LF200D Series
Ultra-Miniature, 2W
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: Parameter Conditions Min. Typ. Max. Units
· 2W Output Power 5 VDC Input 4.5 5.0 5.5
Input Voltage Range 12 VDC Input 10.8 12.0 13.2 VDC
· Ultra-Miniature SMT Case
24 VDC Input 21.6 24.0 26.4
· 1,000 VDC Isolation Reverse Polarity Input Current 0.3 A
· 5V, 12 & 24V Inputs Input Filter Capacitor
· -40șC to +85șC Operation Output
· 7 Standard Models Parameter Conditions Typ. Min. Max. Units
Output Voltage Accuracy ±1.5 ±4.0 %
· 2.0 MH MTBF Minimum
Output Voltage Balance Dual Output, Balanced Load ±0.1 ±1.0 %
· 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) 50 75 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 %/șC
Output Short Circuit Momentary (0.5 Sec.)
RoHS Compliant General
Parameter Conditions Min. Typ. Max. Units
Isolation Voltage 60 Seconds 1,000 VDC
Isolation Resistance 500 VDC 10 G
Isolation Capacitance 100 kHz, 1V 60 100 pF
Switching Frequency 70 100 120 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
MicroPower Direct Humidity RH, Non-condensing 95 %
292 Page Street Physical
Suite D Case Size 0.60 x 0.36 x 0.34 Inches (15.3 x 9.3 x 8.7 mm)
Stoughton, MA 02072
USA Case Material Molding (UL94-V0)
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) VDC
12 VDC Input -0.7 18.0
24 VDC Input -0.7 30.0
Lead Temperature 1.5 mm From Case For 10 Sec. 300 șC
Internal Power Dissipation All Models 650 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)
LF201D 5 4.5 - 5.5 519 60 ±5.0 ±200.0 ±4.0 10 77 1,000
LF202D 5 4.5 - 5.5 504 60 ±12.0 ±83.0 ±1.5 7 79 1,000
LF203D 5 4.5 - 5.5 501 60 ±15.0 ±66.0 ±1.0 7 79 1,000
LF212D 12 10.8 - 13.2 202 30 ±12.0 ±83.0 ±1.5 5 82 500
LF213D 12 10.8 - 13.2 201 30 ±15.0 ±66.0 ±1.0 5 82 500
LF222D 24 21.6 - 26.4 102 15 ±12.0 ±83.0 ±1.5 5 81 200
LF223D 24 21.6 - 26.4 100 15 ±15.0 ±66.0 ±1.0 5 82 200
Notes:
1. Load regulation is measured for an output change of 20% to Derating Curve
100%.
2. When measuring output ripple, it is recommended that an external
0.33 ”F ceramic capacitor be placed from each output to common.
For noise sensitive applications, the use of 1.5 ”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 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 <1.0 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 4.7 ”F.
5. The outputs of these units may be connected to provide a 10 VDC,
24 VDC or 30 VDC output. To do this, connect the load across the
positive (+Vout) and negative (-Vout) ouputs and float the ouput
common.
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.
Mechanical Dimensions
Capacitive Load
Output ±5 VDC ±12 & ±15 VDC
”F Max ±10 ”F ±4.7 ”F
Pin Connections
Pin Description Pin Description
1 -Vin 6 No Pin
2 +Vin 7 +Vout
3 No Pin 8 No Pin
4 Common 9 No Pin
5 -Vout 10 NA
NA = Not for electrical connection
Board Layout
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
MicroPower Direct
www.micropowerdirect.com
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