LF100SI
Series
High Isolation, 1W
Single Output SMT
DC/DC Converters
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Key Features:
•
1W Output Power
•
Ultra-Miniature SMT Case
•
3,000 VDC Isolation
•
5V, 12V & 24V Inputs
•
-40ºC to +85ºC Operation
•
9 Standard Models
•
2.0 MH MTBF Minimum
•
Industry Standard Pin-Out
Parameter
Input Voltage Range
Reverse Polarity Input Current
Input Filter
Conditions
5 VDC Input
12 VDC Input
24 VDC Input
Min.
4.5
10.8
21.6
Typ.
5.0
12.0
24.0
Max.
5.5
13.2
26.4
0.3
Units
VDC
A
Capacitor
Conditions
For Vin Change of 1%
Min.
Typ.
±1.5
±1.2
75
Over Line, Load & Temp.
120
±0.01
Momentary (0.5 Sec.)
Conditions
60 Seconds
500 VDC
100 kHz, 1V
50
Conditions
Ambient
Case
Min.
-40
-40
-40
Free Air Convection
RH, Non-condensing
95
%
Min.
3,000
10
60
100
Typ.
+25
100
150
Max.
+85
+90
+125
Typ.
Max.
Units
VDC
GΩ
pF
kHz
Units
ºC
ºC
ºC
±0.02
See Model Selection Guide
100
150
5
mV P - P
mV P - P
mv rms
%
%/ºC
Max.
±4.0
±1.5
Units
%
%
Output
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation (Note 1)
Ripple & Noise (20 MHz) (Note 2)
Ripple & Noise (20 MHz)
Ripple & Noise (20 MHz)
Output Power Protection
Temperature Coeiffcient
Output Short Circuit
RoHS Compliant
General
Parameter
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Cooling
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
T: (781) 344-8226
F: (781) 344-8481
E: sales@micropowerdirect.com
W: www.micropowerdirect.com
Humidity
Physical
Case Size
Case Material
Weight
0.60 x 0.31 x 0.26 Inches (15.24 x 8.0 x 6.7 mm)
Molded Black Plastic (UL94-V0)
0.07 Oz (2.2g)
Conditions
MIL HDBK 217F, 25ºC, Gnd Benign
Conditions
5 VDC Input
Input Voltage Surge (1 Sec)
Lead Temperature
Internal Power Dissipation
12 VDC Input
24 VDC Input
1.5 mm From Case For 10 Sec.
All Models
Min.
2.0
Min.
-0.7
-0.7
-0.7
Typ.
Max.
9.0
18.0
30.0
300
550
ºC
mW
VDC
Typ.
Max.
Units
MHours
Units
Reliability Specifications
Parameter
MTBF
Absolute Maximum Ratings
Parameter
Caution:
Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
Model Selection Guide
Input
Model
Number
LF101SI
LF102SI
LF103SI
LF111SI
LF112SI
LF113SI
LF121SI
LF122SI
LF123SI
Voltage (VDC)
Nominal
5
5
5
12
12
12
24
24
24
Range
4.5 - 5.5
4.5 - 5.5
4.5 - 5.5
10.8 - 13.2
10.8 - 13.2
10.8 - 13.2
21.6 - 26.4
21.6 - 26.4
21.6 - 26.4
Load
Regulation
Voltage Current
Current
(VDC) (mA, Max) (mA, Min) (%, Max)
Full-Load No-Load
Current (mA)
281
258
258
117
106
104
58
53
53
30
30
30
12
12
12
7
7
7
5.0
12.0
15.0
5.0
12.0
15.0
5.0
12.0
15.0
200.0
84.0
67.0
200.0
84.0
67.0
200.0
84.0
67.0
4.0
1.5
1.0
4.0
1.5
1.0
4.0
1.5
1.0
10
7
7
8
5
5
8
5
5
Output
Efficiency
(%, Typ)
71
78
78
71
79
80
71
78
79
Fuse Rating
Slow-Blow
(mA)
500
500
500
200
200
200
100
100
100
Notes:
1. Load regulation is measured for an output change of 20%
to 100%.
2. When measuring output ripple, it is recommended that an
external 0.33
µF
ceramic capacitor be placed from the +Vout
pin to the -Vout pin. For noise sensitive applications, the use
of 0.47
µF
capacitors will reduce the output ripple.
3. Operation at no-load will not damage these units. However,
they may not meet all specifications.
4. 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 sup-
plied 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
5V input units a 2.2
µF
is recommended, for 12V input units,
a 1.0
µF,
and for 24V input units, a 0.47
µF.
5. 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.
Derating Curve
Mechanical Dimensions
Pin Connections
Pin
1
2
3
5
6
Description
-Vin
+Vin
NA
-Vout
NA
Pin
7
8
10
11
12
Description
NA
+Vout
NA
NA
NA
Board Layout
NA = Not available for connection
Capacitive Load
5V Out
µF Max
33
12 & 15V Out
µF Max
4.7
MicroPower Direct
www.micropowerdirect.com
•
Notes:
•
All dimensions are typical in inches (mm)
•
Tolerance: Inches x.xx =
±
0.01
Millimeters x.x =
±
0.25
x.xx =
±
0.13
Pin:
±
0.002 (
±
0.05)
•
Pin 1 is mark by a “dot” or indentation
marked
on the unit. T curved edge of the case
The
indicates the Pin 1 side.
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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