LF500RW Series 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: • 5W Output Power Parameter Input Start Voltage • Wide 2:1 Inputs • Miniature SMT Case • Tight Line/Load Regulation • 1,500 VDC Isolation • -40ºC to +60ºC Operation • 21 Standard Models • 1.0 MH MTBF Minimum • Industry Standard Pin-Out RoHS Compliant Reverse Polarity Input Current Short Circuit Input Power Input Filter Conditions 12 VDC Input 24 VDC Input 48 VDC Input Min. 7.5 14.0 30.0 Typ. 8.0 16.0 33.0 Max. 9.0 18.0 36.0 1.0 1,000 3,000 π (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) (Note 1) Ripple & Noise (20 MHz) Ripple & Noise (20 MHz) Output Power Protection Transient Response Time (Note 2) Transient Response Deviation Temperature Coefficient Output Short Circuit Conditions Min. Typ. ±0.5 ±0.5 ±0.1 ±0.3 50 115 Dual Output, Balanced Load For Vin = Min to Max Iout = 20% to 100% 25% Load Step Change 140 250 ±2 ±0.01 Max. ±1.0 ±2.0 ±0.3 ±1.0 85 100 15 165 500 ±6 ±0.02 Units % % % % mV P - P mV P - P mV rms % µS % %/ºC Typ. Max. 650 260 750 350 Units VDC MΩ pF kHz Max. +71 +90 +125 Units ºC ºC ºC 95 % Continuous General Parameter Isolation Voltage Isolation Resistance Isolation Capacitance Switching Frequency Conditions 60 Seconds 1,000 VDC 100 kHz, 1V Min. 1,500 1,000 200 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 Conditions Min. Typ. -40 +25 -40 -40 Free Air Convection RH, Non-condensing Ambient Case Physical Case Size Case Material Weight 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 12 VDC Input 24 VDC Input 48 VDC Input 1.5 mm From Case For 10 Sec. All Models Min. -0.7 -0.7 -0.7 Typ. Max. 25.0 50.0 100.0 260 2,500 Units Absolute Maximum Ratings Parameter Input Voltage Surge (1 Sec) Lead Temperature Internal Power Dissipation VDC ºC mW Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings. Model Selection Guide Model Number LF501RW LF502RW LF503RW LF504RW LF505RW LF506RW LF507RW LF511RW LF512RW LF513RW LF514RW LF515RW LF516RW LF517RW LF521RW LF522RW LF523RW LF524RW LF525RW LF526RW LF527RW Input Voltage (VDC) Current (mA) Nominal Range Full-Load No-Load 12 9.0 - 18.0 434 20 12 9.0 - 18.0 521 20 12 9.0 - 18.0 502 20 12 9.0 - 18.0 502 20 12 9.0 - 18.0 521 20 12 9.0 - 18.0 501 20 12 9.0 - 18.0 503 20 24 18.0 - 36.0 212 5 24 18.0 - 36.0 254 5 24 18.0 - 36.0 245 5 24 18.0 - 36.0 245 5 24 18.0 - 36.0 254 5 24 18.0 - 36.0 245 5 24 18.0 - 36.0 246 5 48 36.0 - 75.0 106 3 48 36.0 - 75.0 127 3 48 36.0 - 75.0 123 3 48 36.0 - 75.0 122 3 48 36.0 - 75.0 127 3 48 36.0 - 75.0 122 3 48 36.0 - 75.0 123 3 Voltage (VDC) 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 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 Output Current (mA, Max) 1,200 1,000 417 333 ±500 ±208 ±167 1,200 1,000 417 333 ±500 ±208 ±167 1,200 1,000 417 333 ±500 ±208 ±167 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 <1.0Ω at 100 kHz) capacitor be mounted close to the converter. For 12V input units a 4.7 µF is recommended, and for 24V & 48V units a 2.2 µF. 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. Reflected Ripple Cur. Current (mA) (mA, Min) 120.0 25 100.0 25 41.7 25 33.3 25 ±50.0 25 ±20.8 25 ±16.7 25 120.0 15 100.0 15 41.7 15 33.3 15 ±50.0 15 ±20.8 15 ±16.7 15 120.0 10 100.0 10 41.7 10 33.3 10 ±50.0 10 ±20.8 10 ±16.7 10 Efficiency (%, Typ) 76 80 83 83 80 83 83 78 82 85 85 82 85 85 78 82 85 85 82 85 85 Fuse Rating Slow-Blow (mA) 1,500 1,500 1,500 1,500 1,500 1,500 1,500 700 700 700 700 700 700 700 350 350 350 350 350 350 350 Derating Curve 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 Capacitive Load Single Output (Max) 680 µF Dual Output (Max) 100 µF Mechanical Dimensions Pin Connections Pin 1 2 3 9 10 11 12 13 14 15 16 22 23 24 Single Dual On/Off On/Off -Vin -Vin -Vin -Vin NC Common NC NC NC -Vout NC NC NC NC +Vout +Vout NC NC -Vout Common +Vin +Vin +Vin +Vin NC NC NC: No Connection MicroPower Direct www.micropowerdirect.com 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • Notes: • All dimens dimensions are typical in inches (mm) • Tolerance xx.xx = ±0.01 (±0.25) • Pin 1 is ma marked by a “dot” or indentation on the uni unit FAX: (781) 344-8481 • E-Mail: [email protected]