LF300RW MPD | Alldatasheet

Document overview

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Technical content

Key Features:

  • 3W Output Power
  • UL Approved (File E245422)
  • Wide 2:1 Inputs
  • Miniature SMT Case
  • Tight Line/Load Regulation
  • 1,500 VDC Isolation
  • -40ºC to +70ºC Operation
  • 21 Standard Models
  • 1.0 MH MTBF Minimum
  • Industry Standard Pin-Out LF300RW Wide Input, 3W SMT Single & Dual Output DC/DC Con vert ers Series MicroPower Direct

292 Page Street

Stoughton, MA 02072 USA T: (781) 344-8226 F: (781) 344-8481 E: sales@micropowerdirect.com W: www.micropowerdirect.com RoHS Compliant Electrical Specifi cations Specifi cations typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifi cations subject to change without notice. Input Parameter Conditions Min. Typ. Max. Units Input Start Voltage 12 VDC Input 4.5 6.0 8.0 VDC24 VDC Input 8.0 12.0 16.0 48 VDC Input 16.0 24.0 32.0 Reverse Polarity Input Current 0.5 A Short Circuit Input Power 1,500 mW Input Filter π (Pi) Filter Output Parameter Conditions Min. Typ. Max. Units Output Voltage Accuracy ±0.5 ±1.0 % Output Voltage Accuracy Dual Output, Balanced Load ±0.5 ±1.0 % Line Regulation For Vin = Min to Max ±0.1 ±0.3 % Load Regulation Iout = 20% to 100% ±0.3 ±1.0 % Ripple & Noise (20 MHz) (Note 1) 50 75 mV P - P Ripple & Noise (20 MHz) 100 mV P - P Ripple & Noise (20 MHz) 10 mV rms Output Power Protection 120 % Transient Response Time (Note 2) 25% Load Step Change 250 500 μS Transient Response Deviation ±2.0 ±6.0 % Temperature Coeffi cient ±0.01 ±0.02 %/ºC Output Short Circuit Continuous General Parameter Conditions Min. Typ. Max. Units Isolation Voltage 60 Seconds 1,500 VDC Isolation Resistance 1,000 VDC 1,000 MΩ Isolation Capacitance 100 kHz, 1V 65 100 pF Switching Frequency 300 kHz Environmental Parameter Conditions Min. Typ. Max. Units Operating Temperature Range Ambient -40 +25 +71 ºC Operating Temperature Range Case -40 +25 +90 ºC Storage Temperature Range -40 +125 ºC Cooling Free Air Convection Humidity RH, Non-condensing 95 % Physical Case Material Non-Conductive Black Plastic (UL94-V0) Weight 0.35 Oz (10g) Reliability Specifi cations Parameter Conditions Min. Typ. Max. Units MTBF MIL HDBK 217F, 25ºC, Gnd Benign 1.0 MHours Safety Standards UL 1950, EN 60950, IEC 60950 Safety Approvals UL, cUL; File No. E245422 Absolute Maximum Ratings Parameter Conditions Min. Typ. Max. Units Input Voltage Surge (1 Sec) 12 VDC Input -0.7 25.0 VDC24 VDC Input -0.7 50.0 48 VDC Input -0.7 100.0 Lead Temperature 1.5 mm From Case For 10 Sec. 260 ºC Internal Power Dissipation All Models 2500 mW Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.

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 Pin Connections Board Layout 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. Operation at no-load will not damage these units. However, they may not meet all specifi cations. 4. Dual output units may be connected to provide a 24 VDC or 30 VDC output. To do this, connect the load across the positive (+Vout) and negative (-Vout) outputs and fl oat 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 ap- plications 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 3.3 μF is recommended, and for 24V & 48V units a 1.5 μF. 6. It is recommended that a fuse be used on the input of a power supply for protec- tion. See the table above for the correct rating. 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 Derating Curve Single Output μF Max Dual Output μF Max 4,700 ±180 Capacitive Load Model Number Input Output Effi ciency (%, Typ) Fuse Rating Slow-Blow (mA) Voltage (VDC) Current (mA) Refl ected Ripple (mA, Typ) Voltage (VDC) Current (mA, Max) Current (mA, Min)Nominal Range Full-Load No-Load Pin Single Dual 1 -Vin -Vin 2 -Vin -Vin 3N C N C

10 NC Common

11 NC NC

12 NC -Vout

14 NC NC

22 NC NC

NC: No Connection