LW025F871 Lineage Power, LW025F871 Datasheet

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LW025F871

Manufacturer Part Number
LW025F871
Description
CONVERTER DC/DC 3.3V 16.5W OUT
Manufacturer
Lineage Power
Series
LW025r
Type
Isolated with Remote On/Offr
Datasheet

Specifications of LW025F871

Output
3.3V
Number Of Outputs
1
Power (watts)
25W
Mounting Type
Through Hole
Voltage - Input
36 ~ 75V
Package / Case
8-DIP Module
1st Output
3.3 VDC @ 5A
Size / Dimension
2.00" L x 2.00" W x 0.39" H (50.8mm x 50.8mm x 9.9mm)
Power (watts) - Rated
16.5W
Operating Temperature
-40°C ~ 110°C
Efficiency
77%
Approvals
CE, CSA, UL, VDE
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
3rd Output
-
2nd Output
-
4th Output
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LW025F871
Manufacturer:
TYCO
Quantity:
28
Part Number:
LW025F871
Manufacturer:
DELTA
Quantity:
4 800
Advance Data Sheet
April 2008
The LW025 Single-Output-Series Power Modules use
advanced, surface-mount technology and deliver high-qual-
ity, compact, dc-dc conversion at an economical price.
Options
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n
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Description
The LW025 Single-Output-Series Power Modules are low-profile dc-dc converters that operate over an input
voltage range of 36 Vdc to 75 Vdc and provide precisely regulated outputs. The output is isolated from the
input, allowing versatile polarity configurations and grounding connections. The module has a maximum power
rating of 25 W at a typical full-load efficiency of 79%.
The power modules feature remote on/off and output voltage adjustments of 90% to 110% of the nominal out-
put voltage. Built-in filtering for both input and output minimizes the need for external filtering.
* 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.)
Choice of on/off configuration
Case ground pin
Synchronization
Short pins: 2.79 mm ± 0.25 mm
Short pins: 3.68 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
(0.145 in. ± 0.010 in.)
LW025 Single-Output-Series Power Modules:
Features
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n
n
n
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n
n
n
n
n
n
Applications
n
n
36 Vdc to 75 Vdc Inputs; 25 W
Low profile: 9.91 mm (0.390 in.) with 0.38 mm
(0.015 in.) standoffs, 9.53 mm (0.375 in.) with
standoffs recessed
Wide input voltage range: 36 Vdc to 75 Vdc
Input-to-output isolation
Operating case temperature range: –40 °C to
+110 °C
Metal case
Overcurrent protection
Remote on/off
Output voltage adjust: 90% to 110% of V
Output overvoltage protection
UL* 1950 Recognized, CSA
Certified, VDE 0805 (EN60950, IEC950) Licensed
CE mark meets 73/23/EEC and 93/68/EEC
directives
Within FCC and EN55022 (CISPR 22) Class A
radiated limits
Distributed power architectures
Telecommunications
C22.2 No. 950-95
O, nom

Related parts for LW025F871

LW025F871 Summary of contents

Page 1

Advance Data Sheet April 2008 LW025 Single-Output-Series Power Modules: The LW025 Single-Output-Series Power Modules use advanced, surface-mount technology and deliver high-qual- ity, compact, dc-dc conversion at an economical price. Options Choice of on/off configuration n Case ground pin n Synchronization ...

Page 2

... Refer to the fuse manufacturer’s data for further information. 2 Symbol Min Max 100 I, trans T –40 110 –40 120 stg — — 1500 Symbol Min Typ — — I, max — — I — — — 60 April 2008 Unit Vdc V °C °C Vdc Max Unit 75 Vdc 1 0 — mAp-p — dB Lineage Power ...

Page 3

... I O Peak Deviation Settling Time (V < 10% peak deviation) O Table 3. Isolation Specifications Parameter Isolation Capacitance Isolation Resistance General Specifications Parameter Calculated MTBF ( max Weight Lineage Power (continued) Device Symbol LW025F V LW025A V LW025F LW025A All All All All All All All ...

Page 4

... V — — 10 on/off I — — 50 on/off V — — 1.2 on/off T — delay T — delay T — 1.5 3.0 rise — — — 5 — 90 — 110 V 3.9 — 5.0 O, clamp V 5.6 — 7.0 O, clamp Lineage Power Unit µ nom V V ...

