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TPS54872PWPR Datasheet(PDF) 6 Page - Texas Instruments |
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TPS54872PWPR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 17 page TPS54872 SLVS436C − JULY 2002 − REVISED FEBRUARY 2005 www.ti.com 6 INTERNAL BLOCK DIAGRAM Falling Edge Delay UVLO VSENSE VIN /T_SHUT AGND PH DEADTIME Reference/DAC OSC UVLO BOOT PGND SHUTDOWN SHUTDOWN BIAS UVLO SHUTDOWN R Q S ENA ILIM COMPARATOR Lout C V VIN STATUS PWM COMPARATOR ERROR AMPLIFIER TPS54872 Iset Ct Vilim SAMPLING LOGIC highin highdr highin highdr SHUTDOWN VPHASE 0.8 V SHUTDOWN Rising Edge Delay REG BIAS Vbias VIN Vin_uvlo VIN UVLO COMPARATOR ENABLE COMPARATOR RT BG GOOD Rising Edge Delay Delay MUX FAULT FAULT REFIN VDDQ 1−4 µs O TTQ RELATED DC/DC PRODUCTS D TPS54372 D TPS54672 |
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