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參數(shù)資料
| 型號： | LUC025F |
| 廠商： | LINEAGE POWER LLC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 16.5 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 12/15頁 |
| 文件大小： | 397K |
| 代理商： | LUC025F |
6
Lineage Power
Data Sheet
April 2008
18 Vdc to 36 Vdc In; 3.3 Vdc Out; 16.5 W
LUC025F Power Module: dc-dc Converter:
Characteristics Curves (continued)
8-2809(C)
Figure 5. LUC025F Typical Output Voltage for a
Step Load Change from 50% to 75%
of IO, max
8-2810(C)
Figure 6. LUC025F Typical Output Voltage Start-Up
when Signal Is Applied to Remote On/Off
Test Configurations
8-203(C).p
Note: Input reflected-ripple current is measured with a simulated
source inductance (LTEST) of 12 H. Capacitor Cs offsets
possible battery impedance. Current is measured at the input
of the module.
Figure 7. Input Reflected-Ripple Test Setup
8-513(C).d
Note: Use one external 1 F ceramic capacitor (nearest to the mod-
ule) and one 10 F aluminum or tantalum capacitor (nearest
to the load). 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 8. 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 9. Output Voltage and Efficiency
Measurement Test Setup
TIME, t (200
μs/div)
O
U
T
P
UT
CUR
RE
NT,
Io
(A
)
O
U
T
PUT
V
O
L
T
A
G
E
,V
o
(
V
)
(1
.2
5A
/d
iv
)
(5
0m
V
/d
iv)
3.75A
2.5A
R
E
M
O
TE
O
N
/O
FF
OU
TP
U
T
V
O
LT
A
G
E
,
V
o
V
ON
/O
FF
(10V
/di
v)
(1V
/di
v)
TIME, t (500
μs/div)
V(+)
V(–)
CURRENT
PROBE
TO
OSCILLOSCOPE
LTEST
12
μH
BATTERY
CS 220
μF
ESR < 0.1
Ω
@ 20 °C
33
μF
ESR < 0.7
Ω
@ 20 C
100 kHz
100kHz
V O(+)
V O(–)
1.0 F
RESISTIVE
LOAD
SCOPE
COPPER STRIP
10 F
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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