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参数资料
| 型号： | LW020A81 |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 20 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 15/16页 |
| 文件大小： | 341K |
| 代理商： | LW020A81 |
8
Lucent Technologies Inc.
Data Sheet
January 2000
36 Vdc to 75 Vdc Inputs; 20 W
LW020 Single-Output-Series Power Modules:
Characteristics Curves (continued)
8-1261(C).b
Figure 9. LW020A, B, C, F, and G Typical Output
Voltage for a Step Load Change from 50%
to 25%
8-1263(C).b
Figure 10. LW020A, B, C, F, and G Typical Output
Voltage Start-Up when Signal Applied to
Remote On/Off
Test Congurations
8-203(C)
Note: Input reected-ripple current is measured with a simulated
source impedance of 12
H. Capacitor Cs offsets possible
battery impedance. Current is measured at the input of the
module.
Figure 11. Input Reected-Ripple Test Setup
8-513(C)
Note: Use a 0.1
F ceramic capacitor. 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 12. Peak-to-Peak Output Noise
Measurement Test Setup
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.
Figure 13. Output Voltage and Efciency
Measurement Test Setup
TIME, t (100 s/div)
NORMALIZED
OUTPUT
VOLTAGE,
V
O
(V)
NORMALIZED
OUTPUT
CURRENT,
I
O
(A)
101%
VO, nom
100%
VO, nom
50%
IO, max
25%
IO, max
TIME, t (1 ms/div)
NORMALIZED
OUTPUT
VOLTAGE,
V
O
(1
V/div)
0
100%
VO, nom
50%
VO, nom
5V
0
REMOTE
ON/OFF,
V
on/off
(V)
(2
V/div)
TO OSCILLOSCOPE
12 H
CS 220 F
IMPEDANCE < 0.1
@ 20
°C, 100 kHz
VI(+)
VI(–)
BATTERY
33 F
CURRENT
PROBE
LTEST
VO(+)
VO(–)
RESISTIVE
LOAD
SCOPE
0.1 F
COPPER STRIP
VI(+)
VI(–)
VO(+)
VO(–)
II
IO
SUPPLY
CONTACT RESISTANCE
CONTACT AND
DISTRIBUTION LOSSES
LOAD
η
VO(+)
VO(–)
–
[]IO
VI(+)
VI(–)
–
[]II
------------------------------------------------
100
×
=
%
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相关代理商/技术参数 |
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| LW020A87 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC-to-DC Voltage Converter |
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| LW020AF | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc inputs 20W |
| LW020B | 制造商:Alcatel-Lucent 功能描述: 制造商:Lucent 功能描述: |
| LW020B1 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC-to-DC Voltage Converter |
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