LW010_技术文档

Data Sheet

August 1998

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Features

■ Low profile: 10.2 mm x 25.4 mm x 50.8 mm

(0.4 in. x 1.0 in. x 2.0 in.) with standoffs

(9.6 mm (0.38 in.) with standoffs recessed)

■ Wide input voltage range: 18 Vdc to 36 Vdc or

36 Vdc to 75 Vdc

■ Output current limiting, unlimited duration

■ Output overvoltage clamp

■ Undervoltage lockout

■ Input-to-output isolation: 1500 V

■ Operating case temperature range: –40 °C to

+105 °C

■ UL* 1950 Recognized, CSA^†22.2 No. 950-95

Certified, IEC950, and VDE0805 Licensed

The LC/LW010- and LC/LW015-Series Power Modules use

advanced, surface-mount technology and deliver high-quality,

compact, dc-dc conversion at an economical price.

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

directives^‡

Options

■ Within FCC and VDE Class A radiated limits

■ Remote on-off

Applications

■ Choice of on/off configuration

■ Short pin: 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.)

■ Telecommunications

■ Synchronization (cannot be ordered on units with

■ Distributed power architectures

■ Private branch exchange (PBX)

■ Voice and data multiplexing

remote on/off)

■ Output voltage adjust: 90% to 110% of V^{O, nom}

(single outputs only)

■ Tight output voltage tolerance

Description

The L Single- and Dual-Output-Series Power Modules are low-profile, dc-dc converters that operate over an

input voltage range of 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc and provide one or two precisely regulated out-

puts. The outputs are isolated from the input, allowing versatile polarity configurations and grounding connec-

tions. The modules have a maximum power rating of 10 W to 15 W and efficiencies of up to 84% for a 5 V

output and 82% for a 3.3 V output. Built-in filtering for both input and output minimizes the need for external fil-

tering.

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

† CSA is a registered trademark of Canadian Standards Association.

‡ 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.)

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

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

Device

Symbol

Min

Typ

Max

Unit

Input Voltage:

Continuous

LC

LW

VI

VI, trans

0

—

50

80

100

Vdc

V

Transient (100 ms)

Operating Case Temperature

All

TC

–40

—

105*

°C

(See Derating Curves, Figures 43—45.)

Storage Temperature

I/O Isolation

All

Tstg

–55

—

125

°C

—

1500

Vdc

* Maximum case temperature varies based on power dissipation. See derating curves, Figures 43—45, for details.

Electrical Specifications

Table 1. Input Specifications

Parameter

Device

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

LC

LW

V^I

18

36

24

48

36

75

Vdc

Maximum Input Current

(V^I= 0 to V^{I, max}; I^O= I^{O, max}; see Figures

1—4.)

LC

LW

I^{I, max}

—

1.6

800

A

mA

I²t

I^I

A²s

Inrush Transient

All

—

0.2

Input Reflected-ripple Current

5

—

mAp-p

(5 Hz to 20 MHz; 12 µH source imped-

ance; T^A= 25 °C; see Figure 33.)

Input Ripple Rejection (100 Hz—120 Hz)

All

—

45

—

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 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.

2

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Electrical Specifications (continued)

Table 2. Output Specifications

Device Code

or Suffix

Parameter

Symbol

Min

Typ

Max

Unit

Output Voltage Set Point

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

D

G*

F

A

B

V^{O, set}

V^{O1, set}

V^{O2, set}

V^{O1, set}

V^{O2, set}

V^{O1, set}

V^{O2, set}

1.92

—

3.17

2.0

2.5

3.3

2.08

—

Vdc

3.43

5.20

12.48

15.60

5.25

–5.25

12.60

4.85

5.0

11.52

14.40

4.75

–4.75

11.40

–11.40

14.25

–14.25

12.0

15.0

5.0

–5.0

12.0

–12.0 –12.60

15.0 15.75

–15.0 –15.75

C

AJ

BK

CL

Output Voltage

D

G*

F

A

B

V^{O, set}

V^{O1, set}

V^{O2, set}

V^{O1, set}

V^{O2, set}

V^{O1, set}

V^{O2, set}

1.90

—

3.13

—

2.5

—

2.10

—

3.47

Vdc

(Over all line, load, and temperature

conditions until end of life; see

Figures 35 and 37.)

4.80

5.25

11.40

14.25

4.5

12.60

15.75

5.5

C

AJ

–4.5

–5.5

BK

CL

10.80

–10.80

13.50

–13.50

13.20

–13.20

16.50

–16.50

Output Regulation

(See Figures 5—11):

Line (VI = V^{I, min}to V^{I, max})

A, F, D, G*

B, C

Lx010 A, F, D, G*

B, C

Lx015 A, F, D, G*

B, C

—

0.01

—

0.1

—

0.1

25

0.5

5

0.1

10

0.2

15

0.2

100

2.0

mV

%VO

mV

%VO

mV

%VO

mV

%VO

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

Temperature

(T^C= –40 °C to +85 °C)

A, F, D, G*

B, C

Output Ripple and Noise

(Across 2 x 0.47 µF ceramic capaci-

tors; see Figures 34 and 36.):

RMS

A, D, F, G*

AJ, B, C

BK, CL

A, D, F, G*

AJ, B, C

BK, CL

—

30

35

50

100

120

150

mVrms

mVp-p

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

External Load Capacitance

A, F, D, G*

B, C

—

1000

200

µF

* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).

Tyco Electronics Corp.

3

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Electrical Specifications (continued)

Table 2. Output Specifications (continued)

Device Code

or Suffix

Parameter

Output Current

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

exceed output ripple specifications,

but operation is guaranteed.)

Note: On the Lx01xF, the output

voltage may exceed

Symbol

Min

Typ

Max

Unit

Lx015D

Lx015F

Lx015A

Lx015B

Lx015C

I^O

0.35

0.25

0.15

0.12

0.10

—

3.0

1.25

1.0

A

specifications when

I^O< I^{O, min}.

