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LM3450MTX Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM3450MTX Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 28 page  Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V CC, HOLD, DIM, BIAS -0.3V to 25.0V HOLD Power 250 mW Continuous BIAS Current 5.0mA Continuous ZCD Current +/- 10mA COMP, FB, V AC, FLT1, FLT2, V REF, CS, VADJ -0.3V to 7.0V I SEN -7.0V to 7.0V GATE -0.3V to 18V Continuous -2.5V for 100ns 20.5V for 100ns -1mA to +1mA Continuous Continuous Power Dissipation Internally Limited Maximum Junction Temperature Internally Limited Storage Temperature Range -65°C to +150°C Maximum Lead Temperature (Solder and Reflow) (Note 2) 260°C ESD Susceptibility (Note 3) HBM 2kV MM 200V FICDM 750V Operating Conditions (Note 1) V CC Range 8.5V to 20V Junction Temperature Range -40°C to +125°C Electrical Characteristics (Note 1) Unless otherwise specified V CC = 14V. Specifications in standard type face are for TJ = 25°C and those with boldface type apply over the full Operating Temperature Range ( T J = −40°C to +125°C). Typical values represent the most likely parametric norm at T A = TJ = +25°C, and are provided for reference purposes only. Symbol Parameter Conditions Min (Note 4) Typ (Note 5) Max (Note 4) Units SUPPLY VOLTAGE INPUT (V CC) V CC-RISE Controller Enable Threshold V CC Rising 12.2 13.0 13.6 V V CC-FALL Controller Disable Threshold V CC Falling 7.4 7.9 8.5 Glitch Filter Delay 9 µs Turn-on Delay 40 I Q V CC Quiescent Current No Switching 1.6 mA I Q-SD V CC Shutdown Current V FB = 0V 515 625 µA ERROR AMPLIFIER & COMPENSATION (FB, COMP) V FB FB Reference (Normal Operation) 2.43 2.50 2.57 V Input Bias Current V FB = 2.5V 100 nA G M Transconductance V FB = 2.5V 69 115 161 µS Output Source / Sink Capability 60 85 110 µA FB Pull-up Current Source V FB < 1.8V 43 51 59 COMP Pull-up Resistor 5 k Ω V CMP-B COMP Low Threshold (Burst) V CMP Falling V THM -0.08 V COMP Low Hysteresis 20 mV V FB-SD Low Threshold (Shutdown) V FB Falling 150 168 186 FB Low Hysteresis 20 V FB-EAD FB Mid Threshold (EA Disabled) V FB Falling 328 346 368 FB Mid Hysteresis 20 V FB-OV FB High Threshold (Over-voltage) 1.20 x V FB 1.22 x V FB V COMP Pre-bias Source Current V CMP = 0.5V 415 µA V THM Minimum COMP Voltage (Normal) 1.47 V ANGLE DEMODULATION & MULTIPLIER (COMP, V AC) V AC-DET V AC Angle Detection Threshold 334 356 378 mV Angle Demodulation Delay Time Both edges 8 µs VAC Dynamic Input Voltage Range 0 to 5.5 V COMP Dynamic Input Voltage Range V THM to VTHM +2 V AC Input Impedance 500 k Ω www.national.com 4 |
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