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LF512RW Scheda tecnica(PDF) 2 Page - MicroPower Direct, LLC

Il numero della parte LF512RW
Spiegazioni elettronici  Wide Input, 5W SMT Single & Dual Output DC/DC Converters
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Produttore elettronici  MPD [MicroPower Direct, LLC]
Homepage  http://www.micropowerdirect.com
Logo MPD - MicroPower Direct, LLC

LF512RW Scheda tecnica(HTML) 2 Page - MicroPower Direct, LLC

  LF512RW Datasheet HTML 1Page - MicroPower Direct, LLC LF512RW Datasheet HTML 2Page - MicroPower Direct, LLC  
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Model Selection Guide
Mechanical Dimensions
Notes:
All dimensions are typical in inches (mm)
Tolerance x.xx =
±0.01 (±0.25)
Pin 1 is marked by a “dot” or indentation
on the unit
Notes:
1. When measuring output ripple, it is recommended that an external 0.47
µF ceramic capacitor
be placed from the +Vout pin to the -Vout pin for single output units and from each output
to common for dual output units. For noise sensitive applications, the use of 3.3
µF capacitors
will reduce the output ripple.
2. Transient recovery is measured to within a 1% error band for a load step change of 75% to
100%.
3. No-load operation will not damage these units, however, they may not meet specifications.
4. Dual output units may provide a 10V, 24V or 30V output. To do this, connect the load across
the positive (+Vout) and negative (-Vout) outputs and float the output common.
5. The converter should be connected to a low ac-impedance source. An input source with a
highly inductive impedance may affect the stability of the converter. In applications where
the converter output loading is high and input power is supplied over long lines, it may be
necessary to use a capacitor on the input to insure start-up. In this case, it is recommended
that a low ESR (ESR <1.0Ω at 100 kHz) capacitor be mounted close to the converter. For 12V
input units a 4.7
µF is recommended, and for 24V & 48V units a 2.2 µF.
6. It is recommended that a fuse be used on the input of a power supply for protection. See the
table above for the correct rating.
Remote ON/OFF Notes:
1. Maximum sink current at the
on/off pin (pin 1) during a
logic low is 300
µA.
2. Maximum allowable leakage
current of a switch connect-
ed to the on/off terminal
(Pin 1) at logic high (2.5V to
100V) is 200
µA.
Parameter
Condition
Units
Supply On
2.5 to 5.5 or Open Circuit
VDC
Supply Off
-0.7 to 0.8
VDC
Standby Input Current
10
mA
Control Common
Referenced to Negative Input (-Vin)
Remote ON/OFF
Derating Curve
Single
Output (Max)
680
µF
Dual
Output (Max)
100
µF
Capacitive
Load
Board Layout
Pin Connections
Pin
Single
Dual
1
On/Off
On/Off
2
-Vin
-Vin
3
-Vin
-Vin
9
NC
Common
10
NC
NC
11
NC
-Vout
12
NC
NC
13
NC
NC
14
+Vout
+Vout
15
NC
NC
16
-Vout
Common
22
+Vin
+Vin
23
+Vin
+Vin
24
NC
NC
NC: No Connection
Model
Number
Input
Output
Reflected
Ripple Cur.
(mA)
Efficiency
(%, Typ)
Fuse Rating
Slow-Blow
(mA)
Voltage (VDC)
Current (mA)
Voltage
(VDC)
Current
(mA, Max)
Current
(mA, Min)
Nominal
Range
Full-Load
No-Load
LF501RW
12
9.0 - 18.0
434
20
3.3
1,200
120.0
25
76
1,500
LF502RW
12
9.0 - 18.0
521
20
5.0
1,000
100.0
25
80
1,500
LF503RW
12
9.0 - 18.0
502
20
12.0
417
41.7
25
83
1,500
LF504RW
12
9.0 - 18.0
502
20
15.0
333
33.3
25
83
1,500
LF505RW
12
9.0 - 18.0
521
20
±5.0
±500
±50.0
25
80
1,500
LF506RW
12
9.0 - 18.0
501
20
±12.0
±208
±20.8
25
83
1,500
LF507RW
12
9.0 - 18.0
503
20
±15.0
±167
±16.7
25
83
1,500
LF511RW
24
18.0 - 36.0
212
5
3.3
1,200
120.0
15
78
700
LF512RW
24
18.0 - 36.0
254
5
5.0
1,000
100.0
15
82
700
LF513RW
24
18.0 - 36.0
245
5
12.0
417
41.7
15
85
700
LF514RW
24
18.0 - 36.0
245
5
15.0
333
33.3
15
85
700
LF515RW
24
18.0 - 36.0
254
5
±5.0
±500
±50.0
15
82
700
LF516RW
24
18.0 - 36.0
245
5
±12.0
±208
±20.8
15
85
700
LF517RW
24
18.0 - 36.0
246
5
±15.0
±167
±16.7
15
85
700
LF521RW
48
36.0 - 75.0
106
3
3.3
1,200
120.0
10
78
350
LF522RW
48
36.0 - 75.0
127
3
5.0
1,000
100.0
10
82
350
LF523RW
48
36.0 - 75.0
123
3
12.0
417
41.7
10
85
350
LF524RW
48
36.0 - 75.0
122
3
15.0
333
33.3
10
85
350
LF525RW
48
36.0 - 75.0
127
3
±5.0
±500
±50.0
10
82
350
LF526RW
48
36.0 - 75.0
122
3
±12.0
±208
±20.8
10
85
350
LF527RW
48
36.0 - 75.0
123
3
±15.0
±167
±16.7
10
85
350
Notes:
All dimens
Tolerance x
Pin 1 is ma
on the uni
MicroPower Direct
www.micropowerdirect.com
292 Page Street Ste D Stoughton, MA 02072
TEL: (781) 344-8226
FAX: (781) 344-8481
E-Mail: sales@micropowerdirect.com


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