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UCC3808D-1G4 Datasheet(PDF) 4 Page - Texas Instruments |
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UCC3808D-1G4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 18 page UCC2808-1, UCC2808-2, UCC3808-1, UCC3808-2 LOW POWER CURRENT MODE PUSH-PULL PWM SLUS168D – APRIL 1999 – REVISED AUGUST 2002 4 www.ti.com electrical characteristics, TA = 0°C to 70°C for the UCC3808–x, –40°C to 85°C for the UCC2808–x and –55°C to 125 °C for the UCC1808–x, VDD = 10 V (See Note 6), 1 µF capacitor from VDD to GND, R = 22 kΩ, C = 330 pF, TA = TJ, (unless otherwise specified) output section PARAMETER TEST CONDITIONS MIN TYP MAX UNITS OUT low level I = 100 mA 0.5 1 V OUT high level I = –50 mA, VDD – OUT 0.5 1 V Rise time CL = 1 nF 25 60 ns Fall time CL = 1 nF 25 60 ns undervoltage lockout section PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Start threshold UCCx808–1, See Note 6 11.5 12.5 13.5 V Start threshold UCCx808–2 4.1 4.3 4.5 V Minim m operating oltage after start UCCx808–1 7.6 8.3 9 V Minimum operating voltage after start UCCx808–2 3.9 4.1 4.3 V H steresis UCCx808–1 3.5 4.2 5.1 V Hysteresis UCCx808–2 0.1 0.2 0.3 V soft start section PARAMETER TEST CONDITIONS MIN TYP MAX UNITS COMP rise time FB = 1.8 V, rise from 0.5 V to 4 V 3.5 20 ms overall section PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Startup current VDD < start threshold 130 260 µA Operating supply current FB = 0 V, CS = 0 V, See Note 5 and 6 1 2 mA VDD zener shunt voltage IDD = 10 mA, See Note 4 13 14 15 V NOTES: 1. Measured at RC. Signal amplitude tracks VDD. 2. Gain is defined by: A + DV COMP DV CS ,0 v V CS v 0.4 V, 3. Parameter measured at trip point of latch with FB at 0V. 4. Start threshold and zener shunt threshold track one another. 5. For UCCx808–1, set VDD above the start threshold before setting at 10 V. 6. Does not include current in the external oscillator network. |
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Similar Description - UCC3808D-1G4 |
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