Lx010D, G*

Lx010F

Lx010A

Lx010B

Lx010C

I^O

0.2

0.15

0.1

0.08

0.06

—

2.0

2.42

2.0

0.83

0.67

A

Lx010AJ

Lx010BK

Lx010CL

I^O1, I^O2

0.1

0.06

0.05

—

1.0

0.42

0.33

A

Output Current-limit Inception

(V^O= 90% V^{O, set}; see Figures

12—14.)

Lx015D

Lx015F

Lx015A

Lx015B

Lx015C

I^O

—

7.5

6.5

5

3.1

2.5

A

Lx010D, G*

Lx010F

Lx010A

Lx010B

Lx010C

I^O

—

7.0

5

4

2.5

2

A

Lx010AJ

Lx010BK

Lx010CL

I^O1, I^O2

—

4.0

2.5

A

Output Short-circuit Current

(V^O= 0.25 V)

Lx015D

Lx015F

Lx015A

Lx015B

Lx015C

I^O

—

8.5

7.5

4.5

A

Lx010D, G*

Lx010F

Lx010A

Lx010B

Lx010C

I^O

—

8

7.5

6

3.5

A

Lx010AJ

Lx010BK

Lx010CL

I^O1, I^O2

—

6.0

3.5

A

* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).

4

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Electrical Specifications (continued)

Table 2. Output Specifications (continued)

Device Code

or Suffix

Parameter

Symbol

Min

Typ

Max

Unit

Efficiency

(VI = VI, nom; I^O= I^{O, max}; T^A= 25 °C;

see Figures 15—28, 35, and 37.)

LC015D

LC015F

LC015A

η

64

74

77

73

67

77

80

76

—

%

LC015B, C

LC010D, G*

LC010F

LC010A, B, C

LC010AJ, BK, CL

η

65

71

75

68

75

79

78

—

%

LW015D

LW015F

LW015A

η

66

76

79

75

69

79

82

78

—

%

LW015B, C

LW010D, G*

LW010F

LW010A, B, C

LW010AJ, BK, CL

η

67

73

77

70

76

81

80

—

%

Efficiency

(VI = VI, nom; I^O= 2 A; T^A= 25 °C;

see Figures 15, 18, 22, and 25.)

LC015F

LC015A

LW015F

LW015A

η

—

79

82

84

—

%

Switching Frequency

All

—

265

—

kHz

Dynamic Response

(for duals: I^O1or I^O2= I^{O, max};

∆I^O/∆t = 1A/10 µs; V^I= V^{I, nom};

T^A= 25 °C; see Figures 29 and 30.):

Load Change from I^O= 50% to 75%

of I^{O, max}:

Peak Deviation

Settling Time

All

—

2

0.8

—

%V^{O, set}

ms

(V^O< 10% of peak deviation)

Load Change from I^O= 50% to 25%

of I^{O, max}:

Peak Deviation

Settling Time

All

—

2

0.8

—

%V^{O, set}

ms

(V^O< 10% of peak deviation)

* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).

Table 3. Isolation Specifications

Parameter

Min

Typ

Max

Unit

Isolation Capacitance

Isolation Resistance

—

10

600

—

pF

M¾

Tyco Electronics Corp.

5

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Electrical Specifications (continued)

Table 4. General Specifications

Parameter

Min

Typ

Max

Unit

Calculated MTBF (I^O= 80% of I^{O, max}; T^C= 40 °C):

Lx010

Lx015

Weight

Hand Soldering

—

7,800,000

5,400,000

—

hours

g (oz.)

s

28.3 (1.0)

12

—

(soldering iron 3 mm (0.125 in.) tip, 425 °C)

Table 5. Feature Specifications

Device Code

or Suffix

Parameter

Symbol

Min

Typ

Max

Unit

Remote On/Off Signal Interface (optional):

(V^I= 0 V to V^I, ^max; open collector or

equivalent compatible; signal referenced to

V^I(–) terminal. See Figure 38 and Feature

Descriptions.):

Positive Logic— Device Code Suffix “4”:

Logic Low—Module Off

Logic High—Module On

Negative Logic— Device Code Suffix “1”:

Logic Low—Module On

Logic High—Module Off

Module Specifications:

On/Off Current—Logic Low

On/Off Voltage:

All

I^on/off

—

1.0

mA

Logic Low

Logic High (I^on/off= 0)

All

V^on/off

–0.7

—

1.2

10

V

Open Collector Switch Specifications:

Leakage Current During Logic High

(V^on/off= 10 V)

All

I^on/off

—

50

µA

V

Output Low Voltage During Logic Low

(I^on/off= 1 mA)

V^on/off

1.2

Turn-on Delay and Rise Times

(At 80% of I^{O, max}; T^A= 25 °C; see Figures 31

and 32.):

Case 1: On/Off Input Is Set for Unit On and

then Input Power Is Applied (delay from

point at which V^I= V^{I, min}until V^O= 10% of

V^{O, nom}).

Case 2: Input Power Is Applied for at Least

One Second, and then the On/Off Input Is

Set to Turn the Module On (delay from

point at which on/off input is toggled until

V^O= 10% of V^{O, nom}).

T^delay

—

5

1

20

10

ms

All

T^delay

Output Voltage Rise Time

(time for V^Oto rise from 10% of V^{O, nom}to

90% of V^{O, nom})

Output Voltage Overshoot

(at 80% of I^{O, max}; T^A= 25 °C)

T^rise

—

0.2

5

ms

%

All

—

6

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Electrical Specifications (continued)

Table 5. Feature Specifications (continued)

Parameter

Device Code

or Suffix

Symbol

Min

Typ

Max

Unit

Output Voltage Set-point Adjustment Range

(optional: single outputs only)

A, B, F

—

90

—

110

100

125

%V^{O, nom}

C

D

Output Overvoltage Clamp

(V^O, ^clampmay be set higher on units with out-

put voltage set-point adjustment option.)

