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: Parameter Conditions Min. Typ. Max. Units
· 1W Output Power 5 VDC Input 4.5 5.0 5.5
· Ultra-Miniature SMT Case Input Voltage Range 12 VDC Input 10.8 12.0 13.2 VDC
· 3,000 VDC Isolation 24 VDC Input 21.6 24.0 26.4
· 5V, 12V & 24V Inputs Reverse Polarity Input Current 0.3 A
· -40șC to +85șC Operation Input Filter Capacitor
· 9 Standard Models Output
· 2.0 MH MTBF Minimum Parameter Conditions Min. Typ. Max. Units
Output Voltage Accuracy ±1.5 ±4.0 %
· Industry Standard Pin-Out
Line Regulation For Vin Change of 1% ±1.2 ±1.5 %
Load Regulation (Note 1) See Model Selection Guide
Ripple & Noise (20 MHz) (Note 2) 75 100 mV P - P
Ripple & Noise (20 MHz) Over Line, Load & Temp. 150 mV P - P
Ripple & Noise (20 MHz) 5 mv rms
Output Power Protection 120 %
Temperature Coeiffcient ±0.01 ±0.02 %/șC
Output Short Circuit Momentary (0.5 Sec.)
General
RoHS Compliant Parameter Conditions Min. Typ. Max. Units
Isolation Voltage 60 Seconds 3,000 VDC
Isolation Resistance 500 VDC 10 G
Isolation Capacitance 100 kHz, 1V 60 100 pF
Switching Frequency 50 100 150 kHz
Environmental
Parameter Conditions Min. Typ. Max. Units
Operating Temperature Range Ambient -40 +25 +85 șC
Operating Temperature Range Case -40 +90 șC
Storage Temperature Range -40 +125 șC
Cooling Free Air Convection
Humidity RH, Non-condensing 95 %
MicroPower Direct
292 Page Street Physical
Suite D Case Size 0.60 x 0.31 x 0.26 Inches (15.24 x 8.0 x 6.7 mm)
Stoughton, MA 02072 Case Material Molded Black Plastic (UL94-V0)
USA
Weight 0.07 Oz (2.2g)
T: (781) 344-8226 Reliability Specifications
F: (781) 344-8481 Parameter Conditions Min. Typ. Max. Units
E: sales@micropowerdirect.com
MTBF MIL HDBK 217F, 25șC, Gnd Benign 2.0 MHours
W: www.micropowerdirect.com
Absolute Maximum Ratings
Parameter Conditions Min. Typ. Max. Units
5 VDC Input -0.7 9.0
Input Voltage Surge (1 Sec) 12 VDC Input -0.7 18.0 VDC
24 VDC Input -0.7 30.0
Lead Temperature 1.5 mm From Case For 10 Sec. 300 șC
Internal Power Dissipation All Models 550 mW
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
CompuMess Elektronik GmbH · Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11
info@compumess.de · www.compumess.de · www.netzteile.de
Model Selection Guide
Input Output
Load Fuse Rating
Model Efficiency
Voltage (VDC) Current (mA) Voltage Current Current Regulation Slow-Blow
Number (%, Typ)
Nominal Range Full-Load No-Load (VDC) (mA, Max) (mA, Min) (%, Max) (mA)
LF101SI 5 4.5 - 5.5 281 30 5.0 200.0 4.0 10 71 500
LF102SI 5 4.5 - 5.5 258 30 12.0 84.0 1.5 7 78 500
LF103SI 5 4.5 - 5.5 258 30 15.0 67.0 1.0 7 78 500
LF111SI 12 10.8 - 13.2 117 12 5.0 200.0 4.0 8 71 200
LF112SI 12 10.8 - 13.2 106 12 12.0 84.0 1.5 5 79 200
LF113SI 12 10.8 - 13.2 104 12 15.0 67.0 1.0 5 80 200
LF121SI 24 21.6 - 26.4 58 7 5.0 200.0 4.0 8 71 100
LF122SI 24 21.6 - 26.4 53 7 12.0 84.0 1.5 5 78 100
LF123SI 24 21.6 - 26.4 53 7 15.0 67.0 1.0 5 79 100
Notes:
1. Load regulation is measured for an output change of 20%
Derating Curve
to 100%.
2. When measuring output ripple, it is recommended that an
external 0.33 ”F ceramic capacitor be placed from the +Vout
pin to the -Vout pin. For noise sensitive applications, the use
of 0.47 ”F 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 <1.0 at
100 kHz) capacitor be mounted close to the converter. For
5V input units a 2.2 ”F is recommended, for 12V input units,
a 1.0 ”F, and for 24V input units, a 0.47 ”F.
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.
Mechanical Dimensions
Pin Connections Board Layout
Pin Description Pin Description
1 -Vin 7 NA
2 +Vin 8 +Vout
3 NA 10 NA
5 -Vout 11 NA
6 NA 12 NA
NA = Not available for connection
Capacitive Load
5V Out 12 & 15V Out
”F Max ”F Max
33 4.7
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)
MicroPower Direct
· 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.
www.micropowerdirect.com GmbH · Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
CompuMess Elektronik
292 Page Street Ste D Stoughton, MA 02072 · Telefon (089) 32 15 01 - 0 · Telefax (089) 32 · E-Mail: sales@micropowerdirect.com
TEL: (781) 344-8226 · FAX: (781) 344-8481 15 01 - 11
info@compumess.de · www.compumess.de · www.netzteile.de