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PDF ( 数据手册 , 数据表 ) LC010F

零件编号 LC010F
描述 Power Modules
制造商 Tyco Electronics
LOGO Tyco Electronics LOGO 


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LC010F 数据手册, 描述, 功能
Data Sheet
August 1998
www.DataSheet4U.com
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
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.
Options
s 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)
s Wide input voltage range: 18 Vdc to 36 Vdc or
36 Vdc to 75 Vdc
s Output current limiting, unlimited duration
s Output overvoltage clamp
s Undervoltage lockout
s Input-to-output isolation: 1500 V
s Operating case temperature range: –40 °C to
+105 °C
s UL* 1950 Recognized, CSA22.2 No. 950-95
Certified, IEC950, and VDE0805 Licensed
s CE mark meets 73/23/EEC and 93/68/EEC
directives
s Within FCC and VDE Class A radiated limits
s Remote on-off
s Choice of on/off configuration
s Short pin: 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.)
s Synchronization (cannot be ordered on units with
remote on/off)
s Output voltage adjust: 90% to 110% of VO, nom
(single outputs only)
s Tight output voltage tolerance
Applications
s Telecommunications
s Distributed power architectures
s Private branch exchange (PBX)
s Voice and data multiplexing
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.)







LC010F pdf, 数据表
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
Characteristics Curves (continued)
5.15
Data Sheet
August 1998
www.DataSheet4U.com
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0 10 20 30 40 50 60 70 80
INPUT VOLTAGE, V I (V)
8-1787(C)
Figure 3. LW010 Input Current vs. Input Voltage at
IO = IO, max and TC = 25 °C
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
10 20
30 40
50 60
70 80
INPUT VOLTAGE, V I (V)
8-1788(C)
Figure 4. LW015 Input Current vs. Input Voltage at
IO = IO, max and TC = 25 °C
1.003
1.002
1.001
1.000
VI = LOW LINE
0.999
0.998
VI = NOM LINE
VI = HIGH LINE
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 (IO/IO, max)
8-1789(C)
Figure 5. Lx010x/Lx015x Single-Output Load
Regulation, Normalized Output Voltage
vs. Normalized Output Current at
TC = 25 °C
5.10
5.05
VI = LOW LINE
VI = NOM LINE
VI = HIGH LINE
5.00
4.95
4.90
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT CURRENT 1, IO1 (A)
Note: Output2 has characteristics similar to output1 when
IO1 = 0.5 A and IO2 varies.
8-1790(C)
Figure 6. Lx010AJ Typical Load Regulation of
Output1 with Fixed IO2 = 0.5 A at
TC = 25 °C
5.25
5.20
5.15
VI = LOW LINE
5.10
5.05
VI = NOM LINE
VI = HIGH LINE
5.00
4.95
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT CURRENT 2, IO2 (A)
Note: Output2 has characteristics similar to output1 when
IO2 = 0.1 A and IO1 varies.
8-1791(C)
Figure 7. Lx010AJ Typical Cross Regulation,
VO1 vs. IO2 with Fixed IO1 = 0.1 A at
TC = 25 °C
8 Tyco Electronics Corp.







LC010F equivalent, schematic
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
www.DataSheet4U.com
Feature Descriptions (continued)
Output Voltage Adjustment (Optional on
Single-Output Units)
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 VO(+)
or VO() pins. With an external resistor between the
TRIM and VO(+) pins (Radj-down), the output voltage set
point (VO, adj) decreases (see Figure 39). The following
equation determines the required external resistor
value to obtain an output voltage change from VO, nom to
VO, adj:
=R adj-down
-----(--V----O---,-a---d--j-------L---)--G-------
( VO, nom VO, adj )
H
where Radj-down is the resistance value connected
between TRIM and VO(+), and G, H, and L are defined
in the following table.
GH K L
Lx010, 5A 5110 2050 2.5
2.5
Lx010, 5B 10,000 5110 9.5
2.5
Lx010, 5C 10,000 5110 NA
2.5
Lx010, 5D 5110 2050 0.76 1.23
Lx010, 5F 5110 2050 0.75
2.5
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 VO(+) and VO() terminals.
VI(+)
VO(+)
TRIM
VI(-)
VO(-)
Radj-up
RLOAD
VI (+)
VO (+)
TRIM
Radj-down
RLOAD
VI ()
VO(-)
8-715(C).e
Figure 39. Circuit Configuration to Decrease
Output Voltage
8-715(C).d
Figure 40. Circuit Configuration to Increase Output
Voltage
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).
With an external resistor connected between the TRIM
and VO() pins (Radj-up), the output voltage set point
(VO, adj) increases (see Figure 40). The following equa-
tion determines the required external resistor value to
obtain an output voltage from VO, nom to VO, adj:
R adj-up
=
------------------G----L------------------
[(VO, adj L) K]
H
Synchronization (Optional)
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.
where Radj-up is the resistance value connected
between TRIM and VO (), and the values of G, H, K,
and L are shown in the following table:
16 Tyco Electronics Corp.










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