D

F

A

B

C

V^{O, clamp}

V^{O1, clamp}

V^{O2, clamp}

V^{O1, clamp}

V^{O2, clamp}

V^{O1, clamp}

V^{O2, clamp}

2.60

3.7

5.6

—

4.0

5.7

7.0

V

13.2

16.5

5.6

–5.6

13.2

–13.2

16.5

–16.5

16.0

21.0

7.0

–7.0

18.0

–18.0

21.0

–21.0

AJ

BK

CL

Undervoltage Lockout

LCxxx

LWxxx

V^uvlo

11

20

14

27

—

V

Characteristic Curves

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0

5

10

15

20

25

30

35

40

0.1

0.0

INPUT VOLTAGE, V I (V)

0

5

10

15

20

25

30

35

40

8-1786(C)

INPUT VOLTAGE, V I (V)

Figure 2. LC015 Input Current vs. Input Voltage at

I^O= I^O, ^maxand T^C= 25 °C

8-1785(C)

Figure 1. LC010 Input Current vs. Input Voltage at

I^O= I^O, ^maxand T^C= 25 °C

Tyco Electronics Corp.

7

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Characteristics Curves (continued)

5.15

5.10

5.05

5.00

0.50

0.45

V

I

= LOW LINE

= NOM LINE

I = HIGH LINE

I

0.40

0.35

0.30

0.25

0.20

0.15

0.10

4.95

4.90

0.05

0.00

0.0

0.1 0.2 0.3

0.5 0.6 0.7 0.8 0.9 1.0

0.4

0

10

20

30

40

50

60

70

80

OUTPUT CURRENT 1, IO1 (A)

INPUT VOLTAGE, V ^I(V)

8-1790(C)

8-1787(C)

Note: Output2 has characteristics similar to output1 when

I^O1= 0.5 A and I^O2varies.

Figure 3. LW010 Input Current vs. Input Voltage at

I^O= IO, max and TC = 25 °C

Figure 6. Lx010AJ Typical Load Regulation of

Output1 with Fixed I^O2= 0.5 A at

T^C= 25 °C

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

5.25

5.20

VI = LOW LINE

5.15

5.10

VI = NOM LINE

VI = HIGH LINE

5.05

0

10

20

30

40

50

60

70

80

INPUT VOLTAGE, V I (V)

5.00

4.95

8-1788(C)

Figure 4. LW015 Input Current vs. Input Voltage at

0.0 0.1 0.2 0.3 0.4 0.5 0.6

0.8 0.9 1.0

8-1791(C)

0.7

I^O= IO, max and TC = 25 °C

OUTPUT CURRENT 2, I^O2(A)

1.003

1.002

Note: Output2 has characteristics similar to output1 when

I^O2= 0.1 A and I^O1varies.

1.001

Figure 7. Lx010AJ Typical Cross Regulation,

V^O1vs. I^O2with Fixed I^O1= 0.1 A at

T^C= 25 °C

VI = LOW LINE

1.000

0.999

VI = NOM LINE

VI = HIGH LINE

0.998

0.997

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

NORMALIZED OUTPUT CURRENT (I^O/IO, max)

8-1789(C)

Figure 5. Lx010x/Lx015x Single-Output Load

Regulation, Normalized Output Voltage

vs. Normalized Output Current at

T^C= 25 °C

8

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Characteristics Curves (continued)

1.023

1.020

1.016

1.013

1.010

1.007

1.003

1.000

0.996

5.00

4.95

IO = IO, min

IO = IO, max

4.90

VI = LOW LINE

VI = NOM LINE

VI = HIGH LINE

4.85

VI = HIGH LINE

VI = NOM LINE

4.80

4.75

VI = LOW LINE

0.0

0.15

0.30

0.45

0.60

0.75

0.90

1.05

NORMALIZEDOUTPUT CURRENT 2 (IO2/IO2, max)

8-1794(C)

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Note: Output2 has characteristics similar to output1 when

I^O2= I^O, min and I^O1varies.

OUTPUT CURRENT 2, IO2 (A)

8-1792(C)

Note: Output2 has characteristics similar to output1 when

I^O2= 1.0 A and I^O1varies.

Figure 10. Lx010BK, CL Typical Cross Regulation,

Normalized V^O1vs. Normalized IO2 with

Fixed I^O1= IO, min at TC = 25 °C

Figure 8. Lx010AJ Typical Cross Regulation,

V^O1vs. IO2 with Fixed IO1 = 1.0 A at

T^C= 25 °C

1.006

1.000

0.993

0.987

0.980

1.020

1.016

V

I

= NOM LINE

1.013

1.010

1.006

1.003

1.000

VI

= LOW LINE

VI = LOW LINE

0.973

0.966

0.960

0.953

V

I = NOM LINE

_I= HIGH LINE

IO = IO, min

IO = IO, max

IO = IO, min

IO = IO, max

0.0

0.15

0.30

0.45

0.60

0.75

0.90

1.05

0.996

0.993

0.990

VI = HIGH LINE

NORMALIZEDOUTPUT CURRENT 2 (IO2/IO2, max)

8-1795(C)

0.0

0.15

0.30

0.45

0.60

0.75

0.90

1.05

Note: Output2 has characteristics similar to output1 when

I^O2= I^O, ^maxand I^O1varies.

NORMALIZEDOUTPUT CURRENT (IO1/IO1, max)

8-1793(C)

Figure 11. Lx010BK, CL Typical Cross Regulation,

Normalized V^O1vs. Normalized I^O2with

Fixed I^O1= I^O, ^maxat T^C= 25 °C

Note: Output2 has characteristics similar to output1 when

I^O1= (0.5 * I^O, ^max) and I^O2varies.

