LF500RU Series Very Wide Input, 5W SMT Single & Dual Output 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 • 5W Output Power Input Start Voltage • Wide 4:1 Inputs Reverse Polarity Input Current Short Circuit Input Power Input Filter • Miniature SMT Case • Tight Line/Load Regulation • 1,500 VDC Isolation • -40ºC to +71ºC Operation • 14 Standard Models • 1.0 MH MTBF Minimum • Industry Standard Pin-Out Conditions 24 VDC Input 48 VDC Input Min. 7.0 14.0 Typ. 8.0 16.0 Max. 9.0 18.0 1.0 1,000 3,000 (Pi) Filter (Meets EN55022 Class A) Units VDC A mW Output Parameter Output Voltage Accuracy Output Voltage Balance Line Regulation Load Regulation Ripple & Noise (20 MHz) Ripple & Noise (20 MHz) Ripple & Noise (20 MHz) Output Power Protection Transient Response Time, See Note 2 Transient Response Deviation Temperature Coefficient Output Short Circuit Conditions Min. Typ. ±0.5 ±0.5 ±0.2 ±0.3 50 Max. ±2.0 ±3.0 ±1.0 ±1.0 85 100 15 250 ±2 ±0.01 Continuous (Autorecovery) 500 ±6 ±0.02 Dual Output, Balanced Load For Vin = Min to Max Iout = 10% to 100% See Note 1 115 25% Load Step Change Units % % % % mV P - P mV P - P mV rms % µS % %/ºC General Parameter Isolation Voltage Isolation Resistance Isolation Capacitance Switching Frequency Conditions 60 Seconds 1,000 VDC 100 kHz, 1V Min. 1,500 1,000 Typ. Max. Units VDC M pF kHz 650 340 750 Typ. +25 Max. +71 +90 +125 Units ºC ºC ºC 95 % Environmental MicroPower Direct 292 Page Street Suite D Stoughton, MA 02072 USA T: (781) 344-8226 F: (781) 344-8481 E: [email protected] W: www.micropowerdirect.com Parameter Operating Temperature Range Operating Temperature Range Storage Temperature Range Cooling Humidity Physical Case Size Case Material Weight Conditions Ambient Case Min. -40 -40 Free Air Convection RH, Non-condensing 1.31 x 0.81 x 0.40 Inches (33.4 x 20.6 x 10.2 mm) Non-Conductive Black Plastic (UL94-V0) 0.49 Oz (14g) Reliability Specifications Parameter MTBF Conditions MIL HDBK 217F, 25ºC, Gnd Benign Min. 1.0 Typ. Max. Units MHours Conditions 24 VDC Input 48 VDC Input 1.5 mm From Case For 10 Sec. All Models Min. -0.7 -0.7 Typ. Max. 50.0 100.0 260 2,500 Units Absolute Maximum Ratings Parameter Input Voltage Surge (1 Sec) Lead Temperature Internal Power Dissipation Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings. www.micropowerdirect.com VDC ºC mW www.micropowerdirect.com Model Selection Guide Model Number LF501RU LF502RU LF503RU LF504RU LF505RU LF506RU LF507RU LF511RU LF512RU LF513RU LF514RU LF515RU LF516RU LF517RU Input Voltage (VDC) Nominal Range 24 9.0 - 36.0 24 9.0 - 36.0 24 9.0 - 36.0 24 9.0 - 36.0 24 9.0 - 36.0 24 9.0 - 36.0 24 9.0 - 36.0 48 18.0 - 75.0 48 18.0 - 75.0 48 18.0 - 75.0 48 18.0 - 75.0 48 18.0 - 75.0 48 18.0 - 75.0 48 18.0 - 75.0 Current (mA) Full-Load No-Load 217 20 260 20 251 20 251 20 260 20 251 20 252 20 109 10 130 10 126 10 125 10 130 10 125 10 126 10 Voltage Output Current Current (VDC) (mA, Max) (mA, Min) 1,200 1,000 417 333 ±500 ±208 ±167 1,200 1,000 417 333 ±500 ±208 ±167 120.0 100.0 41.7 33.3 ±50.0 ±20.8 ±16.7 120.0 100.0 41.7 33.3 ±50.0 ±20.8 ±16.7 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 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. No-load operation will not damage these units, however, they may not meet specifications. 4. Dual output units may provide a 10V, 24V or 30V output. To do this, connect the load across the positive (+Vout) and negative (-Vout) outputs and float 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 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 24V input units a 4.7 µF is recommended, and for 48V units a 2.2 µF. 6. Maximum capacitive load for 3.3V & 5V units is 2,000 µF, for 12V units 470 µF, for 15V & ±12V units 330 µF, for ±5V units 680 µF, and for ±15V units 220 µF. 7. 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. Reflected ciency Ripple Cur. Effi (%, Typ) (mA) 15 15 15 15 15 15 15 10 10 10 10 10 10 10 76 80 83 83 80 83 83 76 80 83 83 80 83 83 Fuse Rating Slow-Blow (mA) 1,500 1,500 1,500 1,500 1,500 1,500 1,500 700 700 700 700 700 700 700 Derating Curve Mechanical Dimensions Remote ON/OFF Parameter Supply On Supply Off Standby Input Current Control Common Condition Units 2.5 to 5.5 or Open Circuit VDC -0.7 to 0.8 VDC 10 mA Referenced to Negative Input (-Vin) Remote ON/OFF Notes: 1. Maximum sink current at the on/off pin (pin 1) during a logic low is 300 µA. 2. Maximum allowable leakage current of a switch connected to the on/off terminal (Pin 1) at logic high (2.5V to 100V) is 200 µA. Board Layout Pin Connections Pin Single Dual 1 On/Off On/Off 2 -Vin -Vin 3 -Vin -Vin 9 NC Common 10 NC NC 11 NC -Vout 12 NC NC 13 NC NC 14 +Vout +Vout 15 NC NC 16 -Vout Common 22 +Vin +Vin 23 +Vin +Vin 24 NC NC NC: No Connection 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 We Power Your Success - For Less! 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: [email protected]