Page 5

... INPUT VOLTAGE, V Figure 1. LW025F Typical Input Characteristics 1.2 1.0 0.8 0.6 0.4 0.2 0 INPUT VOLTAGE, V Figure 2. LW025A Typical Input Characteristics Lineage Power 3.5 3.0 2 1.0 0.5 0 Figure 3. LW025F Typical Output Characteristics (V) I 8-2233(C) ...

Page 6

... Figure 7. LW025A, F Typical Output Voltage for a 3.5 4.0 4.5 5.0 (A) O 3.75 A 8-1984(C) 2.5 A Figure 8. LW025A, F Typical Output Voltage for a April 2008 TIME, t (100 µs/div) Step Load Change from 50% to 25% TIME, t (100 µs/div) Step Load Change from 50% to 75% Lineage Power 8-1261(C).c 8-1262(C) ...

Page 7

... April 2008 Characteristics Curves (continued TIME ms/div) Figure 9. LW025A, F Typical Output Voltage Start- Up when Signal Is Applied to Remote On/Off Lineage Power 36 Vdc to 75 Vdc Inputs Test Configurations TO OSCILLOSCOPE C 220 µF S IMPEDANCE < 0.1 Ω BATTERY @ 20 ˚C, 100 kHz Note: Input reflected-ripple current is measured with a simulated source impedance of 12 µ ...

Page 8

... The module has internal capacitance to reduce noise at the ON/OFF pin. Additional capacitance is not gen- erally needed and may degrade the start-up character- istics of the module. April 2008 (–) terminal (V ). The I on/off = –0 1.2 V. The max- on/off generated by on/off = µA. on/off Lineage Power ...

Page 9

... The control loop of the protection circuit has a higher voltage set point than the primary loop (see Feature Specifications table fault condition, the overvoltage clamp ensures that the output voltage does not exceed V O, clamp, max overvoltage. Lineage Power V (+) I V ...

Page 10

... What is the minimum airflow necessary for a LW025A operating at V maximum ambient temperature of 85 °C? Solution 19.6 (0.77 Given Determine P - Determine airflow (Figure 16 1.0 ms OUT (200 ft./min.) + 8-1265(C).c April 2008 ) for natural convection A –1 (600 ft./min.). = output current of 3.5 A, and 3 ° (Figure 18 4 –1 Lineage Power –1 ...

Page 11

... MAX AMBIENT TEMPERATURE, T Note: Conversion factor for linear feet per minute to meters per –1 second: 200 ft./min Figure 16. LW025A Forced Convection Power Derating; Either Orientation Lineage Power (continued 0.4 Figure 17. LW025F Power Dissipation vs. Output 90 100 110 (˚C) A 8-2477(C) ...

Page 12

... AND AMBIENT TEMPERATURE MEASURED AIRFLOW BELOW THE MODULE Note: Dimensions are in millimeters and (inches). Figure 19. Experimental Test Setup 12 12 Layout Considerations (continued) Copper paths must not be routed beneath the power module standoffs. PWB MODULE 76 (3.0) 13 (0.5) 8-1126(C).d April 2008 Lineage Power ...

Page 13

... Dimensions are in millimeters and (inches). Tolerances: x.x ± 0.5 mm (0.02 in.), x.xx ± 0.25 mm (0.010 in.). Pin-to-pin tolerances are not cumulative. Note: For standard modules, V (+) is internally connected to the case. I Top View Side View Bottom View Lineage Power 36 Vdc to 75 Vdc Inputs Pin Function 1 Remote On/Off 2 ...

Page 14

... Optional features may be ordered using the device code suffixes shown below. To order more than one option, list suffixes in numerically descending order. Please contact your Lineage Power Account Manager or Field Applica- tion Engineer for pricing and availability. Table 5. Option Codes Option Short pins: 2.79 mm ± 0.25 mm (0.110 in. ± ...

Page 15

... April 2008 Notes Lineage Power 36 Vdc to 75 Vdc Inputs ...

Page 16

... Lineage Power reserves the right to make changes to the produc t(s) or information contained herein without notice. No liability is ass umed as a res ult of their use or applic ation. No rights under any patent acc om pany the sale of any oduct information. ...

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