Figure 9. Lx010BK, CL Load Regulation of Output1

with Fixed I^O2= 0.5 * IO, max at TC = 25 °C,

Normalized V^O1vs. Normalized Current IO1

9

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Characteristics Curves (continued)

1.0

1.2

1.0

0.8

0.5

V^I= LOW LINE

VI = NOM LINE

V^I= HIGH LINE

VI = LOW LINE

0.6

VI = NOM LINE

_VI= HIGH LINE

0.4

0.0

0.2

0.0

0.0 0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

NORMALIZED OUTPUT CURRENT 1

WITH OUTPUT CURRENT 2

SET TO I^O, max (IO1/IO1, max)

0.00

0.25 0.50

0.75 1.00

1.25 1.50

1.75 2.00

OUTPUT CURRENT NORMALIZEDTO IO, max (IO/IO, max)

8-1798(C)

8-1796(C)

Note: Output2 has characteristics similar to output1 when

output1 is set to I^O, ^max.

Figure 12. Lx010x/Lx015x Single-Output

Normalized Output Current vs.

Normalized Output Voltage at

T^C= 25 °C

Figure 14. Lx010xx Dual-Output Normalized Output

Current vs. Normalized Output Voltage

at T^C= 25 °C with Other Output at

I^O= IO, max

1.0

86

84

82

80

0.5

VI = NOM LINE

VI = LOW LINE

VI = HIGH LINE

78

VI = 18 V

VI = 20 V

76

VI = 27 V

VI = 36 V

74

0.0

0.0 0.5

72

70

1.0

1.5

2.0

2.5

3.0

3.5

4.0 4.5

NORMALIZED OUTPUT CURRENT 1

WITH OUTPUT CURRENT 2

SET TO IO, min (IO1/IO1, max)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

OUTPUT CURRENT, IO (A)

8-1797(C)

8-1800(C)

Note: Output2 has characteristics similar to output1 when

output1 is set to I^O, ^min.

Figure 15. LC015A Typical Efficiency vs. Output

Current at T^C= 25 °C

Figure 13. Lx010xx Dual-Output Normalized Output

Current vs. Normalized Output Voltage

at T^C= 25 °C with Other Output at I^O, ^min

10

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Characteristics Curves (continued)

82

80

85

80

78

76

74

VI = 36 V

V^I= 27 V

V^I= 18 V

75

70

72

70

V

VI

I

= 18 V

= 27 V

= 36 V

65

60

0.0 0.1 0.2 0.3 0.4

0.6 0.7 0.8 0.9 1.0

0.5

NORMALIZED OUTPUT CURRENT (I^O/IO, max)

8-1803(C)

0.0

0.16

0.32

0.48

0.64

0.80

0.96

NORMALIZED OUTPUT CURRENT (IO/IO, max)

Figure 19. LC010A, B, C Typical Efficiency vs.

8-1801(C)

Normalized Output Current at T^C= 25 °C

Figure 16. LC015B, C Typical Efficiency vs.

Normalized Output Current at T^C= 25 °C

80

75

70

65

60

55

50

45

40

72

70

68

66

64

VI = 36 V

VI = 27 V

VI = 18 V

VI = 36 V

V^I= 27 V

V^I= 18 V

62

0.0

0.5

1.0

1.5

2.0

2.5

60

58

(A)

OUTPUT CURRENT, IO

0

0.5

1

1.5

2

2.5

3

8-1804(C)

OUTPUT CURRENT, I^O(A)

Figure 20. LC010F Typical Efficiency vs. Output

8-2049(C)

Current at T^C= 25 °C

Figure 17. LC010D and LC015D Typical Efficiency

vs. Output Current at T^C= 25 °C

80

78

76

74

72

70

82

80

VI = 36 V

78

76

68

VI = 24 V

66

VI = 18 V

64

62

60

74

VI = 36 V

0.10 0.23

0.35

0.47

0.59 0.71

0.83

0.95

VI = 27 V

72

VI = 18 V

NORMALIZED OUTPUT CURRENT,

IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

70

0.0

0.5

1.0

1.5

2.0

2.5

3.0

8-1805(C)

OUTPUT CURRENT, IO

(A)

Figure 21. LC010AJ, BK, CL Typical Efficiency vs.

8-1802(C)

Normalized Output Current at T^C= 25 °C

Figure 18. LC015F Typical Efficiency vs. Output

Current at T^C= 25 °C

11

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Characteristics Curves (continued)

85

80

90

75

70

65

60

85

80

75

70

VI = 75 V

VI

= 48 V

VI = 36 V

V^I= 75 V

VI = 48 V

VI = 36 V

0.0

0.5

1.0

1.5

2.0

2.5

3.0

65

60

OUTPUT CURRENT, I

O

(A)

8-1861(C)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

OUTPUT CURRENT, IO (A)

Figure 25. LW015F Typical Efficiency vs. Output

8-1864(C)

Current at T^C= 25 °C

Figure 22. LW015A Typical Efficiency vs. Output

Current at T^C= 25 °C

82

80

82

80

78

76

78

VI = 75 V

VI = 48 V

VI = 36 V

74

72

76

VI = 75 V

VI = 48 V

74

VI = 36 V

70

0.0

0.14

0.20

0.43

0.57

0.71

0.86

1.0

72

NORMALIZEDOUTPUT CURRENT (IO/IO,^max)

70

8-1860(C)

0.05

0.19

0.33

0.5

0.66

0.83

1.0

NORMALIZEDOUTPUT CURRENT (IO/IO, max)

Figure 26. LW010A, B, C Typical Efficiency vs.

8-1863(C)

Normalized Output Current at T^C= 25 °C

Figure 23. LW015B, C Typical Efficiency vs.

Normalized Output Current at T^C= 25 °C

80

78

76

80

70

74

72

70

68

60

50

40

30

20

10

V

VI

I

= 75 V

= 48 V

= 36 V

66

64

62

60

V^I= 75 V

VI = 48 V

VI = 36 V

0.0

0.5

1.0

1.5

2.0

2.5

OUTPUT CURRENT, I

O

(A)

8-1859(C)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

OUTPUT CURRENT, I^O(A)

Figure 27. LW010F Typical Efficiency vs. Output

8-1862(C)

Current at T^C= 25 °C

Figure 24. LW010D, 015D Typical Efficiency vs.

