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LW020A

Single-Output-Series Power Modules: 36 Vdc to 75 Vdc Inputs; 20 W

General Semiconductor 

Data Sheet

April 2008

Electrical Specifications (continued)

LW020 Single-Output-Series Power Modules:

36 Vdc to 75 Vdc Inputs; 20 W

Table 2. Output Specifications

Parameter

Output Voltage Set Point

(VI = 48 V; IO = IO, max; TC = 25 °C)

Output Voltage

(Over all line, load, and temperature

conditions until end of life; see Figure 13.)

Output Regulation:

Line (VI = 36 V to 75 V)

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

Temperature (TC = –40 °C to +100 °C)

Output Ripple and Noise Voltage

(See Figure 12.):

RMS

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

Output Current

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

output ripple specifications.)

Output Current-limit Inception

(VO = 90% x VO, set; see Figure 2.)

Output Short-circuit Current

(VO = 250 mV)

Efficiency

(VI, nom; IO = IO, max; TC = 25 °C; see Figures

3—7 and 13.)

Switching Frequency

Dynamic Response

(ýIO/ýt = 1 A/10 µs, VI = VI, nom, TA = 25 °C):

Load Change from IO = 50% to 75% of

IO, max:

Peak Deviation

Settling Time (VO < 10% peak

deviation)

Load Change from IO = 50% to 25% of

IO, max:

Peak Deviation

Settling Time (VO < 10% peak

deviation)

Lineage Power

Device

LW020G

LW020F

LW020A

LW020B

LW020C

LW020G

LW020F

LW020A

LW020B

LW020C

All

All

All

LW020A, F,

G

LW020B, C

LW020A, F,

G

LW020B, C

LW020A, F,

G

LW020B

LW020C

All

LW020C

LW020B

LW020A, F,

G

LW020G

LW020F

LW020A

LW020B

LW020C

All

All

All

All

All

Symbol

VO, set

VO, set

VO, set

VO, set

VO, set

VO

VO

VO

VO

VO

Min

2.46

3.25

4.92

11.81

14.76

2.4

3.20

4.85

11.64

14.55

—

—

—

—

—

—

—

—

—

—

—

—

—

—

IO

0.4

IO

0.17

IO

0.13

IO

103

IO

—

IO

—

IO

—

η

71

η

74

η

77

η

82

η

82

—

—

—

—

—

—

—

—

—

—

Typ

2.5

3.3

5.0

12.0

15.0

—

—

—

—

—

0.01

0.05

0.5

—

—

20

50

—

—

—

—

150

150

150

75

77

81

85

85

256

2

1.0

2

1.0

Max

2.54

3.35

5.08

12.19

15.24

2.6

3.40

5.15

12.36

15.45

0.1

0.2

1.0

Unit

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

%VO

%VO

%VO

20 mVrms

50 mVrms

100 mVp-p

150 mVp-p

4.0

A

1.67

A

1.33

A

150 %IO, max

250 %IO, max

220 %IO, max

200 %IO, max

—

%

—

%

—

%

—

%

—

%

—

kHz

—

%VO, set

—

ms

—

%VO, set

—

ms

3

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