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PDF CW025 Data sheet ( Hoja de datos )
| Número de pieza | CW025 | |
| Descripción | Triple Output Series Power Modules | |
| Fabricantes | Lineage Power Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CW025 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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Data Sheet
April 2008
www.DataSheet4U.com
CW025 Triple-Output-Series Power Modules:
36 Vdc to 75 Vdc Input; 25 W
The CW025 Triple-Output-Series Power Modules use
advanced, surface-mount technology and deliver high-qual-
ity, compact, dc-dc conversion at an economical price.
Features
n Small size: 71.1 mm x 61.0 mm x 12.7 mm
(2.80 in. x 2.40 in. x 0.50 in.)
n Low output noise
n Industry-standard pinout
n Metal case
n 2:1 input voltage range
n Remote on/off (positive logic)
n UL* Recognized, CSA† Certified, and VDE
Licensed
n Within FCC and CISPR Class A radiated limits
n Higher accuracy output voltage clamp set point
n CE mark meets 73/23/EEC and 93/68/EEC
directives‡
Applications
n Distributed power architectures
n Telecommunications
Options
n Isolated case ground pin
n Short pins: 2.79 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
n Negative logic remote on/off
n Heat sink available for extended operation
Description
The CW025 Triple-Output-Series Power Modules are
dc-dc converters that operate over an input voltage
range of 36 Vdc to 75 Vdc and provide three outputs.
These modules offer extremely low noise levels with
industry-standard pinouts in a small footprint. Each
highly reliable and efficient unit features remote
on/off and current limit.
The maximum total output power of the CW025
Triple-Output-Series Power Modules is limited to
25 W. The main output (VO1) is designed to deliver
the entire 25 W. The auxiliary outputs (VO2 and VO3)
can provide a total of 22.5 W, as long as the total out-
put power does not exceed 25 W.
Efficiency greater than 80%, a wide operating
temperature range, and a metal case are additional
features of these modules.
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Associa-
tion.
‡ This product is intended for integration into end-use equipment.
All the required procedures for CE marking of end-use equip-
ment should be followed. (The CE mark is placed on selected
products.)
1 page  
Data Sheet
April 2008
Feature Specifications
CW025 Triple-Output-Series Power Modules:
36 Vdc to 75 Vdc Input; 25 W
www.DataSheet4U.com
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions and Design Considerations for further information.
Parameter
Remote On/Off
(VI = 0 V to 75 V; open collector or equivalent
compatible; signal referenced to VI(–)
terminal. See Figure 21 and Feature
Descriptions.):
CW025XXX-M (positive logic):
Logic Low—Module Off
Logic High—Module On
CW025XXX1-M (negative logic):
Logic Low—Module On
Logic High—Module Off
Module Specifications:
On/Off Current—Logic Low
On/Off Voltage:
Logic Low
Logic High (Ion/off = 0)
Open Collector Switch Specifications:
Leakage Current During Logic High
(Von/off = 10 V)
Output Low Voltage During Logic Low
(Ion/off = 1 mA)
Turn-on Time
(IO = 80% of IO, max; VO within ±1% of
steady state)
Output Voltage Overshoot
Output Overvoltage Clamp
Output Voltage Set-point Adjustment Range
Device
Symbol
All Ion/off
All Von/off
All Von/off
All Ion/off
All Von/off
All —
All
CW025ABK-M
CW025ACL-M
All
—
VO1
VO2
VO3
VO1
VO2
VO3
—
Min
—
0
—
—
—
—
—
—
—
—
—
—
—
90
Typ Max Unit
— 1.0
— 1.2
— 10
— 50
— 1.2
5—
mA
V
V
µA
V
ms
05
6 6.8
15 17
–15 –17
6 6.8
19 21
–19 –21
— 110
%
V
V
V
V
V
V
%VO, nom
Lineage Power
5
5 Page 
Data Sheet
April 2008
Test Configurations (continued)
CW025 Triple-Output-Series Power Modules:
36 Vdc to 75 Vdc Input; 25 W
www.DataSheet4U.com
Design Considerations
VO2 (+)
VO2, VO3,
COM
VO3 (–)
COPPER STRIP
0.47 µF
0.47 µF
SCOPE R LOAD3
SCOPE R LOAD2
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source im-
pedances can affect the stability of the power module. A
33 µF electrolytic capacitor (ESR < 0.7 Ω at 100 kHz)
mounted close to the power module helps to ensure the
stability of the unit.
Safety Considerations
VO1 (+)
VO1 (–)
0.1 µF
SCOPE R LOAD1
8-810(C).c
Note: Use the specified ceramic capacitor. Scope measurement
should be made by using a BNC socket. Position the load
between 50 mm (2 in.) and 75 mm (3 in.) from the module.
Figure 19. Output Noise Measurement Test Setup
SUPPLY
II
CONTACT
RESISTANCE
SENSE
SENSE VO2, VO3 SENSE
VO3(–) COM VO2(+)
VI(+)
VO2(+)
VO2, VO3
COM
VO3(+)
CONTACT AND
DISTRIBUTION LOSSES
I O 2 LOAD2
I O 3 LOAD3
VI(–)
VO1(+)
VO1(–)
IO1
LOAD1
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 22.2-950, and EN60950.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), one of
the following must be true:
s All inputs are SELV and floating, with the output also
floating.
s All inputs are SELV and grounded, with the output
also grounded.
s Any non-SELV input must be provided with reinforced
insulation from any other hazardous voltages, includ-
ing the ac mains, and must have a SELV reliability
test performed on it in combination with the convert-
ers. Inputs must meet SELV requirements.
If the input meets extra-low voltage (ELV) requirements,
then the converter’s output is considered ELV.
The input to these units is to be provided with a maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
SENSE
VO1(+)
SENSE
VO1(–)
8-749(C).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.
3
∑ [VOj(+) – VCOM]IOj
η
=
j=1
-------[--V-----I-(---+---)----+-----(--–----V----I--(--–----)--)---]--I--I------
×
100
Figure 20. Triple Output Voltage and Efficiency
Measurement Test Setup
Lineage Power
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet CW025.PDF ] | |
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