Output Current at T^C= 25 °C

12

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Characteristics Curves (continued)

85

80

1.0

75

70

0

1.0

VI = 75 V

VI = 48 V

VI = 36 V

65

60

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

NORMALIZED OUTPUT CURRENT,

IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

8-1858(C)

0

Figure 28. LW010AJ, BK, CL Typical Efficiency vs.

TIME, t (2 ms/div)

Normalized Output Current at T^C= 25 °C

8-1806(C)

Figure 31. Typical Output Voltage Start-Up when

Input Voltage Is Applied; I^O= 80% of

I^O, max, VI = Nominal Line

1.01

1.0

0.99

0.75

0.50

1.0

0.0

TIME, t (100 µs/div)

8-1857(C)

Figure 29. Single-Output Typical Output Voltage for

Step Load Change from 50% to 75% of

I^O= IO, max

4.0

2.0

0

1.01

1.0

TIME, t (1 ms/div)

8-1807(C).a

0.99

0.50

0.25

Figure 32. Typical Output Voltage Start-Up when

Signal Is applied to Remote On/Off;

I^O= 80% of IO, max

TIME, t (100 µs/div)

8-1856(C)

Figure 30. Single-Output Typical Output Voltage for

Step Load Change from 50% to 25% of

I^O= IO, max

Tyco Electronics Corp.

13

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Test Configurations

COPPER STRIP

0.47 µF

TO OSCILLOSCOPE

VO1(+

COM

VO2(-)

)

CURRENT

PROBE

RLOAD1

SCOPE

0.47 µF

L

TEST

VI(+)

12 µH

S 220 µF

C

33 µF

IMPEDANCE < 0.1 Ω

@ 20 ˚C, 100 kHz

BATTERY

0.47 µF

RLOAD2

VI(-)

8-203(C)

8-808(C).d

Note: Input reflected-ripple current is measured with a simulated

source impedance of 12 µH. Capacitor Cs offsets possible

battery impedance. Current is measured at the input of the

module.

Note: Use four 0.47 µF ceramic capacitors. Scope measurement

should be made using a BNC socket. Position the load

between 50 mm and 75 mm (2 in. and 3 in.) from the module.

Figure 36. Peak-to-Peak Output Noise

Measurement Test Setup for Dual

Outputs

Figure 33. Input Reflected-Ripple Test Setup

COPPER STRIP

V

O

(+)

CONTACT AND

DISTRIBUTION LOSSES

RESISTIVE

LOAD

0.47 µF

SCOPE

V^O1

VI(+)

LOAD

IO

V

O

(–)

I^I

COM

SUPPLY

LOAD

8-513(C).g

VO2

VI(-)

CONTACT

RESISTANCE

Note: Use two 0.47 µF ceramic capacitors. Scope measurement

should be made using a BNC socket. Position the load

8-863(C).a

between 50 mm and 75 mm (2 in. and 3 in.) from the module.

Note: All measurements are taken at the module terminals. When

socketing, place Kelvin connections at module terminals to

avoid measurement errors due to socket contact resistance.

Figure 34. Peak-to-Peak Output Noise

Measurement Test Setup for Single

Outputs

2

[V^OJ– COM]I^OJ

∑

J = 1

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

η =

x100

CONTACT AND

DISTRIBUTION LOSSES

[V^I(+) – V^I(–)]I^I

VI(+)

V^I(-)

V^O(+)

I^I

IO

LOAD

SUPPLY

Figure 37. Output Voltage and Efficiency

Measurement Test Setup for Dual

Outputs

V^O(-)

CONTACT RESISTANCE

8-204(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.

[VO(+) – VO(–)]IO

[VI(+) – VI(–)]II

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

η =

× 100

Figure 35. Output Voltage and Efficiency

Measurement Test Setup for Single

Outputs

14

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Current Limit

Design Considerations

Input Source Impedance

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.

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 source inductance exceeds 4 µH, a 33 µF

electrolytic capacitor (ESR < 0.7 ¾ at 100 kHz)

mounted close to the power module helps ensure

stability of the unit.

Safety Considerations

Remote On/Off (Optional)

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 22.2 No. 950-95, EN60950, and

IEC950.

Two remote on/off options are available. Positive logic,

device code suffix “4”, 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, device

code suffix “1”, remote on/off turns the module off dur-

ing a logic high and on during a logic low.

For the converter output to be considered meeting the

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

the following must be true of the dc input:

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 (V^on/off). The

switch may be an open collector or equivalent (see

Figure 38). A logic low is V^on/off= –0.7 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.

■ All inputs are SELV and floating, with the output also

floating.

■ All inputs are SELV and grounded, with the output

also grounded.

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

the power module is 10 V. The maximum allowable

leakage current of the switch at V^on/off= 10 V is 50 µA.

■ Any non-SELV input must be provided with rein-

forced insulation from any other hazardous voltages,

including the ac mains, and must have a SELV reli-

ability test performed on it in combination with the

converters.

The module has internal capacitance to reduce noise

at the ON/OFF pin. Additional capacitance is not gen-

erally needed and may degrade the start-up character-

istics of the module.

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.

V^I(+)

V^I(-)

Feature Descriptions

-

Von/off

+

Output Overvoltage Clamp

REMOTE

ON/OFF

Ion/off

The output overvoltage clamp consists of control cir-

cuitry, independent of the primary regulation loop, that

monitors the voltage on the output terminals. This con-

trol loop has a higher voltage set point than the primary

loop (see Feature Specifications table). In a fault condi-

tion, 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.

8-758(C).a

Figure 38. Remote On/Off Implementation

Tyco Electronics Corp.

