LF121DI View Datasheet(PDF) - MicroPower Direct, LLC
Part Name
Description
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LF121DI Datasheet PDF : 2 Pages
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LF100DI Series
High Isolation, 1W
Dual 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
Output
Parameter
Output Voltage Accuracy
Output Voltage Balance
Conditions
5 VDC Input
12 VDC Input
24 VDC Input
Min.
4.5
10.8
21.6
Capacitor
Typ.
5.0
12.0
24.0
Max.
5.5
13.2
26.4
0.3
Units
VDC
A
Conditions
Min.
Balanced Loads
Typ.
±1.5
±0.1
Max.
±4.0
±1.0
Units
%
%
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 Coefficient
±0.01 ±0.02 %/ºC
Output Short Circuit
RoHS Compliant General
Momentary (0.5 Sec.)
Parameter
Conditions
Min. Typ. Max. Units
Isolation Voltage
60 Seconds 3,000
VDC
Isolation Resistance
500 VDC 10
GΩ
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
ºC
Operating Temperature Range
Case -40
+90
ºC
Storage Temperature Range
-40
+125
ºC
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
Cooling
Humidity
Physical
Case Size
Case Material
Free Air Convection
RH, Non-condensing
95
%
0.60 x 0.31 x 0.26 Inches (15.24 x 8.0 x 6.7 mm)
Molded Black Plastic (UL94-V0)
T: (781) 344-8226
F: (781) 344-8481
E: sales@micropowerdirect.com
W: www.micropowerdirect.com
Weight
Reliability Specifications
Parameter
MTBF
0.07 Oz (2.2g)
Conditions
Min. Typ. Max.
MIL HDBK 217F, 25ºC, Gnd Benign 2.0
Units
MHours
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
ºC
Internal Power Dissipation
All Models
550
mW
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
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