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LM5025BMTCX Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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LM5025BMTCX Datasheet(HTML) 2 Page - National Semiconductor (TI) |
2 / 16 page Connection Diagram 20141116 16-Lead TSSOP, LLP Ordering Information Order Number Package Type NSC Package Drawing Supplied As LM5025BMTC TSSOP-16 MTC-16 92 Units per anti-static tube LM5025BMTCX TSSOP-16 MTC-16 2500 Units on Tape and Reel LM5025BSD LLP-16 SDA-16A 1000 Units on Tape and Reel LM5025BSDX LLP-16 SDA-16A 4500 Units on Tape and Reel Pin Descriptions Pin Name Description Application Information 1V IN Source Input Voltage Input to start-up regulator. Input range 13V to 100V, with transient capability to 105V. 2 RAMP Modulator ramp signal An external RC circuit from Vin sets the ramp slope. This pin is discharged at the conclusion of every cycle by an internal FET, initiated by either the internal clock or the V*Sec Clamp comparator. 3 CS1 Current sense input for cycle-by-cycle limiting If CS1 exceeds 0.25V the outputs will go into Cycle-by-Cycle current limit. CS1 is held low for 50ns after OUT_A switches high providing leading edge blanking. 4 CS2 Current sense input for soft restart If CS2 exceeds 0.5V the outputs will be disabled and a softstart commenced. The soft-start capacitor will be fully discharged and then released with a pull-up current of 1µA. After the first output pulse (when SS =1V), the SS charge current will revert back to 20µA. 5 TIME Output overlap/Deadtime control An external resistor (R SET) sets either the overlap time or dead time for the active clamp output. An R SET resistor connected between TIME and GND produces in-phase OUT_A and OUT_B pulses with overlap. An R SET resistor connected between TIME and REF produces out-of-phase OUT_A and OUT_B pulses with deadtime. 6 REF Precision 5 volt reference output Maximum output current: 10mA Locally decouple with a 0.1µF capacitor. Reference stays low until the V CC UV comparator and line UVLO comparator are satisfied. www.national.com 2 |
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