15

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Feature Descriptions (continued)

G

H

K

L

Lx010, 5A

5110

10,000

5110

2050

5110

2050

2.5

9.5

2.5

Output Voltage Adjustment (Optional on

Single-Output Units)

Lx010, 5B

Lx010, 5C

NA

2.5

Output voltage set-point adjustment allows the user to

increase or decrease the output voltage set point of a

module. This is accomplished by connecting an exter-

nal resistor between the TRIM pin and either the V^O(+)

or V^O(–) pins. With an external resistor between the

TRIM and V^O(+) pins (Radj-down), the output voltage set

point (V^{O, adj}) decreases (see Figure 39). The following

equation determines the required external resistor

value to obtain an output voltage change from V^{O, nom}to

V^{O, adj}:

Lx010, 5D

Lx010, 5F

0.76

0.75

1.23

2.5

5110

The combination of the output voltage adjustment

and the output voltage tolerance cannot exceed 110%

(125% for the D) of the nominal output voltage between

the V^O(+) and V^O(–) terminals.

VI(+)

VO(+)

(V^{O, adj}– L)G

(V^{O, nom}– V^{O, adj}

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

– H Ω

R^adj-down

=

)

RLOAD

TRIM

VO(-)

where Radj-down is the resistance value connected

between TRIM and V^O(+), and G, H, and L are defined

in the following table.

Radj-up

VI(-)

8-715(C).d

VI(+)

VO(+)

Figure 40. Circuit Configuration to Increase Output

Voltage

Radj-down

RLOAD

TRIM

VO(-)

The L-Series power modules have a fixed current-limit

set point. Therefore, as the output voltage is adjusted

down, the available output power is reduced. In addi-

tion, the minimum output current is a function of the

output voltage. As the output voltage is adjusted down,

the minimum required output current can increase

(i.e., minimum power is constant).

VI(–)

8-715(C).e

Figure 39. Circuit Configuration to Decrease

Output Voltage

Synchronization (Optional)

With an external resistor connected between the TRIM

and V^O(–) pins (R^adj-up), the output voltage set point

(V^{O, adj}) increases (see Figure 40). The following equa-

tion determines the required external resistor value to

obtain an output voltage from V^{O, nom}to V^{O, adj}:

With external circuitry, the unit is capable of synchroni-

zation from an independent time base with a switching

rate of 256 kHz. Other frequencies may be available;

please consult the factory for application guidelines

and/or a description of the external circuit needed to

use this feature.

GL

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

– H Ω

R^adj-up

=

[(V^{O, adj}– L) – K]

where Radj-up is the resistance value connected

between TRIM and V^O(–), and the values of G, H, K,

and L are shown in the following table:

16

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Heat Transfer Characteristics

Thermal Considerations

Increasing airflow over the module enhances the heat

transfer via convection. Figures 43 through 45 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 3.0 ms^–1(600 ft./min.).

The power module operates 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

(T^C) should be measured at the position indicated in

Figures 41 and 42.

Systems in which these power modules are used typi-

cally generate natural convection airflow rates of

0.25 ms^–1(50 ft./min.) due to other heat dissipating

components in the system. Therefore, the natural con-

vection condition represents airflow rates of approxi-

mately 0.25 ms^–1(50 ft./min.). Use of Figure 43 is

shown in the following example.

15.2

(0.6)

10.2

(0.4)

Example

-

What is the minimum airflow necessary for an LW010A

operating at 48 V, an output current of 2.0 A, and a

maximum ambient temperature of 91 °C?

LW010/LC010

dc-dc POWER MODULE

OUT

+

IN

+

Solution:

8-1363(C).b

Given: V^I= 48 V, I^O= 2.0 A (I^O, ^max), T^A= 91 °C

Determine P^D(Figure 58): P^D= 2.5 W

Determine airflow (Figure 43): v = 2.0 ms^–1

(400 ft./min.)

Note: Dimensions are in millimeters and (inches). Pin locations are

for reference only.

Figure 41. LW010 and LC010 Case Temperature

Measurement Location

3.5

MAXIMUM CASE TEMPERATURE

5.1

(0.2)

3

2.5

5.1 (0.2)

-

2

-

NATURAL CONVECTION

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

LW015/LC015

dc-dc POWER MODULE

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

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

OUT

+

IN

+

1.5

1

0.5

0

8-1363(C).c

Note: Dimensions are in millimeters and (inches). Pin locations are

for reference only.

40 45 50 55 60 65 70 75 80 85 90 95 100 105 110

MAX AMBIENT TEMPERATURE, TA (˚C)

Figure 42. LW015 and LC015 Case Temperature

Measurement Location

8-1375(C).a

Figure 43. LW010/LC010 Forced Convection Power

Derating; Either Orientation

Note that the views in Figures 41 and 42 are of the sur-

face of the modules. The temperatures at these loca-

tions should not exceed the maximum case

temperature indicated on the derating curve. The out-

put power of the module should not exceed the rated

power for the module as listed in the Ordering Informa-

tion table.

Tyco Electronics Corp.

17

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Thermal Considerations (continued)

4.5

4.0

5

3.5

3.0

MAXIMUM CASE TEMPERATURE

4.5

4

VI = 27 V

VI = 36 V

2.5

2.0

1.5

3.5

3

NATURAL CONVECTION

2.5

2

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

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

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

VI = 20 V

VI = 18 V

1.0

0.5

0.0

1.5

1

0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

0

OUTPUT CURRENT, IO (A)

0

10 20 30 40 50 60 70 80 90 100 110 120

8-1382(C)

MAX AMBIENT TEMPERATURE, TA (˚C)

Note: The power dissipation of this unit is shown at T^C= T^C, ^max

because the efficiency of this power module drops at high

temperatures.

