2

0

8-1462 (C)

Figure 30. JW150F Power Dissipation vs.

Output Current

0

2

4

6

8

10

(A)

12

14

OUTPUT CURRENT, I

O

8-1460 (C)

Figure 28. JW075F Power Dissipation vs.

Output Current

35

4.0 m/s (800 ft./min.)

3.5 m/s (700 ft./min.)

3.0 m/s (600 ft./min.)

30

2.5 m/s (500 ft./min.)

2.0 m/s (400 ft./min.)

1.5 m/s (300 ft./min.)

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

0.5 m/s (100 ft./min.)

25

20

15

10

17

16

15

14

13

12

11

10

9

8

V

I

= 36 V

= 54 V

= 7356 V

5

0

0.1 m/s (NAT. CONV.)

(20 ft./min.)

7

6

5

4

3

2

1

0

I

0

10

20

30

40

50

60

70

80

(°C)

90 100

LOCAL AMBIENT TEMPERATURE, T

A

8-1150 (C).a

0

2

4

6

8

10

12

14

16

18 20

Figure 31. Forced Convection Power Derating with

No Heat Sink; Either Orientation

OUTPUT CURRENT, I

O

(A)

8-1461 (C)

Figure 29. JW100F Power Dissipation vs.

Output Current

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. If a larger hole is used, the

mounting torque from the pin side must not exceed

0.25 N-m (2.2 in.-lb.).

14

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Example

Thermal Considerations (continued)

Heat Transfer with Heat Sinks (continued)

If an 85 °C case temperature is desired, what is the

minimum airflow necessary? Assume the JW100F

module is operating at V^I= 54 V and an output current

of 20 A, maximum ambient air temperature of 40 °C,

and the heat sink is 1/2 inch.

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 (ΔTC, max) divided by the

module power dissipation (P^D):

Solution

Given: VI = 54 V

IO = 20 A

(T^C– TA)

ΔTC, max

θca = --------------------

=

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

PD

P^D

TA = 40 °C

The location to measure case temperature (TC) is

shown in Figure 26. Case-to-ambient thermal resis-

tance vs. airflow is shown, for various heat sink config-

urations and heights, in Figure 32. These curves were

obtained by experimental testing of heat sinks, which

are offered in the product catalog.

TC = 85 °C

Heat sink = 1/2 in.

Determine PD by using Figure 29:

PD = 15.8 W

Then solve the following equation:

8

(T^C– TA)

θca = ------------------------

1 1/2 IN. HEAT SINK

7

P^D

1 IN. HEAT SINK

1/2 IN. HEAT SINK

1/4 IN. HEAT SINK

6

5

4

3

2

1

0

(85 – 40)

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

θca =

15.8

NO HEAT SINK

θca = 2.8 °C/W

Use Figure 32 to determine air velocity for the 1/2 inch

heat sink.

The minimum airflow necessary for the JW100F

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

0

0.5

1.0

1.5

2.0

2.5

3.0

(100)

(200)

(300)

(400)

(500)

(600)

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

Custom Heat Sinks

8-1153 (C)

Figure 32. Case-to-Ambient Thermal Resistance

Curves; Either Orientation

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) shown below (Figure 33).

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 Figure 32 had a

thermal-conductive dry pad between the case and the

heat sink to minimize contact resistance. The use of

Figure 32 is shown in the following example.

T

C

T

S

TA

∅

D

P

θ

cs

θsa

8-1304 (C)

Figure 33. Resistance from Case-to-Sink and

Sink-to-Ambient

Lineage Power

15

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Thermal Considerations (continued)

Custom Heat Sinks (continued)

Solder, Cleaning, and Drying

Considerations

Post solder cleaning is usually the final circuit-board

assembly process prior to electrical testing. The result

of inadequate circuit-board cleaning and drying can

affect both the reliability of a power module and the

testability of the finished circuit-board assembly. For

guidance on appropriate soldering, cleaning, and dry-

ing procedures, refer to the Board-Mounted Power

Modules Soldering and Cleaning Application Note

(AP97-021EPS).

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

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.

EMC Considerations

For assistance with designing for EMC compliance,

please refer to the FLTR100V10 data sheet

(DS98-152EPS).

Layout Considerations

Copper paths must not be routed beneath the power

module mounting inserts. For additional layout guide-

lines, refer to the FLTR100V10 data sheet

(DS98-152EPS).

16

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 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) MAX

61.0

(2.40)

MAX

Side View

SIDE LABEL*

12.70 ± 0.5

(0.500 ± 0.020)

2.06 (0.081) DIA

5.1 (0.20) MIN

1.02 (0.040) DIA

SOLDER-PLATED

BRASS, 7 PLACES

SOLDER-PLATED BRASS,

2 PLACES (–OUTPUT

AND +OUTPUT)

Bottom View

MOUNTING INSERTS

M3 x 0.5 THROUGH,

4 PLACES

12.7 (0.50)

5.1 (0.20)

V

I

(–)

VO (–)

10.16

(0.400)

10.16

(0.400) 17.78

(0.700)

CASE

–SEN

TRIM

50.8

(2.00)

25.40

(1.000)

25.40

(1.000)

35.56

(1.400)

35.56

(1.400)

ON/OFF

+SEN

V

I

(+)

VO (+)

48.26

(1.900)

4.8

(0.19)

48.3 (1.90)

8-1945 (C).c

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

Lineage Power

17

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Recommended Hole Pattern

Component-side footprint.

Dimensions are in millimeters and (inches).

57.9 (2.28) MAX

4.8

(0.19)

48.3 (1.90)

48.26

(1.900)

VO (+)

VI (+)

35.56

+SEN

TRIM

–SEN

ON/OFF

CASE

(1.400)

25.40

(1.000)

50.8

25.40

(2.00)

(1.000)

61.0

(2.40)

MAX

17.78

10.16 (0.700)

(0.400)

10.16

(0.400)

V

I

(–)

VO (–)

5.1 (0.20)

12.7 (0.50)

MOUNTING INSERTS

MODULE OUTLINE

8-1945 (C).c

Ordering Information

Table 4. Device Codes

Input

Voltage

Output

Voltage

Output

Power

Remote On/Off

Device

Code

Comcode

Logic

48 V

3.3 V

33 W

49.5 W

66 W

Negative

Positive

JW050F1

JW075F1

JW100F1

JW150F1

JW050F

JW075F

JW100F

JW150F

107253171

107431256

107253189

107361461

107309775

107477374

107309791

107018962

99 W

33 W

49.5 W

66 W

99 W

18

Lineage Power

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

Ordering Information (continued)

Table 5. 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)

D000-c.cvs

D000-d.cvs

Figure 34. Longitudinal Heat Sink

Figure 35. Transverse Heat Sink

Lineage Power

19

JW050F, JW075F, JW100F, JW150F Power Modules:

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W

Data Sheet

April 2008

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

India Headquarters

Tel: +91 80 28411633

(Outside U.S.A .: +1-97 2-2 84-2626)

www.line agepower.com

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

DS99-289EPS (Replaces DS99-288EPS)

电子百科

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