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UC1847L Fiches technique(PDF) 9 Page - Texas Instruments |
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UC1847L Fiches technique(HTML) 9 Page - Texas Instruments |
9 / 24 page OSC T T 2.2 f R C A small RC filter may be required in some applications to reduce switch transients. Differential input allows remote, noise free sensing. UC1846, UC1847, UC2846 UC2847, UC3846, UC3847 www.ti.com SLUS352C – JANUARY 1997 – REVISED DECEMBER 2015 Feature Description (continued) Figure 3. Current Sense Amplifier Connection 7.3.2 Oscillator By implementing the oscillator using all NPN transistors, the UCx846/7 achieves excellent temperature stability and waveform clarity at frequencies in excess of 1 MHz. Referring to Figure 4, an external resistor RT is used to generate a constant current into a capacitor CT to produce a linear sawtooth waveform. Oscillator frequency may be approximated by selecting RT and CT such that: (1) Figure 4. Oscillator Circuit Copyright © 1997–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: UC1846 UC1847 UC2846 UC2847 UC3846 UC3847 |
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