8-1377(C).a

Figure 44. LC015 Forced Convection Power

Derating; Either Orientation

Figure 46. LC015A Power Dissipation at Maximum

Case Temperature

5

6

5

MAXIMUM CASE TEMPERATURE

4.5

4

3.5

3

4

VI

= 36 V

2.5

VI = 27 V

3

2

1.5

1

NATURAL CONVECTION

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

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

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

VI = 18 V

1

0

0.5

0

40

50

60

70

80

90

100

110

0.00

0.16

0.32

0.48

0.64

0.80

0.96

MAX AMBIENT TEMPERATURE, TA (˚C)

NORMALIZED OUTPUT CURRENT (I

O/IO, max)

8-1376(C).a

8-1808(C)

Figure 45. LW015 Forced Convection Power

Derating; Either Orientation

Figure 47. LC015B, C Typical Power Dissipation vs.

Normalized Output Current at T^C= 25 °C

18

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Thermal Considerations (continued)

4.0

3.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

VI = 36 V

2.5

VI = 27 V

2.0

1.5

VI = 27 V

VI = 18 V

0.5

0.0

1.0

0.0 0.1 0.2 0.3 0.4 0.5 0.6

0.8 0.9 1.0

0.7

VI = 18 V

0.5

0.0

NORMALIZED OUTPUT CURRENT (I^O/IO, max)

8-1811(C)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Figure 50. LC010A, B, C Typical Power Dissipation

vs. Normalized Output Current at

T^C= 25 °C

OUTPUT CURRENT, I^O(A)

8-1809(C)

Figure 48. LC010D, 015D Typical Power Dissipation

3.0

2.5

vs. Output Current at T^C= 25 °C

VI = 36 V

2.0

1.5

1.0

0.5

0.0

3.5

3.0

VI = 36 V

VI = 27 V

VI = 18 V

V

I

= 27 V

2.5

VI = 18 V

2.0

1.5

1.0

0.5

0.0

0.5

1.0

1.5

2.0

2.5

OUTPUT CURRENT, IO

(A)

8-1812(C)

Figure 51. LC010F Typical Power Dissipation vs.

Output Current at T^C= 25 °C

0.0

0.5

1.0

1.5

2.0

O (A)

2.5

3.0

OUTPUT CURRENT, I

3.5

3.0

8-1810(C)

Note: The power dissipation of this unit is shown at T^C= T^C, ^max

because the efficiency of this power module drops at high

temperatures.

2.5

2.0

Figure 49. LC015F Typical Power Dissipation vs.

Output Current at Maximum Case

Temperature

1.5

VI = 36 V

1.0

V^I= 24 V

VI = 18 V

0.5

0.0

0.1

0.2 0.3

0.4

0.5

0.6

0.8

0.9 1.0

0.7

NORMALIZED OUTPUT CURRENT,

I^O1= IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

8-1813(C)

Figure 52. LC010AJ, BK, CL Typical Power

Dissipation vs. Normalized Output

Current at T^C= 25 °C

Tyco Electronics Corp.

19

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Thermal Considerations (continued)

2.5

2.3

2.1

4.5

VI = 75 V

1.9

1.7

1.5

1.3

1.1

0.9

4.0

3.5

3.0

2.5

2.0

1.5

1.0

VI = 75 V

VI = 60 V

V

I

= 48 V

VI = 48 V

V

I = 36 V

0.7

0.5

VI = 36 V

0.5

0.0

0.2

0.4

0.6

0.8

1.2

1.4

(A)

1.6

1.8 2.0

8-2109(C)

1.0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

OUTPUT CURRENT, I

O

OUTPUT CURRENT, IO (A)

8-1383(C)

Figure 56. LW010D9 Typical Power Dissipation vs.

Output Current at T^C= 25 °C with Output

Voltage Trimmed Up to 2.5 V

Note: The power dissipation of this unit is shown at T^C= T^C, ^max

because the efficiency of this power module drops at high

temperatures.

Figure 53. LW015A Power Dissipation at Maximum

Case Temperature

4.0

3.5

5.0

4.5

3.0

4.0

3.5

VI = 60 V

2.5

2.0

1.5

1.0

0.5

0.0

VI = 60 V

VI = 75 V

3.0

2.5

2.0

1.5

1.0

0.5

0.0

VI = 48 V

VI = 75 V

VI = 36 V

VI = 48 V

VI

= 36 V

2.5

0.05

0.19

0.33

0.50

0.66

0.83

1.00

NORMALIZED OUTPUT CURRENT (IO/IO, max)

0.0

0.5

1.0

1.5

2.0

(A)

3.0

8-1814(C)

OUTPUT CURRENT, I

O

Figure 54. LW015B, C Typical Power Dissipation vs.

8-1385(C)

Normalized Output Current at T^C= 25 °C

Note: The power dissipation of this unit is shown at T^C= T^C, ^max

because the efficiency of this power module drops at high

temperatures.

3.5

3.0

2.5

Figure 57. LW015F Power Dissipation at Maximum

Case Temperature

VI

= 60 V

VI = 75 V

2.0

1.5

1.0

0.5

0.0

V

I

= 36 V

VI = 48 V

0.0

0.5

1.0

1.5

2.0

2.5

3.0

(A)

O

OUTPUT CURRENT, I

8-1815(C)

Figure 55. LW010D, LW015D Typical Power

Dissipation vs. Output Current at

T^C= 25 °C

20

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Module Derating

Thermal Considerations (continued)

The derating curves in Figures 43 through 45 were

determined by measurements obtained in an experi-

mental apparatus shown in Figure 61. Note that the

module and the printed-wiring board (PWB) that it is

mounted on are both vertically oriented. The passage

has a rectangular cross section.

3.5

3.0

2.5

VI = 75 V

2.0

VI = 60 V

1.5

1.0

FACING PWB

PWB

VI = 48 V

0.5

VI = 36 V

0.0

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

MODULE

NORMALIZEDOUTPUT CURRENT (IO/IO, max)

8-1380(C)

Figure 58. LW010A, B, C Typical Power Dissipation

vs. Normalized Output Current at

T^C= 25 °C

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED

3.5

3.0

76 (3.0)

AIRFLOW

BELOW THE

MODULE

2.5

VI = 60 V

VI = 75 V

2.0

1.5

13 (0.5)

1.0

VI = 36 V

8-1126(C).d

VI = 48 V

Note: Dimensions are in millimeters and (inches).

