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LF523RW Datasheet(PDF) 2 Page - MicroPower Direct, LLC |
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LF523RW Datasheet(HTML) 2 Page - MicroPower Direct, LLC |
2 / 2 page Model Selection Guide Mechanical Dimensions 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 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. 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 connect- ed to the on/off terminal (Pin 1) at logic high (2.5V to 100V) is 200 µA. Parameter Condition Units Supply On 2.5 to 5.5 or Open Circuit VDC Supply Off -0.7 to 0.8 VDC Standby Input Current 10 mA Control Common Referenced to Negative Input (-Vin) Remote ON/OFF Derating Curve Single Output (Max) 680 µF Dual Output (Max) 100 µF Capacitive Load 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 Model Number Input Output Reflected Ripple Cur. (mA) Efficiency (%, Typ) Fuse Rating Slow-Blow (mA) Voltage (VDC) Current (mA) Voltage (VDC) Current (mA, Max) Current (mA, Min) Nominal Range Full-Load No-Load LF501RW 12 9.0 - 18.0 434 20 3.3 1,200 120.0 25 76 1,500 LF502RW 12 9.0 - 18.0 521 20 5.0 1,000 100.0 25 80 1,500 LF503RW 12 9.0 - 18.0 502 20 12.0 417 41.7 25 83 1,500 LF504RW 12 9.0 - 18.0 502 20 15.0 333 33.3 25 83 1,500 LF505RW 12 9.0 - 18.0 521 20 ±5.0 ±500 ±50.0 25 80 1,500 LF506RW 12 9.0 - 18.0 501 20 ±12.0 ±208 ±20.8 25 83 1,500 LF507RW 12 9.0 - 18.0 503 20 ±15.0 ±167 ±16.7 25 83 1,500 LF511RW 24 18.0 - 36.0 212 5 3.3 1,200 120.0 15 78 700 LF512RW 24 18.0 - 36.0 254 5 5.0 1,000 100.0 15 82 700 LF513RW 24 18.0 - 36.0 245 5 12.0 417 41.7 15 85 700 LF514RW 24 18.0 - 36.0 245 5 15.0 333 33.3 15 85 700 LF515RW 24 18.0 - 36.0 254 5 ±5.0 ±500 ±50.0 15 82 700 LF516RW 24 18.0 - 36.0 245 5 ±12.0 ±208 ±20.8 15 85 700 LF517RW 24 18.0 - 36.0 246 5 ±15.0 ±167 ±16.7 15 85 700 LF521RW 48 36.0 - 75.0 106 3 3.3 1,200 120.0 10 78 350 LF522RW 48 36.0 - 75.0 127 3 5.0 1,000 100.0 10 82 350 LF523RW 48 36.0 - 75.0 123 3 12.0 417 41.7 10 85 350 LF524RW 48 36.0 - 75.0 122 3 15.0 333 33.3 10 85 350 LF525RW 48 36.0 - 75.0 127 3 ±5.0 ±500 ±50.0 10 82 350 LF526RW 48 36.0 - 75.0 122 3 ±12.0 ±208 ±20.8 10 85 350 LF527RW 48 36.0 - 75.0 123 3 ±15.0 ±167 ±16.7 10 85 350 Notes: • All dimens • Tolerance x • Pin 1 is ma on the uni 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 |
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