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UCC25705-Q1 Datasheet(PDF) 9 Page - Texas Instruments |
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UCC25705-Q1 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 19 page 4 5 RC DISCH 3 VFF R T C T V IN FF ON T T IN V T R C where V = a ´ ´ a = T T 1 f R C 75ns = a´ ´ + UCC25705-Q1, UCC25706-Q1 www.ti.com SLUSAI1 – MAY 2011 Oscillator Without Duty Cyle Clamp (MODE = 0) In this mode, the timing capacitor is discharged through a low impedance directly to ground. The DISCH pin is externally grounded. A comparator connected to DISCH senses the ground connection and disables both the discharge current source and VFF current source. A resistor divider is now required to set VFF. Figure 4. Ocsillator Without Clamp (MODE = 0) In this mode, the on-time is approximately: The off-time is: TOFF ≈ 75 ns The frequency is: Copyright © 2011, Texas Instruments Incorporated 9 |
Similar Part No. - UCC25705-Q1_15 |
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Similar Description - UCC25705-Q1_15 |
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