0.5

0.0

Figure 61. Experimental Test Setup

0.5

1.0

1.5

2.0

2.5

(A)

OUTPUT CURRENT, IO

8-1816(C)

Layout Considerations

Figure 59. LW010F Typical Power Dissipation vs.

Output Current at T^C= 25 °C

Copper paths must not be routed beneath the power

module standoffs.

3.0

2.5

VI = 75 V

VI = 60 V

2.0

1.5

VI = 36 V

VI = 48 V

1.0

0.5

0.0

0.2

0.4

0.6

0.8

1.0

NORMALIZED OUTPUT CURRENT,

IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

8-1817(C)

Figure 60. LW010AJ, BK, CL Typical Power

Dissipation vs. Normalized Output

Current at T^C= 25 °C

Tyco Electronics Corp.

21

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Outline Diagram

Dimensions are in millimeters and (inches).

Tolerance: x.x ± 0.5 mm (0.020 in.); x.xx ± 0.38 mm (0.015 in.).

If slightly lower height is needed, the four standoffs can be dropped through holes on the user’s PWB. By dropping

the standoffs through the PWB, the module height will be decreased to 9.5 mm (0.375 in.) typical height.

Top View

50.8 (2.00)

-

25.4

(1.00)

LC015A

IN

+

OUT

+

DC-DC Power Module

IN:DC 18-36V, 1.1A

OUT:DC 5V, 3A

MADE IN USA

Side View

0.51

(0.020)

10.16 (0.400)

MAX

5.84 (0.230)*

MIN

STANDOFF

DIAMETER 0.63 (0.025)

TYP, 4 PLACES

0.63 (0.025) x 0.63 (0.025)

SQUARE PIN,

ALL PLACES

Bottom View

7.62 (0.300)

0.32 (0.0125)

TYP

4

5

6

5.08

(0.200)

12.7

(0.500)

9.91

(0.39)

24.77

(0.975)

2

1

2.54

(0.100)

3

7.62

(0.300)

15.2

(0.60)

10.16

(0.400)

20.32 (0.800)

27.9 (1.10)

8-1329(C).b

* An optional short pin dimension is 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.).

Function

1

2

VI(–)

4

5

V^O(+) or V^O1(+)

VI(+)

COMMON (dual outputs) or

TRIM (optional on single outputs)

Pin is not present on single outputs unless

option is specified.

Pin is always present on dual outputs.

3

ON/OFF or SYNC (optional)

Pin is not present unless one of these

options is specified.

6

V^O(–) or V^O2(–)

22

Tyco Electronics Corp.

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Recommended Hole Pattern

Component-side footprint.

Dimensions are in millimeters and (inches).

CASE OUTLINE

STANDOFF

27.94

(1.10)

7.62

(0.300)

10.16

9.91

5.08

(0.200)

(0.400)

25.4

(1.00)

(0.39)

24.77

(0.975)

7.62

20.32

(0.300)

(0.800)

2.54

(0.100)

15.2

(0.60)

20.32 (0.800)

50.8 (2.00)

8-1329(C).b

Ordering Information

Table 6. Device Codes

Input Voltage

18 V—36 V

36 V—75 V

18 V—36 V

36 V—75 V

36 V— 75 V

36 V—75 V

Tyco Electronics Corp.

Output Voltage

5 V

Output Power

15 W

6 W

Device Code

LC015A

LC015B

LC015C

LC015D

LC015F

Comcode

107809550

107983140

TBD

12 V

15 V

2 V

TBD

3.3 V

5 V

10 W

4 W

107809543

107747925

107747933

107747941

107747958

107747966

107987083

107809592

TBD

LC010A

LC010B

LC010C

LC010D

LC010F

12 V

15 V

2 V

3.3 V

±5 V

±12 V

±15 V

5 V

8 W

15 W

6 W

LC010AJ

LC010BK

LC010CL

LW015A

LW015B

LW015C

LW015D

LW015F

LW010A

LW010B

LW010C

LW010D

LW010F

LW010AJ

LW010BK

LW010CL

107809527

107935413

107935421

107809501

107809535

107747974

107747982

107747990

107748006

107748014

107935405

107809568

TBD

12 V

15 V

2 V

3.3 V

5 V

10 W

4 W

12 V

15 V

2 V

3.3 V

±5 V

±12 V

±15 V

8 W

10 W

23

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

Data Sheet

August 1998

Ordering Information (continued)

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

numerically in descending order. Please contact your Lucent Technologies Account Manager or Application Engi-

neer for pricing and availability of options.

Table 7. Option Codes

Option

Device Code Suffix

Output voltage adjustment

9

8

Short pin: 2.8 mm ± 0.25 mm

(0.110 in. ± 0.010 in.)

Short pin: 3.7 mm ± 0.25 mm

(0.145 in. ± 0.010 in.)

6

Positive logic remote on/off

4

3

Synchronization

(cannot be ordered on units

with remote on/off)

Negative logic remote on/off

1

Tyco Electronics Power Systems, Inc.

3000 Skyline Drive, Mesquite, TX 75149, USA

+1-800-526-7819 FAX: +1-888-315-5182

(Outside U.S.A.: +1-972-284-2626, FAX: +1-972-284-2900)

http://power.tycoelectronics.com

Tyco Electronics Corporation 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.

August 1998

DS98-040EPS (Replaces DS97-027EPS)

Printed on

Recycled Paper


型号：	LW010
厂家：	TE CONNECTIVITY
描述：	Power Modules: 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W 电源模块： 18 Vdc至36 Vdc或36 Vdc至75 VDC输入， 10瓦和15瓦电源电路
文件：	总24页 (文件大小：519K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LW010 [TE]

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