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TPS54980PWPR Datasheet(PDF) 6 Page - Texas Instruments |
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TPS54980PWPR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 17 page  TPS54980 SLVS452A − FEBRUARY 2003 − REVISED FEBRUARY 2005 www.ti.com 6 INTERNAL BLOCK DIAGRAM Falling Edge Deglitch Enable Comparator 1.2 V 2.95 V Hysteresis: 0.03 V 2.5 µs Falling and Rising Edge Deglitch 2.5 µs VIN UVLO Comparator Hysteresis: 0.16 V Multiplexer Reference − + Error Amplifier Thermal Shutdown 150 °C SHUTDOWN SS_DIS PWM Comparator OSC Leading Edge Blanking 100 ns RQ S Adaptive Dead-Time and Control Logic SHUTDOWN 15 m Ω VIN REG VBIAS VIN BOOT VIN PH CO PGND PWRGD Falling Edge Deglitch 35 µs VSENSE SHUTDOWN 0.90 Vref Hysteresis: 0.03 Vref Powergood Comparator AGND VBIAS ILIM Comparator Core RT COMP VSENSE ENA TPS54980 15 m Ω LOUT TRACKIN 25 ns Adaptive Dead Time Sense FET VIN I/O |
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